WO2023007588A1 - 情報処理装置、プログラム及び測位方法 - Google Patents
情報処理装置、プログラム及び測位方法 Download PDFInfo
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- WO2023007588A1 WO2023007588A1 PCT/JP2021/027757 JP2021027757W WO2023007588A1 WO 2023007588 A1 WO2023007588 A1 WO 2023007588A1 JP 2021027757 W JP2021027757 W JP 2021027757W WO 2023007588 A1 WO2023007588 A1 WO 2023007588A1
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- position information
- imaging device
- information
- indicating
- reference position
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- 230000010365 information processing Effects 0.000 title claims abstract description 60
- 238000000034 method Methods 0.000 title claims description 16
- 230000001360 synchronised effect Effects 0.000 claims abstract description 9
- 238000003384 imaging method Methods 0.000 claims description 108
- 238000004891 communication Methods 0.000 claims description 30
- 238000004364 calculation method Methods 0.000 description 15
- 238000010586 diagram Methods 0.000 description 14
- 230000006870 function Effects 0.000 description 11
- 238000012545 processing Methods 0.000 description 10
- 230000008901 benefit Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000001934 delay Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012905 input function Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000005433 ionosphere Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000005436 troposphere Substances 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C11/00—Photogrammetry or videogrammetry, e.g. stereogrammetry; Photographic surveying
- G01C11/04—Interpretation of pictures
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/005—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 with correlation of navigation data from several sources, e.g. map or contour matching
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
- G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/40—Correcting position, velocity or attitude
- G01S19/41—Differential correction, e.g. DGPS [differential GPS]
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
- G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/42—Determining position
- G01S19/51—Relative positioning
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/04—Detecting movement of traffic to be counted or controlled using optical or ultrasonic detectors
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/14—Traffic control systems for road vehicles indicating individual free spaces in parking areas
- G08G1/145—Traffic control systems for road vehicles indicating individual free spaces in parking areas where the indication depends on the parking areas
- G08G1/146—Traffic control systems for road vehicles indicating individual free spaces in parking areas where the indication depends on the parking areas where the parking area is a limited parking space, e.g. parking garage, restricted space
Definitions
- the present invention relates to an information processing device, a program, and a positioning method.
- a method of receiving a global positioning satellite system signal (hereinafter referred to as a GNSS (Global Navigation Satellite System) signal) from a positioning satellite to acquire position information of a mobile object.
- GNSS Global Navigation Satellite System
- RTK-GNSS Real Time Kinematic-GNSS
- the positional information acquired by the mobile object from the GNSS signal is corrected using the reference point on the ground positioned with high positional accuracy.
- the RTK-GNSS positioning method has centimeter accuracy.
- Patent Document 1 describes this type of technology.
- the present invention was made to solve the above problems, and its purpose is to accurately identify the position of a mobile object such as an automobile.
- an information processing apparatus includes a reference position acquisition unit that acquires reference position information indicating the position of an imaging device, first position information indicating the current position; and second position information indicating the current position of a moving object moving around the imaging device based on a satellite positioning signal synchronized in time with the positioning signal of the first position information.
- a position estimation unit that acquires relative position information indicating the positional relationship between the imaging device and the moving object based on , and outputs moving object position information indicating the current position of the moving object based on the relative position information and the reference position information; , provided.
- the present invention it is possible to accurately identify the position of a mobile object such as an automobile. For example, in a situation where an imaging device such as a surveillance camera is installed, the position of a mobile object such as an automobile can be accurately specified using the reference position information of the imaging device.
- FIG. 1 is a schematic diagram showing an imaging device, a mobile object, a server, and a positioning satellite according to one embodiment of the present invention
- FIG. 1 is a block diagram showing the hardware configuration of an information processing apparatus according to one embodiment of the present invention
- FIG. 1 is a block diagram showing functional configurations of an imaging device, a server, and a moving body according to an embodiment of the present invention
- FIG. It is a plane schematic diagram which shows the relationship between the imaging device which concerns on one Embodiment of anti-invention, and a moving body.
- FIG. 5 is a diagram showing an example of an image obtained by superimposing position information on an image captured by an imaging device according to an embodiment of the present invention
- FIG. 5 is a diagram showing an example of an image obtained by superimposing position information on an image captured by an imaging device according to an embodiment of the present invention
- FIG. 5 is a diagram showing a flow of processing for identifying position information and associating image information with the position information according to the embodiment of the present invention
- 1 is a block diagram showing the functional configurations of an imaging device, a server, and a moving body according to an embodiment of the present invention, and in particular, a diagram showing an example in which an information processing function other than an information recording unit is incorporated into the imaging device
- FIG. 1 is a block diagram showing functional configurations of an imaging device, a server, and a moving object according to an embodiment of the present invention, and in particular, a diagram showing an example in which an image information management section is arranged in the imaging device
- FIG. 1 is a block diagram showing the functional configurations of an imaging device, a server, and a moving object according to an embodiment of the present invention, and in particular, a diagram showing an example in which an information processing function is mainly incorporated into the moving object;
- FIG. 1 is a block diagram showing the functional configurations of an imaging device, a server, and a mobile body according to an embodiment of the present invention, and in particular, a diagram showing an example in which information processing functions are separately incorporated in the imaging device, the server, and the mobile body. .
- the information processing apparatus 10 of the present embodiment exchanges electronic information between the imaging device 2 and the moving body 3 moving around the imaging device 2, for example.
- the information processing device 10 has an information processing device communication device 19, the imaging device 2 has an imaging device communication device 29, and the moving body 3 has a moving body communication device 39, respectively.
- Electronic information is exchanged mainly through the communication line 121 .
- communication line 121 is wireless communication.
- the communication line 121 is not limited to wireless communication.
- the communication line 121 may use wired communication.
- Reference position information 200, first position information 210, and second position information 310 are obtained as position information.
- the reference position information 200 is position information obtained by accurately measuring the position of the imaging device 2 .
- the first position information 210 is position information of the current position measured by GNSS representing the position of the imaging device 2 , and the position accuracy of the first position information alone is lower than that of the reference position information 200 .
- the second position information 310 is the position information of the current position measured by GNSS representing the position of the moving body 3 , and the position accuracy of the second position information alone is lower than that of the reference position information 200 .
- the first position information 210 and the second position information 310 are acquired based on positioning signals of satellites synchronized in time.
- the synchronization of the times does not only mean that the times are completely matched. It is the time that associates the acquisition time of the first location information and the acquisition time of the second location information. More specifically, the difference in acquisition time is within the difference in time that can offset the GNSS radio wave reception status at the acquisition time of the first location information and the GNSS radio wave reception status at the acquisition time of the second location information. Examples include:
- the reference position information 200 of the imaging device 2 is obtained by the reference position antenna 20 receiving the positioning signal from the reference position satellite 41 .
- a reference position satellite positioning signal reception unit 401 receives an electrical signal from the reference position antenna 20, and a reference position positioning calculation unit 402 (not shown in FIG. 1) calculates and derives the reference position information 200. do.
- the first position information 210 of the imaging device 2 is obtained when the first positioning antenna 21 of the imaging device 2 receives positioning signals from the first positioning satellites 42 .
- a first positioning satellite positioning signal receiving unit 403 (not shown in FIG. 1) receives an electrical signal from the first positioning antenna 21, and a first positioning calculation unit 404 (not shown) calculates first position information. and derive
- the moving body 3 has a second position antenna 31.
- the second positioning antenna 31 receives positioning signals from the second positioning satellite 43 .
- a second positioning satellite positioning signal receiving unit 405 (not shown) receives the electrical signal from the second positioning antenna 31, and a second positioning calculation unit 406 (not shown) calculates the second position information 310. derive
- the first positioning satellite 42 and the second positioning satellite 43 require four satellites to calculate the position coordinates. The reason is that position coordinates and time are variables.
- FIG. 1 shows an example in which five satellites are applied as the first positioning satellites 42, five satellites are applied as the second positioning satellites 43, and four satellites among them are common.
- the information processing device 10 identifies the position of the moving body 3 based on the reference position information 200, the first position information 210, and the second position information 310.
- the information processing apparatus 10 includes a processor 13, a ROM (Read Only Memory) 14, a RAM (Random Access Memory) 15, an input/output unit 11, a communication unit 12, and an input/output interface 17. and
- the processor 13 performs various calculations and processes.
- the processor 13 includes, for example, a CPU (central processing unit), MPU (micro processing unit), SoC (system on a chip), DSP (digital signal processor), GPU (graphics processing unit), ASIC (application technology), Examples include PLD (programmable logic device) or FPGA (field-programmable gate array).
- processor 13 is a combination of several of these.
- the processor 13 may be a combination of these with a hardware accelerator or the like.
- the processor 13 , ROM 14 and RAM 15 are interconnected via a bus 16 .
- the processor 13 executes various processes according to programs recorded in the ROM 14 or programs loaded in the RAM 15 . Part or all of the program may be incorporated within the circuitry of processor 13 .
- the bus 16 is also connected to the input/output interface 17 .
- the input/output unit 11 and the communication unit 12 are connected to the input/output interface 17 .
- the input/output unit 11 is electrically connected to the input/output interface 17 by wire or wirelessly.
- the input/output unit 11 includes, for example, an input unit such as a keyboard and a mouse, and an output unit such as a display for displaying images and a speaker for amplifying sounds. Note that the input/output unit 11 may have a configuration in which the display function and the input function are integrated like a touch panel.
- the communication unit 12 is a device in which the processor 13 communicates with other devices (for example, the imaging device 2 and the mobile object 3) via the communication line 121.
- the hardware configuration shown here is just an example, and it is not particularly limited to this configuration.
- these various processors are combined with processing circuits such as ASIC (Application Specific Integrated Circuit) and FPGA (Field-Programmable Gate Array). may be employed as a processor to realize the functional configuration.
- ASIC Application Specific Integrated Circuit
- FPGA Field-Programmable Gate Array
- FIG. 3 shows the functional configuration of the information processing device 10 of the present embodiment, and the imaging device 2, mobile object 3, etc. with which the information processing device 10 exchanges signals.
- a functional configuration of the information processing device 10 is implemented by the processor 13 .
- the functional configuration of the imaging device 2 is realized by electronic components mounted on the imaging device 2 and a processor of an information processing device such as a computer.
- the functional configuration of the mobile body 3 is realized by an information processing device such as an electronic component computer mounted on the mobile body 3 .
- the information processing device 10 here is separate from the imaging device 2 and the mobile object 3, and the server 1 includes all of the functional configurations. Although the details will be described later, the information processing apparatus 10 can also be configured such that a part thereof is incorporated in the imaging device 2 and the moving body 3 . These functional elements will now be described with appropriate reference to FIGS.
- the reference position satellite positioning signal reception unit 401 receives satellite signals to position the reference position of the imaging device 2 .
- the reference position positioning calculator 402 receives the signal from the reference position satellite positioning signal receiver 401 and calculates the reference position of the imaging device 2 .
- the reference position satellite 41 for example, a satellite that provides an accurate position such as a quasi-zenith satellite is selected, and an accurate position is provided as the reference position.
- the reference position antenna 20 for receiving radio waves from the reference position satellite 41 is generally relatively large, and it is preferable that the reference position antenna 20 be removed after the position is measured. It is preferable that the measurement device including the reference position antenna 20 and the reference position acquisition unit 103 is detachably connected to the imaging device 2 . Accordingly, after the reference position is measured, the reference position antenna 20 and the reference position acquisition unit 103 can be removed from the imaging device 2 .
- the installation position of the imaging device 2 may be plotted on a map and the position coordinates may be specified from the map.
- the position of the imaging device 2 is derived by a positioning system similar to the positioning system that the mobile body 3 can have, in addition to the positioning based on the reference position satellite 41 described above.
- the current position of imaging device 2 is referred to herein as the first position.
- a system similar to the positioning system that the moving body 3 can be equipped with has a first positioning antenna 21 , a first positioning satellite positioning signal receiving section 403 and a first positioning calculation section 404 .
- the first positioning satellite positioning signal receiving unit 403 receives the positioning signal from the first positioning antenna 21
- the first positioning calculation unit 404 calculates the first position of the imaging device 2 .
- the first positioning satellite positioning signal receiving unit 403 and the first positioning calculation unit 404 are preferably provided in the imaging device 2 .
- the reference position of the imaging device 2 may be obtained by long-term positioning or static positioning using the first positioning antenna 21, the first positioning satellite positioning signal receiving unit 403, and the first positioning calculation unit 404.
- the image capturing device 2 has an image capturing unit 201, and captures, for example, the moving body 3 moving in the parking lot.
- the information processing apparatus 10 includes an image information management unit 101, an information recording unit 102, a reference position acquisition unit 103, a first position information acquisition unit 104, a relative position information acquisition unit 105, a position estimation unit 106, and a second position information acquisition unit 107.
- the moving body 3 is, for example, an automobile moving in a parking lot.
- the current position of the mobile 3 is referred to herein as the second position.
- the moving body 3 has a second positioning antenna 31, and further, as shown in FIG. It has an estimated position acquisition unit 301 .
- the second positioning satellite positioning signal receiving unit 405 receives the positioning signal from the second positioning antenna 31, and the second positioning calculation unit 406 calculates the second position.
- the estimated position acquisition unit 301 acquires an estimated position, which will be described later, from the position estimation unit 106 of the information processing device 10 .
- the reference position acquisition unit 103 acquires the reference position calculated by the reference position positioning calculation unit 402 .
- the first location information acquisition unit 104 acquires the first location information 210 calculated and derived by the first positioning calculation unit 404 .
- the second location information acquisition unit 107 acquires the second location information 310 derived by the second positioning calculation unit 406 of the moving object 3 .
- the relative position information acquisition unit 105 calculates the relative position between the first position of the imaging device 2 and the second position of the moving body 3. to derive
- the first positioning satellite positioning signal receiving section 403 and the second positioning satellite positioning signal receiving section 405 use the same satellite for measurement.
- the relative positional relationship between the two points is obtained by measuring the time difference between the radio signals from the satellites arriving at the respective receivers.
- Each observation point receives radio waves from the same satellite, and the radio waves emitted from the satellite pass through similar weather conditions. This eliminates satellite position errors and delays in the troposphere and ionosphere. This provides an accurate relative position.
- the first location information 210 and the second location information 310 are derived based on positioning signals from satellites. Then, the difference between these positions or the distance indicating the difference is acquired as the relative position information 230 . By adding this relative position information 230 to the reference position information 200, the position of the moving body 3 is estimated.
- the position estimation unit 106 obtains the reference position from the reference position acquisition unit 103 and the relative position from the relative position information acquisition unit 105 . Then, by adding the relative position to the reference position, the accurate position of the moving body 3 is derived. The position of the mobile object 3 derived by the position estimation unit 106 is sent to the estimated position acquisition unit 301 and the image information management unit 101 .
- the image information management unit 101 receives the reference position from the reference position acquisition unit 103, the image from the imaging unit 201 of the imaging device 2, and the estimated position of the moving object 3 from the position estimation unit 106, respectively. Then, the reference position information 200 is added to the captured image 240 captured by the imaging device 2, or the moving body position information is added to the image including the moving body 3. FIG. This information is then recorded in the information recording unit 102 .
- FIG. 4 is a plan view of the moving body 3 moving in the parking lot and the imaging device 2.
- FIG. FIG. 5 is an example of a captured image 240 captured by the imaging device 2 .
- the latitude, longitude, and altitude, which are the reference positions of the imaging device 2 are assigned to the screen.
- Fig. 6 shows the flow of processing according to the functional configuration.
- the information processing device 10 acquires the reference position information 200 (step S401).
- the imaging device 2 acquires image information (step S402).
- the imaging device 2 acquires the first position information 210 of the imaging device 2 (step S403).
- the moving body 3 acquires the second position information 310, which is the position information of the moving body 3 (step S404).
- the relative position information 230 between the imaging device 2 and the moving body 3 is derived (step S405).
- the position of the moving body 3 is estimated or the estimated position information 320 of the moving body 3 is derived (step S406).
- the image information is associated with the estimated position information 320 and/or the reference position information 200 of the moving body 3 (step S407), and the information is recorded (step S408).
- the estimated position information 320 is transmitted to the moving body 3 (step S409). If the moving object 3 is to be tracked continuously, the process returns to step S402. If not, the process ends (END).
- the reference position information 200 is acquired prior to the first position information 210 of the imaging device 2 .
- the order is not limited to this, and the order can be changed.
- the reference position information 200 can be acquired after the relative position information 230 between the imaging device 2 and the mobile object 3 is acquired.
- the information processing device 10 is independently incorporated in the server 1.
- the information processing device 10 is not limited to this, and the entirety of the information processing device 10 can be incorporated in the imaging device 2 or the moving body 3 .
- the imaging device 2 and the moving body 3 may be connected by a communication line 121, for example WiFi. benefits arise.
- the communication line 121 with the information processing apparatus 10 becomes poorly connected due to bad weather or the like because the mobile body 3 has a calculation operation function and is closed. It is possible to prevent the occurrence of a situation in which the position of the moving body 3 cannot be specified.
- FIG. 7 shows an example in which only the information recording unit 102 of the functional configuration constituting the information processing device 10 is incorporated in the server 1 and the other portions are incorporated in the imaging device 2 .
- the imaging device 2 includes an imaging device communication device 29 that acquires the second position information 310 from the outside through the communication line 121, and together with the information processing function, constitutes a video system.
- FIG. 8 shows an example in which the image information management unit 101 is incorporated in the imaging device 2 among the functional configurations that constitute the information processing device 10 .
- the imaging device 2 is a device that handles video, and generally has a central processing unit (hereinafter referred to as an image engine as appropriate) that specializes in video processing.
- an image engine a central processing unit
- a video file and an information file containing data such as position information and orientation information are saved as separate files, and whether or not to superimpose information based on the information file on the video is arbitrarily selected during playback.
- the image engine manage the image information, that is, to add characters of position information to the video, superimpose the video, and the like. It has the advantage that it is not necessary to prepare an image engine on the server 1 .
- FIG. 9 shows an example in which the image information management unit 101 and the information recording unit 102 are incorporated in the server 1, and other functional configurations of the information processing device 10 are incorporated in the mobile body 3.
- the moving object 3 has the information processing device 10 and acquires the first position information 210 from the imaging device 2 which is external via the communication line 121 .
- a video file and an information file containing data such as position information and orientation information are saved as separate files, and whether or not to superimpose information on the video is arbitrarily selected during playback. If overlaying information on the video is chosen, combining the images and writing text onto the images requires an image engine, which may require a high performance central processing unit CPU, and generate heat. can be a problem.
- FIG. 10 shows an example in which the position estimation unit 106 is mounted on the mobile object 3.
- FIG. The moving body 3 calculates its own accurate position by itself. Since the relative position information acquisition unit 105 is located in the external server 1, the weight of the aircraft can be reduced. In addition, there is an advantage that it is possible to apply the operation of roughly grasping the position obtained by the second positioning calculation unit 406 and deriving the accurate position by the position estimation unit 106 as necessary. .
- the series of processes described above can be executed by hardware or by software.
- a program that constitutes the software is installed in a computer or the like from a network and a recording medium.
- a recording medium containing such a program is not only composed of removable media distributed separately from the main body of the device in order to provide the program to the borrower, but is also provided to the borrower in a state pre-installed in the main body of the device. It consists of a recording medium, etc.
- Removable media include, for example, magnetic disks (including floppy disks), optical disks, or magneto-optical disks.
- Optical discs are composed of, for example, CD-ROMs (Compact Disk-Read Only Memory), DVDs (Digital Versatile Disks), Blu-ray (registered trademark) Discs (Blu-ray Discs), and the like.
- the magneto-optical disk is composed of an MD (Mini-Disk) or the like.
- the recording medium provided to the borrower in a state of being pre-installed in the device main body is composed of, for example, a program memory and a hard disk in which the program is recorded.
- the information processing device 10, the loan support program, and the loan support method according to the embodiment described above have the following effects.
- the information processing apparatus 10 includes a reference position acquisition unit 103 that acquires reference position information 200 indicating the position of the imaging device 2, and first position information 210 that indicates the current position of the imaging device 2 calculated based on satellite positioning signals. and second position information 310 indicating the current position of the moving object 3 moving around the imaging device 2 based on the positioning signal of the satellite whose time is synchronized with the positioning signal of the first position information 210.
- the position of the moving object 3 such as an automobile can be specified accurately.
- the position estimation unit 106 uses the distance indicating the difference between the current position of the imaging device 2 and the current position of the moving body 3 as the relative position information 230 based on the first position information 210 and the second position information 310. By adding the relative position information 230 to the reference position information 200, the current position of the moving body 3 is estimated.
- the error is eliminated by taking the difference of the position information with the same error. As a result, the position of the moving body 3 can be specified more accurately.
- the information processing device 10 includes an image information management unit 101 that adds reference position information 200 to a captured image 240 captured by the imaging device 2 .
- the position of a mobile object 3 such as an automobile can be accurately identified using the reference position information 200 of the imaging device 2.
- the information processing device 10 includes an image information management unit 101 that adds moving body position information to an image including the moving body 3 captured by the imaging device 2 .
- the position of the moving body 3 can be identified without delay.
- the reference position acquisition unit 103 acquires information measured by a measuring device detachably connected to the imaging device 2 as the reference position information 200.
- a measuring device that provides reference position information 200 often uses a large antenna. By making it detachable and removing it after measuring once, the space saving property of the imaging device 2 can be realized.
- the first location information 210 and the second location information 310 are calculated based on the positioning signals acquired from the same combination of satellites.
- the first location information 210 and the second location information 310 are similarly affected, and taking the difference between them eliminates this influence. As a result, the accuracy of the difference itself is improved, and the accurate position of the moving body 3 can be derived.
- the imaging system includes the information processing device 10 described above, a communication device that acquires the second position information from the outside through communication, and the imaging device 2 .
- the imaging device 2 incorporates the information processing device 10 and can obtain necessary signals, it is possible to derive the position of the moving body 3 in a closed system of only the imaging device 2 .
- the mobile object 3 includes the information processing device 10 and a communication device that acquires the first position information 210 from the outside through communication.
- the program includes a reference position acquisition function for acquiring reference position information 200 indicating the position of the imaging device 2, and a first position information 210 for acquiring first position information 210 indicating the current position of the imaging device 2 calculated based on satellite positioning signals.
- Second positional information 310 indicating the current position of the moving object 3 moving around the imaging device 2 based on the positional information acquisition function and the positioning signal of the satellite whose time is synchronized with the positioning signal of the first positional information 210.
- the position of the moving object 3 such as an automobile can be specified accurately.
- the positioning method includes a reference position obtaining step of obtaining reference position information 200 indicating the position of the imaging device 2, and obtaining first position information 210 indicating the current position of the imaging device 2 calculated based on satellite positioning signals. a first positional information acquisition step; and second positional information indicating the current position of the moving object 3 moving around the imaging device 2 based on the positioning signal of the satellite whose time is synchronized with the positioning signal of the first positional information 210.
- the position of the moving object 3 such as an automobile can be specified accurately.
- the present invention is not limited to the above-described embodiments, and can be modified as appropriate.
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Abstract
Description
Claims (10)
- 撮像装置の位置を示す参照位置情報を取得する参照位置取得部と、
衛星の測位信号に基づいて算出された前記撮像装置の現在位置を示す第1位置情報と、前記第1位置情報の前記測位信号との時刻が同期している衛星の測位信号に基づいて前記撮像装置の周囲を移動する移動体の現在位置を示す第2位置情報と、に基づいて前記撮像装置と前記移動体の位置関係を示す相対位置情報を取得し、該相対位置情報と前記参照位置情報とに基づいて前記移動体の現在位置を示す移動体位置情報を出力する位置推定部と、
を備える情報処理装置。 - 前記位置推定部は、前記第1位置情報と前記第2位置情報に基づいて前記撮像装置の現在位置と前記移動体の現在位置の差分を示す距離を前記相対位置情報として取得し、
前記参照位置情報に前記相対位置情報を加えることにより、前記移動体の現在位置を推定する
請求項1に記載の情報処理装置。 - 前記撮像装置によって撮像される撮像画像に参照位置情報を付与する画像情報管理部を備える請求項1又は2に記載の情報処理装置。
- 前記撮像装置によって撮像される前記移動体を含む画像に前記移動体位置情報を付与する画像情報管理部を備える
請求項1から3の何れか1項に記載の情報処理装置。 - 前記参照位置取得部は、前記撮像装置に着脱可能に接続される測定装置によって測位された情報を前記参照位置情報として取得する
請求項1から4の何れか1項に記載の情報処理装置。 - 同じ衛星の組合せから取得した測位信号に基づいて前記第1位置情報及び前記第2位置情報が算出される
請求項1から5の何れか1項に記載の情報処理装置。 - 請求項1から6の何れか1項に記載の情報処理装置と、
通信を介して前記第2位置情報を外部から取得する通信装置と、
前記撮像装置と、
を備える撮像システム。 - 請求項1から6の何れか1項に記載の情報処理装置と、
通信を介して前記第1位置情報を外部から取得する通信装置と、
を備える移動体。 - 撮像装置の位置を示す参照位置情報を取得する参照位置取得機能と、
衛星の測位信号に基づいて算出された前記撮像装置の現在位置を示す第1位置情報を取得する第1位置情報取得機能と、
前記第1位置情報の前記測位信号と時刻が同期している衛星の測位信号に基づいて前記撮像装置の周囲を移動する移動体の現在位置を示す第2位置情報を取得する第2位置情報取得機能と、
前記第1位置情報と前記第2位置情報に基づいて前記撮像装置と前記移動体の位置関係を示す相対位置情報を取得し、該相対位置情報と前記参照位置情報に基づいて前記移動体の現在位置を示す移動体位置情報を出力する位置推定機能と、
を備えるプログラム。 - 撮像装置の位置を示す参照位置情報を取得する参照位置取得ステップと、
衛星の測位信号に基づいて算出された前記撮像装置の現在位置を示す第1位置情報を取得する第1位置情報取得ステップと、
前記第1位置情報の前記測位信号と時刻が同期している衛星の測位信号に基づいて前記撮像装置の周囲を移動する移動体の現在位置を示す第2位置情報を取得する第2位置情報取得ステップと、
前記第1位置情報と前記第2位置情報に基づいて前記撮像装置と前記移動体の位置関係を示す相対位置情報を取得し、該相対位置情報と前記参照位置情報に基づいて前記移動体の現在位置を示す移動体位置情報を出力する位置推定ステップと、
を備える測位方法。
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