KR101862013B1 - Handheld measurement device and computer program stored on computer-readable medium - Google Patents
Handheld measurement device and computer program stored on computer-readable medium Download PDFInfo
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- KR101862013B1 KR101862013B1 KR1020150154185A KR20150154185A KR101862013B1 KR 101862013 B1 KR101862013 B1 KR 101862013B1 KR 1020150154185 A KR1020150154185 A KR 1020150154185A KR 20150154185 A KR20150154185 A KR 20150154185A KR 101862013 B1 KR101862013 B1 KR 101862013B1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
- G01B11/022—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness by means of tv-camera scanning
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/14—Measuring arrangements characterised by the use of optical techniques for measuring distance or clearance between spaced objects or spaced apertures
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B17/00—Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations
-
- 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
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
- G01S15/06—Systems determining the position data of a target
- G01S15/08—Systems for measuring distance only
-
- 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
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
- G01S17/06—Systems determining position data of a target
- G01S17/08—Systems determining position data of a target for measuring distance only
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/60—Analysis of geometric attributes
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Electromagnetism (AREA)
- Geometry (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Theoretical Computer Science (AREA)
- Acoustics & Sound (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
A handheld measuring device is disclosed in accordance with an embodiment of the present invention. The handheld measuring apparatus includes a camera for photographing an object to be measured, a distance measuring unit for measuring a distance between the object and the camera, a distance measuring unit for measuring a distance between the object and the camera, A control unit for determining a grid pattern representing an actual size of the region and outputting the image of the measurement target and the grid pattern, and a display for outputting the image of the measurement target and the grid pattern.
Description
The present invention is for checking the size of an object to be measured, more specifically, for checking the size of an object to be measured using a camera.
Optical inspection is performed to inspect the defective article in the manufacturing process of the article. Optical inspection refers to a method of inspecting defective assemblies of products, dimensional defects, etc. through image processing by an optical device such as a camera, or inspecting defective items by a manufacturer by inspecting the defective items with an enlarged device.
However, in the case of producing a small quantity of a plurality of products as in the present example, since the product to be inspected is frequently changed, it is necessary to change the equipment for performing the optical inspection automatically, so that the automatic optical inspection may be ineffective.
In addition, when the manufacturer inspects the goods and inspects the goods for defects, the inspector may need other measuring equipment such as a self-inspection device to inspect the defect of the product, etc. This may deteriorate the inspecting efficiency of the inspector have.
Therefore, there is a need in the art for optical inspection equipment to solve the problems of such conventional inspection equipment.
Korean Patent Laid-Open Publication No. 10-2015-0023205 (May 05, 2015) discloses an automatic inspection apparatus.
The present invention is devised in correspondence with the background art described above, and is intended to provide an optical inspection apparatus for inspecting defective articles in a manufacturing process.
An object of the present invention is to provide an inspection apparatus which can inspect defects of various products without changing the inspection equipment.
The present invention is intended to provide an inspection apparatus that enables inspection of defects in various products without any other apparatus for measuring the dimensions.
A handheld measuring apparatus according to an embodiment of the present invention for realizing the above-described problems is disclosed. The handheld measuring apparatus includes a camera for photographing an object to be measured, a distance measuring unit for measuring a distance between the object and the camera, a distance measuring unit for measuring a distance between the object and the camera, A control unit for determining a grid pattern representing an actual size of the region and outputting the image of the measurement target and the grid pattern, and a display for outputting the image of the measurement target and the grid pattern.
Alternatively, the distance measuring unit may include at least one of an ultrasonic sensor and an optical sensor, and may measure a distance between the measurement object and the camera based on the measurement value of the sensor.
Alternatively, the distance measuring unit may include a distance measuring camera, wherein the distance measuring unit measures a distance between the camera and the distance measuring camera based on at least one of an overlapping area of the shooting area of each of the camera and the distance measuring camera, The distance between the object to be measured and the camera can be measured.
Alternatively, the apparatus further comprises a user input for receiving an input specifying from the user of the hand held measurement device any two or more points of the image of the measurement object displayed on the display, Lt; RTI ID = 0.0 > a < / RTI >
Alternatively, the user input of the hand held measurement device may alternatively comprise a touch screen disposed on the display.
Alternatively, the handheld measuring apparatus may further include a memory for storing the image of the measurement object, the distance information between the measurement object and the camera, and the grid pattern.
Alternatively, the handheld measuring device may change the angle of view information of the camera to correspond to the magnification of the camera when the magnification of the camera is adjusted, and change the angle of view of the camera A grid pattern indicating an actual size of an arbitrary region of the measurement object can be determined based on the grid pattern.
Alternatively, the handheld measuring device may be based on the measured distance H and an angle? Between the line S connecting the camera to any point on the image of the measurement object and the measured distance, (L) between the center point of the image of the measurement object and the arbitrary point is expressed by the following equation
Alternatively, the grid pattern may be output as a preview during shooting of the image of the measurement object, or may be output to the image of the measurement object stored.
Also disclosed is a computer program stored on a computer-readable medium, comprising a plurality of instructions executed by one or more processors in accordance with an embodiment of the present invention. The computer program stored in the computer-readable medium may further include instructions for causing the camera to take a measurement target, a command for measuring a distance between the measurement target and the camera, a measurement distance based on the measured distance, To determine a grid pattern indicative of an actual size of an arbitrary region of the measurement target, and an instruction to cause the display to output an image of the measurement target and an interstitial pattern.
The present invention can provide an optical inspection apparatus for inspecting defective articles in a manufacturing process.
The present invention can provide an inspection apparatus which can inspect defects of various products without changing the inspection equipment.
The present invention can provide an inspection apparatus that can inspect defects of various products without any other apparatus for measuring the dimensions.
1 is a block diagram of a handheld measuring device according to an embodiment of the present invention.
FIG. 2 is an exemplary view illustrating a measurement target of a handheld measurement apparatus according to an embodiment of the present invention. FIG.
3A is an exemplary view illustrating an image displayed on a handheld measuring device according to an embodiment of the present invention.
FIG. 3B is an exemplary view illustrating an image displayed on the handheld measuring apparatus according to an exemplary embodiment of the present invention and an actual distance between two arbitrary points of the measurement object. FIG.
4 is a flowchart of a method of measuring an object to be measured performed in a handheld measuring device according to an embodiment of the present invention.
Various embodiments are now described with reference to the drawings, wherein like reference numerals are used throughout the drawings to refer to like elements. In this specification, various explanations are given in order to provide an understanding of the present invention. It will be apparent, however, that such embodiments may be practiced without these specific details. In other instances, well-known structures and devices are provided in block diagram form in order to facilitate describing the embodiments.
The terms " component, " " module, " system, " and the like, as used herein, refer to a computer-related entity, hardware, firmware, software, combination of software and hardware, or execution of software. For example, a component may be, but is not limited to, a process executing on a processor, a processor, an object, an executing thread, a program, and / or a computer. For example, both an application running on a computing device and a computing device may be a component. One or more components may reside within a processor and / or thread of execution, one component may be localized within one computer, or it may be distributed between two or more computers. Further, such components may execute from various computer readable media having various data structures stored therein. The components may be, for example, a signal (e.g., a local system, data from one component interacting with another component in a distributed system, and / or data over a network, such as the Internet, Lt; RTI ID = 0.0 > and / or < / RTI >
The description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features presented herein.
1 is a block diagram of a handheld measuring device according to an embodiment of the present invention.
The
The
The
The
The
The
For example, when the
The
When the magnification of the
The
In addition, if the
A more detailed method of calculating the distance from the
The various embodiments described herein may be embodied in a recording medium readable by a computer or similar device using, for example, software, hardware, or a combination thereof.
According to a hardware implementation, the embodiments described herein may be implemented as application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays May be implemented using at least one of a processor, controllers, micro-controllers, microprocessors, and other electronic units for performing other functions. In some cases, The embodiments described may be implemented by the
According to a software implementation, embodiments such as the procedures and functions described herein may be implemented with separate software modules. Each of the software modules may perform one or more of the functions and operations described herein. Software code can be implemented in a software application written in a suitable programming language. The software code is stored in the
The
Some of these displays may be transparent or light transmissive so that they can be seen through. This can be referred to as a transparent display, and a typical example of the transparent display is TOLED (Transparent OLED) and the like. There may be more than one
The
The
The
The
Further, although not shown, the
FIG. 2 is an exemplary view illustrating a measurement target of a handheld measurement apparatus according to an embodiment of the present invention. FIG.
The
When the magnification of the
The
3A is an exemplary view illustrating an image displayed on a handheld measuring device according to an embodiment of the present invention.
The
When the ratio of the
Therefore, the
FIG. 3B is an exemplary view illustrating an image displayed on the handheld measuring apparatus according to an exemplary embodiment of the present invention and an actual distance between two arbitrary points of the measurement object. FIG.
The
The
Therefore, the
4 is a flowchart of a method of measuring an object to be measured performed in a handheld measuring device according to an embodiment of the present invention.
The
The
The
The
The
The
Some of these displays may be transparent or light transmissive so that they can be seen through. This can be referred to as a transparent display, and a typical example of the transparent display is TOLED (Transparent OLED) and the like. There may be more than one
Those of ordinary skill in the art will understand that information and signals may be represented using any of a variety of different technologies and techniques. For example, data, instructions, commands, information, signals, bits, symbols, and chips that may be referenced in the above description may include voltages, currents, electromagnetic waves, magnetic fields or particles, Particles or particles, or any combination thereof.
Those skilled in the art will appreciate that the various illustrative logical blocks, modules, processors, means, circuits, and algorithm steps described in connection with the embodiments disclosed herein may be embodied directly in electronic hardware, (Which may be referred to herein as " software ") or a combination of both. To clearly illustrate this interchangeability of hardware and software, various illustrative components, blocks, modules, circuits, and steps have been described above generally in terms of their functionality. Whether such functionality is implemented as hardware or software depends on the design constraints imposed on the particular application and the overall system. Those skilled in the art may implement the described functionality in various ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The various embodiments presented herein may be implemented as a method, apparatus, or article of manufacture using standard programming and / or engineering techniques. The term " article of manufacture " includes a computer program, carrier, or media accessible from any computer-readable device. For example, the computer-readable medium can be a magnetic storage device (e.g., a hard disk, a floppy disk, a magnetic strip, etc.), an optical disk (e.g., CD, DVD, etc.), a smart card, But are not limited to, devices (e. G., EEPROM, cards, sticks, key drives, etc.). The various storage media presented herein also include one or more devices and / or other machine-readable media for storing information. The term "machine-readable medium" includes, but is not limited to, a wireless channel and various other media capable of storing, holding, and / or transferring instruction (s) and / or data.
It will be appreciated that the particular order or hierarchy of steps in the presented processes is an example of exemplary approaches. It will be appreciated that, based on design priorities, certain orders or hierarchies of steps in processes may be rearranged within the scope of the present invention. The appended method claims provide elements of the various steps in a sample order, but are not meant to be limited to the specific order or hierarchy presented.
The description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features presented herein.
Claims (10)
A camera for photographing a measurement target;
And a light receiving unit for measuring at least one of a time and an intensity of light emitted from the light emitting unit and returning from the measurement subject to the measurement object, A distance measuring unit for measuring a distance;
Wherein the measured distance and the angle of view information of the camera, which is the angle of view information, are a maximum angle value formed by a virtual line passing through the center point of the camera and the photographed image and an imaginary line passing through the arbitrary point, Calculating a distance between a center point of the photographed image and an arbitrary point of the measurement target and determining an interval of the grating pattern indicating an actual size of an arbitrary region of the measurement target based on the calculated distance and an actual distance indicated by a space A control unit for causing the display to output the image of the measurement object and the grid pattern;
A display for outputting the image of the measurement object and the grid pattern; And
A user input for receiving an input from a user of the handheld measurement device designating any two or more points for measuring a distance of an image of a measurement object displayed on the display;
, And
In addition,
Calculating an actual distance between any two or more points of the specified image if the user input receives an input for any two or more points,
Handheld measuring device.
A camera for photographing a measurement target;
A distance measuring unit including an ultrasonic sensor and measuring a distance between the object and the camera based on at least one of a time and an intensity of ultrasonic waves emitted from the ultrasonic sensor returning from the object;
Wherein the measured distance and the angle of view information of the camera, which is the angle of view information, are a maximum angle value formed by a virtual line passing through the center point of the camera and the photographed image and an imaginary line passing through the arbitrary point, Calculating a distance between a center point of the photographed image and an arbitrary point of the measurement target and determining an interval of the grating pattern indicating an actual size of an arbitrary region of the measurement target based on the calculated distance and an actual distance indicated by a space A control unit for causing the display to output the image of the measurement object and the grid pattern;
A display for outputting the image of the measurement object and the grid pattern; And
A user input for receiving an input from a user of the handheld measurement device designating any two or more points for measuring a distance of an image of a measurement object displayed on the display;
, And
In addition,
Calculating an actual distance between any two or more points of the specified image if the user input receives an input for any two or more points,
Handheld measuring device.
A camera for photographing a measurement target;
Measuring a distance between the measurement object and the camera based on at least one of an overlapping area of the shooting area of each of the camera and the distance measurement camera and a distance and an angle between the camera and the distance measurement camera, A distance measuring unit;
Wherein the measured distance and the angle of view information of the camera, which is the angle of view information, are a maximum angle value formed by a virtual line passing through the center point of the camera and the photographed image and an imaginary line passing through the arbitrary point, Calculating a distance between a center point of the photographed image and an arbitrary point of the measurement target and determining an interval of the grating pattern indicating an actual size of an arbitrary region of the measurement target based on the calculated distance and an actual distance indicated by a space A control unit for causing the display to output the image of the measurement object and the grid pattern;
A display for outputting the image of the measurement object and the grid pattern; And
A user input for receiving an input from a user of the handheld measurement device designating any two or more points for measuring a distance of an image of a measurement object displayed on the display;
, And
In addition,
Calculating an actual distance between any two or more points of the specified image if the user input receives an input for any two or more points,
Handheld measuring device.
Wherein the user input comprises a touch screen disposed on the display,
Handheld measuring device.
A memory for storing the image of the measurement object, the distance information between the measurement object and the camera, and the grid pattern;
≪ / RTI >
Handheld measuring device.
In addition,
Wherein when the magnification of the camera is adjusted, the angle of view information of the camera is changed corresponding to the magnification of the camera, and the angle of view of the camera is changed based on the distance measured by the distance measuring unit and the angle- Determining the grid pattern representing the actual size,
Handheld measuring device.
Wherein,
And calculating a distance between the center point of the image of the measurement object and the center of the image based on the measured distance H and an angle between the arbitrary point on the image of the measurement object and the line S connecting the camera and the measured distance, The distance (L) between arbitrary points
Equation
Determining the grid pattern based on a distance between a center point of the calculated image of the measurement object and the arbitrary point,
Handheld measuring device.
Wherein the grid pattern is output as a preview during shooting of the image of the measurement object, or is output to an image of the measurement object,
Handheld measuring device.
The computer program comprising:
An instruction to cause the camera to take a measurement target;
Measuring a distance between the object and the camera via at least one of an optical sensor, an ultrasonic sensor, and a distance measuring camera;
Wherein the measured distance and the angle of view information of the camera, which is the angle of view information, are a maximum angle value formed by a virtual line passing through the center point of the camera and the photographed image and an imaginary line passing through the arbitrary point, Calculating a distance between a center point of the photographed image and an arbitrary point of the measurement target and determining an interval of the grating pattern indicating an actual size of an arbitrary region of the measurement target based on the calculated distance and an actual distance indicated by a space ; And
A command to cause the display to output the image of the measurement object and the grid pattern;
And
When receiving an input specifying from the user of the handheld measurement device any two or more points for measuring the distance in the image of the measurement object displayed on the display, the actual distance between any two or more points of the specified image An instruction to calculate;
≪ / RTI >
A computer program stored on a computer-readable medium.
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| KR1020150154185A KR101862013B1 (en) | 2015-11-04 | 2015-11-04 | Handheld measurement device and computer program stored on computer-readable medium |
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| KR1020150154185A KR101862013B1 (en) | 2015-11-04 | 2015-11-04 | Handheld measurement device and computer program stored on computer-readable medium |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100649674B1 (en) * | 2005-11-28 | 2006-11-27 | 한국전자통신연구원 | Method for recognizing position using a built-in camera and apparatus thereof |
| KR100955386B1 (en) * | 2009-08-20 | 2010-04-29 | 김대성 | Apparatus for measuring the distance in golf course and method for measuring the distance using the same |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100649674B1 (en) * | 2005-11-28 | 2006-11-27 | 한국전자통신연구원 | Method for recognizing position using a built-in camera and apparatus thereof |
| KR100955386B1 (en) * | 2009-08-20 | 2010-04-29 | 김대성 | Apparatus for measuring the distance in golf course and method for measuring the distance using the same |
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