CN102457758B - Tool and method for screening and testing sensor components of dual-lens stereo equipment - Google Patents
Tool and method for screening and testing sensor components of dual-lens stereo equipment Download PDFInfo
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- 239000000945 filler Substances 0.000 claims description 28
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Abstract
The invention relates to a tool and a method for screening and testing sensor components of dual-lens stereo equipment. The tool comprises an image acquisition circuit tool and an image analysis system, wherein the image acquisition circuit tool is used for being connected with sensor components to be tested and driving the sensor components to be tested, and outputting a real-time video, and the image analysis system is used for analyzing RGB (Red/Green/Blue) component values of the real-time video, carrying out white-balance matching on the sensor components to be tested according to the RGB component values, and outputting a white-balance matching result. With the adoption of the tool and the method, the white-balance matching for the sensor components can be effectively carried out, two sensor components with minor white-balance difference are obtained to serve as a sensor group which is used for making the dual-lens stereo equipment, the problem that the comfort of human eyes is influenced by larger white-balance difference is solved, and the quality in stereo image pick-up/photographing is improved.
Description
Technical field
The present invention relates to the stereoscopic imaging technology field, more particularly, relate to a kind of sensor cluster filler test tool and method of twin-lens stereoscopic device.
Background technology
The basic principle of twin-lens three-dimensional imaging, be to utilize dual camera, on interval certain level distance, takes.Two images that the level interval parallax is arranged have so just been obtained.After these two images entered respectively in people's right and left eyes, human brain was by two pictures and overlap and form solid.But when people's right and left eyes was observed things, the image that all things present was basically identical, such as color, brightness, contrast etc. in the ordinary course of things.Even physiological difference is arranged, also can in long-term life, by nerve, be adjusted.But with twin-lens simulation human eye, take three-dimensional in, due to the difference of imageing sensor or lens assembly, filter etc., the optical characteristics that causes each sensor cluster to produce has certain difference.
Here to comprise imageing sensor, lens group, filter and some relevant components and parts be the compositions such as fixed screw to said sensor cluster.But importantly three aspects can have influence on the last image characteristics of transducer: imageing sensor, lens group, filter.Most important meeting causes the white balance difference of sensor cluster.
Fact proved, although the difference of white balance can not affect the synthetic of stereopsis, can affect the comfortableness of human eye.Watch for a long time left and right that image and the video of white balance difference are arranged, can cause human eye nervous and tired out.The white balance difference that causes so how to control the difference of transducer group becomes very necessary, and this is also very large benefit for quality of promoting stereo camera shooting/photograph.So, before stereo camera/camera assembling is produced, must carry out white balance to each sensor cluster and select.
Summary of the invention
The technical problem to be solved in the present invention is, for the sensor cluster of existing twin-lens stereoscopic device, has the defect of white balance difference, and a kind of sensor cluster filler test tool and filler test method of twin-lens stereoscopic device is provided.
The technical solution adopted for the present invention to solve the technical problems is: sensor cluster filler test tool and the filler test method of constructing a kind of twin-lens stereoscopic device, by building the image acquisition circuit tool, gather the instant video of sensor cluster output to be measured, by image analysis system, analyze the RGB component value of instant video and carry out the white balance pairing, output pairing result.
According to a first aspect of the invention, provide a kind of sensor cluster filler test tool of twin-lens stereoscopic device, having comprised: the image acquisition circuit tool, for connecting and driving sensor cluster to be measured, export instant video; Image analysis system, be used to analyzing the RGB component value of described instant video, and carry out the white balance pairing according to described RGB component value to sensor cluster to be measured, output white balance pairing result;
Described figure matter comprises as analytical system: video frequency collection card, be used to the rgb pixel data of obtaining described instant video and analyze the RGB component value; Image analysis module, be used to recording the RGB component value of described sensor cluster to be measured, and carry out the white balance pairing according to described RGB component value to sensor cluster to be measured; Display, be used to showing described RGB component value and/or white balance pairing result;
Wherein, described image analysis module is that each sensor cluster to be measured generates numbering, and the side-play amount maximum permissible value is set is+-m, by a value, be (R, G, B) and (R+-m, G+-m, B+-m) with interior transducer, match, detect two sensor clusters to be measured of the side-play amount minimum in side-play amount maximum permissible value scope, as the sensor cluster to be measured of pairing.
In the sensor cluster filler test tool of the described twin-lens stereoscopic device of first aspect present invention, described image acquisition circuit tool comprises: sensor interface, be used to connecting sensor cluster to be measured; Video encoder, be used to driving described sensor cluster to be measured, and be converted into the rgb pixel data according to resolution and the image format of the image that arranges by the initial data of instant video; Video output interface, be used to exporting the described rgb pixel data of instant video.
In the sensor cluster filler test tool of the described twin-lens stereoscopic device of first aspect present invention, described video output interface is analog interface or digital interface.
According to a second aspect of the invention, provide a kind of sensor cluster filler test method of twin-lens stereoscopic device, comprised the following steps:
1) by the image acquisition circuit tool, connected and drive sensor cluster to be measured, exporting instant video;
2) by image analysis system, analyzed the RGB component value of described instant video, and according to described RGB component value, sensor cluster to be measured is carried out to the white balance pairing, output pairing result;
Described step 2) further comprise:
21) by video frequency collection card, obtain the rgb pixel data of described instant video and analyze the RGB component value;
22) by image analysis module, recorded the RGB component value of described sensor cluster to be measured, and according to described RGB component value, sensor cluster to be measured is carried out to the white balance pairing;
23) by display, show described RGB component value and/or white balance pairing result;
Wherein, described step 22) in, image analysis module is that each sensor cluster to be measured generates numbering, and the side-play amount maximum permissible value is set is+-m, by a value, be (R, G, B) and (R+-m, G+-m, B+-m) with interior transducer, match, detect two sensor clusters to be measured of the side-play amount minimum in side-play amount maximum permissible value scope, as the sensor cluster to be measured of pairing.
In the sensor cluster filler test method of the described twin-lens stereoscopic device of second aspect present invention, described step 1) further comprise:
11) by sensor interface, connect sensor cluster to be measured;
12) by video encoder, drive described sensor cluster to be measured, and according to resolution and the image format of the image that arranges, the initial data of instant video is converted into to the rgb pixel data;
13) by video output interface, exported the described rgb pixel data of instant video.
In the sensor cluster filler test method of the described twin-lens stereoscopic device of second aspect present invention, described step 13) in, video output interface is analog interface or digital interface.
Implement sensor cluster filler test tool and the filler test method of twin-lens stereoscopic device of the present invention, have following beneficial effect:
By filler test tool of the present invention and filler test method, can effectively to sensor cluster, carry out the white balance pairing, obtain two sensor clusters that white balance difference is less and prepare the twin-lens stereoscopic device as the transducer group, solve the differ greatly problem of the comfortableness that affects human eye of white balance, also promoted the quality of stereo camera shooting/photograph.
The accompanying drawing explanation
The invention will be further described below in conjunction with drawings and Examples, in accompanying drawing:
Fig. 1 is the module diagram of the sensor cluster filler test tool of twin-lens stereoscopic device in the preferred embodiment of the present invention;
Fig. 2 is that the sensor cluster RGB of preferred embodiment of the present invention output divides spirogram;
Fig. 3 is the white balance pairing result of the sensor cluster of preferred embodiment of the present invention output;
Fig. 4 is the unpaired sensor cluster of residue of preferred embodiment of the present invention output.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.
Refer to Fig. 1, be the module diagram of the sensor cluster filler test tool of twin-lens stereoscopic device in the preferred embodiment of the present invention.As shown in Figure 1, filler test tool provided by the invention comprises image acquisition circuit tool 100 and image analysis system 200.
Wherein, image acquisition circuit tool 100, for connecting and driving sensor cluster to be measured, is exported instant video.Image analysis system 200 is for to analyzing the RGB component value of described instant video, and according to described RGB component value, sensor cluster to be measured carried out to the white balance pairing, output white balance pairing result.
As shown in Figure 1, image acquisition circuit tool 100 comprises three parts: sensor interface 110, video encoder 120 and video output interface 130.
Sensor interface 110 is for connecting the sensor cluster to be measured 300 that will test.Video encoder 120 is exactly the video camera or the camera mainboard that there is no transducer in fact, for driving described testing image transducer 300, and resolution and the image format of image be set as requested, and the initial data of instant video is converted into to the rgb pixel data, then by video output interface 130, export the described rgb pixel data of instant video.Sensor cluster 300 is connected on the sensor interface 110 of image acquisition circuit tool 100 by line.And make sensor cluster 300 over against test pattern 400 and keep fixing distance, coordinating simultaneously the DC light source of firm power, instant view data enters into video encoder 120 by sensor interface 110.This video encoder 120 is fixed on 0DB by the AE value of sensor cluster, but do not carry out Automatic white balance state (automatic white balance, AWB), and enter the video tour state of specified format, the image that allows the instant output transducer assembly 300 of video output interface 130 obtain.Video output interface 130 can have varied, simulation, numeral can, but in a collection of sensor cluster test process, must keep the consistency of interface, must not change sensor setting, video output formats and interface midway.
Image analysis system 200 comprises video frequency collection card 210, image analysis module 220 and display 230.Wherein, video frequency collection card 210 is be used to the rgb pixel data of obtaining described instant video and analyze the RGB component value.Image analysis module 220 is be used to recording the RGB component value of described sensor cluster to be measured, and according to described RGB component value, sensor cluster to be measured carried out to the white balance pairing.Display 230 is be used to showing described RGB component value and/or white balance pairing result.The present invention adopts computer system to analyze the video data of sensor cluster.Computer system has contained video frequency collection card 210, image analysis module 220 and display 230 as image analysis system.Video frequency collection card 210 is come in the video input of image acquisition circuit tool collection by video interface, and analyzes the absolute value of tri-components of RGB of this video.Tri-component values of RGB show according to certain form.In image analysis module 220, by analysis software, automatically record the RGB component value of each sensor cluster to be measured, and generate numbering.The side-play amount maximum permissible value is set in application program, suppose maximum permissible value be+-m, by a value, be (R so, G, B) and (R+-m, G+-m, B+-m) with interior transducer, match, certainly side-play amount, take minimum as good, detects two sensor clusters to be measured of the side-play amount minimum in side-play amount maximum permissible value scope, as the sensor cluster to be measured of pairing.After the transducer that tests some, by display 230 output RGB tables of data and white balance matching tables.The engineer just can put together the sensor cluster of correspondence according to the white balance matching table subsequently, waits for next step assembling.After the white balance pairing, the characteristic of stereo lens group is more consistent, when the later stage is carried out the white balance processing, also will be more prone to, and picture quality is also more secure.
The corresponding a kind of sensor cluster filler test method that twin-lens stereoscopic device is provided of the present invention comprises the following steps:
At first, in step 1) in, by above-mentioned image acquisition circuit tool, connect and drive sensor cluster to be measured, export instant video.
Subsequently in step 2) in, by above-mentioned image analysis system, analyzed the RGB component value of described instant video, and according to described RGB component value, sensor cluster to be measured is carried out to the white balance pairing, output pairing result.
Further, specific implementation process step 1) is as described below:
In step 11) in, by sensor interface, connect sensor cluster to be measured.
In step 12) in, by video encoder, drive described sensor cluster to be measured, and according to resolution and the image format of the image that arranges, the initial data of instant video is converted into to the rgb pixel data.
In step 13) in, by the described rgb pixel data of video output interface output instant video.Video output interface can be analog interface or digital interface.
Further, specific implementation process step 2) is as described below:
In step 21) in, by video frequency collection card, obtain the rgb pixel data of described instant video and analyze the RGB component value.
In step 22) in, by image analysis module, recorded the RGB component value of described sensor cluster to be measured, and according to described RGB component value, sensor cluster to be measured is carried out to the white balance pairing.Image analysis module is that each sensor cluster to be measured generates numbering, and the side-play amount maximum permissible value is set, and detects two sensor clusters to be measured of the side-play amount minimum in side-play amount maximum permissible value scope, as the sensor cluster to be measured of pairing.
In step 23) in, by display, show described RGB component value and/or white balance pairing result.
Refer to Fig. 2 to Fig. 4, wherein, Fig. 2 is the sensor cluster RGB subscale of preferred embodiment of the present invention output; Fig. 3 is the white balance pairing result of the sensor cluster of preferred embodiment of the present invention output; Fig. 4 is the unpaired sensor cluster of residue of preferred embodiment of the present invention output.As shown in Figure 2, the sensor cluster RGB subscale of output can comprise the information such as the numbering of each sensor cluster to be measured and component value, can by notepad or other intuitively form be shown to the engineer.In Fig. 3, after having exported image analysis module 220 and mating by analysis, two sensor clusters of deviation minimum are matched, successfully exported the pairing result of the sensor cluster of 8 dialogue balance difference minimums.In Fig. 4, demonstrated the unpaired sensor cluster of residue, the data of these sensor clusters can be retained in system, so that analyze together pairing with the next batch sensor cluster.
In sum, by filler test tool of the present invention and filler test method, can effectively to sensor cluster, carry out the white balance pairing, obtain two sensor clusters that white balance difference is less and prepare the twin-lens stereoscopic device as the transducer group, solve the differ greatly problem of the comfortableness that affects human eye of white balance, also promoted the quality of stereo camera shooting/photograph.
The present invention is described according to specific embodiment, but it will be understood by those skilled in the art that when not breaking away from the scope of the invention, can carry out various variations and be equal to replacement.In addition, for adapting to specific occasion or the material of the technology of the present invention, can carry out many modifications and not break away from its protection range the present invention.Therefore, the present invention is not limited to specific embodiment disclosed herein and comprises that all drop into the embodiment of claim protection range.
Claims (6)
1. the sensor cluster filler test tool of a twin-lens stereoscopic device, is characterized in that, comprising:
The image acquisition circuit tool, for connecting and driving sensor cluster to be measured, export instant video;
Image analysis system, be used to analyzing the RGB component value of described instant video, and carry out the white balance pairing according to described RGB component value to sensor cluster to be measured, output white balance pairing result;
Described image analysis system comprises:
Video frequency collection card, be used to the rgb pixel data of obtaining described instant video and analyze the RGB component value;
Image analysis module, be used to recording the RGB component value of described sensor cluster to be measured, and carry out the white balance pairing according to described RGB component value to sensor cluster to be measured;
Display, be used to showing described RGB component value and/or white balance pairing result;
Wherein, described image analysis module is that each sensor cluster to be measured generates numbering, and the side-play amount maximum permissible value is set is ± m, by a value, be (R, G, B) and (R ± m, G ± m, B ± m) match with interior transducer, two sensor clusters to be measured of the side-play amount minimum in detection side-play amount maximum permissible value scope, as the sensor cluster to be measured of pairing.
2. the sensor cluster filler test tool of twin-lens stereoscopic device according to claim 1, is characterized in that, described image acquisition circuit tool comprises:
Sensor interface, be used to connecting sensor cluster to be measured;
Video encoder, be used to driving described sensor cluster to be measured, and be converted into the rgb pixel data according to resolution and the image format of the image that arranges by the initial data of instant video;
Video output interface, be used to exporting the described rgb pixel data of instant video.
3. the sensor cluster filler test tool of twin-lens stereoscopic device according to claim 2, is characterized in that, described video output interface is analog interface or digital interface.
4. the sensor cluster filler test method of a twin-lens stereoscopic device, is characterized in that, comprises the following steps:
1) by the image acquisition circuit tool, connected and drive sensor cluster to be measured, exporting instant video;
2) by image analysis system, analyzed the RGB component value of described instant video, and according to described RGB component value, sensor cluster to be measured is carried out to the white balance pairing, output pairing result;
Described step 2) further comprise:
21) by video frequency collection card, obtain the rgb pixel data of described instant video and analyze the RGB component value;
22) by image analysis module, recorded the RGB component value of described sensor cluster to be measured, and according to described RGB component value, sensor cluster to be measured is carried out to the white balance pairing;
23) by display, show described RGB component value and/or white balance pairing result;
Wherein, described step 22) in, image analysis module is that each sensor cluster to be measured generates numbering, and the side-play amount maximum permissible value is set is ± m, by a value, be (R, G, B) and (R ± m, G ± m, B ± m) match with interior transducer, two sensor clusters to be measured of the side-play amount minimum in detection side-play amount maximum permissible value scope, as the sensor cluster to be measured of pairing.
5. the sensor cluster filler test method of twin-lens stereoscopic device according to claim 4, is characterized in that described step 1) further comprise:
11) by sensor interface, connect sensor cluster to be measured;
12) by video encoder, drive described sensor cluster to be measured, and according to resolution and the image format of the image that arranges, the initial data of instant video is converted into to the rgb pixel data;
13) by video output interface, exported the described rgb pixel data of instant video.
6. the sensor cluster filler test method of twin-lens stereoscopic device according to claim 5, is characterized in that described step 13) in video output interface be analog interface or digital interface.
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| JP4218640B2 (en) * | 2002-08-19 | 2009-02-04 | ソニー株式会社 | Image processing apparatus and method, video display apparatus, and recorded information reproducing apparatus |
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