CN103702025A - Anti-shake compensating effect judgment method based on reflective image - Google Patents
Anti-shake compensating effect judgment method based on reflective image Download PDFInfo
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Abstract
The invention provides an anti-shake compensating effect judgment method based on a reflective image, which comprises the following steps of: 1) preparing a reflective photograph object with a black background and white cross lines, putting on a vibrating table, adjusting a camera to an optimum focusing distance, automatically focusing without working, 2) turning off an optical anti-shake function of the camera and the vibrating table, checking thicknesses [X1, Y1] of the cross lines and pixel points [Ax, Ay] in a picture after photographing, 3) turning off the optical anti-shake function of the camera, turning on the vibrating table, checking thicknesses [X2, Y2] of the cross lines and pixel points [Bx, By] in the picture after photographing, 4) turning on the optical anti-shake function of the camera and the vibrating table, checking thicknesses [X3, Y3] of the cross lines and pixel points [Cx, Cy] in the picture after photographing, and 5) calculating a compression ratio of an X-direction anti-shake technology of the camera according to 100-((X3-X1)/(X2-X1))*100, and a compression ratio of a Y-direction anti-shake technology according to 100-((Y3-Y1)/(Y2-Y1))*100. The method provides a definite judgment standard for the anti-shake capability of equipment.
Description
Technical field
The present invention relates to a kind of method of measurement, especially relate to a kind of anti-hand based on reflection-type image and tremble revisal effect determining method.
Background technology
Along with people masses are more and more overcritical to the effect of taking pictures, a lot of technology on mm professional camera special have also applied on mobile phone camera.For example: optics is anti-shake.Optics anti-shake (being called for short OIS) is to rely on the structure of special camera lens or CCD photo-sensitive cell farthest reducing operator in use because shake causes image unstable.As the anti-shake technology of optics, be not to allow fuselage not shake, it is to rely on the structure of special camera lens or CCD photo-sensitive cell farthest reducing operator in use because shake causes image unstable.
Nowadays relatively the anti-shake technology category of main flow has: (1) is by carrying out anti-shake through inner special constructions all.(2) the anti-shake technology of fuselage.(3) improve " naturally anti-shake " technology of ISO value.(4) anti-shake processing of later stage.(5) there is shake induction installation, but do not carry out the anti-shake mode of physical compensation.
But for being day by day tending towards ripe anti-shake technology, do not have the power that a good decision algorithm is determined this technology or anti-shake ability.
Summary of the invention
The invention provides a kind of anti-hand based on reflection-type image and tremble revisal effect determining method, solved the determination methods of anti-shake ability power, the criterion that anti-shake ability is had to a quantification, by utilizing software to realize, judge, further the anti-shudder performance of raising equipment, must evaluate different anti-shake technology so that better.
Anti-hand based on reflection-type image is trembled revisal effect determining method, comprises the following steps:
1) prepare photo-object, the white with black cross hairs that described photo-object is reflection-type, is placed on the device that is provided with camera on vibration machine, and the bat image distance of adjusting camera from, make it at focusing optimum distance, focusing is not worked automatically;
2) close the anti-shake and vibration machine of the optics of camera, after taking pictures, check live width [X1, Y1] and the pixel [Ax, Ay] of white cross hairs in the picture of photo-object;
3) close the optics of camera anti-shake, open vibration machine, after taking pictures, check live width [X2, Y2] and the pixel [Bx, By] of white cross hairs in the picture of photo-object;
4) open the anti-shake and vibration machine of the optics of camera, after taking pictures, check live width [X3, Y3] and the pixel [Cx, Cy] of white cross hairs in the picture of photo-object;
5) the anti-shake technique compresses rate of the directions X of described camera is 100-((X3-X1)/(X2-X1)) x100; The anti-shake technique compresses rate of Y-direction is 100-((Y3-Y1)/(Y2-Y1)) x100.
In step 5), described camera anti-shake technique compresses rate also can be 100-((Y3-Y1)/(Y2-Y1)) x100
The strong and weak Dx of the anti-shake ability of the anti-shake technology of described camera on X number axis is 100-((Cx-Ax)/(Bx-Ax)) * 100.
The strong and weak Dy of the anti-shake ability of the anti-shake technology of described camera on Y number axis is 100-((Cy-Ay)/(By-Ay)) * 100.
Described live width is on the basis of calculating at pixel, to be multiplied by the developed width of each pixel, and the compression ratio calculated value of described anti-shake calculated value and pixel is identical.
Described live width is when confirming, its boundary value is black and white two minutes, is defaulted as the R of image slices vegetarian refreshments, G, and tri-passages of B, have a value to be less than 200 and just this pixel are made as to white.
The present invention is by a kind of determination methods of new anti-shake ability is provided, and for the anti-shake ability of equipment, provides a clear and definite discrimination standard.
Accompanying drawing explanation
Fig. 1 is the picture schematic diagram of described photo-object;
Fig. 2 is the schematic diagram of judgement live width boundary value;
Fig. 3 is step schematic diagram of the present invention.
Embodiment
For judging that anti-hand trembles revisal effect, be below about relevant items such as shooting condition and determinating references, as shown in Figure 1, photo-object is selected the white with black cross hairs of reflection-type, and the bat image distance of camera module is from accommodating to optimum distance, and its automatic focusing is not worked.
Selecting white cross hairs, is that the contrast of white cross hairs is clear and definite, the white and black reason that is easier to judgement.
In when experiment, while noticing that shutter is opened, the portrait in the time of can be to vibration impacts.
Then at the trial, the image of 13M module of take is example, and described 13M refers to product I MX135, represents automatically anti-shake with OIS, OFF is for closing, and ON is for opening, by handset mounting on vibration machine, test, operating procedure as shown in Figure 3, first records the picture of following demand:
1) OIS-OFF, the portrait of vibration machine OFF,
OIS-OFF, takes pictures under vibration machine OFF,
Check the live width [X1, Y1] of white cross hairs,
Check that pixel count [Ax, Ay] is [420,310];
2) OIS-OFF, the portrait of vibration machine ON,
OIS-OFF, takes pictures under vibration machine ON,
Check the live width [X2, Y2] of white cross hairs,
Check that pixel count [Bx, By] is [351,242];
3) OIS-ON, the portrait of vibration machine ON,
OIS-ON, takes pictures under vibration machine ON,
Check the live width [X3, Y3] of white cross hairs,
Check that pixel count [Cx, Cy] is [398,275];
When carrying out the confirmation of live width, must first determine that its boundary value is white or black, be about to image and do black and white two minutes, in this experiment, be defaulted as the R of image slices vegetarian refreshments, G, tri-passages of B have a value to be less than 200 just this pixel to be made as to white, also can to adopt other judgment value, and it assert schematic diagram as shown in Figure 2.
The compression ratio of both direction live width is different, and live width is on the basis of calculating at pixel, to be multiplied by the developed width of each pixel in fact, thus the compression ratio calculated value of its calculated value and pixel to last be the same in fact.
Finally carry out the calculating of compression ratio, the formula of compression ratio is as follows:
100-((live width when Xian Kuan – of OIS-ON is static)/(live width when Xian Kuan – of OIS-OFF is static)) x100=compression ratio _ %
Described live width is on the basis of calculating at pixel, to be multiplied by the developed width of each pixel, and the compression ratio calculated value of described anti-shake calculated value and pixel is identical.
Dx=100 – ((Cx-Ax)/(Bx – Ax)) x100=68.11%
Dy=100–((Cy-Ay)/(By–Ay))x100=51.47%
Dx, Dy represents that respectively the anti-shake ability of this anti-shake technology on different number axis is strong and weak, visible, the compression ratio of both direction is different.If can accomplish absolute anti-shakely, this compression ratio is 100%.
The present invention is by a kind of determination methods of new anti-shake ability is provided, and for the anti-shake ability of equipment, provides a clear and definite discrimination standard.
Claims (6)
1. the anti-hand based on reflection-type image is trembled revisal effect determining method, it is characterized in that, comprises the following steps:
1) prepare photo-object, the white with black cross hairs that described photo-object is reflection-type, is placed on the device that is provided with camera on vibration machine, and the bat image distance of adjusting camera from, make it at focusing optimum distance, focusing is not worked automatically;
2) close the anti-shake and vibration machine of the optics of camera, after taking pictures, check live width [X1, Y1] and the pixel [Ax, Ay] of white cross hairs in the picture of photo-object;
3) close the optics of camera anti-shake, open vibration machine, after taking pictures, check live width [X2, Y2] and the pixel [Bx, By] of white cross hairs in the picture of photo-object;
4) open the anti-shake and vibration machine of the optics of camera, after taking pictures, check live width [X3, Y3] and the pixel [Cx, Cy] of white cross hairs in the picture of photo-object;
5) the anti-shake technique compresses rate of the directions X of described camera is 100-((X3-X1)/(X2-X1)) x100; The anti-shake technique compresses rate of Y-direction is 100-((Y3-Y1)/(Y2-Y1)) x100.
2. the anti-hand based on reflection-type image according to claim 1 is trembled revisal effect determining method, it is characterized in that: the strong and weak Dx of the anti-shake ability of the anti-shake technology of described camera on X number axis is 100-((Cx-Ax)/(Bx-Ax)) * 100.
3. the anti-hand based on reflection-type image according to claim 1 is trembled revisal effect determining method, it is characterized in that: the strong and weak Dy of the anti-shake ability of the anti-shake technology of described camera on Y number axis is 100-((Cy-Ay)/(By-Ay)) * 100.
4. the anti-hand based on reflection-type image according to claim 1 is trembled revisal effect determining method, it is characterized in that: in step 5), described camera anti-shake technique compresses rate also can be 100-((Y3-Y1)/(Y2-Y1)) x100.
5. the anti-hand based on reflection-type image according to claim 1 is trembled revisal effect determining method, it is characterized in that: described live width is when confirming, its boundary value is black and white two minutes, be defaulted as the R of image slices vegetarian refreshments, G, tri-passages of B, have a value to be less than 200 and just this pixel are made as to white.
6. the anti-hand based on reflection-type image according to claim 1 is trembled revisal effect determining method, it is characterized in that: described live width is on the basis of calculating at pixel, to be multiplied by the developed width of each pixel, and the compression ratio calculated value of described anti-shake calculated value and pixel is identical.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104954782A (en) * | 2015-06-08 | 2015-09-30 | 小米科技有限责任公司 | Testing method and device of stabilizing performance of imaging equipment |
| CN105049839A (en) * | 2015-07-13 | 2015-11-11 | 成都西可科技有限公司 | Mobile terminal-based OIS camera module test system and test method |
| CN105163009A (en) * | 2015-08-04 | 2015-12-16 | 南昌欧菲光电技术有限公司 | Picture and method for testing camera module |
| CN105791656A (en) * | 2014-12-19 | 2016-07-20 | 宁波舜宇光电信息有限公司 | Correction system and method of image module optical image stabilizer system |
| CN106559615A (en) * | 2015-09-29 | 2017-04-05 | 宁波舜宇光电信息有限公司 | The calibration equipment of camera module optical anti-vibration system and its bearing calibration |
| CN112351274A (en) * | 2020-11-09 | 2021-02-09 | 重庆市天实精工科技有限公司 | Method and system for detecting anti-shake performance of optical anti-shake camera and storage medium |
| WO2022062163A1 (en) * | 2020-09-28 | 2022-03-31 | 诚瑞光学(深圳)有限公司 | Method for testing optical image stabilization performance of camera driving motor |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008289122A (en) * | 2007-04-19 | 2008-11-27 | Panasonic Corp | Method of evaluating imaged image |
| JP2009211023A (en) * | 2007-04-19 | 2009-09-17 | Panasonic Corp | Method for evaluating camera shake correcting function of imaging device and method for generating camera shake model waveform |
| US20110228102A1 (en) * | 2008-11-28 | 2011-09-22 | Hideyuki Hashi | Shake measurement system, shake measurement method, and imaging device |
| JP2013025267A (en) * | 2011-07-26 | 2013-02-04 | Sony Corp | Evaluation method, camera shake model waveform generation method, and information processor |
| WO2013076963A1 (en) * | 2011-11-22 | 2013-05-30 | パナソニック株式会社 | Measuring method, measuring device, computer program and recording medium |
| WO2013114896A1 (en) * | 2012-02-03 | 2013-08-08 | パナソニック株式会社 | Evaluation method, evaluation device, computer program, and recording medium |
| US8514289B2 (en) * | 2009-11-20 | 2013-08-20 | Samsung Electronics Co., Ltd. | Method and apparatus for estimating point spread function |
-
2013
- 2013-12-04 CN CN201310651929.6A patent/CN103702025A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008289122A (en) * | 2007-04-19 | 2008-11-27 | Panasonic Corp | Method of evaluating imaged image |
| JP2009211023A (en) * | 2007-04-19 | 2009-09-17 | Panasonic Corp | Method for evaluating camera shake correcting function of imaging device and method for generating camera shake model waveform |
| US20110228102A1 (en) * | 2008-11-28 | 2011-09-22 | Hideyuki Hashi | Shake measurement system, shake measurement method, and imaging device |
| US8514289B2 (en) * | 2009-11-20 | 2013-08-20 | Samsung Electronics Co., Ltd. | Method and apparatus for estimating point spread function |
| JP2013025267A (en) * | 2011-07-26 | 2013-02-04 | Sony Corp | Evaluation method, camera shake model waveform generation method, and information processor |
| WO2013076963A1 (en) * | 2011-11-22 | 2013-05-30 | パナソニック株式会社 | Measuring method, measuring device, computer program and recording medium |
| WO2013114896A1 (en) * | 2012-02-03 | 2013-08-08 | パナソニック株式会社 | Evaluation method, evaluation device, computer program, and recording medium |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105791656A (en) * | 2014-12-19 | 2016-07-20 | 宁波舜宇光电信息有限公司 | Correction system and method of image module optical image stabilizer system |
| CN105791656B (en) * | 2014-12-19 | 2019-10-18 | 宁波舜宇光电信息有限公司 | A kind of correction system and its method of image mould group optical anti-vibration system |
| CN104954782A (en) * | 2015-06-08 | 2015-09-30 | 小米科技有限责任公司 | Testing method and device of stabilizing performance of imaging equipment |
| CN104954782B (en) * | 2015-06-08 | 2017-03-15 | 小米科技有限责任公司 | The method of testing of the anti-shudder performance of imaging device and equipment |
| CN105049839A (en) * | 2015-07-13 | 2015-11-11 | 成都西可科技有限公司 | Mobile terminal-based OIS camera module test system and test method |
| CN105163009A (en) * | 2015-08-04 | 2015-12-16 | 南昌欧菲光电技术有限公司 | Picture and method for testing camera module |
| CN105163009B (en) * | 2015-08-04 | 2020-06-16 | 南昌欧菲光电技术有限公司 | Picture and method for testing camera module |
| CN106559615A (en) * | 2015-09-29 | 2017-04-05 | 宁波舜宇光电信息有限公司 | The calibration equipment of camera module optical anti-vibration system and its bearing calibration |
| CN106559615B (en) * | 2015-09-29 | 2020-04-03 | 宁波舜宇光电信息有限公司 | Correction equipment and correction method for optical anti-shake system of camera module |
| WO2022062163A1 (en) * | 2020-09-28 | 2022-03-31 | 诚瑞光学(深圳)有限公司 | Method for testing optical image stabilization performance of camera driving motor |
| CN112351274A (en) * | 2020-11-09 | 2021-02-09 | 重庆市天实精工科技有限公司 | Method and system for detecting anti-shake performance of optical anti-shake camera and storage medium |
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Application publication date: 20140402 |