CN201096609Y - Photo-taking mobile phone image-forming quality measurement device - Google Patents
Photo-taking mobile phone image-forming quality measurement device Download PDFInfo
- Publication number
- CN201096609Y CN201096609Y CNU2007201207885U CN200720120788U CN201096609Y CN 201096609 Y CN201096609 Y CN 201096609Y CN U2007201207885 U CNU2007201207885 U CN U2007201207885U CN 200720120788 U CN200720120788 U CN 200720120788U CN 201096609 Y CN201096609 Y CN 201096609Y
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- mobile phone
- light
- photo
- source box
- light source
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Abstract
The utility model discloses a measuring device used for the imaging quality of the photo mobile phone, comprising a light source box, a measuring mark card and a mobile phone clamp; the light source box is used for building the photo environment and providing the measuring light source; the measuring mark card is used as the photo object and is fixed in the light source box; the mobile clamp is used for clamping the photo mobile phone and adjusting the photo distance and angle of the photo mobile phone towards the measuring mark card. The measuring device can be used for adjusting the photo position and angle flexibly so that the process of photo measuring becomes very convenient. The light source box has certain stroke and can fulfill the photo distance requirements of the photo mobile phones with different grades of pixels. The light source box provides various light sources; the switch between the light sources is convenient; the lightness can be adjusted continuously; the light source box can simulate various common light conditions so that the imaging standards of the photo mobile phone are measured comprehensively under various light conditions. Fixing photo frames are specially made for various measuring mark cards so that the installation and disassembly of the measuring mark card are convenient; the consistency of repeated installations is good.
Description
Technical field
The utility model relates to a kind of shooting mobile phone image quality measurement mechanism.
Background technology
Along with the continuous development of photo sensor, shooting mobile phone has obtained great development, only within half a year just from mega pixel to 300 ten thousand pixels, each big mobile phone manufacturer has given great market to shooting mobile phone and has wished.And the consumer is more and more higher to the image quality requirement of shooting mobile phone.But still lack to improve unified standard in the shooting mobile phone industry at present in the industry, do not have the authoritative testing agency of related fields, the consumer is not expert to the shooting mobile phone technology, to the image quality of shooting mobile phone only with subjective judgement.
Scientific methods is that the shooting mobile phone image quality is carried out measures of quantization, relies on accurate data to judge the quality of image quality objectively.The camera present and quality of taking pictures is closely related, each camera manufacturer all has relevant detection project and index, to a certain extent the mobile phone photograph quality is played effect of contraction.But the image quality of shooting mobile phone also has substantial connection with mobile phone itself, therefore need check final image quality on mobile phone.
Normally in vertical light-source box, camera is taken pictures from the bottom up in the system of prior camera imaging measurement, picture by data-interface real-time transfer to computing machine, check picture quality from computing machine.A lot of mobile phones are not supported or externally not open real-time Data Transmission function, can't be adopted the camera imaging measurement system to measure.
In sum, lack a kind of device that can effectively be carried out to picture element measurement amount in the prior art to the shooting mobile phone complete machine.
Summary of the invention
The technical matters that the utility model solves has provided a kind of shooting mobile phone image quality measurement mechanism, can carry out image quality measurement flexibly to various shooting mobile phones easily.
The shooting mobile phone image quality measurement mechanism that the utility model provides comprises: light-source box, measurement mark card and mobile phone anchor clamps; Described light-source box is used to build photo environment and measurement light source is provided, and described measurement mark card is fixed in the light-source box as the object of being taken pictures, and the mobile phone anchor clamps are used for fixing shooting mobile phone, and adjust shooting mobile phone to measuring the take pictures distance and the angle of mark card.
Preferably, also comprise a light-source box base, described light-source box and mobile phone anchor clamps are fixed on this light-source box base, and can move front and back on the light-source box base.
Preferably, described measurement mark fastens even brightness position in light-source box.
Preferably, the measurement light source in the described light-source box is made up of at least a color temperature light sources, when having multiple color temperature light sources, can switch between each light source; In light-source box, simulate different illumination conditions by the brightness of regulating each color temperature light sources.
Preferably, also comprise the luminous environment surveying instrument, the luminous environment parameter in the measurement light source case.
Preferably, described luminous environment surveying instrument is: illuminometer and colour temperature meter.
Preferably, comprise that also is used for fixing a photo frame of measuring the mark card, the inside casing size of this photo frame is not less than the measured zone of measuring the mark card, and the photo frame color is identical with light source tank wall color.
Adopt image quality measurement mechanism described in the utility model,, make that to measure the process of taking pictures very convenient because the position and the angular setting of taking pictures are flexible.Because light-source box possesses certain stroke, satisfy the required distance of taking pictures of each grade pixel shooting mobile phone in addition.Light-source box provides multiple light source, and with regard to easy switching, brightness can be regulated continuously between the light source, can simulate various common illumination conditions, comprehensively the imaging index of shooting mobile phone under various illumination conditions is measured.By making fixedly photo frame to measure for various measurement mark cards, installation, convenient disassembly are repeatedly installed high conformity.
Description of drawings
Fig. 1 is the position view of the utility model light-source box and light-source box base;
Fig. 2 is the utility model measurement mechanism structural representation;
The measuring system block diagram that Fig. 3 adopts measurement mechanism of the present utility model to make up;
The implementing procedure figure that Fig. 4 adopts measurement mechanism of the present utility model to measure.
Embodiment
The present invention is described in detail below in conjunction with accompanying drawing and by specific embodiment.
The shooting mobile phone image quality measurement mechanism that the utility model provides comprises: light-source box, measurement mark card and mobile phone anchor clamps.The structural representation of light-source box 2 and light-source box base 1 in the utility model preferred embodiment as shown in Figure 1.Light-source box 2 is used to simulate various photo environments, avoids the interference of extraneous light, finishes in light-source box and takes pictures.The horizontal light-source box 2 of employing shown in Figure 1, light-source box is placed on the light-source box base 1, can move forward and backward on X-axis and fix, and can adjust the position of light-source box on X-axis according to the height of shooting mobile phone pixel.Light-source box blocks with gobo or shadow shield 3 around in stroke range as shown in Figure 2, stopping the incident of extraneous light, and reserves operating space 4.
II face 6 central authorities of light-source box are used for fixing measures the mark card, needs to guarantee the homogeneity of light-source brightness in mark card zone.Can adopt 9 point photometries, promptly in upper left a, left side, the lower-left, on, the center, in following, upper right, the right side, the bottom right respectively gets any and carries out the light-source brightness uniformity measurement.
Light-source box 2 provides the light source of multiple colour temperature to simulate different illumination conditions.For example, simulate the illumination condition of cloudy daylight, fine daylight, office lighting and incandescent lamp by the light source of four kinds of colour temperatures.The light source of 4 kinds of colour temperatures by 4 independently the switch Control work whether, the brightness of every kind of light source is adjustable continuously, respectively by 4 brightness regulation button even regulation, and indicates corresponding scale.Every kind of light source is made up of 1 group or multi-group light-emitting body, is placed on both sides in the I face 5 of light-source box 2 along the Y-axis symmetry, and I face 5 central authorities reserve operation and observation space 4.If need the light source of other kind of simulation, only need be replaced by corresponding luminophor can realize.By illuminometer and colour temperature meter, be used for measuring the brightness and the colour temperature of various light sources respectively.
Measuring mark fastens in the II of light-source box 2 face 6 inwall central authorities.Measuring the mark card measures including but not limited to standards mark card such as GretagMacbeth ColorChecker (the colored target of mark's bass), ISO12233 resolution mark card, Kodak's ash card, Kodak's 18 GTGs and self-control and blocks.Various mark cards are not of uniform size, are the photo frame of the fixing mark card of each mark card tailoring.Be Simple picture frame fixing on the II of light-source box 2 face 6 inwalls, all photo frame housing sizes must equate at least in vertical direction that the inside casing size is as the criterion all to expose mark card measured zone.Photo frame color and light-source box 2 inwall solid colours.
The mobile phone anchor clamps are placed on I face 5 places of close light-source box on the light-source box base 1.The mobile phone anchor clamps can move on clamp base on X-axis, Y-axis, Z-direction and be fixing, and can be on the XZ plane around anchor clamps rotating shaft rotation and fixing.When taking pictures, mobile phone is contained on the anchor clamps, adjusts take pictures distance and angle by adjusting chucking position.
The system architecture that adopts shooting mobile phone image quality measurement mechanism of the present utility model as shown in Figure 3, mobile phone is taken pictures in light-source box, the photo environment of light-source box is measured by illuminometer and colour temperature meter.Mobile phone photograph is intact, after picture is preserved, by USB mouth or serial ports or bluetooth or infrared interface picture is exported on the computing machine, the measurement mark card at different adopts corresponding software that picture is carried out analyses such as resolution, color, brightness, noise, distortion, dynamic range respectively.Final output digitized result, i.e. quantized result.
The measuring process that adopts shooting mobile phone image quality measurement mechanism of the present utility model to carry out m kind light source and n kind mark card as shown in Figure 4 is:
1, opens first kind of light source in the light-source box, measure mark with first kind and fasten in light-source box, be located at the central area of light-source box II face.With the brightness that illuminometer is measured mark card surface, regulate brightness in specialized range.
2, mobile phone enters exposal model, is contained on the measured material.Camera is to locating tab assembly mark card, in X-axis, Y-axis, Z axle and XZ plane, adjust chucking position and angle, make camera center and mark card center on same horizontal line, measure the mark card and be contained in the center of the viewfinder range of taking pictures or take whole viewfinder range, finish and take pictures and picture-storage.
3, switch to next light source, behind the completing steps 1, take pictures and preserve picture.
Two kinds of orders of taking pictures are arranged: the one, serve as theme to measure the mark card as shown in Figure 4, finish first kind of mark earlier and be stuck under the various light sources and take pictures, carry out again second kind, the third ... mark is stuck under the various light sources takes pictures.The 2nd, serve as theme with light source, under first kind of light source condition, finish earlier measurements that all measure the mark card, switch to again second kind, the third ... carry out all under the light source condition and measure taking pictures of mark card.The switching of light source is more easy to operate than the replacing of measuring the mark card, preferentially adopts first kind of order of taking pictures.
4, finish take pictures after, by the Various types of data interface picture is exported on the computing machine.The picture of taking pictures to different measurement mark cards adopts corresponding software to analyze, the output quantized result.
5,, judge according to relevant criterion whether every index is qualified to quantized result.
Above content be in conjunction with concrete preferred implementation to further describing that the utility model is done, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, under the prerequisite that does not break away from the utility model design, can also make some simple deduction or replace, all should be considered as belonging to protection domain of the present utility model.
Claims (7)
1. a shooting mobile phone image quality measurement mechanism is characterized in that described device comprises: light-source box, measurement mark card and mobile phone anchor clamps; Described light-source box is used to build photo environment and measurement light source is provided, and described measurement mark card is fixed in the light-source box as the object of being taken pictures, and the mobile phone anchor clamps are used for fixing shooting mobile phone, and adjust shooting mobile phone to measuring the take pictures distance and the angle of mark card.
2. shooting mobile phone image quality measurement mechanism according to claim 1 is characterized in that, also comprises a light-source box base, and described light-source box and mobile phone anchor clamps are fixed on this light-source box base, and can move front and back on the light-source box base.
3. shooting mobile phone image quality measurement mechanism according to claim 1 and 2 is characterized in that, described measurement mark fastens even brightness position in light-source box.
4. shooting mobile phone image quality measurement mechanism according to claim 1 and 2 is characterized in that the measurement light source in the described light-source box is made up of at least a color temperature light sources, when having multiple color temperature light sources, can switch between each light source; In light-source box, simulate different illumination conditions by the brightness of regulating each color temperature light sources.
5. shooting mobile phone image quality measurement mechanism according to claim 4 is characterized in that, also comprises the luminous environment surveying instrument, the luminous environment parameter in the measurement light source case.
6. shooting mobile phone image quality measurement mechanism according to claim 5 is characterized in that described luminous environment surveying instrument is: illuminometer and colour temperature meter.
7. shooting mobile phone image quality measurement mechanism according to claim 1 and 2, it is characterized in that, comprise that also is used for fixing a photo frame of measuring the mark card, the inside casing size of this photo frame is not less than the measured zone of measuring the mark card, and the photo frame color is identical with light source tank wall color.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201207885U CN201096609Y (en) | 2007-06-20 | 2007-06-20 | Photo-taking mobile phone image-forming quality measurement device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201207885U CN201096609Y (en) | 2007-06-20 | 2007-06-20 | Photo-taking mobile phone image-forming quality measurement device |
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| Publication Number | Publication Date |
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| CN201096609Y true CN201096609Y (en) | 2008-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2007201207885U Expired - Fee Related CN201096609Y (en) | 2007-06-20 | 2007-06-20 | Photo-taking mobile phone image-forming quality measurement device |
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| CN (1) | CN201096609Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102740113A (en) * | 2012-07-06 | 2012-10-17 | 科瑞自动化技术（苏州）有限公司 | Sensitization measurement device of miniature camera |
| CN103207061A (en) * | 2013-03-27 | 2013-07-17 | 苏州佳世达电通有限公司 | Testing device |
| CN108174148A (en) * | 2017-12-14 | 2018-06-15 | 中国航空工业集团公司上海航空测控技术研究所 | Camera brightness simulated environment platform in a kind of aircraft cabin |
| CN111855156A (en) * | 2020-07-29 | 2020-10-30 | 杭州海康微影传感科技有限公司 | Sampling control method and testing device for lens detection and sampling tool |
-
2007
- 2007-06-20 CN CNU2007201207885U patent/CN201096609Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102740113A (en) * | 2012-07-06 | 2012-10-17 | 科瑞自动化技术（苏州）有限公司 | Sensitization measurement device of miniature camera |
| CN103207061A (en) * | 2013-03-27 | 2013-07-17 | 苏州佳世达电通有限公司 | Testing device |
| CN103207061B (en) * | 2013-03-27 | 2015-09-02 | 苏州佳世达电通有限公司 | A kind of proving installation |
| CN108174148A (en) * | 2017-12-14 | 2018-06-15 | 中国航空工业集团公司上海航空测控技术研究所 | Camera brightness simulated environment platform in a kind of aircraft cabin |
| CN111855156A (en) * | 2020-07-29 | 2020-10-30 | 杭州海康微影传感科技有限公司 | Sampling control method and testing device for lens detection and sampling tool |
| CN111855156B (en) * | 2020-07-29 | 2022-07-26 | 杭州海康微影传感科技有限公司 | Sampling control method and testing device for lens detection and sampling tool |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080806 Termination date: 20130620 |