CN1738362A - Handset camera module capable of recognizing merchandise true or false and its control method - Google Patents
Handset camera module capable of recognizing merchandise true or false and its control method Download PDFInfo
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- CN1738362A CN1738362A CN200510047164.0A CN200510047164A CN1738362A CN 1738362 A CN1738362 A CN 1738362A CN 200510047164 A CN200510047164 A CN 200510047164A CN 1738362 A CN1738362 A CN 1738362A
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Abstract
The invention relates to a mobile phone camera-shooting mode, especially a camera shooting mode and its control method used in the mobile phone which can recognize the truth-false of product. The invention comprises following structures: a camera shooting module group used in said special mobile phone, comprising a lens, a lens holder, a light sensitive chip, a flexible circuit board, and at least one light source mounted around the lens holder. The advantages of said invention comprise: since the optical focusing handle is added in the system, so the focus imaging range is 3-7 cm, and the blooming coursed by close-perspective recording with far focus of common mobile phone camera shooting module group is overcame; the light source mounted around the lens holder can overcome the steaking coursed by long exposure time of common mobile phone camera shooting module group; and the gray phenomenon of image coursed by the barrier as hand and mobile phone is reduced, so the sharpness and the contras are improved significantly.
Description
Technical field
The present invention relates to a kind of cell-phone camera module, relate in particular to a kind of shooting module and control method thereof that is used on the energy recognition value true and false mobile phone.
Technical background
Fake and forged commodity have been bought in order to prevent the consumer by present manufacturer, usually some signs that distinguish the true from the false on commodity, have been increased, the identification of anti-false sign at present mainly uses scanner to realize, at the cost height of dedicated scan instrument and computer system thereof, be unfavorable for the shortcoming that consumers in general use, someone has proposed to carry out with mobile phone the scheme of anti-counterfeiting mark identification, this scheme is taken anti-counterfeiting mark by mobile phone cam, by the microprocessor of mobile phone inside captured anti-counterfeiting mark is discerned then.But the identification of anti-counterfeiting mark is for the contrast of image, definition has very high requirement, common cell-phone camera module is to be used for common remote image to take, when carrying out in-plant sign shooting, because focal length is a burnt state far away, captured identification image is fuzzy, simultaneously, because staff itself has shake, under state closely, it is very big that this shake is reflected on the image amplitude, because the operating state of common cell-phone camera module adopts the mode of automatic exposure, time for exposure is long, therefore this shake can cause streaking, fuzzy, and because regular handset shooting module does not have lighting source, in close-perspective recording because mobile phone and staff blocking light are arranged, therefore captured image is gloomy, poor contrast.So the anti-counterfeiting mark image that mobile phone is taken can't satisfy the specific (special) requirements of later stage to information processing that anti-counterfeiting mark is explained.
Summary of the invention:
The present invention provides a kind of shooting module and control method thereof that is used on the energy recognition value true and false mobile phone for solving the problems of the technologies described above, purpose provides needed high definition for anti-counterfeiting mark identification mobile phone, the anti-counterfeiting mark image of high-contrast, make this image can be by the correct information that reads, this cell-phone camera module can also use as common cell-phone camera module simultaneously.
For achieving the above object, the present invention is made of following structure: be used for the shooting module on the energy recognition value true and false mobile phone, comprise camera lens, lens bracket, sensitive chip, flexible PCB, a lighting source is set around lens bracket at least.
Described lens bracket is connected with the focusing handle.
It is 3-7cm that described focusing handle is moved back adjustable focus scope.
Described sensitive chip is an adjustable sensitive chip of time for exposure; The time for exposure of sensitive chip is 8-20ms.
Described lighting source is a light-emitting diode.
Being used for the control method of the shooting module on the energy recognition value true and false mobile phone, is to be made of following step: the step of selecting anti-counterfeit bar code identification menu on the function selecting menu of mobile phone; The shooting module of mobile phone is adjusted to the step of nearly burnt state; The step that microprocessor was adjusted the time for exposure; Start the step of lighting source; The step of taking pictures.
Be used for the control method of the shooting module on the energy recognition value true and false mobile phone, also comprise the steps: the step that the size of identification image on the display screen is adjusted;
Described nearly burnt state is that focal range is 3-7cm.
The described time for exposure is adjusted to fixedly time for exposure pattern from auto exposure mode, and the time for exposure is 8ms-20ms.
The step that described image size is adjusted is that the size of the rectangle frame that demonstrates on screen after according to the bar-code identification program start of image with preview is adjusted.
Advantageous effect of the present invention: the present invention makes focal length imaging scope at 3-7cm owing to increased the optical focusing handle, has been to overcome regular handset shooting module because the blooming that close-perspective recording produced under the focal length far away; Around lens bracket, be provided with lighting source and shorten the time for exposure, overcome regular handset shooting module because the long streaking phenomenon that causes of time for exposure, improved because the gloomy phenomenon of image that staff and mobile phone are caused blocking of light, improved the definition and the contrast of image greatly, can satisfy the requirement of anti-counterfeiting mark identification fully for image.Thereby increasing, the information that makes things convenient for the user by mobile phone the anti-counterfeiting mark of commodity to be explained understands.
Description of drawings
Fig. 1 is camera module group lens support of the present invention and the unconnected section of structure of flexible PCB;
The section of structure that Fig. 2 is connected with flexible PCB for camera module group lens support of the present invention;
Fig. 3 is a lighting source shooting of the present invention modular structure vertical view;
Fig. 4 is the two lighting source shooting of the present invention modular structure vertical view;
Fig. 5 is a flow chart of the present invention.
The PDF417 two-dimensional bar of Fig. 6 national standard;
Fig. 7 is the captured image in 2 D code of common shooting module;
Fig. 8 is the captured image in 2 D code of cell-phone camera module of the present invention.
Among the figure 1, camera lens; 2, lens bracket; 3, focusing handle; 4, sensitive chip; 5, flexible PCB; 6, lighting source; 7, solder sphere.
Embodiment
With reference to the accompanying drawings the structure of the cell-phone camera module that is used for commodity true and false identification is further specified below.
Constitute by following structure with reference to Fig. 1 the present invention: camera lens 1 is housed in the lens bracket 2, focusing handle 3 is connected with lens bracket 2, focusing handle 3 rotates by gear driven lens bracket 2, thereby change the focal length of camera lens 1, sensitive chip 4 is connected with lens bracket 2, sensitive chip 4 welds together by solder sphere 7 and flexible PCB 5, and lighting source 6 is welded on the flexible PCB 5.Described lighting source 6 is a light-emitting diode, and the time for exposure of described sensitive chip is 8-20ms, and sensitive chip is an adjustable sensitive chip of time for exposure.The adjustable focal length of optical lens in nearly burnt the shooting, is rotated the focusing handle, regulates focusing range at 3-7cm.
Be connected with flexible PCB 5 with reference to lens bracket 2 shown in Figure 2, other structure with the shooting module of Fig. 1 is identical.
Periphery with reference to lens bracket 2 shown in Figure 3 is provided with a lighting source.
The periphery of reference lens bracket 2 shown in Figure 4 is provided with the lighting source of two symmetries, and two lighting sources can make the brightness of anti-counterfeiting mark even, the better effects if of taking pictures.
Below with reference to Fig. 5-Fig. 8 flow process of the present invention is described.
At first, the user selects corresponding anti-counterfeit bar code identification menu (step 10) on the function selecting menu of mobile phone, moving the focusing handle makes the camera module group lens on the mobile phone be adjusted to nearly burnt state (step 20), focal length is 3-7cm, nearly burnt state can make the image of closely taking down keep good definition down, microprocessor is adjusted to fixing time for exposure pattern with the time for exposure of cell-phone camera module from auto exposure mode, time for exposure is 8ms～20ms (step 30), the shortening of time for exposure, can avoid the streaking phenomenon that shake brought, keep the definition of image owing to staff.Because the shortening of time for exposure, can cause the decline of image brightness, therefore, the control signal that receives microprocessor starts LED source throw light on (step 40), because the time for exposure shortens the light energy losses of being brought, promote the brightness and contrast of image to remedy.The image imaging that sensitive chip is shot with video-corder is on mobile phone screen, national standard is big or small restricted for image that bar code becomes, PDF417 must be greater than 5 more than the pixel for the stria regulation of bar code as shown in Figure 6, therefore, understand the rectangle frame that draw on screen behind the bar-code identification program start, the prompting user adjusts to image the size (step 50) of rectangle frame.The user presses the button after adjusting the position and definition of image, take pictures (step 60).Fig. 7 is the captured anti-counterfeit bar code image of regular handset shooting module, Fig. 8 is that the shooting module that is used on the energy recognition value true and false mobile phone is 15ms, the anti-counterfeit bar code image that luminous diode illuminating light source is captured in the time for exposure, and the captured bar code image of shooting module that as seen is used on the energy recognition value true and false mobile phone can satisfy the requirement of bar-code identification to image fully.
After above-mentioned workflow also can be moved the focusing handle earlier and made camera module group lens on the mobile phone be adjusted to nearly burnt state, the anti-counterfeit bar code identification menu in the mobilizing function choice menus, microprocessor is adjusted the time for exposure again.
Above-mentioned startup led lighting also can start in step 20, step 30, step 50.
Described anti-counterfeit bar code is one dimension sign indicating number and two-dimension code.
Claims (10)
1, be used for can recognition value shooting module on the true and false mobile phone, comprise camera lens, lens bracket, sensitive chip, flexible PCB, it is characterized in that around lens bracket, being provided with at least a lighting source.
2, the shooting module that is used on the energy recognition value true and false mobile phone according to claim 1 is characterized in that described lens bracket is connected with the focusing handle.
3, the shooting module that is used on the energy recognition value true and false mobile phone according to claim 2 is characterized in that it is 3-7cm that described focusing handle is moved back adjustable focus scope.
4, the shooting module that is used on the energy recognition value true and false mobile phone according to claim 1 is characterized in that described sensitive chip is an adjustable sensitive chip of time for exposure; The time for exposure of sensitive chip is 8-20ms.
5, the shooting module that is used on the energy recognition value true and false mobile phone according to claim 1 is characterized in that described lighting source is a light-emitting diode.
6, be used for the control method of the shooting module on the energy recognition value true and false mobile phone, it is characterized in that it being to constitute by following step:
On the function selecting menu of mobile phone, select the step of anti-counterfeit bar code identification menu;
The shooting module of mobile phone is adjusted to the step of nearly burnt state;
The step that microprocessor was adjusted the time for exposure;
Start the step of lighting source;
The step of taking pictures.
7, the control method that is used for the shooting module on the energy recognition value true and false mobile phone according to claim 6 is characterized in that also comprising the steps:
The step that the size of identification image on the display screen is adjusted.
8, the shooting module that is used on the energy recognition value true and false mobile phone according to claim 6 is characterized in that described nearly burnt state is that focal range is 3-7cm.
9, according to claim 6 be used for can recognition value shooting module on the true and false mobile phone, it is characterized in that the described time for exposure is adjusted to fixedly time for exposure pattern from auto exposure mode, the time for exposure is 8ms-20ms.
10, according to claim 8 be used for can recognition value shooting module on the true and false mobile phone, it is characterized in that step that described image size is adjusted is that the size of the rectangle frame that demonstrates after according to the bar-code identification program start of image with preview is adjusted on screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200510047164.0A CN1738362A (en) | 2005-09-09 | 2005-09-09 | Handset camera module capable of recognizing merchandise true or false and its control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200510047164.0A CN1738362A (en) | 2005-09-09 | 2005-09-09 | Handset camera module capable of recognizing merchandise true or false and its control method |
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| CN1738362A true CN1738362A (en) | 2006-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200510047164.0A Pending CN1738362A (en) | 2005-09-09 | 2005-09-09 | Handset camera module capable of recognizing merchandise true or false and its control method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013179250A1 (en) | 2012-05-30 | 2013-12-05 | Evertech Properties Limited | Article authentication apparatus having a built-in light emitting device and camera |
| CN106131415A (en) * | 2016-07-19 | 2016-11-16 | 广东欧珀移动通信有限公司 | Image in 2 D code scan method, device and mobile terminal |
| CN107479061A (en) * | 2017-08-25 | 2017-12-15 | 重庆交通大学 | A kind of safe early warning method and system based on image recognition and radar range finding |
-
2005
- 2005-09-09 CN CN200510047164.0A patent/CN1738362A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013179250A1 (en) | 2012-05-30 | 2013-12-05 | Evertech Properties Limited | Article authentication apparatus having a built-in light emitting device and camera |
| CN104395938A (en) * | 2012-05-30 | 2015-03-04 | 印刷易联网有限公司 | Article authentication apparatus with built-in light emitting device and camera |
| EP2856409A4 (en) * | 2012-05-30 | 2015-07-01 | Easy Printing Network Ltd | Article authentication apparatus having a built-in light emitting device and camera |
| CN104395938B (en) * | 2012-05-30 | 2018-12-18 | 印刷易联网有限公司 | Article authentication apparatus with built-in light emitting device and camera |
| CN106131415A (en) * | 2016-07-19 | 2016-11-16 | 广东欧珀移动通信有限公司 | Image in 2 D code scan method, device and mobile terminal |
| CN106131415B (en) * | 2016-07-19 | 2020-02-11 | Oppo广东移动通信有限公司 | Two-dimensional code image scanning method and device and mobile terminal |
| CN107479061A (en) * | 2017-08-25 | 2017-12-15 | 重庆交通大学 | A kind of safe early warning method and system based on image recognition and radar range finding |
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Open date: 20060222 |