CN202818516U

CN202818516U - Camera module image function detection apparatus and system possessing the apparatus

Info

Publication number: CN202818516U
Application number: CN 201120513123
Authority: CN
Inventors: 林尔刚
Original assignee: TRULY SEMICONDUCTORS (SHANWEI) CO Ltd
Current assignee: Truly Opto Electronics Ltd
Priority date: 2011-12-09
Filing date: 2011-12-09
Publication date: 2013-03-20
Anticipated expiration: 2021-12-09

Abstract

The embodiment of the utility model provides a camera module image function detection apparatus and a system possessing the apparatus, wherein the apparatus comprises a camera module, a digit image gatherer in connection with the camera module, collecting DTP (Digital Test Paper) data outputted by a CIS (complementary metal-oxide semiconductor image sensor) in the camera module and outputting the DTP data after collection, wherein the CIS outputs the DTP data according to preset fixed image information; a digit image memory for storing standard DTP data corresponding with the DTP data; and a processor respectively in connection with the digit image gatherer and the digit image memory, receiving the DTP data and the standard DTP data, comparing the DTP data and the standard DTP data to generate a comparison result and determining whether the comparison result is in a prestored threshold scope. The detection apparatus realizes CIS inner defect detection and ensures user experience.

Description

A kind of camera module imaging function checkout gear and have the system of this device

Technical field

The utility model relates to the camera field, more particularly, relates to a kind of camera module imaging function checkout gear and has the system of this device.

Background technology

Camera also claims the camera module, and in the production testing link of camera module, it is an of paramount importance ring that imaging function detects.The camera module of functional issues occurs for imaging function, just there is no need to enter next process; Otherwise it is combined with terminal equipment must affect user's experience, causes the feedback of product quality problem.

The open circuit of camera module pin or short circuit are the unusual main causes of its imaging function, prior art is by using embedded device can effectively detect the short circuit problem of opening of camera module pin, yet this embedded device is because the restriction of its design, unusually often can't detect opened the imaging function that short circuit problem causes by non-pin.Main electronic component CIS (CMOS Image Sensor, cmos image sensor such as the camera module; Wherein CMOS is Complementary Metal-Oxide Semiconductor, metal oxide semiconductor device) internal flaw can cause CIS significantly unusual striped to occur under dark situation, the internal flaw of this CIS is can't open short-circuit conditions by the pin of camera module to judge, detect by existing embedded device, to cause CIS inside to exist the unusual camera module of defective to come into the market, affect the user and experience.

The utility model content

In view of this, the utility model provides a kind of camera module imaging function checkout gear and has the system of this device, can't detect the problem of CIS internal flaw to solve prior art, realize that comparatively comprehensively camera module imaging function detects, thereby guarantee that the user experiences.

For achieving the above object, the utility model provides following technical scheme:

A kind of camera module imaging function checkout gear comprises:

The camera module;

Link to each other with described camera module, gather the CIS (cmos image sensor in the described camera module, CMOS Image Sensor) DTP (the Digital Test Pattern of output, the digital test pattern) data, and exporting afterwards the digital image acquisition device of described DTP data in collection, described CIS is according to the described DTP data of still image information output that preset;

Store the digital image memory of the standard DTP data corresponding with described DTP data;

Link to each other with described digital image memory with described digital image acquisition device respectively, receive described DTP data and described standard DTP data, described DTP data and described standard DTP data are compared, generate comparison result, judge the whether processor in pre-stored threshold range of described comparison result.

Preferably, described CIS comprises:

Receive the control register of DTP control command;

Link to each other with described control register, export the image-signal processor of the DTP data corresponding with described DTP control command.

Preferably, described camera module imaging function checkout gear also comprises:

Link to each other with described digital image acquisition device, described digital image memory and described processor respectively, receive and temporary described DTP data and described standard DTP data, so that the buffer that described processor extracts.

Link to each other with described processor, show the display of described comparison result and/or described judged result.

Link to each other with described processor, when described comparison result exceeds described threshold range, initiate the buzzer of alarm.

Preferably, described digital image acquisition device, described digital image memory and described processor concentrated setting are in a main frame.

The utility model also provides a kind of camera module imaging function detection system, it is characterized in that, comprises embedded device and camera module imaging function checkout gear described above.

By above technical scheme, can find out that the camera module is according to still image information output DTP data, the DTP data of so different camera module output must be consistent; By storage standards DTP data in digital image memory in advance, and offer the DTP data of processor by the digital image acquisition device according to the camera module, export the DTP data of corresponding standard to processor, processor is compared described DTP data and described standard DTP data, and whether qualified according to the threshold decision comparison result that prestores, the image fan-out capability standard picture fan-out capability due with it that is about to the camera module compared, and then judges whether it is unusual.The camera module imaging function checkout gear that the utility model embodiment provides has been realized the detection to the CIS internal flaw of camera module, has realized that comparatively comprehensively camera module imaging function detects, thereby has guaranteed user's experience.

Description of drawings

In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.

Fig. 1 is the structural representation of a kind of camera module of the utility model imaging function checkout gear;

Fig. 2 is the structural representation of the CIS in the utility model camera module;

Fig. 3 is another structural representation of a kind of camera module of the utility model imaging function checkout gear;

Fig. 4 is the another structural representation of a kind of camera module of the utility model imaging function checkout gear.

Embodiment

Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of the utility model protection.

The utility model embodiment aims to provide a kind of camera module imaging function checkout gear and has the system of this device, with the detection of realization to the CIS internal flaw of camera module, thereby guarantees that the user experiences.

Fig. 1 is the structural representation of a kind of camera module of the utility model imaging function checkout gear.With reference to Fig. 1, this checkout gear comprises: camera module 100, digital image acquisition device 200, digital image memory 300 and processor 400; Wherein camera module 100 comprises CIS 110.

CIS 110 in the camera module 100 presets multiple still image information, each light-sensitive image vegetarian refreshments of CIS 110 can be exported the still image information of appointment according to demand, such as the complete blue or complete green picture of fixing output, namely export DTP (Digital Test Pattern, digital test pattern) data;

With reference to Fig. 2, Fig. 2 is the structural representation of the CIS in the utility model camera module.CIS 110 comprises: control register 111, image-signal processor 112;

Control register 111 receives from the DTP control command of testing staff to image-signal processor 112;

Image-signal processor 112 links to each other with control register 111, control register 111 is according to the DTP control command that receives, the control image-signal processor 112 outputs still image information corresponding with described DTP control command, i.e. the output DTP data corresponding with described DTP control command; The still image information of output is preferably the image of single tone, such as full indigo plant or entirely green;

Digital image acquisition device 200 links to each other with camera module 100, when CIS 110 output DTP data, gathers described DTP data, and after collection described DTP transfer of data is entered processor 400.

Digital image memory 300 stores standard DTP data, and when camera module 100 is exported described DTP data to processor 400, exports the standard DTP data corresponding with described DTP data to processor 400.

Processor 400 links to each other with digital image memory 300 with digital image acquisition device 200 respectively, receive described DTP data and described standard DTP data, described DTP data and described standard DTP data are compared, generate comparison result, judge that described comparison result is whether in pre-stored threshold range;

Wherein, comparing of described DTP data and described standard DTP data can be, the color data of the color data of each pixel and standard DTP data image correspondence position pixel is compared one by one in the DTP data image, can set up corresponding coordinate at image, compare two pixels of X and Y coordinates identical in two images; When output image for entirely green, so the color data of each pixel be R (redness, Red)=0, B (blueness, Blue)=0, G (green, Green)=255; Judge that whether described comparison result can be in pre-stored threshold range, judge in the DTP data image with the unmatched number of standard DTP data image whether in default permission number, also can be by judging not whether matching ratio surpasses preset value and judge etc.; Threshold range can be adjusted according to practical application, does not limit.

Preferably, digital image acquisition device 200, digital image memory 300 and processor 400 can concentrated setting in a main frame 10, as shown in Figure 3, Fig. 3 is another structural representation of a kind of camera module of the utility model imaging function checkout gear.

The camera module imaging function checkout gear that the utility model embodiment provides, camera module are according to still image information output DTP data, and the DTP data of so different camera module output must be consistent; By storage standards DTP data in digital image memory in advance, and offer the DTP data of processor by the digital image acquisition device according to the camera module, export the DTP data of corresponding standard to processor, processor is compared described DTP data and described standard DTP data, and whether qualified according to the threshold decision comparison result that prestores, the image fan-out capability standard picture fan-out capability due with it that is about to the camera module compared, and then judges whether it is unusual.The camera module imaging function checkout gear that the utility model embodiment provides has been realized the detection to the CIS internal flaw of camera module, has realized that more comprehensive camera module imaging function detects, thereby has improved user's experience.

Fig. 4 is the another structural representation of a kind of camera module of the utility model imaging function checkout gear.In conjunction with Fig. 1 and shown in Figure 3, device shown in Figure 3 also comprises on the basis of device shown in Figure 1: buffer 500, display 600 and buzzer 700.

Buffer 500 links to each other with digital image acquisition device 200, digital image memory 300 and processor 400 respectively, receives and temporary described DTP data and described standard DTP data, so that processor 400 extracts.

Display 600 links to each other with processor 400, described comparison result and/or described judged result that video-stream processor 400 is processed.

Buzzer 700 links to each other with processor 400, when processor 400 judges that described comparison result exceeds described threshold range, initiates alarm.

Preferably, camera module 100, digital image acquisition device 200, digital image memory 300, processor 400, buffer 500, but display 600 and buzzer 700 equal concentrated settings are in same main frame.

The utility model also provides a kind of camera module imaging function detection system, and described system comprises embedded device and camera module imaging function checkout gear described above.The camera module imaging function checkout gear that the utility model provides can be combined with existing embedded device, and the accuracy that detects to improve camera module imaging function is experienced thereby improve the user.

To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the utility model.Multiple modification to these embodiment will be apparent concerning those skilled in the art, and General Principle as defined herein can in the situation that does not break away from spirit or scope of the present utility model, realize in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.

Claims

1. a camera module imaging function checkout gear is characterized in that, comprising:

The camera module;

Link to each other with described camera module, gather the DTP data of the CIS output in the described camera module, and export afterwards the digital image acquisition device of described DTP data in collection, described CIS is according to the described DTP data of still image information output that preset;

2. camera module imaging function checkout gear according to claim 1 is characterized in that described CIS comprises:

Receive the control register of DTP control command;

3. camera module imaging function checkout gear according to claim 1 is characterized in that, also comprises:

4. camera module imaging function checkout gear according to claim 1 is characterized in that, also comprises:

5. camera module imaging function checkout gear according to claim 1 is characterized in that, also comprises:

6. camera module imaging function checkout gear according to claim 1 is characterized in that, described digital image acquisition device, and described digital image memory and described processor concentrated setting are in a main frame.

7. a camera module imaging function detection system is characterized in that, comprises each described camera module imaging function checkout gear of embedded device and claim 1 to 6.