Automatic exposure method and camera module detection method

A camera module, automatic exposure technology, applied in the direction of image communication, TV, color TV parts, etc., can solve the problem that the effect has not been processed, the image data cannot meet the brightness requirement, and the exposure cannot be automatically adjusted, etc., so as to achieve convenient detection , to avoid the effect of inflow into the market

Active Publication Date: 2014-07-16
TRULY OPTO ELECTRONICS
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Problems solved by technology

[0002] With the development of camera modules, the current mainstream photosensitive chips in camera modules generally do not have an image processor in order to increase the photosensitive area and reduce the chip size, so the image data output by the camera module is converted by photoelectric induction. Raw data, most of the effects have not been processed, especially the impact caused by the camera module not automatically adjusting the exposure. The image data output by the camera module cannot meet the brightness requirements in different environments. brought a lot of inconvenience

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[0031] As mentioned in the background technology, in order to increase the photosensitive area and reduce the size of the chip, the mainstream photosensitive chips in the current camera module generally do not have an image processor, so the image data output by the camera module are all original data, and there is no automatic exposure, etc. function, which brings a lot of inconvenience to the camera module during shipment inspection.

[0032] Based on this, the present invention provides an automatic exposure method to overcome the above-mentioned problems in the prior art, including:

[0033] S1. Exposing the target, and determining the target brightness standard range value;

[0034] S2. Obtain the exposure time and brightness gain value of the photosensitive chip, and the brightness comparison value corresponding to the exposure time and brightness gain value;

[0035] S3. Judging whether the brightness control value is within the brightness standard range value, if yes,...

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Abstract

The invention discloses an automatic exposure method and a camera module detection method. Automatic exposure is confirmed to be finished by judging that a brightness contrast value is within a brightness standard range, and the environmental change is monitored in real time. With the automatic exposure method, the camera module is detected before shipment of the camera module, whether image brightness of the camera module meets the preset requirement or not under the brightness of different environments is detected by detecting whether the factors affecting output image data of the camera module are qualified or not, detection of the camera module in the shipment process is facilitated, unqualified camera modules are prevented from flowing into the market, and therefore electronic equipment comprising the unqualified camera modules are prevented from being adversely affected.

Description

technical field [0001] The invention relates to the technical field of camera modules, and more specifically, to an automatic exposure method and a camera module detection method. Background technique [0002] With the development of camera modules, the current mainstream photosensitive chips in camera modules generally do not have an image processor in order to increase the photosensitive area and reduce the chip size, so the image data output by the camera module is converted by photoelectric induction. Raw data, most of the effects have not been processed, especially the impact caused by the camera module not automatically adjusting the exposure. The image data output by the camera module cannot meet the brightness requirements in different environments. It has brought a lot of inconvenience. Contents of the invention [0003] In view of this, the present invention provides an automatic exposure method and a camera module detection method, which detect before the camer...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/235H04N17/00
Inventor 黄长发张粦钢李建华
Owner TRULY OPTO ELECTRONICS
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