Camera module set one time programmable (OTP) burning photosource coefficient remedying and controlling method

Abstract

The invention discloses a camera module set one time programmable (OTP) burning photosource coefficient remedying and a controlling method which comprise steps as follows: a. a photosource image A of a standard sample can be gathered under an OTP burning standard environment; b. a photosource image B of the standard sample can be gathered under an OTP burning and being corrected environment; c. the photosource coefficient matrix of the image A in the step a and the image B in the step b can be calculated by a photosource coefficient calculation software to acquire a photosource coefficient template; d. when the camera module set is burned under the OTP burning to be corrected environment, the photosource coefficient template of the step c can be brought to do coefficient correction. After the coefficient is corrected, a photosource image C is obtained; e. when the camera module set OTP is burned, the camera module set can do data burning according to the corrected photosource image C in the step d. The camera module set OTP burning photosource coefficient remedying and the controlling method can achieve to unify photosources of different photosource equipments into an effect under an identical target photosource in the camera module set OTP burning station to solve the problem that photosources in different color temperatures are difficult to adjust to be consistent in the different burning stations.

Description

Technical field [0001] The invention relates to a management and control method, in particular to a method for compensation and management and control of a camera module OTP burning light source coefficient, which is suitable for improving the OTP burning consistency of the camera module, thereby enhancing the consistency of the camera module. Background technique [0002] With the increasing application of high-pixel cameras such as 5Meg, 8Meg, and 12Meg, end customers have higher and higher requirements for the imaging effect and quality of the camera. How to improve the consistency and performance of the camera module has become particularly important , OTP is the acronym for One Time Programmable in English. It is a memory type of MCU, which means one-time programming. OTP mostly adopts fusion wire structure. The programming process is irreversible destruction. OTP is convenient and fast with its low price. The use of high-pixel cameras has been more and more applied, which h...

AI Technical Summary

Problems solved by technology

[0002] With the increasing application of high-resolution cameras such as 5Meg, 8Meg, and 12Meg, end customers have higher and higher requirements for the imaging effect and quality of cameras. How to improve the consistency and performance of camera modules has become particularly important. , OTP is the acronym for One Time Programmable in English. It is a memory type of MCU, which means one-time programming. OTP mostly uses a fuse structure. The programming process is an irreversible destructive activity. The use of high-pixel cameras has been used more and more, and it has played a great role in improving the quality of high-pixel cameras. For example, when the camera modules leave the factory, the R / G of each module is calculated separately. , B / G and other ratios, and burn these ratios into the OTP, then the client only needs to read these ratios from the OTP and calculate the final increase value when displaying the image, and set them into the image, it is not easy to appear The phenomenon of color cast, therefore, R / G, B / G data is one of the most important data in OTP programming, but, in the process of camera module OTP programming, different programming stations have different light source equipment, and The difference in color temperature of light sources of different light source devices leads to poor consistency of products programmed under different light sources, and there is no effective means to unify the color temperature differences of light sources to be truly consistent. Problems that urgently need to be solved in the industry

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