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Camera module calibration method and system thereof

A technology of camera module and calibration method, which is applied in the direction of color signal processing circuit, etc., can solve the problems that the camera module cannot be perfectly suitable for calibration, and the images are not the same, so as to reduce the waste of time and improve the feasibility

Inactive Publication Date: 2018-05-18
BISON ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, through this statistical method, some problems will arise
In practical applications, the lenses of each camera module cannot be exactly the same, and the results corrected by the calibration parameters cannot be perfectly suitable for calibrating each camera module
Therefore, by burning the same programming file into camera modules of the same series with the same components, there will still be slight differences between these camera modules, resulting in different output images

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  • Camera module calibration method and system thereof
  • Camera module calibration method and system thereof
  • Camera module calibration method and system thereof

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Embodiment Construction

[0017] Various exemplary embodiments will be described more fully hereinafter with reference to the accompanying drawings, in which some exemplary embodiments are shown. However, inventive concepts may be embodied in many different forms and should not be construed as limited to the illustrative embodiments set forth herein. Rather, these exemplary embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the inventive concept to those skilled in the art. In the drawings, the size and relative sizes of layers and regions may be exaggerated for clarity. Like numbers indicate like elements throughout.

[0018] It should be understood that although the terms first, second, third, etc. may be used herein to describe various elements, parameters, signals or other tangible or intangible items, such tangible or intangible items should not be limited by these terms. . For example, these terms are used to distinguish one eleme...

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Abstract

The invention relates to a camera module calibration method and system thereof. A method for calibrating a camera module, comprising the following steps: calibrating the image generated by the optical lens of each camera module focusing light on the photosensitive element of each camera module, so as to generate compensation corresponding to each camera module A parameter group; modifying the color temperature correction compensation value table in the compiled lens driver firmware according to each compensation parameter group; and directly burning each modified and compiled lens driver firmware into each camera module.

Description

technical field [0001] The present invention relates to a camera module calibration (Calibration) method, in particular to a camera module quick calibration method and system thereof. Background technique [0002] Generally speaking, when products are mass-produced, there are bound to be slight differences between each product. Of course, there is no exception in the production process of camera modules. On the other hand, the optical lenses of the camera module have the problem of not being able to collect light completely and evenly, so the image obtained by the uncorrected camera module will have shadows (Lens Shading) due to light attenuation or refraction. [0003] Furthermore, because mass production of camera modules takes a lot of man-hours, the traditional calibration method is to find a small number of camera modules that can be used as a basis, and make image values ​​for each module in this batch at different calibrated color temperatures (ColorTemperature). Re...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N9/73
Inventor 赖孟修洪戎辉李昀儒
Owner BISON ELECTRONICS