Bayer image compression method based on YUV conversion

An image compression and image technology, which is applied in the field of aerospace remote sensor electronics, can solve the problems of not considering the correlation of three-color images with different brightness color images, unfavorable real-time compression of space camera images, and unreasonable allocation of compression coding resources. Achieve the effects of small size, low power consumption, resource occupation, improved image compression performance, and reduced correlation
CN101977330BInactive Publication Date: 2011-12-21BEIJING RES INST OF SPATIAL MECHANICAL & ELECTRICAL TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
BEIJING RES INST OF SPATIAL MECHANICAL & ELECTRICAL TECH
Publication Date
2011-12-21
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a Bayer image compression method based on YUV conversion, which belongs to the technical field of an aerospace optical remote sensor and is a Bayer image compression method used for an aerospace optical remote sensing CMOS camera. The method comprises the following steps: carrying out space conversion on a Bayer-format image from a three-color space to a brightness-chromaspace, eliminating the relativity among the three color components to be ready for different compression ratios used by brightness and chroma, self-adaptively determining the compression ratios basedon the complexity of the image, carrying out line conversion and encoding. The invention greatly improves the quality of the compressed image by carrying out space conversion to eliminate the relativity among the three color components, and further enhances the adaptive capacity of the camera by using different compression ratios for images of different complexities.
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Description

technical field

[0001] The invention relates to a YUV transform-based Bayer image compression method, which belongs to the field of aerospace remote sensor electronics. Background technique

[0002] Lightweight and low-power area array CMOS cameras have been widely used in satellite body mechanisms, deep space exploration, video telemetry on space stations and spacecraft. It can monitor and evaluate activities such as unfolding, and provide image basis for scientific researchers to judge the working conditions of satellites on the ground. It has been successfully applied to many models.

[0003] Cameras are divided into black-and-white and color. Color cameras are used to monitor colored objects. At present, there are many ways to obtain color images from space optical remote sensing cameras. Large-scale remote sensing cameras generally use multiple sensors to obtain images of different spectral bands and then pass them through post-processing. Composite color, while the li...

Claims

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