Registration Preprocessing System Suitable for Multispectral Image Compression

Abstract

The invention discloses a registration pre-processing system suitable for multispectral image compression, and mainly solves the problem that a multispectral image shot by a satellite influences the real-time compression property as not being subjected to registration. The system comprises an image input module (1), an image caching module (2), and a registration calculating module (3), wherein the image input module is used for reorganizing the auxiliary data generated by a panorama camera and the data of a multispectral image to be registered into image data suitable for systematic internal processing, as well as outputting the image data to the image caching module and the registration calculating module; the image caching module is used for caching the image data input by the image input module; the registration calculating module controls the image input module and the image caching module to upload data of a reference spectrum section and data of a spectrum section to be registered, utilizes the uploaded data for registration, and outputs the registered multispectral image to a lower-level system. The registration pre-processing system is easy to realize, can process in time, and improves the compression property of a post-system prominently, and can be used for registration pre-processing operation before the compression of the multispectral image shot by the satellite.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to the preprocessing work before compression of multispectral images, and can be used for registration before compression and transmission of multispectral images captured by satellites. Background technique [0002] Image registration is the process of matching and superimposing two or more images acquired by different sensors or under different conditions. It has been widely used in the fields of remote sensing analysis, computer vision and image processing. [0003] Multispectral images are a collection of images taken by satellites or aircraft in different spectral bands of objects in the same area and at the same time, such as multispectral images taken by four spectral bands of red, green, blue and near-infrared. Since multispectral images contain many spectral segments and have a large amount of information, they can be used for ground remote sensing, landform analysis...

AI Technical Summary

Problems solved by technology

[0009] The disadvantages of the above-mentioned system solutions are: the complexity of the registration algorithm is relatively high, and the hardware implementation is relatively complicated, which needs to be realized with the help of DSP chip and FPGA; the processing delay is relatively large, and it cannot be used for real-time and efficient transmission of multispectral images on satellites

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