Quick algorithm in planar charge coupling device array super resolution imaging technology

Abstract

A quick algorithm relates to the technology of an area array charge coupling device hyper-resolution image by carrying out process to a multiframe picture having mutual shift to a same target to get a frame of picture with even higher resolution characterizing in setting up a pixel level adjacent domain dual linear interpolation image degraded model and applying four-dimensional non-sparse matrix to store the model factor so as to avoid memory and process to large scale sparse matrix, carrying out guantization process to the sub-pixel shift to reduce the requirement of computing process to storage space, the improved Cimmino iterative algorithm speeds up the convergence and reduces computation volume suitable for realizing PC or DSP insertion systems.

Description

Technical field: [0001] The present invention relates to the field of image imaging technology, in particular to an algorithm for the super-resolution imaging technology of an area array charge-coupled device for obtaining a frame of higher-resolution images by processing multiple frames of images with mutual displacements of the same target . Background technique: [0002] The research on super-resolution imaging technology of area array charge-coupled device (CCD for short) is of great significance. Due to the limitation of technology, the resolution of the current imaging system using charge-coupled device as the receiver always has a certain gap with many actual needs. The super-resolution imaging system can use the existing charge-coupled device to obtain images higher than its own resolution, and can achieve the purpose of obtaining high-resolution images. Especially for infrared imaging systems, due to the sensitivity problem, the pixels of infrared charge-coupled de...

AI Technical Summary

Problems solved by technology

It can effectively increase the resolution of the system, but the splicing process requires high requirements, the system structure is very complicated, and the design difficulty of the imaging lens is increased, the field of view is expanded, and it becomes an optical system with a large field of view, and the image quality of the lens is difficult to guarantee

[0006] 3. Redesign the shape and arrangement of the charge-coupled device pixels, adopt honeycomb arrangement and polygonal shape, so that more photosensitive units with the same photosensitive area as the traditional charge-coupled device can be placed on the unit area. There are still difficulties, and the resolution improvement is limited

The above algorithms have their own advantages and disadvantages, but a common problem is that the calculation amount of the algorithm is very large, and the calculation process requires a large storage space, which is very difficult for ordinary PCs or DSP processing systems, so it is necessary to There is still a certain distance to be applied to engineering practice

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