JPEG-LS

This article proposes three methods for parallelizing the compression of video streams from Earth surface scanners installed on microsatellites. The core innovation lies in the application of vertical, horizontal, and block-based segmentation of the input stream to enable scalable and high-throughput image compression. The study establishes a quantitative relationship between video stream intensity and satellite parameters, and also determines the required number of compression cores based on the satellite's characteristics and the performance of a single core.

The article explores the possibilities of implementing the JPEG-LS image compression algorithm on Field Programmable Gate Arrays (FPGA) for processing monochrome video streams from Earth surface scanners. A comparison of software implementations of the algorithms, their compression ratio, and execution time is conducted. Methods for improving FPGA performance are considered, using parallel data processing and optimized data structures to accelerate compression and decompression processes.

Features of construction of devices for compression of lossless images are considered. The study of the features of the construction allows you to fully understand the principles of these devices and the methods of compression, which underlie their work. JPEG-LS method and CCSDS121.0-B-2 standard are chosen as ways of compression of lossless images. The implementation of these methods with different types of architectures on modern FPGAs is considered. A comparison of the results of the implemented nodes on the FPGA.

The features of devices for monochrome images lossless compression by JPEG-LS method in modern element base are discussed. Capabilities of Vivado package (Xilinx) for JPEG-LS algorithm C to suitable for implementation in FPGAs VHDL-descriptions transformation were tested and described. C language structures, which can not be processed by specified means and possible circumvention of such structures were defined.

The features of devices for monochrome images lossless compression by JPEG-LS method in modern element base are discussed. Capabilities of Vivado package (Xilinx) for JPEG-LS algorithm C to suitable for implementation in FPGAs VHDL-descriptions transformation were tested and described. C language structures, which can not be processed by specified means and possible circumvention of such structures were defined.