一种ARGB数据无损压缩解压算法的FPGA设计

FPGA Design of Lossless Compression and Decompression Algorithm for the ARGB Data

提出了一种ARGB数据的无损压缩优化算法以及FPGA实现方法;为了避免对整个文件的解压和压缩,采用了Deflate算法的相关方法对图像按块进行压缩和解压,极大提高了存储器的访问效率;利用了Deflate算法对小块进行压缩,发挥了Deflate中LZ77压缩的Huffman压缩技术来优化压缩算法;通过VIVADO HLS将算法实现成FPGA电路,采用多张图片进行了实际应用,证实了算法的有效性,并分析了其功耗和时序信息。

A lossless compression optimization algorithm for the ARGB data and its FPGA implementation method are proposed.In order to avoid the decompression and compression of the whole file,the related methods of Deflate algorithm are used to compress and decompress the image block by block,which greatly improves the access efficiency of the memory.The Deflate algorithm is used to compress small blocks,and the Huffman compression technology of LZ77 compression in the Deflate algorithm is fully utilized to optimize the compression algorithm.The algorithm is achieved as an FPGA circuit through the VIVADO HLS tool,and the practice application with multiple images proves the effectiveness of the algorithm,and analyzes its power consumption and timing information.