Digital Cosine Transform of JPEG Based on FPGA
XU Chang-yuan · Xihua Daxue xuebao. Zhexue shehui kexue ban · 2007
This paper presents the Digital Cosine Transform in JPEG image compression based on FPGA.Through improving algorithms and optimizing structures,in conditions of efficient use of hardware resource,the utility of the parallel algorithm is exploited more efficiently.A multiplication based on parallel LUT(Look up Table) is designed.The problem of time parallel is solved using pipeline optimization algorithm,so that the speed of DCT is accelerated.The design is synthesized in logic and simulated for function and timing estimation using EDA software.The result of synthesis and simulation indicate that the design can give a better performance in speed and resource using with less hardware resource and a higher frequency,and can meet the requirement of real-time application for JPEG image processing.