A hybrid BTC/ADCT video codec simulation bench
Stefan Horbelt, Jon Crowcroft · 1996
: We compare the performance of video compression algorithms in terms of compression ratio, video distortion and computation time in order to study the feasibility of a real time software videophone for 64 kbits/s channels, with flexible user defined compression methods. We can combine and adjust the compression algorithms to the required bandwidth and video quality. We introduce the double logarithmic CORT Diagram, which is a novel, visual method to combine and evaluate video compression algorithms. The implemented algorithms are subsampling, block truncation coding (BTC), adaptive discrete cosine transform (ADTC) and conditional refreshment. 1 Introduction We compare the performance of video compression algorithms in terms of compression ratio, video distortion and computation time in order to study the feasibility of a real time software videophone for 64 kbits/s channels, with flexible user defined compression methods. Our simulation bench allows us to combine interactively diffe...