Abstract
H.264/AVC is an emerging video coding standard that provides about 50% bit rate reduction relative to the performance of prior standards at the same quality level. However, as the resolution of video coding applications becomes high, a large amount of data is required for processing within a bounded time. For cost reason, they are usually stored in slow external DRAM, and thus resulting in high memory bandwidth requirements and system bottleneck. This thesis proposes an efficient dictionary-based compression and de-compression algorithm for display frames and presents its implementation in an H.264 decoder. Simulation result shows that the proposed algorithm achieves 54% of compression ratio in 1080HD resolution and 34% of total memory traffic reduction on average. Hence, the bus only has to run at 57 MHz to support 1080HD real-time decoding.