Yicheng Ouyang, Xianglong Wang, Gang Shi, Lei Chen, F. An
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引用次数: 1
Abstract
Joint Photographic Experts Group (JPEG) is one of the most advanced compression formats for still images. However, JPEG is still limited and inefficient in real-time image processing and hardware implementation. This paper presents a dynamic JPEG CODEC (the encoder and decoder) to compress the frame storage. Based on the pipeline structure, the system uses ping-pong buffers to support the circuit across two clock domains. In addition, through dynamically adjusting the quantization table, the frame storage compression can fluctuate around 80% with high quality. Also, the simplification of compression decreases the initialization time of the decoder. The proposed word can yield a reduction of the frame storage of 76.60% and an improvement of the latency of 77.10% compared to the baseline JPEG CODEC.
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