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引用次数: 3
摘要
在H.264/AVC视频解码系统中，内存存储是至关重要的功耗因素。在本文中，我们利用三层内存层次结构来打破数据依赖，减少对外部内存的访问次数。此外，我们采用线像素预估(LPL)方案，在功耗和内存成本之间做出妥协。实验结果证明，与同类解码器相比，在不利用内存层次结构的情况下，可以实现约50%的内存功耗降低(to Wei Chen et al.， 2005和Hu et al.， 2004)。
Memory-Hierarchy-Based Power Reduction for H. 264/AVC Video Decoder
Memory storage is crucial power factor in H.264/AVC video decoding system. In this paper, we exploit three-level of memory hierarchy to break the data dependency and reduce the number of access for external memory. Further, we apply line-pixel-lookahead (LPL) scheme to make a compromise between power consumption and internal memory cost. Experimental results prove that about 50% of memory power reduction can be achieved as compared to comparable decoders without exploiting memory hierarchy (To Wei Chen et al., 2005 and Hu et al., 2004)
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