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提出了一种快速有效的二维小波变换超大规模集成电路(VLSI).该结构是一种4输入/4输出直接型结构,行列滤波同时运行,包含4个行滤波单元和1个列滤波单元,行滤波单元通过使用折叠结构减少硬件资源,列滤波单元在每个时钟周期,可同时处理4路行滤波的结果.整个结构无需额外的缓存,数据处理无需停顿.将之与其他类似结构进行了比较,结果表明本结构系统响应快、输出速率高,适应于高速运算等应用场合.
A fast and effective two-dimensional VLSI (VLSI) is proposed.The VLSI architecture is a 4-input / 4-output direct-connect architecture with parallel operation of row and column filtering, including 4 rows of filtering units and 1 columns of filtering units , The line filter unit reduces the hardware resources by using the folded structure, and the column filter unit can process the result of 4 line filters at the same time per clock cycle. The entire structure requires no extra buffering and the data processing needs no pause. The results show that the structure of the system fast response, high output rate, suitable for high-speed computing and other applications.