Two-dimensional image processing without transpose
Two-dimensional image processing without transpose
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DOI：
10.1109/icosp.2004.1452697
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发表时间：
2004
期刊：
影响因子：
--
通讯作者：
Tu Baozhao;Li Dong;Han Cheng-de
中科院分区：
文献类型：
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作者：
Tu Baozhao;Li Dong;Han Cheng-de
通过在FPGA中实现一个特殊的SDRAM控制器，实现对图像数据的行、列两个方向的高效访问，并在软件中采用一定的访问规则，保证缓存的一致性，从而解决了大尺寸二维图像处理中的该高速缓存效率问题。与传统的转角（矩阵转置）方法相比，该设计不需要额外的转角存储器，从而减少了硬件资源的消耗，同时跳过了转角阶段，缩短了处理时间。
This paper provides a new solution to the cache efficiency problem in processing large two-dimensional image at both row and column directions, by implementing a special SDRAM controller in FPGA which can access image data at both directions efficiently and by employing some accessing rules in software which can guarantee cache coherence. By contrast with traditional corner turn (transpose of matrix) method, our design consumes less hardware resources by making additional corner turn memory unnecessary, and has the processing time shortened by skipping the comer turn phase.