色彩空间转换器的结构改进及量化误差分析  

An Architecture Improvement and Quantized Error Analysis of Color Space Converter

作　　者：赵大猷[1] 郭炜[1] 

机构地区：[1]上海交通大学微电子学院,上海200240

出　　处：《微电子学与计算机》2007年第5期96-99,共4页Microelectronics & Computer

基　　金：国家"863"计划项目(2003AA1Z1350)

摘　　要：根据一种基于分布式算法的通用色彩空间转换方法,优化了色彩空间转换器的硬件结构,并分析了在硬件实现上的量化误差。该结构以流水方式实现,具有较小的延时和较高的数据吞吐率,可以完全满足对色彩空间实时处理的需要。在可接受的误差范围内通过选取适当的小数位数,硬件实现的面积可减小。This paper proposes an improvement architecture of distributed arithmetic-based color space converter, and analyses the quantized error of this architecture. This architecture is pipelined, with low latency and high data throughputs, by which the real-time color space conversion can be implemented easily. By choosing proper fractional bit length under acceptable error range, the hardware area of proposed architecture can be reduced by 25%.

关 键 词：分布式算法 色彩空间转换 量化误差 

分 类 号：TP31[自动化与计算机技术—计算机软件与理论]