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New multi-DSP parallel computing architecture for real-time image processing 被引量:4
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作者 Hu Junhong Zhang Tianxu Jiang Haoyang 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2006年第4期883-889,共7页
The flexibility of traditional image processing system is limited because those system are designed for specific applications. In this paper, a new TMS320C64x-based multi-DSP parallel computing architecture is present... The flexibility of traditional image processing system is limited because those system are designed for specific applications. In this paper, a new TMS320C64x-based multi-DSP parallel computing architecture is presented. It has many promising characteristics such as powerful computing capability, broad I/O bandwidth, topology flexibility, and expansibility. The parallel system performance is evaluated by practical experiment. 展开更多
关键词 parallel computing image processing real-time computer architecture
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High performance reconfigurable hardware system for real-time image processing
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作者 赵广州 张天序 +2 位作者 王岳环 曹治国 左峥嵘 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2005年第3期502-509,共8页
A novel reconfigurable hardware system which uses both muhi-DSP and FPGA to attain high performance and real-time image processing are presented. The system structure and working principle of mainly processing multi-B... A novel reconfigurable hardware system which uses both muhi-DSP and FPGA to attain high performance and real-time image processing are presented. The system structure and working principle of mainly processing multi-BSP board, extended multi-DSP board are analysed. The outstanding advantage is that the communication among different board components of this system is supported by high speed link ports & serial ports for increasing the system performance and computational power. Then the implementation of embedded real-time operating systems (RTOS) by us is discussed in detail. In this system, we adopt two kinds of parallel structures controlled by RTOS for parallel processing of algorithms. The experimental results show that exploitive period of the system is short, and maintenance convenient. Thus it is suitable for real-time image processing and can get satisfactory effect of image recognition. 展开更多
关键词 MULTI-DSP fidd programmable gate arrays real-time image processing real time operating systems parallel structure.
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多DSP图像压缩实时并行处理系统 被引量:13
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作者 赵峰 袁东风 +1 位作者 张海霞 许廷发 《光学精密工程》 EI CAS CSCD 北大核心 2007年第9期1451-1455,共5页
针对图像实时高速压缩、传输的需求,设计了一套新型的多DSP图像压缩实时并行处理系统。选择整数CDF(2,2)双正交小波变换结合改进的SPIHT算法作为系统的实现方案,利用整数CDF(2,2)双正交小波变换实现图像变换,提高了运算速度,便于硬件实... 针对图像实时高速压缩、传输的需求,设计了一套新型的多DSP图像压缩实时并行处理系统。选择整数CDF(2,2)双正交小波变换结合改进的SPIHT算法作为系统的实现方案,利用整数CDF(2,2)双正交小波变换实现图像变换,提高了运算速度,便于硬件实现。根据各个子图像的不同特点,改变扫描路线,采用四路并行分块处理的方法对SPIHT算法加以改进,提高编码速度,降低了编解码过程的运算复杂度和时间消耗。根据系统的实时性要求,使用四片DSP处理器构建了一个兼有紧耦合并行系统和松耦合并行系统优点的图像压缩实时并行处理系统。仿真实验表明,基于并行系统的图像压缩算法与传统的压缩算法相比,压缩的峰值信噪比(PSNR)提高了10%左右,压缩时间达到30 ms。 展开更多
关键词 图像压缩 多DSP 实时并行处理系统
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