根据人体视觉系统（HVS）的特点，提出了一种固定码率压缩算法。
A CBR (constant bit rate) coding algorithm based on traits of human visual system (HVS) is proposed.
根据人体视觉系统的特点，对双节点联合跟踪的系统模型进行了改进，提出了移动节点下的系统模型，并指出了系统模型的特点和实现难点。
Based on human vision system we bring forward the system model with moving node, and describe the character and point out the difficulty in realization.
根据人体视觉系统的特点，对双节点联合跟踪的系统模型进行了改进，提出了移动节点下的系统模型，并指出了系统模型的特点和实现难点。
Based on human vision system we bring forward the system model with moving node, and describe the character and point out the difficulty in realization.
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