本文为实现两维递归滤波提出了一种用于实时图象处理的新型数字滤波器结构。这种结构的时钟周期时间短或数据流通率大,与滤波器阶数无关。这种滤波器结构的特点是并行放置和管线传输,对其高速性能有帮助。滤波器在工作中不需要乘法器。使用标准集成电路和存贮器,新型滤波器能实时地以每秒30帧的电视扫描速率完成大小512×512象素的图象滤波。考虑了有限精度运算效应。从对定标和溢出问题的研究深深感到,选择适当的定标因子对在滤波器输出下获得足够的信噪比是很重要的。 In this paper, a new digital filter structure for real-time image processing is proposed to realize two-dimensional recursive filtering. This structure of the clock cycle time is short or large data flow rate, regardless of the filter order. This filter structure is characterized by parallel placement and pipeline transmission, its high-speed performance is helpful. The filter does not require a multiplier at work. Using standard integrated circuits and memory, the new filter performs image filtering of 512 x 512 pixels at a TV scan rate of 30 frames per second in real time. Considered the finite precision operation effect. From the research on calibration and overflow problems, it is very important to choose appropriate scaling factors to get enough signal-to-noise ratio at the output of the filter.