MEDIAN FILTERING CIRCUITS

摘要

The circuit comprises the video camera(1) generating the analog signals. The A/D converter converts the analog signals into the digital video signals which is stored sequentially in the video buffer memory(30). The image preprocessing means(40) has the window circuit(31) selecting the 3x3 pixels from the video buffer memory(30) . The sort circuit(32) sorts the selected 9 pixels in order to acquire median value being transfered to the buffer memory(50) for real time processing.