An image segmentation algorithm based on simplified pulse coupled neural network(PCNN) is proposed,which aims to overcome the over or under segmentation in some traditional segmentation algorithms for structured light images with large size and uneven illumination,and captured by CCD.Block processing for structured light images was used to reduce the influence of illumination on segmentation quality.Each block-image was automatically segmented by the improved PCNN.The PCNN dynamically adjusted p...