Thesimulation of 3D Chinese ink painting style is an important research topic of theNon-Photorealistic Rendering(NPR). The traditional rendering methods are mostly confined to black and white ink. This paper puts forward a contour optimization of multi-channel 3D ink rendering model. Firstly, this method completes the inner coloring of multi-color ink by using the illumination model with the Alpha channel. Then it achieves contour stylization by means of the grid model expansion and texture map. Lastly, it hides the excess contours on the Alpha channel through the table priority algorithm of 3D depth sorting method for achieving the output of 3D Chinese ink rendering images. The experimental results demonstrate that the rendering effects under contour stylization provide more vivid ink effects. And the output of multi-channel images facilitates the following images procession as well.

A totally new architecture for clock recovery is delivered in the article.Very simple circuit is designed for time-to-voltage conversion,which transforms time error into voltage error.It is very convenient to use the transformed voltage for error detection.The voltage is processed by a self-adaptive peak value capture circuit to realize voltage comparison and clock self-recovery.The circuit is designed with SMIC 0.18μm process lib.Systemic circuit simulation was carried out and experiment results indicate that the designed circuit can work within a wide band of 50MHz to 150MHz,which meets the requirement of clock recovery in a VLSI system design.

本文介绍了一种基于视频处理的交通信息采集设备的设计方案.该方案利用摄像头采集交通视频,一方面通过DSP6203B进行分析处理得到各种实时交通信息,另一方面通过ADSP 2185进行图像的小波压缩.最后,交通信息和压缩图像通过嵌入式网络传输模块传送到交通控制中心.