视频图像缩放的设计及实现  

Design and implementation of video image-scaling module

作　　者：汪颖[1] 陈涛[1] 王维东[1] 张明[1] 

机构地区：[1]浙江大学信息与电子工程系,浙江杭州310027

出　　处：《电视技术》2004年第6期36-38,共3页Video Engineering

摘　　要：介绍了应用于视频处理芯片的图像缩放(Scaling)模块。该模块利用可变大小的窗口滤波插值进行图像像素重采样,能同时适用整数和分数缩放比例的图像缩放。算法是硬件可实现的,图像缩放质量好,硬件成本低。具有图像缩放功能的芯片可用于液晶电视和其它需要图像缩放的各类数字显示器中。The paper introduces the image-scaling module for video processing chip. The module is designed for both integral and fractional scaling ratios and utilizes variable filter window for calculating pixels of a scaled image to realize pixel re-sampling. The algorithm is implemented, and can achieve fine image quality with lower hardware cost. The chip with image scaling function will be used in LCD TV or various other digital display devices.

关 键 词：视频处理 图像缩放 滤波窗口 图像分辨率 

分 类 号：TN941.1[电子电信—信号与信息处理]