摘 要 图象平滑是视频通信中差错恢复的“最后一道防线”，是重要的视频后处理技术之一，帧内图象平滑技术对帧内编码帧和无时域参考信息的情况具有重要的意义。本篇论文主要研究基于方向自适应内插的帧内图象平滑算法。本文首先介绍一种新的图象平滑方法-基于方向自适应内插的帧内图象平滑方法。然后通过 Matlab 进行实现，其中一部分代码采用可以被 Matlab 调用的 C 语言实现，软件具有良好的 GUI 界面。实验结果表明，本文实现的帧内图象平滑方法具有一定的实用意义。关键字：帧内图象平滑， 图像处理， Matlab，方向自适应内插ABSTRACTIn video communications ， error concealment is "the last line of defense" in error recover, which is one of the important video post-processing techniques. And intra-frame error concealment techniques are important to intra-frame coded frame when there is the non-time-domain reference information. This paper studies the intra-frame error-concealment techniques using orientation adaptive interpolation. Firstly，this paper introduces a new error concealment method-the intra-frame error concealment techniques using orientation adaptive interpolation. And then we implement it though Matlab, and part of the Matlab codes adopt the C language, which can be called by Matlab. The Matlab software has a good GUI interface. The experimental results show that, the proposed intra-frame error concealment method has some practical significance.Key words ： intra-frame error concealment；image processing; Matlab ，orientation adaptive interpolation.目 录第一章 绪 论.....................................11.1 研究背景及现状..............................................11.2 帧内图象平滑算法概述........................................11.3 本文结构.....................................................2第二章 理论基础..................................32.1 前向纠错编码................................................32.2 遇错重传...............................
