H.264视频压缩标准是由联合视频组(JVT：joint video team)开发的一个新的数字视频编码标准。该标准引入了当前视频编码中的许多新技术, 使得在相同的重建图像质量下，其编码效率比H.263和MPEG-4高50%。 本文以帧内预测编码部分为研究内容，基于H.264标准中的Baseline档次，在matlab平台上编写帧内编码器与解码器，对亮度图像进行预测编码，实现了帧内4x4、帧内16x16的全部预测模式，并对帧内编码技术作出客观评价。通过对编解码器的实现，能更深刻的理解帧内编码的技术，平台的建立对以后的继续研究提供了方便。

H.264 is a new video compression standard being jointly developed by Joint Vedio Team. It adopts so many new techniques that it achieved up to 50% in bit rate saving compared with H.263 and MPEG-4 considering the rebuilding image quality. This paper presents a thorough study of the intra-prediction. Based on the Baseline Profile used in the H.264, the research is to compile intra encoder and intra decoder on Matlab Process. luminance samples are coded with all kinds of intra 4x4 and intra 16x16 prediction modes. This paper also extends objective evaluation on intra encoder technique. Through the realization of codecs, more profound understanding of the intra-coding technology, the establishment of the platform continue to study beyond providing a convenient.