In wireless environment without assurance of quality of service

the video stream compressed by conventional video compress standards is vulnerable

especially in intra coded frame. So it is necessary to make modification on structure of conventional video stream in order to enhance its error resilience performance inwireless environment. In this paper

one method is proposed to improve robustness of intra coded frame in wireless transmission

it firstly analyze the sensitivity to error propagation of different segment in video stream when there are channelbit errors. And thenwith this analysis results and respective role of different segments of video stream on reconstruction of intra coded frame

important information for intra coded frame is determined. Finally

the proposed method exploits protection

extraction and aggregation of determined important information in intra coded frame tomitigate the extent of error propagation inside frame reference on traditional data partition error resilience algorithms. Experimental resultswithH. 263+ baseline tested stream through addictive Gauss white noisewireless channel show that the proposed method outperforms reference method in subjective and objective quality obviously with little increasing of coding overhead and computation.