图形压缩 meaning in English

picture compression

In the multimedia data transmission part of this project , we take different transmission methods according to the characteristics of different multimedia information to deal with the multimedia data transmission . for the graph information , we take the method based on semantics
在多媒体数据传输方面，根据不同媒体信息的特性采用不同的压缩方式：对于图形信息采用基于语义的图形压缩；屏幕图像信息采用jpeg压缩；音频和视频采用microsoftdirectx技术实现。