video emphasis
2.Then fundamental conceptions and algorithms on MPEG-4video coding are mainly described. Syntax and semantics of MPEG-4visual bitstream are analyzed,and then with an emphasis on the coding of vop,it presents the program flow of im-plementing the coding of vop.
4.The medical consultation system possesses its own characteristics such as the high quality image demanding, the more emphasis of the patient information than that of the doctor, so the R&D of the RT medical consultation system should have its own features but not completely borrow the frame of the video conference system.

