BIDIRECTIONAL VIDEO IMAGE COMMUNICATION QUALITY CONTROL SYSTEM, USER TERMINAL, QUALITY CONTROL SERVER, AND PROGRAM

摘要

PROBLEM TO BE SOLVED: To provide a bidirectional video image communication quality control system capable of improving quality of services without giving adverse effect between each of services when a plurality of services including a video image streaming distribution service, and a bidirectional video communication service coexist, and to provide a user terminal, a quality control server, and a program.

SOLUTION: A video image streaming quality measuring unit 13 of the user terminal 100 acquires a quality parameter concerning a video image streaming, a bidirectional video image communication quality measuring unit 14 acquires a quality parameter concerning bidirectional video image communication, and an FEC quality measuring unit 21 acquires a quality parameter concerning error correction by an FEC encoder/decoder 20 and a quality parameter concerning communication subjected to RTP encapsulation. The reception rate judging unit 73 of a quality control server 70 receives the quality parameters to judge the reception rate of the user terminal. An encoding rate control unit 74 controls an encoding rate held in the user terminal in accordance with an instruction from the unit 73.

COPYRIGHT: (C)2006,JPO&NCIPI