METHOD AND SYSTEM FOR EXCHANGE CODED PROXY

摘要

PROBLEM TO BE SOLVED: To provide a method and device and system for dynamically adjusting an exchange coding parameter for increasing the merits of exchange coding. SOLUTION: An appropriating method is designated for processing network characteristics and the variety of the size of an image to be exchange-coded. Also, the trade-off of quality and size can be adjusted for each image or client 230 by an exchange coded proxy. An appropriate exchange coder selects a different parameter for each object for improving performance. Moreover, policy decision is operated by a general frame work under the consideration of valid band width, image contents and type, and user selection. Also, feedback related with the selection of the optimal coding parameter is generated for a user.