KEYWORDS: Image resolution, JPEG2000, Image compression, Image quality, Picture Archiving and Communication System, Data modeling, Medical imaging, Telecommunications, Personal digital assistants, Databases
The demand for sharing medical information has kept rising. However, the transmission and displaying of high
resolution medical images are limited if the network has a low transmission speed or the terminal devices have limited
resources. In this paper, we present an approach based on JPEG2000 Interactive Protocol (JPIP) to browse high
resolution medical images in an efficient way. We designed and implemented an interactive image communication
system with client/server architecture and integrated it with Picture Archiving and Communication System (PACS). In
our interactive image communication system, the JPIP server works as the middleware between clients and PACS
servers. Both desktop clients and wireless mobile clients can browse high resolution images stored in PACS servers via
accessing the JPIP server. The client can only make simple requests which identify the resolution, quality and region of
interest and download selected portions of the JPEG2000 code-stream instead of downloading and decoding the entire
code-stream. After receiving a request from a client, the JPIP server downloads the requested image from the PACS
server and then responds the client by sending the appropriate code-stream. We also tested the performance of the JPIP
server. The JPIP server runs stably and reliably under heavy load.
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