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Research on Internet-based real-time collaborative image editing systems

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4 Author(s)
Xianghua Xu ; Coll. of Comput. Sci., Zhejiang Univ., Hangzhou, China ; Chun Chen ; Jiajun Bu ; Yong Li

We present concurrency control techniques used in Collaborative IMage Editing Systems (CIMES). CIMES adopts a replicated architecture: shared pattern images are replicated at the each participant site; so image operations are performed at local sites immediately and then propagated to remote sites. An image operation transformation algorithm is proposed to resolve the image editing conflicting caused by multi-user collaborative editing and to maintain the consistency of shared image. Then, an image undo/redo algorithm is presented to support group undo in the same editing sessions. Finally, a distributed locking mechanism is used as a concurrency control tool in some collaborative phase to prohibition of shared updating to a region. All of these are realized in CIMES.

Published in:

Computer Supported Cooperative Work in Design, 2004. Proceedings. The 8th International Conference on  (Volume:2 )

Date of Conference:

26-28 May 2004