Workspace awareness is one of the key issues in real-time collaborative editing system, especially in bitmap-based graphic editing system. Because of the intrinsic characteristic of bitmap, the data stream need to be ...
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ISBN:
(纸本)0780381629
Workspace awareness is one of the key issues in real-time collaborative editing system, especially in bitmap-based graphic editing system. Because of the intrinsic characteristic of bitmap, the data stream need to be exchanged in the network will increase dramatically. On the other hand, different collaborators in one collaborative project may have different network environment. So it is irrational to deliver the same large data-stream to distinct receivers. In this paper, we propose a multi-level coding method, which encodes each bitmap operation into serveral different granularities. In addition, we also propose a self-adapted awareness model by combining the awareness model with network Qos. As a result, different collaborators receive different data-stream in different granularity.
This paper brings forward one concept of holographic storage of multi-level digital data at first. It is that each pixel includes more information than 1 bit, which means that a multi-level digital data image provides...
详细信息
ISBN:
(纸本)0819455989
This paper brings forward one concept of holographic storage of multi-level digital data at first. It is that each pixel includes more information than 1 bit, which means that a multi-level digital data image provides more information than a binary digital data image with the same pixels. So, the capacity will be increased with this technology Furthermore, some aspects of holographic storage of multi-level digital data, such as the multi-level coding, storage characters and the quality of the stored image are debated. Finally, we research this holographic storage technology by experiment.
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