Stationary Properties of Random Direction Models

Distributed Source Coding (DSC) is one of the most promising collaborative information processing technologies for Wireless Video Sensor Networks (WVSN) because its low complexity video encoder is suitable for resource limited sensor nodes. Generic sensor nodes with limited energy are restricted with computation and communication capabilities, therefore, traditional video coding such as MPEG-4 or H.264 is too complicated for sensor nodes. In this paper, the concept and the predominant methods of distributed source coding are introduced briefly. Moreover, how to apply distributed source coding appropriately in multi-source multi-camera wireless video sensor network is investigated. Traditional distributed source coding technology is asymmetric but sensor nodes in WVSN are homogenous, therefore, symmetric distributed source coding appropriate for multi-camera wireless video sensor networks is discussed. Moreover, multi-source symmetric distributed source coding is investigated because there are a mass of sensor nodes in the WVSN. As we known, it is the first exploration about multi-source distributed source coding technology.

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