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Energy harvesting is required for the uninterrupted operation of Wireless Visual Sensor Networks (WVSNs). Solar energy is considered one of the effective energy harvesting sources for WVSN applications. In this paper, we propose an efficient energy management scheme for solar-powered WVSNs. The proposed scheme aims to maximize the overall quality of captured video while maximizing the network operation...
As the video resolution increases, high computational complexity of the fractional motion estimation (FME) introduces difficulty to meet real-time constraints in a video coding. In this paper, we proposed a single-pass FME algorithm and its architecture with low hardware cost and negligible loss of the image quality. The proposed algorithm directly searches only surroundings of both the predicted...
This paper proposes a motion estimation scheme to reduce the computational complexity of multilayer motion estimation for scalable video coding. Based on the result of the motion estimation of the lower resolution layer referred to as base layer, we developed a new approach for exploring the search range of the enhancement layer with high coding efficiency. This approach is based on the activity defined...
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