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- W2079282395 abstract "In a visual sensor network, a large number of camera nodes are able to acquire and process image data locally, collaborate with other camera nodes and provide a description about the captured events. Typically, camera nodes have severe constraints in terms of energy, bandwidth resources and processing capabilities. Considering these unique characteristics, coding and transmission of the pixel-level representation of the visual scene must be avoided, due to the energy resources required. A promising approach is to extract at the camera nodes, compact visual features that are coded to meet the bandwidth and power requirements of the underlying network and devices. Since the total number of features extracted from an image may be rather significant, this paper proposes a novel method to select the most relevant features before the actual coding process. The solution relies on a score that estimates the accuracy of each local feature. Then, local features are ranked and only the most relevant features are coded and transmitted. The selected features must maximize the efficiency of the image analysis task but also minimize the required computational and transmission resources. Experimental results show that higher efficiency is achieved when compared to the previous state-of-the-art." @default.
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- W2079282395 date "2014-10-01" @default.
- W2079282395 modified "2023-09-25" @default.
- W2079282395 title "Local feature selection for efficient binary descriptor coding" @default.
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- W2079282395 doi "https://doi.org/10.1109/icip.2014.7025818" @default.
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