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Lossy compression for images and signals by identifying regions with low density of features
Lossy compression for images and signals by identifying regions with low density of features
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机译:通过识别特征密度低的区域来对图像和信号进行有损压缩
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摘要
A device, system, and method perform lossy compression for images and signals by identifying regions with a low density of features. The method performed at a sensor communicatively connected to a receiver includes capturing sensor data. The method includes selecting a position in the sensor data. The method includes determining a local entropy of the position based on an entropy operation that indicates a probability distribution of a plurality of available values. When the local entropy is below a predetermined threshold, the method includes applying a first pre-processing operation to the position that averages features included in the position. The method includes transmitting the pre-processed sensor data corresponding to the position to the receiver.
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