| CPC H04N 19/88 (2014.11) [H04N 19/105 (2014.11); H04N 19/136 (2014.11); H04N 19/172 (2014.11); H04N 19/189 (2014.11)] | 15 Claims |
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1. A method of performing feature compression, the method being executed by at least one processor and comprising:
obtaining an input video;
obtaining a feature map corresponding to the input video, the feature map comprising a plurality of feature channels;
reordering the plurality of feature channels based on at least one characteristic of the plurality of feature channels;
compressing the reordered plurality of feature channels; and
generating an encoded bitstream based on the reordered and compressed plurality of feature channels,
wherein the at least one characteristic comprises a similarity of the plurality of feature channels,
wherein the similarity is determined based on a correlation coefficient between two feature channels of the plurality of feature channels,
wherein the correlation coefficient corresponds to a ratio between a covariance of the two feature channels and a product of standard deviations of the two feature channels, and
wherein the reordering comprises computing a total correlation coefficient for each feature channel of the plurality of feature channels, and ordering the plurality of feature channels based on the total correlation coefficient.
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