Video compression implementing resolution tradeoffs and optimization

摘要

Compression transforming video into a compressed representation (which typically can be delivered at a capped pixel rate compatible with conventional video systems), including by generating spatially blended pixels and temporally blended pixels (e.g., temporally and spatially blended pixels) of the video, and determining a subset of the blended pixels for inclusion in the compressed representation including by assessing quality of reconstructed video determined from candidate sets of the blended pixels. Trade-offs may be made between temporal resolution and spatial resolution of regions of reconstructed video determined by the compressed representation to optimize perceived video quality while reducing the data rate. The compressed data may be packed into frames. A reconstruction method generates video from a compressed representation using metadata indicative of at least one reconstruction parameter for spatial regions of the reconstructed video.

主权项

1. A video compression method for generating a compressed representation of input video, including the steps of:
(a) temporally partitioning the input video into pulses, each of the pulses comprising at least two frames of the input video, and for each region of a spatial partition of a frame of each of the pulses, generating at least two different candidate blended pixel sets, at least one of the candidate blended pixel sets including at least one of a temporally blended pixel determined from at least two frames of the input video and a temporally and spatially blended pixel determined from at least two frames of the input video; and (b) for said each region of the spatial partition for each of the pulses, selecting one of the candidate blended pixel sets for inclusion in the compressed representation.