3results about How to "Improve subjective quality" patented technology

The application discloses a target distance adaptive image compression method and an image decompression method, wherein the image compression method comprises a training process and an inference process; the training process further comprises depth information extraction, data preprocessing and model training; the depth information extraction takes an image containing a close-range target as input, uses a depth estimation network to extract a depth value corresponding to each pixel from the image, and outputs a single-channel depth map containing the depth value, the resolution of the depth map being the same as that of the input image; the data preprocessing randomly divides images used for training into smaller image blocks, and divides a depth map obtained through the depth information extraction process into small blocks corresponding to the images; the model training performs training on an image compression network, takes the cut image blocks as input, processes the image blocks through a neural network, and outputs corresponding reconstructed image blocks; and the inference process performs image compression.

A method for obtaining a current block of a motion compensated prediction sample is provided. The method comprises selecting (s902) a motion vector from a set of candidate motion vectors, the set of candidate motion vectors comprising a first candidate motion vector and a second candidate motion vector. Selecting a motion vector from a set of candidate motion vectors includes calculating a first misaligned distortion value for a first candidate motion vector. Calculating the first misaligned distortion value for the first candidate motion vector is based on a difference in sample values on a boundary between the first neighboring block and the current block. The method comprises using (s904) the selected motion vector to generate a block of motion compensated prediction samples.

An audio signal processing device comprises a discontinuity detector configured to determine an occurrence of a discontinuity from a sudden increase of an amplitude of decoded audio obtained by decoding the first audio packet which is received correctly after an occurrence of a packet loss, and a discontinuity corrector for correcting the discontinuity of the decoded audio.