10 results about "Skip mode" patented technology

A method of decoding video data includes receiving, from bitstream, video data corresponding to a non-skip mode coded block; and determining a parameter set associated with the non-skip mode coded block. In accordance with a determination that the parameter set includes information that satisfies different conditions, the method further includes receiving a first syntax element, a second or a third syntax element from the bitstream, the first syntax element is received and the first syntax element has a first value, the third syntax element is received. The method further includes decoding the non-skip mode coded block based on palette mode when the first syntax element has a first value and the third syntax element has the first value; and decoding the non-skip mode coded block based on intra prediction mode when the first syntax element has the first value and the third syntax element has a second value.

Disclosed are an image encoding method using a skip mode and a device using the method. The image encoding method may comprise the steps of: judging whether there is residual block data of a prediction target block on the basis of predetermined data indicating whether residual block data has been encoded; and, if there is residual block data, restoring the prediction target block on the basis of the residual block data and an intra-screen predictive value of the prediction target block. Consequently, encoding and decoding efficiency can be increased by carrying out the encoding and decoding of screen residual data only for prediction target blocks where there is a need for a residual data block in accordance with screen similarity.

An example method includes receiving a video bitstream comprising a plurality of blocks, including a current block and parsing a first flag indicating that the current block is coded in a skip mode. The method also includes parsing a second flag indicating whether the skip mode is a direct skip mode and, when the skip mode is the direct skip mode, reconstructing the current block in accordance with the direct skip mode. When the skip mode is not the direct skip mode, at least one of a motion vector predictor indicator and a skip transform flag is parsed, and the current block is reconstructed according to the at least one of the motion vector predictor indicator and the skip transform flag.

A method of encoding video data includes obtaining a parameter set associated with a non-skip mode coded block and signaling a first syntax element, a second syntax element or a third syntax element in a bitstream. The method further includes setting the first syntax element has a first value and the third syntax element has the first value on a condition that the non-skip mode coded block is coded based on palette mode; setting the first syntax element has the first value and the third syntax element has a second value on a condition that the non-skip mode coded block is coded based on intra prediction mode; and transmitting the non-skip mode coded block via the bitstream.

Systems and methods are provided for enabling a smart automatic skip mode during playback of a content item. A content item is generated for output at a first time at a computing device, and input associated with navigating the content item is received. Metadata associated with a plurality of segments of the content item is identified and based on the input and the metadata, a segment to skip is identified. The segment to skip is skipped, and the content item is generated for output at a second time.

Methods and apparatus for parsing friendly and error resilient merge flag coding in video coding are provided. In some methods, in contrast to merging candidate list size dependent coding of the merge flag in the prior art, a merge flag is always encoded in the encoded bit stream for each inter-predicted prediction unit (PU) that is not encoded using skip mode. In some methods, in contrast to the prior art that allowed the merging candidate list to be empty, one or more zero motion vector merging candidates formatted according to the prediction type of the slice containing a PU are added to the merging candidate list if needed to ensure that the list is not empty and / or to ensure that the list contains a maximum number of merging candidates.

To provide an apparatus for increasing the coding efficiency by using common signalization within a bitstream with regard to both activation of merging and activation of a skip mode.SOLUTION: In an encoder 10, a common flag signalizes whether coding parameters associated with a current sample set 40 are to be set according to a merge candidate or to be retrieved from a bitstream 30, and whether the current sample set of a picture 20 is to be reconstructed based only on a prediction signal depending on the coding parameters associated with the current sample set without any residual data, or to be reconstructed by refining the prediction signal depending on the coding parameters associated with the current sample set by means of residual data within the bitstream 30.SELECTED DRAWING: Figure 1

The invention provides a coding method for weakening chromaticity smear. The coding method comprises the following steps: S0, inputting a 32 * 32 block or a 16 * 16 block or an 8 * 8 block; s1, motion judgment; s2, judging whether the block is a motion block- If yes, the step S3 is carried out, and if not, the process is ended; s3, traversing the coeff of the non-skip mode; s4, judging whether coeff is not all 0- If yes, the step S5 is carried out, and if not, the step S6 is carried out; s5, calculating the sad of each 4 * 4 block of the skip mode recon and the non-skip mode recon of the uv component; obtaining the maximum value sadmax of the uv component sad; determining whether sadmax > = Recsadthrd0- If yes, forbidding is carried out, the skip is disable, and the non-skip is disable; if not, further judging whether sadmax is greater than or equal to recsadthrd1-or not If yes, forbidding is carried out, and skip: disable is carried out; if not, ending; s6, calculating sad of each 4 * 4 block raw and recon of the uv component; obtaining the maximum value sadmax of the uv component sad; determining whether sadmax > = rawsadthrd0- If yes, forbidding is carried out, the skip is disable, and the non-skip is disable; and if not, ending.

Methods and apparatus for parsing friendly and error resilient merge flag coding in video coding are provided. In some methods, in contrast to merging candidate list size dependent coding of the merge flag in the prior art, a merge flag is always encoded in the encoded bit stream for each inter-predicted prediction unit (PU) that is not encoded using skip mode. In some methods, in contrast to the prior art that allowed the merging candidate list to be empty, one or more zero motion vector merging candidates formatted according to the prediction type of the slice containing a PU are added to the merging candidate list if needed to ensure that the list is not empty and / or to ensure that the list contains a maximum number of merging candidates.