A Scalable Video Coding (SVC) process is provided for scalable video coding that takes into account color gamut primaries along with spatial resolution. The process provides for re-sampling using video color data obtained from an encoder or decoder process of a base layer (BL) in a multi-layer system to enable improved encoding and decoding in an enhancement layer (EL) or higher layers taking into account color conversion between layers. Examples of applicable SVC include MPEG-4 Advanced Video Coding (AVC) and High Efficiency Video Coding (HEVC). With the SVC process, video data expressed in one color gamut space can be used for prediction in encoding with a possibly different color space, and accommodation for different spatial resolution and bit-depth can be made as well.

A Scalable Video Coding (SVC) process is provided for scalable video coding that takes into account color gamut primaries along with spatial resolution. The process provides for re-sampling using video color data obtained from an encoder or decoder process of a base layer (BL) in a multi-layer system to enable improved encoding and decoding in an enhancement layer (EL) or higher layers taking into account color conversion between layers. Examples of applicable SVC include MPEG-4 Advanced Video Coding (AVC) and High Efficiency Video Coding (HEVC). With the SVC process, video data expressed in one color gamut space can be used for prediction in encoding with a possibly different color space, and accommodation for different spatial resolution and bit-depth can be made as well.

A method of video processing by a video processor includes receiving a first syntax element in a coded video bitstream. The first syntax element can be a high level syntax element and indicate whether a height of each of a plurality of pictures in a video sequence of the coded video bitstream is equal to or larger than a width of the respective picture in the video sequence of the coded video bitstream. The pictures in the video sequence of the coded video can be processed in an orientation that is determined according to the first syntax element indicating whether the height of each of the pluralty of pictures in the video sequence of the coded video is guaranteed to be equal to or larger than the width of the respective picture in the video sequence.

A region of interest (ROI) video request processing method and apparatus, where the method includes obtaining an ROI video request sent by a receiving device; selecting a first proximity ROI video from proximity ROI videos, where the proximity ROI videos are generated ROI videos that include at least a partial region in a target region indicated by the ROI video request; and sending the first proximity ROI video to the receiving device. According to the embodiments, the ROI video request can be met without consuming an encoder resource to break through limitation caused by an encoder resource amount to a quantity of ROI video requests that can be simultaneously met by the sending device.

Disclosed herein is a method of decoding an image. The method includes generating an inter prediction block by performing inter prediction with respect to a current block, generating an intra prediction block by performing intra prediction with respect to the current block, determining a first weight and a second weight, and generating a final prediction block by respectively applying the first weight and the second weight to the inter prediction block and the intra prediction block. The generating of the intra prediction block includes generating the intra prediction block using a predefined intra prediction mode.

Disclosed herein is a method of decoding an image. The method includes generating an inter prediction block by performing inter prediction with respect to a current block, generating an intra prediction block by performing intra prediction with respect to the current block, determining a first weight and a second weight, and generating a final prediction block by respectively applying the first weight and the second weight to the inter prediction block and the intra prediction block. The generating of the intra prediction block includes generating the intra prediction block using a predefined intra prediction mode.

An image encoding method including: a constraint information generating step of generating tile constraint information indicating whether or not there is a constraint in filtering on boundaries between adjacent tiles among a plurality of tiles obtained by dividing a picture, and storing the tile constraint information into a sequence parameter set; and a filter information generating step of generating, for each of the boundaries, one of a plurality of filter information items respectively indicating whether or not filtering is executed on the boundaries, and storing the plurality of filter information items into a plurality of picture parameter sets, wherein, in the filter information generating step, the plurality of filter information items which indicate identical content are generated when the tile constraint information indicates that there is the constraint in the filtering.

An image encoding method including: a constraint information generating step of generating tile constraint information indicating whether or not there is a constraint in filtering on boundaries between adjacent tiles among a plurality of tiles obtained by dividing a picture, and storing the tile constraint information into a sequence parameter set; and a filter information generating step of generating, for each of the boundaries, one of a plurality of filter information items respectively indicating whether or not filtering is executed on the boundaries, and storing the plurality of filter information items into a plurality of picture parameter sets, wherein, in the filter information generating step, the plurality of filter information items which indicate identical content are generated when the tile constraint information indicates that there is the constraint in the filtering.

An image encoding apparatus based on a system on chip (SoC) which encodes a residual block of a current block including a first value calculator configured to calculate a first value for the residual block in a space domain, a comparator configured to decide whether to transform the residual block into a transform domain according to a size of the first value, and a transform unit configured to transform the residual block into the transform domain according to a decision on whether to transform.

An image encoding apparatus based on a system on chip (SoC) which encodes a residual block of a current block including a first value calculator configured to calculate a first value for the residual block in a space domain, a comparator configured to decide whether to transform the residual block into a transform domain according to a size of the first value, and a transform unit configured to transform the residual block into the transform domain according to a decision on whether to transform.