An example method, performed by an edge data network, of transmitting image content, includes obtaining azimuth information and focal position information from an electronic device connected to the edge data network, and generating a filtered first partial image by performing filtering on a first partial image corresponding to the azimuth information by using one filter determined based on the focal position information.

An embodiment of the present description provides a decoding method and device for a quantization block as well as an electronic device. The method comprises: determining the scanning order of quantization coefficients in the quantization block, initializing the scanning position of the quantization coefficients, and decoding a run-length; adding a subscript value of the current scanning position and the value of the run-length to obtain the scanning position of nonzero coefficients, decoding the values of the nonzero coefficients; judging whether the subscript value of the nonzero coefficients is the maximum subscript value, if yes, ending the decoding of the quantization block; if not, judging whether there are undecoded nonzero coefficients, and if there are no undecoded nonzero coefficients, ending the decoding of the quantization block; if there are undecoded nonzero coefficients, adding 1 to the subscript value of the decoded nonzero coefficients to obtain an updated current scanning position, taking the current scanning position as the initial scanning position to decode the next run-length until the decoding of the quantization block is completed. The technical solution of the present application can improve the decoding efficiency of quantization block.

An embodiment of the present description provides a decoding method and device for a quantization block as well as an electronic device. The method comprises: determining the scanning order of quantization coefficients in the quantization block, initializing the scanning position of the quantization coefficients, and decoding a run-length; adding a subscript value of the current scanning position and the value of the run-length to obtain the scanning position of nonzero coefficients, decoding the values of the nonzero coefficients; judging whether the subscript value of the nonzero coefficients is the maximum subscript value, if yes, ending the decoding of the quantization block; if not, judging whether there are undecoded nonzero coefficients, and if there are no undecoded nonzero coefficients, ending the decoding of the quantization block; if there are undecoded nonzero coefficients, adding 1 to the subscript value of the decoded nonzero coefficients to obtain an updated current scanning position, taking the current scanning position as the initial scanning position to decode the next run-length until the decoding of the quantization block is completed. The technical solution of the present application can improve the decoding efficiency of quantization block.

According to one embodiment of the present document, an in-loop filtering procedure in an image/video coding procedure may comprise a cross-component adaptive loop filtering procedure. CCALF, according to the present embodiment, can increase the accuracy of in-loop filtering.

According to one embodiment of the present document, an in-loop filtering procedure in an image/video coding procedure may comprise a cross-component adaptive loop filtering procedure. CCALF, according to the present embodiment, can increase the accuracy of in-loop filtering.

Encoding or decoding a picture part of video information can include using a refinement mode per block where the refinement mode can be based on a refinement parameter. The refinement mode can include a cross-component refinement that can be a cross-component chroma refinement. The refinement mode can include enabling selection per block of a refinement parameter where the refinement parameter can include one or more chroma refinement parameters included in a chroma refinement table.

Encoding or decoding a picture part of video information can include using a refinement mode per block where the refinement mode can be based on a refinement parameter. The refinement mode can include a cross-component refinement that can be a cross-component chroma refinement. The refinement mode can include enabling selection per block of a refinement parameter where the refinement parameter can include one or more chroma refinement parameters included in a chroma refinement table.

A method for decoding a video bitstream is disclosed. The method comprises: entropy decoding a first portion of a video bitstream, wherein first portion of video bitstream is associated with a video frame, thereby producing a first portion of decoded data; entropy decoding a second portion of video bitstream, wherein second portion of video bitstream is associated with video frame, thereby producing a second portion of decoded data, wherein entropy decoding second portion of video bitstream is independent of entropy decoding first portion of video bitstream; and reconstructing a first portion of video frame associated with video bitstream using first portion of decoded data and second portion of decoded data.

The present invention relates to an image information decoding method. The decoding method includes receiving a bit stream including a Network Abstraction Layer (NAL) unit that includes information related to encoded image, and parsing a NAL unit header of the NAL unit. The NAL unit header may not include 1 bit flag information that represents whether a picture is a non-reference picture or a reference picture in the entire bit stream during encoding.

The present invention relates to an image information decoding method. The decoding method includes receiving a bit stream including a Network Abstraction Layer (NAL) unit that includes information related to encoded image, and parsing a NAL unit header of the NAL unit. The NAL unit header may not include 1 bit flag information that represents whether a picture is a non-reference picture or a reference picture in the entire bit stream during encoding.