# US 12,764,339 B2 · Signaling of picture header in video coding > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,764,339 B2 - Document ID: US12764339B2 - Status: Granted - Kind: B2 - Application number: 18/952,646 - Filed: 2024-11-19 - Published: 2025-05-08 - Granted: 2026-10-13 - Earliest claimed: 2019-09-24 - Assignees: Huawei Technologies Co., Ltd. - Applicants: Huawei Technologies Co., Ltd. - Inventors: Fnu Hendry; Ye-Kui Wang; Jianle Chen - Web page: https://patentgrep.com/patent/US12764339B2 ## CPC - H04N 19/70: characterised by syntax aspects related to video coding, e.g. related to compression standards - H04N 19/172: the region being a picture, frame or field - H04N 19/174: the region being a slice, e.g. a line of blocks or a group of blocks - H04N 19/188: {the unit being a video data packet, e.g. a network abstraction layer [NAL] unit} - H04N 19/44: Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder - H04N 19/46: Embedding additional information in the video signal during the compression process (H04N19/517, H04N19/68, H04N19/70 take precedence) - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION ## Abstract A method of decoding is provided. The method includes receiving a picture unit (PU) including zero or one picture header (PH) network abstraction layer (NAL) unit and only one coded picture; and decoding the only one coded picture from the PU to obtain a decoded picture. A corresponding method of encoding is also provided. The method includes generating a PU including zero or one PH NAL units and only one coded picture; encoding the PU into a video bitstream; and storing the video bitstream for communication toward a video decoder. ## Claims ### Claim 1 A non-transitory computer-readable storage medium storing instructions that, when executed by one or more processors, cause a video processing apparatus to: receive a picture unit (PU) including only one coded picture, wherein the PU comprises a set of network abstraction layer (NAL) units that contains zero picture header (PH) NAL units; and decode the only one coded picture from the PU to obtain a decoded picture. ### Claim 2 (depends on 1) The non-transitory computer-readable storage medium of claim 1, wherein the PU includes one or more video coding layer (VCL) NAL units. ### Claim 3 (depends on 1) The non-transitory computer-readable storage medium of claim 1, wherein the PU includes one or more non-video coding layer (VCL) NAL units. ### Claim 4 (depends on 1) The non-transitory computer-readable storage medium of claim 1, wherein the only one coded picture comprises one or more slices each including a slice header, and wherein each of the one or more slices is disposed in a video coding layer (VCL) NAL unit. ### Claim 5 (depends on 1) The non-transitory computer-readable storage medium of claim 1, wherein the PU includes decoding capability information (DCI) disposed in a DCI NAL unit. ### Claim 6 (depends on 1) The non-transitory computer-readable storage medium of claim 1, wherein the PU includes a video parameter set (VPS) disposed in a VPS NAL unit. ### Claim 7 (depends on 1) The non-transitory computer-readable storage medium of claim 1, wherein the PU includes a sequence parameter set (SPS) disposed in a SPS NAL unit and a picture parameter set (PPS) disposed in a PPS NAL unit. ### Claim 8 (depends on 1) The non-transitory computer-readable storage medium of claim 1, wherein the instructions cause the video processing apparatus to display the decoded picture on a display of an electronic device. ### Claim 9 A non-transitory computer-readable storage medium storing instructions that, when executed by one or more processors, cause a video processing apparatus to: generate a picture unit (PU) including only one coded picture, wherein the PU comprises a set of network abstraction layer (NAL) units that contains zero picture header (PH) NAL units; and encode the PU into a video bitstream. ### Claim 10 (depends on 9) The non-transitory computer-readable storage medium of claim 9, wherein the PU includes one or more video coding layer (VCL) NAL units. ### Claim 11 (depends on 9) The non-transitory computer-readable storage medium of claim 9, wherein the PU includes one or more non-video coding layer (VCL) NAL units. ### Claim 12 (depends on 9) The non-transitory computer-readable storage medium of claim 9, wherein the only one coded picture comprises one or more slices each including a slice header, and wherein each of the one or more slices is disposed in a video coding layer (VCL) NAL unit. ### Claim 13 (depends on 9) The non-transitory computer-readable storage medium of claim 9, wherein the PU includes decoding capability information (DCI) disposed in a DCI NAL unit. ### Claim 14 (depends on 9) The non-transitory computer-readable storage medium of claim 9, wherein the PU includes a video parameter set (VPS) disposed in a VPS NAL unit. ### Claim 15 (depends on 9) The non-transitory computer-readable storage medium of claim 9, wherein the PU includes a sequence parameter set (SPS) disposed in a SPS NAL unit and a picture parameter set (PPS) disposed in a PPS NAL unit. ### Claim 16 (depends on 9) The non-transitory computer-readable storage medium of claim 9, wherein the instructions cause the video processing apparatus to transmit the video bitstream toward a decoding device. ### Claim 17 A non-transitory computer-readable storage medium storing a bitstream that, when decoded by a coding device, is used by the coding device to generate a video, the bitstream comprising: a picture unit (PU) including only one coded picture; and a set of network abstraction layer (NAL) units in the PU, wherein the set of NAL units contains zero picture header (PH) NAL units. ### Claim 18 (depends on 17) The non-transitory computer-readable storage medium of claim 17, wherein the PU includes one or more video coding layer (VCL) NAL units. ### Claim 19 (depends on 17) The non-transitory computer-readable storage medium of claim 17, wherein the PU includes one or more non-video coding layer (VCL) NAL units. ### Claim 20 (depends on 17) The non-transitory computer-readable storage medium of claim 17, wherein the only one coded picture comprises one or more slices each including a slice header, and wherein each of the one or more slices is disposed in a video coding layer (VCL) NAL unit.