# US 2025/0097397 A1 · Image data encoding/decoding method and apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2025/0097397 A1 - Document ID: US20250097397A1 - Status: Published application - Kind: A1 - Application number: 18/971,587 - Filed: 2024-12-06 - Published: 2025-03-20 - Earliest claimed: 2016-10-04 - Assignees: B1 Institute of Image Technology, Inc. - Applicants: B1 Institute of Image Technology, Inc. - Inventors: Ki Baek KIM - Web page: https://patentgrep.com/patent/US20250097397A1 ## CPC - H04N 13/161: Encoding, multiplexing or demultiplexing different image signal components (for multi-view video sequence encoding H04N19/597) - G06T 3/40: Scaling of whole images or parts thereof, e.g. expanding or contracting - H04N 19/103: Selection of coding mode or of prediction mode - H04N 19/105: Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction - H04N 19/11: among a plurality of spatial predictive coding modes - H04N 19/119: Adaptive subdivision aspects, e.g. subdivision of a picture into rectangular or non-rectangular coding blocks - H04N 19/124: Quantisation - H04N 19/129: Scanning of coding units, e.g. zig-zag scan of transform coefficients or flexible macroblock ordering [FMO] - H04N 19/13: Adaptive entropy coding, e.g. adaptive variable length coding [AVLC] or context adaptive binary arithmetic coding [CABAC] - H04N 19/134: characterised by the element, parameter or criterion affecting or controlling the adaptive coding - H04N 19/157: Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or parameter - H04N 19/159: Prediction type, e.g. intra-frame, inter-frame or bidirectional frame prediction - H04N 19/167: Position within a video image, e.g. region of interest [ROI] - 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 19/176: the region being a block, e.g. a macroblock - H04N 19/55: Motion estimation with spatial constraints, e.g. at image or region borders - H04N 19/597: specially adapted for multi-view video sequence encoding - H04N 19/625: using discrete cosine transform [DCT] - H04N 19/70: characterised by syntax aspects related to video coding, e.g. related to compression standards - H04N 23/698: for achieving an enlarged field of view, e.g. panoramic image capture - H04N 19/61: in combination with predictive coding - H04N 19/96: Tree coding, e.g. quad-tree coding - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION - G06T: IMAGE DATA PROCESSING OR GENERATION, IN GENERAL ## Abstract Disclosed are methods and apparatuses for decoding an image. A method includes receiving a bitstream obtained by encoding the image; dividing a first coding block into a plurality of second coding blocks; generating a prediction block of a second coding block based on syntax information obtained from the bitstream; and reconstructing the second coding block based on the prediction block and a residual block of the second coding block, the residual block being obtained by performing a dequantization and an inverse-transform on quantized transform coefficients from the bitstream. The first coding block has a recursive division structure. The first coding block is divided based on at least one of a quad tree division, a binary tree division or a triple tree division. ## Claims ### Claim 1 A method of decoding an image with a decoding apparatus, comprising: receiving a bitstream in which the image is encoded; determining an intra prediction mode for a current block included in the image based on an intra prediction being performed for the current block; performing prediction for the current block based on the intra prediction mode to generate a prediction block; reconstructing the current block based on the prediction block; obtaining the reconstructed image based on the reconstructed current block; and performing a data processing on the reconstructed image based on data processing information included in the bitstream, wherein the data processing comprises padding at least one region to the reconstructed image. ### Claim 2 (depends on 1) The method of claim 1, wherein the data processing information is a SEI message. ### Claim 3 (depends on 1) The method of claim 1, wherein the data processing comprises resizing the reconstructed image. ### Claim 4 (depends on 3) The method of claim 3, wherein the resizing is performed based on a flag indicating whether to enable the resizing indicating enable. ### Claim 5 (depends on 4) The method of claim 4, wherein, based on the flag indicating enable, the data processing information comprises resizing information for the resizing. ### Claim 6 (depends on 3) The method of claim 3, wherein the resizing is either increasing or decreasing the width or height of the reconstructed image. ### Claim 7 (depends on 5) The method of claim 5, wherein the resizing information comprises a scaling factor which represents a ratio between a size of the reconstructed image and a size of a resized image obtained by the resizing, the size being a width or a height. ### Claim 8 A method of encoding an image with an encoding apparatus, comprising: determining an intra prediction mode for a current block included in the image based on an intra prediction being performed for the current block; performing prediction for the current block based on the intra prediction mode to generate a prediction block; encoding the current block based on the prediction block into a bitstream; and encoding data processing information into the bitstream, wherein the data processing information is used for performing a data processing on a reconstructed image, the reconstructed image being an image obtained by decoding the bitstream, and wherein the data processing comprises padding at least one region to the reconstructed image. ### Claim 9 A computer readable recoding medium storing a bitstream which is generated by a method of encoding an image, the method of encoding comprises: determining an intra prediction mode for a current block included in the image based on an intra prediction being performed for the current block; performing prediction for the current block based on the intra prediction mode to generate a prediction block; encoding the current block based on the prediction block into a bitstream; and encoding data processing information into the bitstream, wherein the data processing information is used for performing a data processing on a reconstructed image, the reconstructed image being an image obtained by decoding the bitstream, and wherein the data processing comprises padding at least one region to the reconstructed image. ### Claim 10 A method of transmitting a bitstream which is generated by a method of encoding an image, the method of encoding comprises: determining an intra prediction mode for a current block included in the image based on an intra prediction being performed for the current block; performing prediction for the current block based on the intra prediction mode to generate a prediction block; encoding the current block based on the prediction block into a bitstream; and encoding data processing information into the bitstream, wherein the data processing information is used for performing a data processing on a reconstructed image, the reconstructed image being an image obtained by decoding the bitstream, and wherein the data processing comprises padding at least one region to the reconstructed image.