Separations or images relating to film or other fields may be registered using a variety of features, such as, for example: (1) correcting one or more film distortions; (2) automatically determining a transformation to reduce a film distortion; (3) applying multiple criteria of merit to a set of features to determine a set of features to use in determining a transformation; (4) determining transformations for areas in an image or a separation in a radial order; (5) comparing areas in images or separations by weighting feature pixels differently than non-feature pixels; (6) determining distortion values for transformations by applying a partial distortion measure and/or using a spiral search configuration; (7) determining transformations by using different sets of features to determine corresponding transformation parameters in an iterative manner; and (8) applying a feathering technique to neighboring areas within an image or separation.

Separations or images relating to film or other fields may be registered using a variety of features, such as, for example: (1) correcting one or more film distortions; (2) automatically determining a transformation to reduce a film distortion; (3) applying multiple criteria of merit to a set of features to determine a set of features to use in determining a transformation; (4) determining transformations for areas in an image or a separation in a radial order; (5) comparing areas in images or separations by weighting feature pixels differently than non-feature pixels; (6) determining distortion values for transformations by applying a partial distortion measure and/or using a spiral search configuration; (7) determining transformations by using different sets of features to determine corresponding transformation parameters in an iterative manner; and (8) applying a feathering technique to neighboring areas within an image or separation.

A video decoding method is provided. The method includes obtaining a current frame of a video input; partitioning the current video frame into a plurality of coding blocks; predicting a symbol level for each coding block in intra prediction modes included in an allowed intra prediction mode (AIPM) set, where the intra prediction modes included in the AIPM set are a subset of all available intra prediction modes in video coding formats of different video coding schemes and are determined based on coding efficiency and compression performance, and each of the intra prediction modes included in the AIPM set is identified by an index number; transforming and quantizing a residual symbol level; entropy coding the transformed and quantized residual symbol level; and outputting a bitstream.

A method for decoding a 360-degree image includes: receiving a bitstream obtained by encoding a 360-degree image; generating a prediction image by making reference to syntax information obtained from the received bitstream; combining the generated prediction image with a residual image obtained by dequantizing and inverse-transforming the bitstream, so as to obtain a decoded image; and reconstructing the decoded image into a 360-degree image according to a projection format. Here, generating the prediction image includes: checking, from the syntax information, prediction mode accuracy for a current block to be decoded; determining whether the checked prediction mode accuracy corresponds to most probable mode (MPM) information obtained from the syntax information; and when the checked prediction mode accuracy does not correspond to the MPM information, reconfiguring the MPM information according to the prediction mode accuracy for the current block.

A video decoding method includes obtaining a current frame of a video input; partitioning the current video frame into a plurality of coding blocks; predicting a symbol level for each coding block in intra prediction modes included in an allowed intra prediction mode (AIPM) set; transforming and quantizing a residual symbol level; entropy coding the transformed and quantized residual symbol level; and outputting a bitstream. The intra prediction modes included in the AIPM set are determined by determining whether a current video coding format for the current frame is of a video coding scheme based on VVC standard or a video coding scheme based on AV1 standard. The intra prediction modes include 6 most probable modes (MPM) and 32 remaining modes in the AIPM set for VVC standard, and directional modes of 8 nominal angles and non-directional or smooth modes in the AIPM set for AV1 standard.

A video decoding method is provided. The method includes obtaining a current frame of a video input; partitioning the current video frame into a plurality of coding blocks; predicting a symbol level for each coding block in intra prediction modes included in an allowed intra prediction mode (AIPM) set, where the intra prediction modes included in the AIPM set are a subset of all available intra prediction modes in video coding formats of different video coding schemes and are determined based on coding efficiency and compression performance, and each of the intra prediction modes included in the AIPM set is identified by an index number; transforming and quantizing a residual symbol level; entropy coding the transformed and quantized residual symbol level; and outputting a bitstream.

Disclosed are an intra-prediction mode-based image processing method and a device therefor. Particularly, a method for processing an image on the basis of an intra-prediction mode may comprise the steps of: configuring a reference sample to be used for prediction of a current block on the basis of width information and height information of the current block when the current block is a non-square block; deriving an intra-prediction mode of the current block; and generating a prediction sample of the current block by using the reference sample on the basis of the intra-prediction mode of the current block.

Systems and methods are provided that allow caregivers, central monitoring services, and other persons to monitor whether a monitored individual's hands have entered into an area in which the hands are prohibited, such as areas in which the monitored individual may remove or disturb a piece of medical equipment. When the monitored individual's hands do enter the restricted area that is represented by an electronic virtual safety zone, an alert is generated and transmitted to a designated recipient.

A video decoding method includes obtaining a current frame of a video input; partitioning the current video frame into a plurality of coding blocks; predicting a symbol level for each coding block in intra prediction modes included in an allowed intra prediction mode (AIPM) set; transforming and quantizing a residual symbol level; entropy coding the transformed and quantized residual symbol level; and outputting a bitstream. The intra prediction modes included in the AIPM set are determined by determining whether a current video coding format for the current frame is of a video coding scheme based on VVC standard or a video coding scheme based on AV1 standard. The intra prediction modes include 6 most probable modes (MPM) and 32 remaining modes in the AIPM set for VVC standard, and directional modes of 8 nominal angles and non-directional or smooth modes in the AIPM set for AV1 standard.

A video decoding method includes obtaining a current frame of a video input; partitioning the current video frame into a plurality of coding blocks; predicting a symbol level for each coding block in intra prediction modes included in an allowed intra prediction mode (AIPM) set; transforming and quantizing a residual symbol level; entropy coding the transformed and quantized residual symbol level; and outputting a bitstream. The intra prediction modes included in the AIPM set are determined by determining whether a current video coding format for the current frame is of a video coding scheme based on VVC standard or a video coding scheme based on AV1 standard. The intra prediction modes include 6 most probable modes (MPM) and 32 remaining modes in the AIPM set for VVC standard, and directional modes of 8 nominal angles and non-directional or smooth modes in the AIPM set for AV1 standard.