Abstract: An image encoding/decoding method and apparatus for performing intra prediction are provided. An image decoding method of the present invention comprises deriving an intra-prediction mode for a current block, determining whether or not a left boundary or an upper boundary of the current block is a boundary of a predetermined image region, configuring a reference sample by using at least one reconstructed sample included in at least one reconstructed sample line adjacent to the current block based on the determination result, and performing intra-prediction for the current block based on the intra-prediction mode and the reference sample.

Abstract: A head-mounted display system includes a head mounted display unit with a display and a positioning and stabilising structure configured to hold the head-mounted display unit in an operable position on the user's head in use. The positioning and stabilizing structure includes headgear with at least one strap configured to contact the user's head, in use. The head mounted display unit and at least a portion of the positioning and stabilizing structure are formed from a one piece construction of textile material.

Abstract: An Internet of Things equipment management system and an operation method thereof are provided. The operation method includes: obtaining, by a wearable camera, a group number and a user name of the wearable camera from a client-side server; scanning a barcode of a sensor to obtain a serial number of the sensor and writing the group name to the sensor by the wearable camera; pairing, by the wearable camera, the group name and the serial number to establish a pairing relationship between the wearable camera and the sensor; and transmitting, by the wearable camera, the pairing relationship to the client-side server.

Abstract: Camera head apparatus, systems, and methods for providing wide angle/panoramic images and/or video of the interior of pipes or other cavities using multiple imaging and illumination modules are disclosed.

Abstract: One variation of a method for autonomously generating an optimized audio-visual (AV) file from an original AV file comprises: a) generating a vector cube comprising a plurality of vector matrices for an original AV file; b) for each vector matrix within the vector cube, determining an optimal subframe having a subframe size larger than or equal to a predetermined minimum subframe size; and c) generating an optimized AV file based on the optimal subframes determined for each of the vector matrices within the vector cube.

Abstract: A camera tracking bar of a camera tracking system for computer assisted surgery navigation. The camera tracking bar includes a first set of stereo tracking cameras having first resolution, first field of view, and spaced apart on the camera tracking bar by a first baseline distance. The camera tracking bar also includes a second set of stereo tracking cameras having second resolution, second field of view, and spaced apart on the camera tracking bar by a second baseline distance that is less than the first baseline distance. The second set of stereo tracking cameras is positioned between the first set of stereo tracking cameras, and the resolution and/or the field of view of the second set of stereo tracking cameras is different from the resolution and/or the field of view of the first set of stereo tracking cameras. A communication interface provides camera video streams to the camera tracking subsystem.

Abstract: An image decoding method performed by a decoding apparatus, according to the present document, comprises the steps of: acquiring image information including a block-based delta pulse code modulation (BDPCM) constraint flag indicating whether or not BDPCM is constrained with respect to an image; acquiring BDPCM-associated information regarding a current block on the basis of the BDPCM constraint flag; and generating reconstructed samples for the current block on the basis of the BDPCM-associated information.

Abstract: A system comprises an encoder configured to compress video data using an in-loop noise generation process that generates noise in the compression loop at a sub-image portion level of granularity, such as at a block level. The encoder includes noise model and/or noise model input parameter information in an encoded bit stream. Also, a system includes a decoder configured to receive such a bit stream and decompress the video using an in-loop noise generation process that generates noise in the decompression loop at a sub-image portion level of granularity.

Abstract: A method of and an apparatus for controlling intra prediction for decoding of a video sequence are provided. The method includes setting a table including a plurality of intra prediction modes respectively corresponding to a plurality of intra prediction angles, the plurality of intra prediction angles including diagonal intra prediction angles respectively corresponding to diagonal directions of all shapes of coding units, and selecting, for decoding the video sequence, one of the plurality of intra prediction modes, from the set table.

Abstract: Calibration of parameters of an endoscopic or laparoscopic camera is conducted while the camera is in use capturing images of a surgical procedure at a surgical site. The surgical procedure is performed using a surgical instrument marked with a fiducial pattern. A processor receives image data from images captured by the camera and uses machine vision to detect points of the pattern, and carries out an optimization to determine the 3D pose of the surgical instrument relative to the camera and the camera parameters. Once calibration parameters are determined, 3D measurements between measurement points in the body cavity may be estimated.

Abstract: An encoder includes circuitry and memory coupled to the circuitry. In operation, the circuitry determines one or more tiles included in a picture and one or more subpictures included in the picture, according to a constraint condition that each tile of the one or more tiles includes at least one subpicture of the one or more subpictures entirely and the each tile does not include another subpicture of the one or more subpictures partially.

Abstract: An image decoding method, a decoder and a storage medium are provided. The method includes: receiving code stream data, and parsing the code stream data to obtain a coding tree unit corresponding to the code stream data; parsing an i-th node of i-th layer corresponding to the coding tree unit to obtain i-th state parameter and i-th flag parameter corresponding to the i-th node; performing detection processing on the i-th node according to the i-th state parameter and the i-th flag parameter to obtain an i-th detection result; acquiring a (i+1)th node of a (i+1)th layer corresponding to the coding tree unit; continuing to perform detection processing on the (i+1)th node, and traversing all the nodes corresponding to the coding tree unit until all the coding unit data corresponding to the coding tree unit is obtained; and generating a decoded image corresponding to the code stream data.

Abstract: A reference picture marking process and a reference picture list management process is handled in a unified reference picture marking and reference picture list management process. A new idle reference picture list may be used for handling reference pictures that are not used for reference in the current picture. Differential coding of picture order count may be used to increase coding efficiency. The reference picture management syntax structure may be sent in the picture parameter set for improved coding efficiency e.g. in regular GOP (group of pictures) arrangements.

Abstract: An optical satellite remote sensing transfer calibration method based on near-space aerostat, including: performing a temporal-spatial matching between first observation image data of a target region collected by a benchmark radiometric payload and second observation image data of the target region collected by a satellite-borne payload, to obtain a plurality of matchups of observation image data (S1); obtaining an average radiance of the benchmark radiometric payload from a plurality of first observation image data (S2); obtaining an average DN captured by the satellite payload in the target region from a plurality of second observation image data (S3); obtaining a matching radiance for an observation band of the benchmark radiometric payload corresponding to the satellite payload based on the average radiance of the benchmark radiometric payload (S4); and obtaining a calibration coefficient of the satellite payload based on the matching radiance and the average DN (S5).

Abstract: A method for decoding a video according to the present invention may comprise: determining merge target candidate blocks of a current coding block, specifying at least one among the merge target candidate blocks, and generating a merged block by merging the specified merge target candidate block and the current coding block.

Abstract: An image decoding method according to the present document comprises the steps of: when an ISP is applied to a current block and the width or height of a sub-partition block is less than or equal to 2, applying LFNST to the transform coefficients to derive modified transform coefficients; deriving residual samples for the objective block on the basis of an inverse primary transform for the modified transform coefficients; and generating a reconstructed picture on the basis of the residual samples for the objective block, wherein when the sub-partition block is an N×2 block or a 2×N block, (M×2) or (2×M) number of modified transform coefficients are derived by applying an LFNST matrix to a predetermined number of transform coefficients in an upper left M×2 area or 2×M (M?N) area of the sub-partition block.

Abstract: A method of video processing includes making a determination for a conversion between a video region of a video and a bitstream representation of the video to use a cross-component adaptive loop filtering (CC-ALF) tool for refining chroma samples values using luma sample values; and performing the conversion based on the determination, wherein the refining includes correcting the chroma sample values using a final refinement that is a further refinement of a first refinement value determined by selectively filtering the luma sample values.

Abstract: A dual mode camera may have a camera module and a light source. The camera module may include a quasi-bandpass filter for passing visible light and passing an attenuated portion of near-infrared light to an image sensor for detection. A processor may determine an ambient lighting condition corresponding with an amount of ambient visible light detected by a photodetector. In response to a first ambient lighting condition, the processor may send a first control signal to an encoder to encode image data in monochrome, and another signal to activate a light source. In response to a second ambient lighting condition, the processor may send a second control signal to the encoder to encode image data in color. The light source may emit a band of near-infrared light corresponding with an atmospheric absorption band. The quasi-bandpass filter may attenuate a portion of near-infrared light corresponding with the same atmospheric absorption band.

Abstract: A display module installed on a device of a vehicle is disclosed. The device includes an airbag module having an inflator and an airbag, and the airbag is configured to be inflated by a gas produced by the inflator. The display module includes a display panel. The display panel is disposed on the airbag module when the airbag is not inflated by the gas. The display panel is secured to the device of the vehicle when the airbag is inflated by the gas.

Abstract: There is provided a technique that includes a triangle merging candidate list constructor structured to construct a triangle merging candidate list including spatial merging candidates, a first triangle merging candidate selector structured to select, from the triangle merging candidate list, a first triangle merging candidate that is uni-prediction, and a second triangle merging candidate selector structured to select, from the triangle merging candidate list, a second triangle merging candidate that is uni-prediction, in which in a region where motion compensation by weighted averaging by the first triangle merging candidate and the second triangle merging candidate is performed, uni-prediction motion information of one of the first triangle merging candidate or the second triangle merging candidate is saved.