Abstract: Methods and devices for decoding a video stream are provided, a method includes storing previously decoded pictures of the video stream in a decoded picture buffer, including a plurality of first pictures of a same temporal sub-layer, the plurality of first pictures including at least one sub-layer reference picture for predicting a current picture of the video stream; identifying a network abstract layer (NAL) unit type of a picture of the plurality of first pictures; removing, based on the NAL unit type of the picture identified, the picture from the decoded picture buffer; and decoding the current picture using the decoded picture buffer. The decoding includes predicting the current picture using one or more of the at least one sub-layer reference picture that is stored within the decoded picture buffer, after removing the picture from the decoded picture buffer.

Abstract: Methods and apparatuses for video encoding, comprising: receiving a video sequence; encoding the video sequence by using control flags for luma mapping with chroma scaling (LMCS) at a sequence level, a picture level, or a slice level, wherein the sequence level, the picture level, and the slice level are levels ranking from high to low; signaling a first control flag indicating whether the LMCS is enabled at a first level; and in response to the first control flag indicating the LMCS is enabled at the first level, signaling a second control flag indicating whether LMCS is enabled at a second level, wherein: the LMCS is enabled at the second level when a value of the second control flag equals to 1; the LMCS is disabled at the second level when the value of the second control flag equals to 0; and the second level is a lower level than the first level.

Abstract: A calibration device for an imaging device includes an imaging data acquisition unit that acquires imaging data of a known external target installed at a known position outside a work range of work equipment, the imaging data being obtained by imaging of at least one imaging device provided in a work machine including the work equipment, an external target position acquisition unit that acquires a position of the known external target, and a calibration unit that calibrates the imaging device based on the position of the known external target, which is acquired by the external target position acquisition unit, and the imaging data of the known external target, which is acquired by the imaging data acquisition unit.

Abstract: Apparatuses, methods and storage media associated with surface traversing by robotic apparatuses with an obstacle detection system are described herein. In some instances, the obstacle detection system is mounted on the body of the apparatus, and includes one or more light sources, to illuminate the surface to be traversed; a camera, to capture one or more images of the illuminated surface; and a processing device coupled with the camera and the light source, to process the captured one or more images, to detect, or cause to be detected, an obstacle disposed on the illuminated surface, based at least in part on a result of the processing of the images. Other embodiments may be described and claimed.

Abstract: An arrangement for wireless transmission of electrical signals in a motor vehicle maintains a cassette equipped with a stator (3) and a rotor (4) rotatably mounted in the stator (3) is arranged on the steering wheel of the motor vehicle, where the cassette has at least one electrical line extending in windings mounted between stator and rotor. The stator of the cassette is connected to the steering column, while the rotor is connected to the steering wheel. The transmitter (6) is arranged in the immediate vicinity of the stator (3) of the cassette and the receiver (7) is mechanically connected to the rotor (4) of the cassette and electrically to at least one electrical line (9) with a display (8) for displaying received signals.

Abstract: A kit to facilitate identifying at least one glove particularly suitable to be worn by a particular individual includes a backdrop having at least two visually-discernible calibration marks disposed thereon, a camera, a memory having stored therein characterizing parameters for a variety of different gloves, and a control circuit that operably couples to the latter. The control circuit presents to a kit user via a display an image of the particular individual's hand as placed on the backdrop, and then presents a plurality of user-placeable markers by which the kit user marks particular locations of the particular individual's hand. The control circuit then processes the image of the particular individual's hand as marked by the kit user and as a function of the two visually-discernible calibration marks to identify at least one glove that is particularly suitable to be worn by the particular individual.

Abstract: A triangulation scanner having a projection unit, at least one first image acquisition unit and one second image acquisition unit and a control and processing unit for deriving distance measured values from image information. The scanner comprises a third image acquisition unit and a fourth image acquisition unit and an acquisition zoom functionality for activating or reading out the sensors such that a respective first acquisition state and a respective second acquisition state can be provided for each sensor. The acquisition of an image corresponding to a field of view defined by the respective acquisition zoom level is provided by each such acquisition zoom level thus definable, wherein the fields of view are each different.

Abstract: Devices, systems and methods related to management of syntax flags with respect chroma formats in video processing are described. In one representative aspect, a video decoding method includes determining, for a conversion between a video and a coded representation of the video, whether a syntax element associated with an adaptive loop filtering (ALF) operation for a chroma component of the video is included in the coded representation based on a condition. The method also includes performing the conversion according to the determining.

Abstract: An immersive video processing method according to the present disclosure includes determining a priority order of pruning for source view videos, generating a residual video for an additional view video based on the priority order of pruning, packing a patch generated based on the residual video into an atlas video, and encoding the atlas video.

Abstract: As part of bypass decoding syntax elements for a set of coefficients in response to reaching a maximum number of regular coded bins, a video decoder is configured to receive a prefix value for a transform coefficient; decode the prefix value using Golomb-Rice coding; in response to a length of the prefix value being equal to a threshold value, receive a suffix value for the transform coefficient; decode the suffix value using exponential Golomb coding; and determine a level value for the transform coefficient based on the decoded prefix value and the decoded suffix value.

Abstract: A video packaging and origination service can include one or more encoder components that receive content for encoding and transmitting to requesting entities. During the operation of the encoder components, individual encoders receive input signals for encoding and determine quality metric information related to the generation of an encoded segment. The encoder components exchange quality metric information and an encoder component is selected to transmit an encoded segment. The selection of an individual encoder component per segment can continue throughout the streaming process.

Abstract: A method, computer program, and computer system is provided for video encoding and decoding. A bitstream of data corresponding to an image having pre-determined multiple regions is received, and a number is determined from the bitstream corresponding to a number of filters in an adaptive loop filter associated with the image. A region index to filter an index lookup table is decoded. The filter coefficients of the filters in the adaptive loop filter are decoded. The image is decoded based on the decoded filter coefficients and the decoded region index to filter the index lookup table.

Abstract: Techniques for localizing a portable articulated arm coordinate measuring machine (AACMM) are described. An example localization method includes in response to an AACMM base being placed at a first position, capturing a first set of images of a positioning element in a predetermined area. The method further includes determining first 3D coordinates of the positioning element using the first set of images. 3D coordinates corresponding to a position of a first measurement probe in the predetermined area are computed using the first 3D coordinates. Further, the method includes, in response to the base being moved to a second position, determining second 3D coordinates of the positioning element from the second position using a second set of images. Further, the localization method includes determining a translation matrix to convert the second 3D coordinates to the first 3D coordinates.

Abstract: According to an embodiment, an object tracking device in a welding process tracks and outputs a predetermined object in a welding image. The object tracking device comprises a camera device capturing the welding image including a base material and a welding torch for welding the base material, a controller receiving a plurality of camera control parameter-varied images from the camera device, identifying the predetermined object in the received images, and generating an object tracking image, the plurality of camera control parameter-varied images having varied camera control parameters of the camera device, and an output device outputting the welding image captured by the camera device, the plurality of images received by the controller, or the object tracking image generated by the controller.

Abstract: A computer system is provided. The computer system includes a memory and at least one processor coupled to the memory and configured to provide office safety controls. The at least one processor is further configured to perform computer vision analysis on an image of a shared resource to determine safety related conditions associated with the shared resource, the safety related conditions including a count of people using the shared resource and timing of the use of the shared resource, and update analytics associated with the shared resource based on the determined safety related conditions. The at least one processor is further configured to maintain a notification subscription associated with a user, the notification subscription including user specified safety parameters related to the shared resource, and generate a notification regarding the shared resource, the generation based on a comparison of the updated analytics and the user specified safety parameters.

Abstract: An image decoding method may include determining whether at least one of a height and a width of a current coding unit is greater than a predetermined size, obtaining, based on whether the current coding unit is to be split into transform units, a second coded block flag from the bitstream, the second coded block flag indicating whether a block of a luma component included in the at least one transform unit includes at least one transform coefficient in the bitstream, obtaining a residual signal of the block of the luma component included in the at least one transform unit, based on the second coded block flag, reconstructing the current coding unit based on the residual signal, and reconstructing the current image including the current coding unit, based on the reconstructed current coding unit. The split shape mode may indicate at least one of whether to perform splitting, a split direction, and a split type, and the split type may correspond to binary splitting, tri splitting, and quad splitting.

Abstract: A vision system for a motor vehicle includes an optical image capture device configured to capture images of objects in its field of vision. A lighting device includes a plurality of lighting elements forming a lighting matrix configured to illuminate the field of vision of the optical device. A control device associated with the optical device and the lighting device is configured to determine the nature of each image of an object captured by the optical device. The control device is configured to locate the object, select the lighting elements of the lighting matrix capable of illuminating the object relative to the location of the object, and individually control at least one lighting characteristic of each selected lighting element so as to be able to determine the nature of the image of the object captured by the optical device.

Abstract: A method for processing an electronic image including receiving, by a viewer, the electronic image and a FOV (field of view), wherein the FOV includes at least one coordinate, at least one dimension, and a magnification factor, loading, by the viewer, a plurality of tiles within the FOV, determining, by the viewer, a state of the plurality of tiles in a cache, and in response to determining that the state of the plurality of tiles in the cache is a fully loaded state, rendering, by the viewer, the plurality of tiles to a display.

Abstract: The present disclosure provides a method for calibrating a binocular camera, including: S2 of extracting feature points from an image set 1 and an image set 2 taken at two points separated from each other by a predetermined distance; S3 of fitting Gaussian distribution parameters of each feature point, and extracting a desired value as a theoretical disparity; S4 of selecting a common feature point, and calculating the predetermined quantity of frames at a first theoretical distance and the predetermined quantity of frames at a second theoretical distance; S5 of performing Gaussian fitting on a difference between the theoretical distances of the common feature point, and extracting a variance as an evaluation index; S6 of determining whether the evaluation index is smaller than a threshold, if yes, terminating the calibration, and otherwise, proceeding to S7; and S7 of adjusting posture parameters of the binocular camera, and returning to S3.

Abstract: A method of video processing is described. The method includes determining, for subblocks of a current video block of a video, subblock boundaries to which a deblocking filter is to be applied according to a rule; and performing a conversion between the video and a coded representation of the video using the deblocking filter, wherein the rule specifies that a deblocking filter length is determined without checking a relationship between i) a sum of a position of a subblock of the current video block and a predefined value and ii) a width or a height of the current video block.