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, selecting at least one reconstructed sample line neighboring to the current block, constructing a reference sample using at least one reconstructed sample included in the at least one reconstructed sample line, and performing intra prediction for the current block based on the intra prediction mode and the reference sample.

Abstract: An element recognition apparatus (100) segments three-dimensional skeleton information including a subject performing a series of performances, acquired in chronological order, into a plurality of units in accordance with a predetermined rule. The element recognition apparatus (100) determines whether a postural motion corresponding to a first unit among the units is a first motion having a feature indicating that the subject is stationary or a second motion different from the first motion. The element recognition apparatus (100) determines, based on a determination result corresponding to the first unit and a recognition result of recognition on the type of moving motion in a second unit that is continuous with the first unit, an element corresponding to the combination including at least the first unit and the second unit.

Abstract: Systems, methods and apparatus for storing or parsing a visual media file according a file format include performing a conversion between a visual media data and a visual media file that stores a bitstream of the visual media data according to a format rule. The visual media file stores one or more tracks comprising one or more video layers. The format rule specifies that whether a first set of syntax elements indicative of layer dependency information is stored in the visual media file is dependent on whether a second syntax element indicating that all layers in the visual media file are independent has a value 1.

Abstract: A method of determining geo-reference data for a portion of a measurement area includes providing a monitoring assembly comprising a ground station, providing an imaging assembly comprising an imaging device with a lens operably coupled to an aerial device, hovering the aerial device over a measurement area, capturing at least one image of the measurement area within the imaging device, transmitting the at least one image to the ground station using a data transmitting assembly, and scaling the at least one image to determine the geo-reference data for the portion of the measurement area by calculating a size of a field-of-view (FOV) of the lens based on a distance between the imaging device and the measurement area.

Abstract: An automation hub may automatically identify the arrival of a package to a location and provide a notification of the delivery to a user. A package authenticator may be generated via the automation hub at the location for embedment in a packaging of a product that is being ordered from a merchant for delivery to the location. Subsequently, the package authenticator may be associated with a pending delivery of the product at the location in response to receiving an indication that the package authenticator is submitted to the merchant via an order. The presence of an arrived package authenticator may be detected in proximity of the location via a sensor that is connected to the automation hub. A notification of arrival for the product may be generated for presentation on connected user devices in response to the arrived package authenticator matching the package authenticator.

Abstract: An apparatus (200) for receiving an input video data stream according to an embodiment is provided. The input video data stream has a video encoded thereinto. The apparatus (200) is configured to generate an output video data stream from the input video data stream.

Abstract: An encoding device 1 includes: a transformer 13 configured to calculate an orthogonal transform coefficient by performing an orthogonal transformation process on a residual image indicating a difference between the input image and a predicted image of the input image; a quantizer 14 configured to generate quantization coefficient by quantizing the orthogonal transform coefficient based on a quantization parameter; an entropy encoder 24 configured to generate encoded data by encoding the quantization coefficient; an image decoder 10 configured to restore an orthogonal transform coefficient from the quantization coefficient based on the quantization parameter and generate a pre-filtering image by adding the predicted image to a residual image restored by performing inverse orthogonal transformation on the orthogonal transform coefficient; and a deblocking filter 18 configured to perform a filtering process on the pre-filtering image and control a filtering strength depending on a result of comparison between a

Abstract: A video encoder may signal a set of values for one or more deblocking filter parameters at a high level parameter set. A video decoder may receive and decode the set of values. The video encoder may also encode an index to the set of values at a lower level. The video decoder may decode the index and then use the index to determine the particular value from the set of values to determine the deblocking filter parameter.

Abstract: The amount of memory required for CCLM prediction is reduced. The CCLM prediction parameter derivation unit (310442) derives a scale shift value corresponding to a luma difference value, and derives a CCLM prediction parameter, by shifting, by using the scale shift value, a value obtained by multiplying a value of a table referred to with a value obtained by performing right shift of the luma difference value by the scale shift value as an index and a chroma difference value. In addition, in a case of deriving a prediction image, a bit width is reduced by adaptively deriving a shift amount of a linear prediction parameter from the chroma difference value.

Abstract: An image processing device 300, a non-transitory computer readable storage medium, a monitoring camera 200 and a method 100 of pre-processing images of a video stream before encoding the video stream are disclosed. The images are obtained S110, wherein the obtained images have a first resolution. The obtained images are subsampled S120 to intermediate images having a second resolution lower than the first resolution and lower than a third resolution. The intermediate images are upsampled S130 to output images having the third resolution, wherein the third resolution is the same for all images of the video stream.

Abstract: A method for encoding a picture of a video sequence in a bit stream that constrains tile processing overhead is provided. The method includes computing a maximum tile rate for the video sequence, computing a maximum number of tiles for the picture based on the maximum tile rate, and encoding the picture wherein a number of tiles used to encode the picture is enforced to be no more than the maximum number of tiles.

Abstract: Devices, systems and methods for asymmetric weighted bi-predictive merging in video coding are described. In a representative aspect, a method for decoding video data includes determining that a current video block of the video data is predicted from an asymmetric bi-predictive merge candidate, wherein different weights are used for a first reference block and a second reference block, and making, based on the determination, a determination between enabling and disabling a coding tool for the current video block. In a case that the current video block is predicted from an asymmetric bi-predictive merge candidate, the coding tool is not applied to the current video block.

Abstract: The multi sample prediction method of the present invention comprises the steps of: determining a sample group consisting of a plurality of samples inside a decoding target block; determining a representative position corresponding to the sample group, inside the decoding target block; determining a representative prediction value for the sample group, on the basis of the determined representative position; and determining the determined representative prediction value as the final prediction value for each of the plurality of samples making up the sample group. The present invention enhances efficiency in encoding/decoding and reduces complexity thereof.

Abstract: A method of video processing includes performing a conversion between a video including a plurality of video layers and a bitstream of the video, wherein the bitstream includes a plurality of output layer sets (OLSs), each including one or more of the plurality of video layers, and the bitstream conforms to a format rule, wherein the format rule specifies that, for an OLS having a single layer, a profile-tier-level (PTL) syntax structure that indicates a profile, a tier and a level for the OLS is included in a video parameter set for the bitstream, and the PTL syntax structure for the OLS is also included in a sequence parameter set coded in the bitstream.

Abstract: An automation hub may automatically identify the arrival of a package to a location and provide a notification of the delivery to a user. A package authenticator may be generated via the automation hub at the location for embedment in a packaging of a product that is being ordered from a merchant for delivery to the location. Subsequently, the package authenticator may be associated with a pending delivery of the product at the location in response to receiving an indication that the package authenticator is submitted to the merchant via an order. The presence of an arrived package authenticator may be detected in proximity of the location via a sensor that is connected to the automation hub. A notification of arrival for the product may be generated for presentation on connected user devices in response to the arrived package authenticator matching the package authenticator.

Abstract: An imaging condition set in a first region of a three-dimensional model of a subject and an imaging condition set in a second region of the three-dimensional model are different from each other. A processor of an observation device determines whether or not the imaging condition that has been set in the first region or the second region including a position on the three-dimensional model is satisfied. The position is identified on the basis of a position of an imaging device and a posture of the imaging device. The processor displays observation information on a display on the basis of a result of determination. The observation information represents whether or not the first region or the second region including the position on the three-dimensional model has been observed.

Abstract: A video decoding apparatus (31) for splitting an image into tiles, splits a tile of the tiles into coding tree units (CTUs), and decodes a video on a per-CTU basis, the video decoding apparatus including a header decoder (3020) configured to decode tile unit information indicating a unit for a size of a tile from header information of a coding stream, and a coding tree (CT) decoder (3021) configured to split the tile into CTUs, wherein the header decoder derives a tile upper left position and a tile size by using the tile unit information.

Abstract: A video coding mechanism is disclosed. The mechanism includes receiving a bitstream including a plurality of picture parameter sets (PPSs) and a plurality of pictures at a plurality of picture sizes. A first picture size of a first picture is determined from a first PPS. The first picture is decoded at the first picture size to create a decoded reference picture. The decoded reference picture is stored in a decoded picture buffer. A second picture size of a second picture is determined from a second PPS. The second picture references the decoded reference picture according to inter-prediction. The decoded reference picture is scaled from the first picture size to the second picture size. The second picture is decoded at the second picture size based on the decoded reference picture at the second picture size.

Abstract: An electronic apparatus includes a processor configured to identify a first distance based on locations of first pixels that received the reflective light, and identify a second distance based on locations of the second pixels that received the reflective light, and calculate a difference between the first and second distances, and based on a distance acquired by the calculation and a moving distance of the electronic apparatus identified through the second sensor, identify whether the reflective light is reflective light reflected by an object or reflective light that was reflected on the object and then reflected again by another object.

Abstract: Techniques and tools for reducing latency in video encoding and decoding by constraining latency due to reordering of video frames, and by indicating the constraint on frame reordering latency with one or more syntax elements that accompany encoded data for the video frames. For example, a real-time communication tool with a video encoder sets a syntax element that indicates a constraint on frame reordering latency, which is consistent with inter-frame dependencies between multiple frames of a video sequence, then outputs the syntax element. A corresponding real-time communication tool with a video decoder receives the syntax element that indicates the constraint on frame reordering latency, determines the constraint on frame reordering latency based on the syntax element, and uses the constraint on frame reordering latency to determine when a reconstructed frame is ready for output (in terms of output order).