Abstract: Aspects of the disclosure provide methods, apparatuses, and a non-transitory computer-readable medium for point cloud compression and decompression. In a method, syntax information of a point cloud is decoded from a coded bitstream. The syntax information indicates that parallel decoding is to be performed on occupancy codes of nodes in a range of one or more partitioning depths in an octree partitioning structure of the point cloud is determined. The parallel decoding is performed on the occupancy codes of the nodes. The point cloud is reconstructed based on the occupancy codes of the nodes.

Abstract: A system comprises an encoder configured to compress attribute and/or spatial information for a point cloud and/or a decoder configured to decompress compressed attribute and/or spatial information for the point cloud. To compress the attribute and/or spatial information, the encoder is configured to convert a point cloud into an image based representation. Also, the decoder is configured to generate a decompressed point cloud based on an image based representation of a point cloud. In some embodiments, an encoder performs downscaling of an image frame prior to video encoding and a decoder performs upscaling of an image frame subsequent to video decoding.

Abstract: A method of video encoding includes determining whether a first block associated with a second block is to be predicted according to a block differential pulse code modulation (BDPCM) mode, and, in response to determining that the first block is to be predicted according to the BDPCM mode, associating the first block with an intra prediction mode value based on a BDPCM direction for the first block. The intra prediction mode value is selected from a plurality of intra prediction modes that include angular intra prediction modes. The method also includes determining an intra prediction mode value for the second block using the intra prediction mode value associated with the first block, and encoding the second block using the determined intra prediction mode value for the second block.

Abstract: An example device for coding video data includes a memory configured to store video data; and one or more processors implemented in circuitry and configured to: code a first codeword representing a selected transform scheme of a set of transform candidates of a multiple transform selection (MTS) scheme for a current block of video data, the selected transform scheme being a secondary transform of a set of available secondary transforms to be applied in addition to a primary transform; code a second codeword representing the secondary transform from the set of available secondary transforms; and apply the primary transform and the secondary transform during coding of residual data for the current block. The second codeword may be a value for a low-frequency non-separable transform (LFNST) syntax element.

Abstract: Example techniques and devices for decoding video data are disclosed. An example device includes memory configured to store the video data and one or more processors implemented in circuitry and communicatively coupled to the memory. The one or more processors are configured to extract a current sub-picture from a bitstream of the video data and parse virtual boundary syntax elements indicative of virtual boundaries for a current picture, wherein the current sub-picture is associated with the current picture. The one or more processors are configured to update the virtual boundaries based at least in part on the virtual boundary syntax elements and decode the current sub-picture based on the updated virtual boundaries.

Abstract: Systems, methods and apparatus for visual media data processing are described. One method includes performing a conversion between a visual media data and a visual media file that stores a bitstream of the visual media data in multiple tracks according to a format rule that specifies that the file-level information includes a syntax element that identifies one or more tracks from the multiple tracks that contain a specific type of sample group that includes operation point information.

Abstract: A method for in-loop sample offset filtering in a video decoder is disclosed. The method includes obtaining at least one statistical property associated with reconstructed samples of at least a first color component in a current reconstructed data block of a video stream, selecting a target sample offset filter among a plurality of sample offset filters based on the at least one statistical property, the target sample offset filter comprising a nonlinear mapping between sample delta measures and sample offset values, and filtering a current sample in a second color component of the current reconstructed data block using the target sample offset filter and reference samples in a third color component of the current reconstructed data block to generate a filtered reconstructed sample of the current sample.

Abstract: Methods, systems and devices for signaling the usage of adaptive loop filtering in image and video coding are described. An example method of video processing includes determining, for a conversion between a current region of a video and a bitstream representation of the video, whether a luma adaptive loop filter is used during the conversion and whether luma adaptive loop filter coefficients are included in the bitstream representation, wherein a single syntax element in the bitstream representation is indicative of use of the luma adaptive loop filter and signaling of the luma adaptive loop filter coefficients, and performing, based on the determining, the conversion.

Abstract: According to embodiments of the present document, the subjective/objective quality of an image can be improved through image coding on the basis of subpictures and/or virtual boundaries, and consumption of hardware resources required for coding can be reduced.

Abstract: A method and image processing device are provided, including a deblocking filter. The deblocking filter modifies values of at most MA samples of the first image block as first filter output values, the at most MA samples being obtained from a column of the first image block that is perpendicular to and adjacent to the horizontal block edge; and modifies values of at most MB samples of the second image block as second filter output values, the at most MB samples being obtained from a column of the second image block that is perpendicular to and adjacent to the horizontal block edge. At most a number MA of sample values of the first image block adjacent to the block edge are modified and at most a number MB of sample values of the second image block adjacent to the block edge are modified, wherein MA<MB.

Abstract: A geolocationing system and method for providing awareness in a multi-space environment, such as a hospitality environment or educational environment, are presented. In one embodiment of the geolocationing system, a vertical and horizontal array of gateway devices is provided. Each gateway device includes a gateway device identification providing an accurately-known fixed location within the multi-space environment. Each gateway device includes a wireless transceiver that receives a beacon signal from a proximate wireless-enabled personal locator device. The gateway devices, in turn, send gateway signals to a server, which determines an estimated location of the wireless-enabled personal locator device.

Abstract: Systems and methods for capturing and distributing a live audio stream of a live event in real-time to a plurality of mobile computing devices are described. The system comprises at least one memory configured to store computer-executable instructions and processing device(s) coupled to the at least one memory and at least one audio input device configured to receive the live audio stream. Upon receipt of the live audio stream, the processing device(s) generate, in real-time, a plurality of discrete audio data packets from the live audio stream, and transmit that respective discrete audio data packet over a first network for receipt by the mobile computing devices. In respect of each one of the discrete audio data packets, a copy of the discrete audio data packet is transmitted for receipt by each one of the mobile computing devices prior to transmitting another one of the discrete audio data packets.

Abstract: Techniques have been developed to facilitate the livestreaming of group audiovisual performances. Audiovisual performances including vocal music are captured and coordinated with performances of other users in ways that can create compelling user and listener experiences. For example, in some cases or embodiments, duets with a host performer may be supported in a sing-with-the-artist style audiovisual livestream in which aspiring vocalists request or queue particular songs for a live radio show entertainment format. The developed techniques provide a communications latency-tolerant mechanism for synchronizing vocal performances captured at geographically-separated devices (e.g., at globally-distributed, but network-connected mobile phones or tablets or at audiovisual capture devices geographically separated from a live studio).

Abstract: A video quality evaluation system comprises a training module, a calculation module, an analytical module, a designing module, an optimization module, and an estimation module. The training module collects training videos and trains labels of perceptual quality generation that is associated with the collected videos. The calculation module determines objective metrics based on the trained labels that are associated with the collected videos. The analytical module analyses scenes of the training video, and correlates objective metrics associated with the analysed scenes using perceptual parameters. The designing module designs a Convolutional Neural Network (CNN) Architecture based on data associated with the objective metrics and trains a model generated based on the designed CNN architecture. The optimization module optimizes the model and optimizes power after the model optimization. The estimation module estimates perceptual quality scores for incoming video data after the power optimization.

Abstract: The present disclosure relates to systems, non-transitory computer-readable media, and methods for accurately, flexibly, and efficiently broadcasting public combined live video streams from multiple participant devices, which change over the course of the live broadcast, as well as generating dynamic user interfaces that streamline adding, removing, and swapping participant devices from the public combined live video stream. In particular, a live video streaming system facilitates compositing live video streams from multiple participant devices into a public combined live video stream within a digital room before broadcasting the public combined live video stream to viewer devices.

Abstract: A video transmission method according to the present disclosure includes: generating a transmission signal including, in a time series, first video data having a first luminance dynamic range and second video data having a second luminance dynamic range wider than the first luminance dynamic range; and transmitting the transmission signal generated. In the generating of the transmission signal, a signal level corresponding to a luminance value is limited to a value lower than a limit value that is predetermined, in a transition period provided for switching from one of the first video data and the second video data to the other.

Abstract: An apparatus and method for delivering a spatially enhanced live streaming experience for virtual reality or 360 degree live streaming of video is disclosed. A live streaming video signal is encoded into multiple streams at varying resolutions. A portion of the high resolution video stream, corresponding to a field of view within the entire 360 degree view, is merged with a low resolution video stream. The resulting video stream is referred to as a spatial adaptive video stream. Multiple spatial adaptive video streams are generated to provide a high resolution field of view across the entire 360 degrees. As the viewer looks in different directions, the video player plays back one of the spatial adaptive video streams according to the direction in which the viewer is looking.

Abstract: A method includes capturing video frames of a video item to be transmitted as a livestream and delivering the video frames to a queue for an encoder of a user device. The method further includes determining that a subset of the video frames have been discarded. The discarding indicates that the subset of the video frames did not enter the encoder. The method further includes determining a frequency of discarded video frames. Responsive to the frequency exceeding a threshold frequency, the method includes reducing quality of the video item transmitted as the livestream based on the frequency by reducing one or more of frame rate of the user device, resolution of the user device, or encoder bitrate of the encoder.

Abstract: Systems and methods for performing adaptive bitrate streaming using alternative streams of protected content in accordance with embodiments of the invention are described. One embodiment of the invention includes a processor, and memory containing a client application. In addition, the client application configures the processor to: request a top level index file identifying a plurality of alternative streams of protected content, where each of the alternative streams of protected content are encrypted using common cryptographic information; obtain the common cryptographic information; request portions of content from at least the plurality of alternative streams of protected content; access the protected content using the common cryptographic information; and playback the content.

Abstract: A system is provided for publishing a disparate live media output stream manifest that includes one or more media segments corresponding to key events. A start and stop time is obtained for a pre-produced media asset from a live playout system synchronized to a reference clock. Based on a reference time of the reference clock and play events from the live playout system, a normalized event metadata is converted from a play time of pre-produced media asset metadata to the reference time. The play events exists for the pre-produced media asset as start and stop times per the pre-produced media asset support inclusion of non-programming content and restart of the pre-produced media asset during a playout. Start and end messages are transmitted for publishing the normalized event metadata each time the pre-produced media asset is started and stopped during the playout in a disparate live media output stream.

Abstract: The present disclosure describes a monitoring device for determining one or more characteristics of one or more scheduled programs within one or more packetized elementary streams of one or more transport streams. The monitoring device receives the one or more transport streams from a service provider system and de-encapsulates the one or more packetized elementary streams from the one or more transport streams. The monitoring device determines the one or more characteristics of the one or more scheduled programs from the one or more packetized elementary streams. The one or more characteristics can be used by the monitoring device to adapt on a dynamic, real-time, or near real-time, basis to changes to the one or more transport streams.

Abstract: In various embodiments, a quality of experience (QoE) prediction application computes a visual quality score associated with a stream of encoded video content. The QoE prediction application also determines a rebuffering duration associated with the stream of encoded video content. Subsequently, the QoE prediction application computes an overall QoE score associated with the stream of encoded video content based on the visual quality score, the rebuffering duration, and an exponential QoE model. The exponential QoE model is generated using a plurality of subjective QoE scores and a linear regression model. The overall QoE score indicates a quality level of a user experience when viewing reconstructed video content derived from the stream of encoded video content.

Abstract: First information associating a first unique master identifier with multiple different aliases is obtained from a first database accessible to an enrichment-content delivery system. The first unique master identifier is assigned to a first primary content item. Second information, which links the first unique master identifier to first enrichment content is obtained from a second database accessible to the enrichment-content delivery system. First playout information, which includes a first alias identifying a first media item scheduled for playout by a first media station is received from the first media station. A determination is made based on the first information and the second information, that the first alias is associated with the first unique master identifier assigned to the first primary content item. In response to that determination, the first enrichment content is transmitted to the first media station.

Abstract: Systems and methods are disclosed that measure web activity bursts after ad broadcasts that may be sent to multiple persons. One system uses a cookie-less/cookie-optional, anonymous/personal-identification-not-required, method for web-based conversion tracking that will work on broadcast media systems such as television, and could also be applied to measuring spikes from email, radio, and other forms of advertising where an episodic ad event is broadcast to multiple parties, and where responses occur in a batch after the broadcast.

Abstract: Systems and methods are provided for dynamically displaying hyperlinks in a video based on various factors associated with a device at which the video is played and/or a user of the device. In one or more aspects, a system includes a request component configured to receive a request to play a video hosted by a media provider. The system further includes a selection component configured to select a subset of links included in a set of links associated with the video to provide with the video when it is played in response to the request based in part on a number of links included in the set of links, wherein graphical elements respectively representative of the links included in the subset of links are configured to be displayed over the video when the video is played in response to the request.

Abstract: An information distribution apparatus includes: a user information receiving unit configured to receive user information from user devices that respective users have, the user information including at least one of user-captured images and positional information of the users, and user IDs of the users; a user specifying unit configured to specify at least one user from a plurality of pieces of user information; an other user extraction unit configured to extract at least one other user who is present near the specified user based on at least one of the user-captured images and the positional information of the user; a related user group information generation unit configured to generate related user group information in which at least one of the pieces of user information is associated with at least one of pieces of other user information.

Abstract: For example, an apparatus may include a video encoder configured to encode video data into a parallel plurality of encoded video streams, the parallel plurality of encoded video streams including the video data encoded according to a respective plurality of different video bitrates; a selector configured to select, based on one or more parameters corresponding to a condition of a wireless communication link, a selected encoded video stream from the parallel plurality of encoded video streams; and a radio to transmit the selected encoded video stream over the wireless communication link.

Abstract: There is provided systems and methods for performing actions based on light signatures. An exemplary system includes a light source, a light detector, a non-transitory memory storing a plurality of light signatures and a hardware processor. The hardware processor executes an executable code to illuminate, using the light source, a target object with a first light, collect, using the light detector, a second light being a reflection of the first light by the target object, match the second light with one of the plurality of light signatures, and perform an action in response to matching the second light with the one of the plurality of light signatures.

Abstract: Systems, apparatuses, methods, and one or more computer-readable media storing executable instructions for predicting trigger events, such as an advertisement during a video program, and activating a remote control device in response to the prediction are described. By activating the remote control device at a particular time, the remote control device may save energy when listening for data from one or more terminal devices. The time to activate the remote control may be based on one or more factors, including the current presentation position and/or presentation speed of the video program. A remote control device may take additional actions the next time it listens for data, including illuminating backlights, turning on a display, displaying content on the display, interacting with other devices, etc.

Abstract: A method of modifying playing of media content in a group watch session comprises receiving a command to modify play; determining respective preferences of respective users in the session; and, if it is determined that execution of the command is consistent with the preferences, causing modifying of the playing of at least a portion of the media content based on the received command, e.g., by skipping the portion, jumping to another play position, or rewinding or fast-forwarding through the portion. In this manner, the command is executed, or not executed, based on the preferences of multiple users. The method may include estimating a satisfaction score for the command for the respective users, and comparing the estimated satisfaction scores with a reference score. The portion(s) of the media content for which play is modified may be determined based on the estimated satisfaction scores.

Abstract: Techniques and systems are provided for processing user interface content. For example, a server computer can receive a user interface event corresponding to a user interface of a device (e.g., a client device, another server computer, or other device). An application associated with the user interface event can be determined, and an interface model 5 can be generated using the application associated with the user interface event. The interface model defines state information for one or more graphic objects of the user interface. The state information results from the user interface event. The server computer can send the interface model to the device, which enables the device to render the user interface.

Abstract: A multi-window user interface (UI) is presented in various configurations and operational uses to leverage the relatively large display canvas afforded by large screen display devices such as 4K or 8K displays. Along with the various “Multiview” aspects, content delivery techniques, content selection techniques, and level of service techniques also are presented.

Abstract: A data display method and apparatus, a storage medium, and an electronic device are provided. The method includes: receiving, by a terminal, a first target operation instruction on a client during a process of playing a video of a game on the client; obtaining, by the terminal, process data of a target type in response to the first target operation instruction. The process data indicates game information corresponding to a current moment of the video of the game, and the game information being time-sensitive. The method also includes displaying, by the terminal, a first target interface on the client, the first target interface displaying the process data of the target type.

Abstract: The present disclosure provides a method for playing an MP4 online, an electronic device, and a computer readable storage medium. The present disclosure relates to the technical fields of artificial intelligence, and further relates to the technical fields of media cloud. A specific embodiment of the method includes: acquiring a total size of a target MP4 file, and determining a target data length based on the total size and a preset proportion, where the preset proportion is determined based on a proportion of MOOV data to a complete MP4 file; acquiring header data having the target data length from a header of the MP4 file, and acquiring trailer data having the target data length from a trailer of the MP4 file; and playing the target MP4 file online based on actual MOOV data extracted from the header data or the trailer data.

Abstract: Methods, apparatus, systems and articles of manufacture are disclosed to determine the speed-up of media programs using speech recognition. An example apparatus disclosed herein is to perform speech recognition on a first audio clip collected by a media meter to recognize a first text string associated with the first audio clip, compare the first text string to a plurality of reference text strings associated with a corresponding plurality of reference audio clips to identify a matched one of the reference text strings, and estimate a presentation rate of the first audio clip based on a first time associated with the first audio clip and a second time associated with a first one of the reference audio clips corresponding to the matched one of the reference text strings.

Abstract: A method, non-transitory computer-readable storage medium, and reception apparatus for extracting metadata, and an information providing apparatus for providing the metadata. The method for extracting metadata includes processing, by circuitry of the reception apparatus, content that includes the metadata embedded therein. The metadata is embedded as a watermark in a first portion of a video frame of the content. The circuitry determines symbol values of the watermark from the video frame based on luminance values in pixels of the first portion of the video frame of the content to extract the metadata. At least one of the luminance values is less than 16.

Abstract: A media device and method execute computer instructions to: generate a first query fingerprint of media content; send the first query fingerprint to a server; and receive, from the server, an identification of a first channel being watched in response to the server finding a match to the first query fingerprint. The media device iteratively receives, from the server, a plurality of fingerprints generated from the media content in locations ahead of where the media content is being received; store the plurality of fingerprints in a local database of a computer-readable storage medium; and compare a second query fingerprint of the media content with the plurality of fingerprints to determine whether the media device remains set on the first channel, without continuously pinging the server. When the media device locally detects a non-match with the second query fingerprint, the process starts over with it finding a match at the server.

Abstract: Methods, apparatus, systems, and articles of manufacture to create a reference signature asset from matched signature fragments are disclosed. Example apparatus disclosed herein form a group of matched signature fragments corresponding to a same piece of media. Disclosed example apparatus also select a subset of matched signature fragments from the group to form a path of matched signature fragments that collectively represent a continuous segment of the piece of media, the continuous segment identified by a segment start time and a segment end time, the segment start time corresponding to a fragment start time associated with an initial matched signature fragment in the path, and the segment end time corresponding to a fragment end time associated with a last matched signature fragment in the path. Disclosed example apparatus further use the path to combine the subset of matched signature fragments and create a new reference signature asset.

Abstract: Example invertible metering apparatus and related methods are disclosed. An example apparatus disclosed herein includes at least one processor and memory including instructions that, when executed, cause the at least one processor to at least: determine an orientation of a housing; determine if a housing is in a mounting orientation; in response to determining that the housing is not in the mounting orientation, initiate a first alarm; in response to determining that the housing is in the mounting orientation, determine an orientation of a stencil; determine if the stencil is in an upright orientation; in response to determining that stencil is not in the upright orientation, initiate a second alarm; and in response to at least one of the housing being in the mounting orientation or the stencil being in the upright orientation, assign a light pattern to a plurality of lights associated with the stencil.

Abstract: An interactive television program guide application is provided that queries a user regarding the user's interest in television programs and suggests television programs to the user based on the user's responses. The interactive television program guide application identifies a television program that is potentially of interest to the user. The interactive television program guide application then queries the user regarding the user's interest using questions that are formulated based on attributes associated with the identified television program. Using the user's responses to the questions, the interactive television program guide application identifies and suggests one or more television programs to the user.

Abstract: This application is directed to presenting a unified user interface on a network-connected television device. The unified user interface displays media content recommendations selected and organized based on knowledge of a user (e.g., search queries, search results, watch history, purchase history, physical activities). The unified user interface also includes a focus area for displaying a series of media content items (e.g., an advertisement) sequentially according to a temporal order for the purposes of promoting a media content item, product, event or service. In some implementations, playback of a media content item presented on the unified user interface relies on a collaborative implementation of a corresponding media player application and a media content casting application, particularly when the play involves a restricted mode. The content casting application is enabled to play the media content item at the restrict mode when the media player application does not operate in the restricted mode.

Abstract: In some embodiments, an electronic device presents a plurality of representations of content items that are available on a respective channel in response to successfully subscribing the respective channel. In some embodiments, an electronic device plays content that is provided by a channel in a unified media browsing application. In some embodiments, an electronic device presents information about subscribing to a channel based on content consumption activity of the user on the electronic device in accordance with some embodiments of the disclosure.

Abstract: A live media streaming system and method is presented herein. The system and method includes broadcasting a live media stream in at least one of a plurality of themed broadcasting channels, the live media stream being transmitted from a broadcasting device corresponding to a broadcasting user. A jump zone (a physical region or area) is selected or defined based upon predetermined jump zone criteria corresponding to the at least one of the plurality of themed broadcasting channels. Further, a next broadcasting user is selected, wherein the user is located within the physical geographic region of the jump zone. Once the next broadcasting user is selected, a live media stream is broadcasted from the next user's broadcasting device.

Abstract: A method and apparatus are described. The method includes receiving a set of audio soundtracks associated with media content, determining if one of the audio soundtracks is an audio description soundtrack, and modifying at least one main audio soundtrack to include an indication that an audio description soundtrack is available for the media content if it is determined that one of the audio soundtracks is an audio description audio soundtrack. The apparatus includes memory that stores a set of audio soundtracks associated with media content. The apparatus also includes an audio processing circuit configured to retrieve the set of audio soundtracks, determine if one of the audio soundtracks is an audio description soundtrack, and modify at least one main audio soundtrack to include an indication that an audio description soundtrack is available for the media content if it is determined that one of the audio soundtracks is an audio description soundtrack.

Abstract: The present invention provides a technique of reducing colored afterimages. To solve this problem, an image capturing system includes the following structure: A color separation optical system disperses subject light into a plurality of wavelength ranges, and forms images of a plurality of color components. A plurality of image capturing elements capture the respective images of the plurality of color components, and generate the respective color components of a video signal. A color-specific exposure setting unit sets respective exposure periods for the plurality of color components. An exposure control unit performs exposure control ? of approximately simultaneously exposure-controlling each of the plurality of image capturing elements to obtain a video signal (hereafter referred to as a reference video signal) in a common period shorter than or equal to a shortest period of the respective exposure periods set for the color components.

Abstract: An optical assembly includes: a camera module; at least one actuator configured to move the camera module; and a connection substrate having one end connected to the camera module such that at least a portion of the connection substrate is configured to move along with movement of the camera module. The connection substrate includes a rigidity reduction portion reducing rigidity of the connection substrate in a portion of the substrate in which distortion or warpage occurs according to the movement of the camera module.

Abstract: A cradle can be used to capture video of an object, such as hair. That video can then be used to extract and visualize color information relating to that material using a colorcloud. The colorcloud contains all the colors that were present in one or more frames of the video. The cradle comprises a video recording device that is able to see the material through a window on the cradle. A smartphone can be used with the cradle to act as the video recording device, as well as provide lighting.

Abstract: An optical path change module includes: a first rotation holder; a reflection member disposed on the first rotation holder, and configured to change a path of light; a second rotation holder configured to support the first rotation holder; and a module case accommodating the second rotation holder. The first rotation holder is coupled to the second rotation holder, and configured to rotate around a first pivot axis. The second rotation holder is coupled to the module case, and configured to rotate around a second pivot axis intersecting the first pivot axis.

Abstract: Provided is a lens apparatus connected to a camera configured to pick up an image based on a set pickup parameter, comprising: a first operating member; a controller configured, based on an operation of the first controller, to control a function of the lens apparatus in a first mode and to output a signal for switching a setting of a combination of pickup parameters including a function of the camera in a second mode; and a switching device configured to switch from the first mode to the second mode, in which the combination of pickup parameters in the second mode is previously set by a user.

Abstract: A multicamera device includes: a first sensor to detect a first spectrum of external light; a second sensor to detect a second spectrum of the external light; and an optic overlapping with the first and second sensors. The optic includes: a substrate; a first reflective layer on the substrate; and an optical layer between the first sensor and the substrate, the optical layer to transmit the first spectrum of the external light to the first sensor, and reflect the second spectrum of the external light toward the first reflective layer, and the first reflective layer is to reflect the second spectrum of the external light in a direction toward the second sensor.