Abstract: A self-driving vehicle (SDV) can analyze a live sensor view to autonomously operate acceleration, braking, and steering systems of the SDV along a current route. The SDV can identify an indeterminate object in the live sensor view, and encoding sensor data identifying the indeterminate object for transmission to a backend transport system over one or more networks. The SDV may then receive a resolution response from the backend transport system to resolve the indeterminate object, and cause the SDV to proceed in accordance with the resolution response.

Abstract: A method of acquiring and accumulating data from a server via a network is provided. A request is transmitted for a plurality of items of data and includes at least one ingestion marker associated with the data. The at least one ingestion marker represents a last occurrence of when a change was made to the data. Data is received with a transfer protocol in response to the request. The data has at least one associated ingestion marker different than the at least one associated ingestion marker transmitted with the request. The received data and the at least one associated ingestion marker is stored in memory. The request is transmitted and the data is received and stored electronically by an electronic client device communicating with the server over the network. A system of acquiring and accumulating Electronic Program Guide (EPG) data from a web-server over a network is also disclosed.

Abstract: A video encoding device is configured to obtain an N by N array of residual values for a luma component and a corresponding N/2 by N array of residual values for a chroma component. The video encoding device may partition the N/2 by N array of residual values for the chroma component into two N/2 by N/2 sub-arrays of chroma residual values. The video encoding device may further partition the sub-arrays of chroma residual values based on the partitioning of the array of residual values for the luma component. Video encoding device may perform a transform on each of the sub-arrays of chroma residual values to generate transform coefficients. A video decoding device may use data defining sub-arrays of transform coefficients to perform a reciprocal process to generate residual values.

Abstract: In one embodiment, a system for setting frame priority according to priority levels includes a video encoder to encode a first video frame of a live video stream yielding an encoded first video frame having a first priority level, and a processor to read, from a memory, an estimate of a time delay, the time delay being a time for data in the live video stream to be transferred from a first device to a second device, and determine if the estimate of the time delay exceeds a pre-defined delay, and wherein if the estimate of the time delay exceeds the pre-defined delay, the video encoder is operative to encode a second video frame with a higher priority level than the first priority level, the second video frame being a most recent video frame to be presented from the live video stream for encoding after the first video frame. Related apparatus and methods are also described.

Abstract: Encoding and decoding using advance coded reference prediction may include identifying a sequence of temporally adjacent frames from the plurality of frames, wherein each frame in the sequence of temporally adjacent frames is associated with a respective frame position indicating a temporal location the sequence, encoding a first frame from the sequence as an intra-coded frame, generating an alternate reference frame by reconstructing the first encoded frame, encoding a second frame from the sequence with reference to a reference frame, the second frame associated with a second frame position, including the first encoded frame in a compressed bitstream at a first bitstream position, and including the second encoded frame in the compressed bitstream at a second bitstream position, wherein the second bitstream position is later than the first bitstream position and wherein the first frame position is later than the second frame position.

Abstract: Several data streams contain video, audio and/or other data. Some of the data streams are pre-recorded in a multiplex on a storage medium while other data streams are located out of the data stream multiplex on the storage medium. The data streams are synchronized using a navigation file (List_of_PlayItems), which comprises descriptors (PlayItems, SubPlayItems) pointing to parts of said data streams, wherein said descriptors define the arrangement in time for said data streams by means of data sub stream paths.

Abstract: A helicopter-mounted communication apparatus encodes video data at a compression rate based on a percentage of time a transmission beam is blocked by rotor blades. When a number of video packets is less than a specified number, the helicopter-mounted communication apparatus inserts null packets to keep a packet rate constant, then deletes the null packets and attaches additional information to another packet indicating the number of deleted null packets, and after buffering modulates and transmits a signal toward a communication satellite at transmittable-time points.

Abstract: A transport stream provider for providing a plurality of transport stream packets describing digital media information is configured to provide a transport stream packet of a first packet type including a program association table and key information for decrypting encrypted media information. The program association table contains an association between a program No. and a packet type identifier of a further transport stream packet of a second packet type. The transport stream provider is configured to provide a transport stream packet of the second packet type in such a manner that the transport stream packet of the second packet type contains a reference to packet type identifiers of transport stream payload data packets which describe contents of different content types of the digital media information.

Abstract: Methods and apparatuses to encode multimedia data enabling, among others, for example, improved decoded video quality, improved error recovery capabilities and/or improved decoding efficiency are described. A method according to the application includes one or more of the following: initializing a pixel-level reference counter for a current frame, performing a prediction of a next frame referring to the current frame, incrementing the pixel-level reference counter for each pixel of the current frame that is referenced during the prediction of the next frame, readjusting a macroblock bandwidth map of the current frame, repeating the steps of initializing, performing and readjusting for each next frame in a plurality of next frames referring to the current frame, and encoding the current frame based at least in part on the readjusted macroblock bandwidth map of the current frame.

Abstract: Systems and methods for transmitting video frames are described. Specifically, frame rate modification techniques such as blending and/or packing processes are used to translate high frame-rate signals into low-frame rate signals, which are transmitted over limited bandwidth transmission media to a video signal receiver. Information pertaining to the blending and/or packing processes is transferred to the video signal receiver in the form of a map that is used to reconstruct the high frame-rate signals from the low-frame rate signals. The high frame-rate signals may be used by certain types of newer equipment designed to use such signals. However, legacy equipment that cannot use the high frame-rate signals may opt to use certain embodiments described herein that are designed to be backward-compatible. When backward-compatible, the video signal receiver generates suitable low frame-rate signals as well as the high frame-rate signals, thereby accommodating both legacy as well as newer equipment.

Abstract: A method for scanning MacroBlocks in video compression and selecting alternative sized Large Macroblocks accordingly. The scanning pattern is divided into scanning fragments with a size corresponding to different possible Large Macroblocks. This allows for varying the size of the selected Macroblocks, based on minimizing distortion and/or bit rate consumption.

Abstract: For example, samples included in a frame constituted by a 3840×2160/24P,25P,30P/4:4:4,4:2:2,4:2:0/10,12-bit signal are mapped into first to fourth sub-images specified in the HD-SDI format, in units of two adjoining samples. Thus, it is possible to transmit through a transmission constitution for the HD-SDI format. The signal can be converted into serial digital data permitting a bit rate of 10.692 Gbps or the like and transmitted, and the receiving side can accurately reproduce original data.

Abstract: A device for displaying multiple image streams each comprising multiple image frames that entertains multiple viewers includes at least three image generators for generating at least three separate image streams that each include multiple image frames. At least one of the image generators is configured for at least one viewer input. An image multiplexer is provided for interleaving image frames of each image stream to produce an interleaved image stream and a display is provided for showing the interleaved image stream. A method of displaying multiple image streams is also presented.

Abstract: Watermark information (denoted WM) consists of several symbols which are embedded continuously by reference sequence modulation in an audio or a video signal. At decoder site the WM is regained using correlation of the received signal with a corresponding reference sequence. The symbols form watermark data frames. The invention uses for the bit values ‘zero’ and ‘one’ in each payload symbol and for each payload symbol in a watermark data frame different reference sequences, without using synchronisation symbols. A logarithmic search is performed in the WM decoder to reduce the numbers of correlations to be calculated. The invention makes watermarking of critical sound signals much more robust.

Abstract: The decode rate of an MPEG decoder of streaming video is set to a relatively slow value at the start of a stream to permit playing, albeit at relatively low speeds, of the video until an appropriate number of packets are in a receive buffer, at which time the decode rate is speeded up to normal.

Abstract: An improved loss recovery method for coding streaming media classifies each data unit in the media stream as an independent data unit (I unit), a remotely predicted unit (R unit) or a predicted data unit (P unit). Each of these units is organized into independent segments having an I unit, multiple P units and R units interspersed among the P units. The beginning of each segment is the start of a random access point, while each R unit provides a loss recovery point that can be placed independently of the I unit. This approach separates the random access point from the loss recovery points provided by the R units, and makes the stream more impervious to data losses without substantially impacting coding efficiency. The most important data units are transmitted with the most reliability to ensure that the majority of the data received by the client is usable. The I units are the least sensitive to transmission losses because they are coded using only their own data.

Abstract: Presented is a method of displaying a newly requested channel in a mobile TV device prior to retuning the mobile TV device to the newly selected channel. The mobile TV device demodulator and tuner are cycled on for a short period of time at regular intervals to conserve battery power. Data is buffered from multiple channels in a buffer within the mobile TV device while the demodulator is cycled on. The mobile TV device displays data from one of the buffered channels upon a request to switch to the channel prior to retuning the mobile TV device to the newly selected channel. The mobile TV device is then retuned to the newly selected channel at the next instance the demodulator and tuner are cycled on.

Abstract: Methods and systems for processing pixels within a decoded video stream are disclosed. Processed pixels may be received within the decoded video stream and may be buffered in a buffer at a first rate. The buffered received processed pixels may be transferred out of the buffer at a second rate, where the first rate is greater than said second rate. The buffering of the received processed pixels and the transferring of the buffered received processed pixels out of the buffer may be monitored to prevent an overrun of the buffer. The first rate of the buffering of the received processed pixels may be reduced to prevent the overrun of the buffer. The second rate of the transferring of the buffered received processed pixels out of the buffer may be monitored to prevent the overrun of the buffer. Amount of the buffered received processed pixels within the buffer may be determined.

Abstract: A reception control section 11 for receiving the information including data and its transmission format information from a memory or communication channel, a separating section 12 for analyzing and separating received information, a transmitting section 13 for transmitting information to a memory or transmission channel, a video extending section 14 for extending a video, and video-extension control section 15 control the processing state of said video extending section 14 for extending at least one or more videos and a video synthesizing apparatus constituted with a video synthesizing section 16 for synthesizing videos in accordance with extended information, an output section 17 for outputting a synthesized result, and a terminal control section 18 for controlling the above means makes it possible to synthesize a plurality of videos at the same time and correspond to a dynamic change of transmission format information.

Abstract: A reception control section 11 for receiving the information including data and its transmission format information from a memory or communication channel, a separating section 12 for analyzing and separating received information, a transmitting section 13 for transmitting information to a memory or transmission channel, a video extending section 14 for extending a video, and video-extension control section 15 control the processing state of said video extending section 14 for extending at least one or more videos and a video synthesizing apparatus constituted with a video synthesizing section 16 for synthesizing videos in accordance with extended information, an output section 17 for outputting a synthesized result, and a terminal control section 18 for controlling the above means makes it possible to synthesize a plurality of videos at the same time and correspond to a dynamic change of transmission format information.

Abstract: One or more streams of image frames are filtered and restored using filtering and restoration patterns, respectively.

Abstract: Systems and methods for video communication are described. In one aspect, network bandwidth conditions are estimated. Bi-level or full-color video is then transmitted over the network at transmission bit rates that are controlled as a function of the estimated bandwidth conditions. To this end, network bandwidth capability is periodically probed to identify similar, additional, or decreased bandwidth capabilities as compared to the estimated bandwidth conditions. Decisions to hold, decrease, or increase the video transmission bit rate are made based on the estimated bandwidth conditions in view of the probing operations. When the transmission bit rate is increased or decreased, the transmission bit rate is calculated to target an upper or lower bit rate, both of which are indicated by the estimated bandwidth conditions. Bi-level video communication is switched to full-color video transmission, or vice versa, when the video transmission bit rate respectively reaches the upper bit rate or the lower bit rate.

Abstract: An apparatus for displaying at least one of a plurality of video signals on a display according to a display selection signal and for simultaneously providing selected video signals according to a providing selection signal, the apparatus comprising a signal conditioning unit for receiving the at least one video signal and for providing at least one corresponding conditioned video signal, a router for receiving the at least one conditioned signal and for providing at least one routed video signal in accordance with the providing selection signal and a multi-image apparatus for receiving and providing to the display at least one of the at least one corresponding conditioned video signal and the at least one routed video signal according to the display selection signal.

Abstract: According to a first aspect of the invention, there is provided a method for displaying at least one video signal on at least one display, the method comprising selecting at least one video signal to be displayed on the at least one display, providing, for each of the at least one selected video signal, at least one respective final display resolution and at least one respective target position on the at least one display, in at least one input unit, receiving a corresponding one of the selected at least one video signal, pre-scaling each of the corresponding one of the selected at least one video signal according to at least one respective intermediate display resolution compatible with said at least one respective final display resolution, in at least one output unit, post-scaling at least one pre-scaled video signal to obtain at least one post-scaled video signal at said at least one respective final display resolution, the selecting and pre-scaling enabling optimization of a bandwidth between the at least

Abstract: Disclosed herein is a video signal processing device including, first and second input terminals, a size changer configured to change an image size of an image to be displayed based on a video signal input from the second input terminal, a mixer configured to mix a video signal input from the first input terminal with a video signal that has passed through the size changer, and an output terminal configured to output a video signal arising from mixing by the mixer.

Abstract: The invention relates to a method for the compressed transmission of image data for a three-dimensional representation of scenes and objects. A known method for transmitting video data between an emitter and a receiver according to the method for prioritised pixel transmission, can be advantageously used for transmitting and processing three-dimensional objects and scenes, or the corresponding additional data in that each scene/object is taken from at least two perspectives, one perspective being associated with the actual image array and the at least one other perspective being associated with an offset region of the image array. A larger number of pixel groups are transmitted from the actual image array than from the offset region, the pixels of the missing pixel groups of the offset region being calculated from the already transmitted pixel groups of the image array.

Abstract: A system for providing, in a television system, the combination, transmission, and reception of multiple video presentations over a single channel of a television distribution system. Presentations may be concurrently broadcast for viewing by many users, as well as interactively requested for display by many (potentially one thousand or more) individual users. A presentation consists of a sequence of images which reproduce a full motion, reduced motion, or a still image video presentation for the user when displayed. The signal is transmitted in a standard television format, and consists of a sequence of video images from the various presentations being transmitted. A user terminal receiving the transmitted signal is selectably operable to display one of the multiple transmitted presentations with accompanying audio. The terminal identifies the video images on an associated television receiver. The number of concurrent presentations, and the degree of motion in the presentations are dynamically variable.

Abstract: An adaptive digital image processor precedes an MPEG2 encoder. The processor receives a high definition video signal intended for broadcast or storage, and adaptively low-pass filters the signal. The signal is subjected to low-pass two-dimensional filtering to eliminate encoding artifacts and related noise. The video signal is then horizontally down-sampled to create a lower resolution hybrid signal. A receiver decodes and decompresses the hybrid signal. The hybrid signal is upsampled to its original resolution using existing hardware and software with a software modification.

Abstract: The present invention makes it possible to efficiently transmit data for statistical multiplexing which is required for control using statistical multiplexing. By utilizing private packets, respective encoding devices transmit encoding difficulties serving as the data for statistical multiplexing to a multiplexer (4) via the same transmission channels as encoded video data and audio data are transmitted. The multiplexer (4) conducts multiplexing processing on data supplied from the respective encoding devices at a first rate R1 larger than a transmission rate on a transmission channel of a subsequent stage, and outputs a transport stream (TSd including the private packets to a statistical multiplexing computer.

Abstract: A reception control section 11 for receiving the information including data and its transmission format information from a memory or communication channel, a separating section 12 for analyzing and separating received information, a transmitting section 13 for transmitting information to a memory or transmission channel, a video extending section 14 for extending a video, and video-extension control section 15 control the processing state of said video extending section 14 for extending at least one or more videos and a video synthesizing apparatus constituted with a video synthesizing section 16 for synthesizing videos in accordance with extended information, an output section 17 for outputting a synthesized result, and a terminal control section 18 for controlling the above means makes it possible to synthesize a plurality of videos at the same time and correspond to a dynamic change of transmission format information.

Abstract: A reception control section 11 for receiving the information including data and its transmission format information from a memory or communication channel, a separating section 12 for analyzing and separating received information, a transmitting section 13 for transmitting information to a memory or transmission channel, a video extending section 14 for extending a video, and video-extension control section 15 control the processing state of said video extending section 14 for extending at least one or more videos and a video synthesizing apparatus constituted with a video synthesizing section 16 for synthesizing videos in accordance with extended information, an output section 17 for outputting a synthesized result, and a terminal control section 18 for controlling the above means makes it possible to synthesize a plurality of videos at the same time and correspond to a dynamic change of transmission format information.

Abstract: A plurality of moving picture transmitters (11 to 1n) encode a plurality of input objects, respectively, and transmit them onto a network (41). A moving picture receiver (21) receives bitstream data transmitted from each of the plurality of moving picture transmitters (11 to 1n), obtains information on the quality of the network (41), detects an error or the like that occurs in the bitstream data, and transmits priority information on the plurality of objects to the plurality of moving picture transmitters (11 to 1n), respectively. A registration server 31 registers information on the plurality of moving picture transmitters (11 to 1n) and information on the moving picture receiver 21 therein, and delivers them according to circumstances.

Abstract: An MPEG2 decoded video signal is accompanied by a representation of the coding decisions to aid downstream re-encoding. The representation is MPEG compliant bit modified to reduce the number of bits.

Abstract: A method and apparatus for reducing video data. The apparatus is composed of a plurality of reducers. A block is received, corresponding to a plurality of color space components and having a width defined by a plurality of pixels digitally represented by bytes. The video data is first reduced by performing power of two reduction. This is followed by fine scale reduction to achieve the final reduced image.

Abstract: Still picture images are encoded and transmitted at reduced rates using the MPEG-2 standard. Video frames are captured for processing at a still picture capture rate that is lower than the video input frame rate. The captured frames are compressed as Intra frames at the input frame rate. Selected ones of the compressed frames are inserted in the MPEG-2 transport stream for communication to a decoder at a still picture repetition rate which is no less, in frames per second, than the capture rate.

Abstract: The present invention relates to a method of processing a digital video data signal (DVS) in order to insert binary shape data into the digital video data signal. Such a method is used for processing the digital video data signal containing data relating to rectangular pictures, and segmented video data signals (SVS) provided by a segmentation step (SEG) of the digital video data signal, a segmented video data signal containing a video object (VO) which is a region of the rectangular picture. Said method of processing comprises the steps of identifying (ID) with an identifier to which video object of the segmented video data signals (SVS) a pixel of the rectangular picture belongs, inserting (INS) the identifiers into the digital video data signal so as to form a modified digital video data signal (DVSm), and encoding (ENC) the modified digital video data signal using a video-object-based encoding framework so as to obtain an encoded data signal (ES).

Abstract: In order to produce a decoded image substantially identical to an original image by processing a small amount of data, utilizing a thinning circuit (subsampler) a level of compression data obtained by extracting 9 pixels of an original image by 1 pixel is limited by a level limiting circuit by extracting 2 bits thereof from an MSB. In a local decoder, the original image is predicted based on correction data to output a predicted values thereof. Then, in an error calculator, a prediction error of the predicted values with respect to the original image is calculated. The compression data is corrected by a correcting circuit in such a manner that this prediction error becomes small.

Abstract: The present invention provides a digital video receiving apparatus for displaying a plurality of digital TV pictures on a plurality of receiving terminal apparatuses. The digital video receiving apparatus includes a tuner for extracting the received digital TV multiplexed signal, a demodulator for decoding the digital signals provided from the tuner, a demultiplexer for demultiplexing the multiplexed signals outputted from the demodulator to obtain a bit stream including a video signal, an audio signal and a data signal. The digital video receiving apparatus further includes a video decoder, an audio decoder and a data decoder for decoding signals outputted from the demultiplexer. The digital video receiving apparatus decodes the input multiplexed digital TV signal and outputs a video signal, an audio signal and a data signal corresponding to respective programs.

Abstract: A foveated imaging system, which can be implemented on a general purpose computer and greatly reduces the transmission bandwidth of images has been developed. This system has demonstrated that significant reductions in bandwidth can be achieved while still maintaining access to high detail at any point in an image. The system is implemented with conventional computer, display, and camera hardware. It utilizes novel algorithms for image coding and decoding that are superior both in degree of compression and in perceived image quality and is more flexible and adaptable to different bandwidth requirements and communications applications than previous systems. The system utilizes novel methods of incorporating human perceptual properties into the coding the decoding algorithms providing superior foveation. One version of the system includes a simple, inexpensive, parallel pipeline architecture, which enhances the capability for conventional and foveated data compression.

Abstract: Two additional structures for addition to the Digital Video Broadcasters (DVB) Service Information (SI) for implementation of the MPEG-2 Systems Standard (ISO/IEC 13818-1) are provided: the Logical Channel Table (LCT) and the Composite Channel Table (CCT). The LCT provides the mapping between a Logical Channel Number (LCN) representing a service and the transport stream(TSID)/program number (PN) on which the service can be found. LCT entries may designate either simple conventional channels or Composite Channels. The LCT contains a Composite Channel Indicator (CCI), which when set to ‘1’, indicates that the selected channel is a composite channel. In this case, the LCT entry gives the home channel of the Composite Channel, which provides the CCT to the decoder so that the tuner can be retuned to the actual program designated in the CCT for current viewing.

Abstract: The invention provides a method and apparatus for processing video data signals to generate a time division multiplexed video signal which incorporates a maxima number of fields from successive selected video input signals. The invention provides dual video decoder channels associated synchronisation circuits for generating an early synchronisation signal. The early synchronisation signals are applied to control inputs of the video decoders to enable reading of their output earlier than would normally be possible, avoiding delays in the combining of successive fields of video information in the video TDM signal. The provision of dual channels avoids delays due to lack of synchronisation between the different video sources.