Abstract: Systems and methods are configured to adjust the timing of rendered frame scanout in response to fluctuations in a variable frame rate at which source frames are rendered.

Abstract: A stereoscopic production solution, e.g., for live events, that provides 3D video asset distribution to multiple devices and networks is described. In some embodiments, live or recorded 3D video content may be accessible by different service providers with different subscribers/users and protocols across a network of the content provider. A first video signal corresponding to a first video feed for one eye of a viewer may be received and a second video signal corresponding to a second video feed for the second eye of the viewer may be received. The first video signal and the second video signal may be encoded. The encoded first video signal and the encoded second video signal may be transmitted independently over a network. The two video signals may be received and frame synced at an off-site location for eventual rendering to a display device.

Abstract: A receiving and sending integrated chip for an OLT, which relates to the field of integrated circuits and optical communications. The present invention arms at resolving the problem of high production costs and long production cycle due to the fact that the functions of a limiting amplifier and a laser driver of a traditional OLT end optical module based on a GPON and an EPON are implemented by means of two circuit chips. The present invention provides two solutions. The first solution is designed based on the EPON, a transmitter threshold value configuration mode is that the threshold value configuration is implemented after an upper computer and a slave I2C circuit in the chip cooperate to complete electrifying, and LOS signal determination in a receiver can be automatically reset by means of a chip internal module.

Abstract: The disclosed method includes accessing video content encoded at a specified frame rate, and determining a refresh rate for an electronic display on which the video content is to be presented. The method next includes specifying a time interval for the video content over which frame rate conversion is to be applied to synchronize the video content frame rate with the electronic display refresh rate. The method also includes presenting the video content on the electronic display where the playback speed is adjusted for a first part of the interval. At this adjusted speed, the interval is played back using original video frames and multiple frame duplications. The presenting also adjusts playback speed of a second part of the interval. At the adjusted speed, the interval is played back using the original frames and a different number of frame duplications. Various other methods, systems, and computer-readable media are also disclosed.

Abstract: An embodiment detects where frames within a video have been added, deleted, or changed. The embodiment tracks the modifications through subsequent versions of the source video, and retains various metadata (corresponding to the individual edits) that describes the context and specifics of the edits. In an embodiment only changes to the original video need be tracked by preserving only those clips that have been added, removed, or changed. This ability enables a video editor to maintain the various changes made to a video and see the history of changes while alleviating much of the file storage associated with large, high-quality videos. Other embodiments are described herein.

Abstract: A Holocam Orb system uses multiple Holocam Orbs (Orbs) within a real-life environment to generate an artificial reality representation of the real-life environment in real time. Each Orb is an electronic and software unit that includes a local logic module, a local CPU and multiple synchronous and asynchronous sensors, include stereo cameras, time-of-flight sensors, inertial measurement units and a microphone array. Each Orb synchronizes itself to a common master clock, and packages its asynchrony data into data bundles whose timings are matched to frame timing of synchronous sensors, and all gathered data bundles and data frames are given a time stamp using a reference clock common to all Orbs. The overlapping sensor data from all the Orbs is combined to create the artificial reality representation.

Abstract: Methods and systems to release network bandwidth for a new video stream. One method includes the following steps: receiving, by a first real-time video encoder (RT-VE), a first incoming high-definition uncompressed video (HD-UV), compressing it into a first compressed video using a first low compression ratio, and sending it over a first network path to a first real-time video decoder (RT-VD). Extracting, by the first RT-VD, an outgoing HD-UV from the first compressed video. Inferring that after establishing the first network path, and as a result of insufficient bandwidth on a common link comprised in the first network path, a second RT-VE cannot send a second compressed video to a second RT-VD over a second network path that includes the common link. And Increasing on-the-fly the first compression ratio in proportion to the insufficient bandwidth, in a manner that is visually lossless for a human viewing the outgoing HD-UV.

Abstract: Example embodiments provide systems and methods for accelerating digital content playback based on speech. A content acceleration system electronically accesses digital content. The system analyzes the digital content to detect at least one audio portion within the digital content, each of the at least one audio portion comprising speech. The system creates at least one digital content segment from the digital content based on the at least one audio portion, whereby a beginning of each digital content segment of the at least one digital content segment coincides with a beginning of a corresponding audio portion of the at least one audio portion. The system then accelerates playback of the digital content by fast forwarding through parts of the at least one digital content segment where speech is absent.

Abstract: Replacement of an encoded audio output signal is disclosed. In one example, a data set comprising a first encoded audio output signal and associated pre-stored digital audio input signals captured with a microphone array of an apparatus is received. An intermediate audio signal is produced by applying an audio processing modification to the digital audio input signals. The audio processing modification utilizes apparatus specific information. The specific audio processing modification to use is determined based on user input or other information. The intermediate audio signal is encoded to produce a second encoded audio output signal. The first encoded audio output signal is replaced with the second encoded audio output signal in the data set.

Abstract: A storage system of original frames of monitor data and a storage method thereof are provided. The storage system includes a monitor sensor, an event marking circuit, a data storage circuit and a frame processing circuit. The monitor sensor provides a plurality of original frames. The event marking circuit has an input terminal coupling to the monitor sensor and an output terminal, and is used for determining an event intensity of a corresponding one of the original frames and marks the event intensity on the corresponding original frame. The data storage circuit is coupled to the output terminal and is used for completely storing the original frames. The frame processing circuit is coupled to the data storage circuit and is used for checking whether the original frames within the data storage circuit are deleted according to the event intensities.

Abstract: Disclosure of the present invention provide a method and an apparatus for processing a video stream. The method includes: acquiring a request message from a terminal, where the request message carries address information of multiple sub video screens, according to the address information, acquiring multiple substreams corresponding to the multiple sub video screens in a one-to-one manner, merging the multiple substreams into a single stream, and generating an indication message used to indicate a picture parameter of the single stream, and sending the single stream and the indication message to the terminal, so that the terminal decodes the single stream and displays decoded multiple sub video screens according to the indication message.

Abstract: A system for at least substantially plesiochronously operating a receiver in communication with a plurality of cameras (e.g., at least two plesiochronously operational cameras) is described. In one or more implementations, the system includes a plurality of cameras. Each camera is configured to generate a signal for transmission via a communications link, and the signal comprises data packets encoded in a forward channel. The system also includes a receiver communicatively coupled to the plurality of cameras via the single-ended communications link. The receiver is configured to generate a synchronization data based upon at least one of the data packets. The receiver is also configured to modulate the signal to encode the synchronization data in a reverse channel so that the signal comprises the forward channel data and the reverse channel data simultaneously.

Abstract: Methods and apparatus for processing and displaying caption information associated with a video program are provided. The caption information is extracted from a video signal and different captions are rendered in sequence for different segments of the video program. A plurality of the different captions is blended in a form for simultaneous display superimposed on video images during one of the different segments of the video program. The different captions may be the latest caption corresponding to the current segment of video and a previous caption corresponding to a previous video segment. These different captions can be displayed such that they overlie each other and such that their opacity is different. In this manner, a viewer is able to have a prolonged period of time to read captions and can readily distinguish the current caption from the previous caption.

Abstract: Embodiments of the present invention can measure internal buffer levels (e.g., queue levels) within the sink device and dynamically adjust step size values responsive to buffer level conditions that dynamically alter the sink frame rate. As such, embodiments of the present invention can find an equivalent of the source device frame rate on the sink device based on the sink device's own clock speed. In this manner, transmission bandwidth may be preserved as clocking information does not to need to be continuously communicated between the source device and the sink device.

Abstract: A synchronization relationship determiner comprising an input visual information signal receiver configured to receive an input visual information signal, and a capture signal receiver configured to receive a capture signal generated by a capture device. The synchronization relationship determiner is configured to determine a synchronization relationship between the input visual information signal and the capture signal. The synchronization relationship determination is signal based.

Abstract: Techniques for synchronizing audio and video content for presentation to a user at a same rate are provided. Streams of content from two or more sources of media, each media source having an associated clock, are synchronized by a synchronizing component and processor with respect to a master clock. As well, techniques are provided for ensuring that output devices are synchronized at preview startup. That is, such techniques ensure that the output devices start playing the media at the same time as well as at the same rate.

Abstract: The present disclosure pertains to a method for designing cascaded bit sequences for cascaded digital displays. The method avoids unwanted interactions between cascaded sequences in cascaded digital displays. By using sequences with a particular structure, cascaded sequences can be designed such that no sequence is affected by the others. The following rules must be followed in constructing the sequence. First, the display devices must be frame-locked, so that the timing relationship between the sequences is maintained throughout each frame. Second, for each display device, the ratio of bit plane weights must remain constant, regardless of the pixel data displayed on the other display device(s). Third, the amount of bit plane skew must remain constant, regardless of the pixel data displayed on the other display device(s). Fourth, bit plane phased leakage must be compensated for or avoided.

Abstract: A method for detecting motion in video fields of video data, comprises the steps of: calculating texture information for a pixel in the video fields; determining a threshold value as a function of the calculated texture information; calculating a differential value for the pixel; and detecting motion in the video fields as a function of the determined threshold value and the calculated differential value.

Abstract: Audio data and video data are processed to determine one or more audible events and visual events, respectively. Contemporaneous presentation of the video data with audio data may be synchronized based at least in part on the audible events and the visual events. Audio processing functions, such as filtering, may be initiated for audio data based at least in part on the visual events.

Abstract: Embodiments of the present invention disclose a method and an apparatus for obtaining a video quality parameter and an electronic device. The method includes dividing a target video segment into at least one video subsegment, where duration of every video subsegment is at least time perceivable by human eyes; obtaining a video quality parameter of the video subsegment; and processing the video quality parameter of the video subsegment, and obtaining a video quality parameter of the target video segment.

Abstract: A measuring device for measuring a response speed of a display panel is provided. The measuring device includes a microcontroller and at least one photo sensor. The microcontroller provides a control command, according to which a display controller of the display panel provides test pattern to the display panel. The photo sensor senses a test frame displayed corresponding to the test pattern by the display panel, and provides a corresponding sensing signal associated with brightness and a response signal. According to the response signal, the response speed of the display panel is calculated.

Abstract: An exemplary embodiment of the present invention provides a latency stabilization system for stabilizing the display latency between a source and a renderer over an IP network. The latency stabilization system comprises a frequency syntonization module, a frequency lock detection module, and a phase correction module. The frequency syntonization module can be configured to syntonize a frequency of a source signal from the source and a frequency of a display signal to be displayed on the renderer. The frequency lock detection module can be configured to detect whether the frequency of the source signal and the frequency of the display signal are locked. The phase correction module can be configured to, synchronize a phase of the source signal and a phase of the display signal, and generate correction data based in part on synchronization of the phase of the source signal and the phase of the display signal.

Abstract: Smaller halftone tiles are implemented on a first modulator of a dual modulation projection system. This techniques uses multiple halftones per frame in the pre-modulator synchronized with a modified bit sequence in the primary modulator to effectively increase the number of levels provided by a given tile size in the halftone modulator. It addresses the issue of reduced contrast ratio at low light levels for small tile sizes and allows the use of smaller PSFs which reduce halo artifacts in the projected image and may be utilized in 3D projecting and viewing.

Abstract: A system for constructing seamlessly viewable multimedia content from selectably presentable multimedia content blocks includes a block definition module for facilitating creation and modification of the content blocks. The block definition module includes a media assignment submodule for associating a synchronized audio and video segment with a content block. Also included is a block linking submodule for creating seamless connections between content blocks, whereby a transition between the connected blocks occurs substantially without interruption upon viewing the multimedia content. The block definition module further includes a layer submodule for associating an interactive layer having interactive controls with the content block.

Abstract: A method and apparatus for increasing the effective contrast ratio and brightness yields for digital light valve image projectors using a variable luminance control mechanism (VLCM), associated with the projector optics, for modifying the light output and provide a correction thereto; and an adaptive luminance control module (ALCM) for receiving signals from the video input board, the adaptive luminance control module producing a signal on a VLCM bus connecting the variable luminance control mechanism and the adaptive luminance control module, the signal causing the variable luminance control mechanism to change the luminance of the light output and provide a corrected video signal for the projector.

Abstract: Spatial or temporal interpolation may be performed upon source video content to create interpolated video content. A video signal including the interpolated video content and non-interpolated video content (e.g. the source video content) may be generated. At least one indicator for distinguishing the non-interpolated video content from the interpolated video content may also be generated. The video signal and indicator(s) may be passed from a video source device to a video sink device. The received indicator(s) may be used to distinguish the non-interpolated video content from the interpolated video content in the received video signal. The non-interpolated video content may be used to “redo” the interpolation or may be recorded to a storage medium.

Abstract: According to one embodiment, an electronic device includes a reproduction controller and a transmitter. The reproduction controller is configured to reproduce a first type of information of a first content. The first content includes a plurality of types of information. The transmitter is configured to transmit an instruction to reproduce a second type of information of the first content to other electronic device.

Abstract: A picture signal processor includes: a frame-rate conversion section performing a frame-rate-increasing conversion, which brings an over-double frame rate, on each of a plurality of time-series picture streams each including a plurality of unit pictures, and providing frame-rate-converted picture streams to a display section which displays pictures through performing time-divisional switching of picture streams from one to another in order; and a shutter control section controlling a shutter eyeglass device to perform an open/close operation in synchronization with a display switching timing between the frame-rate-converted picture streams in the display section.

Abstract: A method for identifying state of macro block of de-interlacing computing and an image processing apparatus are provided, the method is as follows. A video frame is divided into a plurality of regions, where each of the regions includes a plurality of macro blocks. Then, a basic threshold corresponding to each of the regions is provided according to a position of each of the regions in the video frame, and a first macro block is identified to be a first type macro block or a second type macro block according to the basic threshold corresponding to one of the regions where the first macro block of the macro blocks locates. Then, a corresponding de-interlacing computing step is performed on the first macro block according to an result that the first macro block is identified as the first type macro block or the second type macro block.

Abstract: A method for de-interlacing interlaced video includes receiving a first video field and a second video field of an interlaced video frame, generating a first video frame from the first video field and a first synthesized video field, where video data of the first synthesized video field is based exclusively on video data of the first and second video fields, generating a second video frame from the second video field and a second synthesized video field, where video data of the second synthesized video field is based exclusively on the video data of the first and second video fields, and outputting two de-interlaced video frames for every received interlaced video frame. The first (second) synthesized video field is generated by combining image data from the second (first) video field with image data from corresponding lines of an up-scaled first (second) field generated by a scaler.

Abstract: A receiving apparatus is disclosed. The receiving apparatus comprises: a first receiving unit receiving first multimedia data, to which a first time code is added by frame, through a broadcast network; a second receiving unit receiving second multimedia data, to which a second time code is added by frame, through an IP network; a first signal processor for signal processing the first multimedia data and generating a first video frame; a second signal processor for signal processing the second multimedia data and generating a second video frame; a controller for comparing the first time code of the first multimedia data with the second time code of the second multimedia data, and calculating a difference in time stamp information on video frames having matching time codes; and a rendering unit for using the difference in time stamp information to read respective video frames that are synchronized from among the generated first video frame and the second video frame, and performing rendering.

Abstract: Embodiments of the invention are generally directed to video frame synchronization. An embodiment of a method includes receiving a first video data stream from a first source at a first port of a multi-port device, a first video frame of the first video data stream arriving at the first port at a first arrival time, and receiving a second video data stream from a second source at a second port of the multi-port device, a second video frame of the second video data stream arriving at the second port at a second arrival time. The method further includes determining an offset between the first arrival time and the second arrival time, determining one or more correction factors based at least in part on the offset, the one or more correction factors including a first correction factor for the first source, and sending a first command to the first source to modify a time of transmission by the first source of a third video frame following the first frame using the correction factor.

Abstract: The invention concerns a device for transmitting packets in a packet communication network comprising at least two stations, characterized in that it includes means for: extract image cues from a synchronizing signal, initializing a first counter based on said image cues, initializing a second counter every “m” zero crossing of the first counter, sampling the second counter at all the Tech periods, where Tech is derived from a time base synchronized on all the network stations, and transmitting packets containing the samples in the network. The invention also concerns a device for receiving packets in a packet communication network comprising at least two stations.

Abstract: Embodiments of the invention are generally directed to video frame synchronization. An embodiment of a method includes receiving a first video data stream from a first source at a first port of a multi-port device, a first video frame of the first video data stream arriving at the first port at a first arrival time, and receiving a second video data stream from a second source at a second port of the multi-port device, a second video frame of the second video data stream arriving at the second port at a second arrival time. The method further includes determining an offset between the first arrival time and the second arrival time, determining one or more correction factors based at least in part on the offset, the one or more correction factors including a first correction factor for the first source, and sending a first command to the first source to modify a time of transmission by the first source of a third video frame following the first frame using the correction factor.

Abstract: According to embodiments, there is provided a method, a mobile video mixing system and a non-transitory computer readable memory for mixing of image frame sequences depicting a scene or an event, by receiving an image frame sequence from a first video source; receiving an image frame sequence from a second video source; mixing the received video frame sequences by, at each time instance: receive or retrieve a parameter representing the context of the use of the mobile video mixing system; select a video mixing mode, from a selection of at least two different video mixing modes, dependent on the context parameter; and mix the received video frame sequences according to the selected video mixing mode.

Abstract: Provided is an OFDM receiver which extracts a time sync signal from a prefix having a symmetric structure. The OFDM receiver, according to exemplary embodiments of the present invention, generates the sync signal (e.g., start point) of a symbol by using only the MSB (e.g., sign bit) of the cyclic prefix of an OFDM symbol, reducing the overhead of a logic circuit for generating the sync signal of the symbol.

Abstract: A picture signal processing unit having a first and a second double rate conversion section, a storage section, and a quadruple rate conversion section is provided. The first double rate conversion section inserts a first interpolation frame between a couple of successive original frames to output the original frames and the first interpolation frames. The second double rate conversion section generates a second and a third interpolation frames and allocates the second and the third interpolation frames between the couple of successive original frames to output the second and the third interpolation frames. The storage section stores the original frame and the first to the third interpolation frames. The quadruple rate conversion section sequentially reads out the original frame and the first to the third interpolation frames from the storage section in a quadruple rate to output the original frame and the first to the third interpolation frames.

Abstract: After a sending-side clock and a clock 34 of a communication unit 33 on a receiving side are synchronized with each other, the first vertical synchronizing signal is generated in accordance with the sending-side clock, and movie data 5 representing a movie is generated by generating frame data in accordance with the generated first vertical synchronizing signal. Start time data indicating the time for starting generation of the movie data 5 and the movie data 5 are sent as communication data from the sending side to the communication unit 33. Then, the second vertical synchronizing signal is generated in accordance with the clock 34 of the communication unit 33 and the start time data received as the communication data. The frame data 50 included in the movie data 5 received as the communication data is presented in accordance with the second vertical synchronizing signal.

Abstract: Techniques for synchronizing audio and video content for presentation to a user at a same rate are provided. Streams of content from two or more sources of media, each media source having an associated clock, are synchronized by a synchronizing component and processor with respect to a master clock. As well, techniques are provided for ensuring that output devices are synchronized at preview startup. That is, such techniques ensure that the output devices start playing the media at the same time as well as at the same rate.

Abstract: A signal processing method by adding odd and even field SYNC data for neutralized effects including the steps of receiving an odd field SYNC data of an odd field, which is different at a certain data segment when compared with an even field SYNC data of an even field, and the even field SYNC data of the even field; adding the odd field SYNC data and the even field SYNC data to neutralize the odd and even field SYNC data so as to generate a combined odd and even field SYNC data; and performing a predetermined signal processing on an input signal according to the combined odd and even field SYNC data.

Abstract: It is difficult to implement a conventional phase lock loop circuit in a sink device within an HDMI system because the low frequency input causes the conventional phase lock loop circuit to absorb unnecessary noise during a long waiting period. Therefore, the present invention provides a low jitter clock regenerator comprises: an input clock; a divider to divide said input clock into a slower clock; a phase lock loop circuit to regenerate said slower clock to a reference clock; and a parameter transformer to tune said divider and said phase lock loop circuit to increase the adjustment speed of said phase lock loop circuit. The present invention also provides a method to reorganize parameters in order to create new parameters which are better suitable for a clock recovery circuit in a sink device within an HDMI system.

Abstract: An image capturing apparatus selects one of image capturing conditions to be used for capturing images as a reference condition when a total of image capturing time of one frame in each image capturing condition to be used for capturing images is longer than one frame period at a predetermined frame rate, and captures images at the predetermined frame rate under the reference condition, and captures images at a frame rate lower than the predetermined frame rate under the other image capturing conditions. A playback apparatus detects a motion between frames of a moving image captured under the reference condition when the image capturing condition of the playback moving image is not the reference condition, and generates an interpolation frame for interpolating between frames of the playback moving image based on the detected motion.

Abstract: An image-data processing apparatus includes a writer which writes image data into a memory according to a non-interlaced-scanning or an interlaced-scanning of each N line. An updater updates a cumulative zoom coefficient by accumulating, for each line, a decimal portion of the cumulative zoom coefficient to a first numerical value corresponding to the zoom coefficient. An accumulator accumulates, for each line, a second numerical value corresponding to an integer portion of the cumulative zoom coefficient. A reader reads out image data in a line corresponding to an accumulated value of the accumulator. A first setter sets N-times the zoom coefficient to the first numerical value in the non-interlaced-scanning, and sets the zoom coefficient to the first numerical value in the interlaced-scanning. A second setter sets an integer portion to the second numerical value in the non-interlaced-scanning, and sets N-times the integer portion to the second numerical value in the interlaced-scanning.

Abstract: As set forth herein, a computer-based method is employed to align a sequences of images. Metadata associated with images from two or more sources is received and a time stamp is extracted from the metadata. The images are sorted into sequences based at least in part upon the image source. The similarity of images from disparate sequences is measured and image pairs from disparate sequences with a similarity greater than a predetermined threshold are identified. A sequence of images is aligned by minimizing the misalignment of pairs.

Abstract: A method, and apparatus, and logic encoded in one or more computer-readable media to carry out a method. The method is to sample analog video at a sample clock rate and at a phase selected from a set of phases based on a quality measure determined from the sampled video. The quality measure is based on statistics of pixel to pixel differences in a coordinate of the generated digital video that have a magnitude exceeding a pre-determined threshold.

Abstract: A video signal synchronization signal generating apparatus for making a display reference synchronization signal Vb that serves as a reference of video display and has a first frequency and an input synchronization signal Vi that constitutes images and has a second frequency synchronized with each other, the apparatus including: a frequency ratio generating section configured to divide a frequency that is double the first frequency by the second frequency to calculate a frequency ratio n; a Vx generation comparator circuit section configured to generate coincidence signal Vx? having pulses that are inserted by equally dividing one period of the input synchronization signal Vi by the frequency ratio n; and a Vx generation circuit section configured to remove the alternate pulses of the coincidence signal Vx? to generate synchronization signal Vx of a same phase as the phase of the input synchronization signal Vi.

Abstract: A system synchronizes a video presentation to a master time reference (e.g., a corresponding audio presentation) by modifying a video cadence. The system detects when a displayed video leads or lags a master time reference by a programmable level or more. The system minimizes the synchronization error by inserting or removing source video frames to or from a frame cadence pattern.

Abstract: A set top box (STB), which communicates with a display device and a number of audio-visual apparatuses, comprises one or more media processors, a video multiplexer, an audio multiplexer, and a transmitting module. The media processors receive a number of program channels selected by a number of users and identities corresponding to the audio-visual apparatuses, and demodulate the program channels into video streams and corresponding audio streams. The video multiplexer composes the video streams into an integrated video stream and the audio multiplexer composes the audio streams into an integrated audio stream. The STB transmits the integrated video stream and the integrated audio stream to the audio-visual apparatuses.

Abstract: Aspects of the present invention relate to creation, modification and implementation of dither pattern structures applied to an image to diminish contouring artifacts. Some aspects relate to dither pattern structures with pixel values in a first color channel pattern that are spatially dispersed from pixel values in a corresponding pattern in a second color channel. Some aspects relate to application. Some aspects relate to systems and apparatus for creation and application of these dither pattern structures comprising pixel values dispersed across color channels.

Abstract: Provided are a method and apparatus for reproducing digital broadcasting. The method includes parsing an input video stream to extract a presentation time stamp (PTS) and a compressed frame and decoding the extracted compressed frame to generate frames sequentially. If a PTS corresponding to a current frame does not exist, a virtual PTS is generated based on the extracted PTS The extracted PTS or the virtual PTS is compared with a system time clock (STC) in synchronization with a vertical synchronization signal and an output time of a display frame is determined.