CODING AND DECODING OF INTERLEAVED IMAGE DATA
Granted: March 7, 2024
Application Number:
20240080479
Sampled data is packaged in checkerboard format for encoding and decoding. The sampled data may be quincunx sampled multi-image video data (e.g., 3D video or a multi-program stream), and the data may also be divided into sub-images of each image which are then multiplexed, or interleaved, in frames of a video stream to be encoded and then decoded using a standardized video encoder. A system for viewing may utilize a standard video decoder and a formatting device that de-interleaves the…
FRAME-RATE SCALABLE VIDEO CODING
Granted: March 7, 2024
Application Number:
20240080465
Methods and systems for frame rate scalability are described. Support is provided for input and output video sequences with variable frame rate and variable shutter angle across scenes, or for input video sequences with fixed input frame rate and input shutter angle, but allowing a decoder to generate a video output at a different output frame rate and shutter angle than the corresponding input values. Techniques allowing a decoder to decode more computationally-efficiently a specific…
PERCEPTUALLY-BASED LOSS FUNCTIONS FOR AUDIO ENCODING AND DECODING BASED ON MACHINE LEARNING
Granted: March 7, 2024
Application Number:
20240079019
Computer-implemented methods for training a neural network, as well as for implementing audio encoders and decoders via trained neural networks, are provided. The neural network may receive an input audio signal, generate an encoded audio signal and decode the encoded audio signal. A loss function generating module may receive the decoded audio signal and a ground truth audio signal, and may generate a loss function value corresponding to the decoded audio signal. Generating the loss…
METHODS AND SYSTEMS FOR RENDERING OBJECT BASED AUDIO
Granted: March 7, 2024
Application Number:
20240079015
Methods for generating an object based audio program, renderable in a personalizable manner, and including a bed of speaker channels renderable in the absence of selection of other program content (e.g., to provide a default full range audio experience). Other embodiments include steps of delivering, decoding, and/or rendering such a program. Rendering of content of the bed, or of a selected mix of other content of the program, may provide an immersive experience. The program may include…
SIGNAL RESHAPING FOR HIGH DYNAMIC RANGE SIGNALS
Granted: February 29, 2024
Application Number:
20240073459
In a method to improve backwards compatibility when decoding high-dynamic range images coded in a wide color gamut (WCG) space which may not be compatible with legacy color spaces, hue and/or saturation values of images in an image database are computed for both a legacy color space (say, YCbCr-gamma) and a preferred WCG color space (say, IPT-PQ). Based on a cost function, a reshaped color space is computed so that the distance between the hue values in the legacy color space and rotated…
METHOD AND DEVICE FOR ENCODING AND DECODING IMAGE USING MOTION VECTOR RESOLUTION SCALING
Granted: February 29, 2024
Application Number:
20240073444
A video encoding method according to an embodiment of the present invention includes generating header information that includes information about resolutions of motion vectors of respective blocks, determined based on motion prediction for a unit image. Here, the header information includes flag information indicating whether resolutions of all motion vectors included in the unit image are integer-pixel resolutions. Further, a video decoding method according to another embodiment of the…
MULTIPLE STAGE MODULATION PROJECTOR DISPLAY SYSTEMS HAVING EFFICIENT LIGHT UTILIZATION
Granted: February 29, 2024
Application Number:
20240073357
Dual or multi-modulation display systems comprising a first modulator and a second modulator are disclosed. The first modulator may comprise a plurality of analog mirrors (e.g. MEMS array) and the second modulator may comprise a plurality of mirrors (e.g., DMD array). The display system may further comprise a controller that sends control signals to the first and second modulator. The display system may render highlight features within a projected image by affecting a time multiplexing…
DETERMINING DIALOG QUALITY METRICS OF A MIXED AUDIO SIGNAL
Granted: February 29, 2024
Application Number:
20240071411
Disclosed is a method for determining one or more dialog quality metrics of a mixed audio signal comprising a dialog component and a noise component, the method comprising separating an estimated dialog component from the mixed audio signal by means of a dialog separator using a dialog separating model determined by training the dialog separator based on the one or more quality metrics; providing the estimated dialog component from the dialog separator to a quality metrics estimator; and…
ORCHESTRATION OF ACOUSTIC DIRECT SEQUENCE SPREAD SPECTRUM SIGNALS FOR ESTIMATION OF ACOUSTIC SCENE METRICS
Granted: February 15, 2024
Application Number:
20240056757
Some methods may involve receiving a first content stream that includes first audio signals, rendering the first audio signals to produce first audio playback signals, generating first direct sequence spread spectrum (DSSS) signals, generating first modified audio playback signals by inserting the first DSSS signals into the first audio playback signals, and causing a loudspeaker system to play back the first modified audio playback signals, to generate first audio device playback sound.…
BINAURAL SIGNAL POST-PROCESSING
Granted: February 15, 2024
Application Number:
20240056760
A method of audio processing includes performing spatial analysis on a binaural signal to estimate level differences and phase differences characteristic of a binaural filter of the binaural signal, performing object extraction on the binaural audio signal using the estimated level and phase differences to generate a left/right main component signal and a left/right residual component signal. The system may process the left/right main and left/right residual components differently using…
METHOD FOR AND APPARATUS FOR DECODING/RENDERING AN AMBISONICS AUDIO SOUNDFIELD REPRESENTATION FOR AUDIO PLAYBACK USING 2D SETUPS
Granted: February 15, 2024
Application Number:
20240056755
Improved methods and/or apparatus for decoding an encoded audio signal in soundfield format for L loudspeakers. The method and/or apparatus can render an Ambisonics format audio signal to 2D loudspeaker setup(s) based on a rendering matrix. The rendering matrix has elements based on loudspeaker positions and wherein the rendering matrix is determined based on weighting at least an element of a first matrix with a weighting factor ? = 1 L . The first matrix is determined…
MULTISOURCE MEDIA DELIVERY SYSTEMS AND METHODS
Granted: February 15, 2024
Application Number:
20240056649
A method for delivering media content to one or more clients over a distributed system is disclosed. The method may include generating a plurality of network-coded symbols from a plurality of original symbols representing a first media asset. The method may further include generating an original plurality of coded variants of the first media asset. The method may further include distributing a first coded variant of the original plurality of coded variants to a first cache on a first…
METHOD FOR ENCODING AND DECODING IMAGE USING ADAPTIVE DEBLOCKING FILTERING, AND APPARATUS THEREFOR
Granted: February 15, 2024
Application Number:
20240056613
Disclosed is an encoding/decoding method and apparatus related to adaptive deblocking filtering. There is provided an image decoding method performing adaptive filtering in inter-prediction, the method including: reconstructing, from a bitstream, an image signal including a reference block on which block matching is performed in inter-prediction of a current block to be encoded; obtaining, from the bitstream, a flag indicating whether the reference block exists within a current picture…
SOURCE COLOR VOLUME INFORMATION MESSAGING
Granted: February 15, 2024
Application Number:
20240056610
Methods are described to communicate source color volume information in a coded bitstream using SEI messaging. Such data include at least the minimum, maximum, and average luminance values in the source data plus optional data that may include the color volume x and y chromaticity coordinates for the input color primaries (e.g., red, green, and blue) of the source data, and the color x and y chromaticity coordinates for the color primaries corresponding to the minimum, average, and…
ORCHESTRATION OF ACOUSTIC DIRECT SEQUENCE SPREAD SPECTRUM SIGNALS FOR ESTIMATION OF ACOUSTIC SCENE METRICS
Granted: February 8, 2024
Application Number:
20240048931
Some methods may involve receiving a first content stream that includes first audio signals, rendering the first audio signals to produce first audio playback signals, generating first direct sequence spread spectrum (DSSS) signals, generating first modified audio playback signals by inserting the first DSSS signals into the first audio playback signals, and causing a loudspeaker system to play back the first modified audio playback signals, to generate first audio device playback sound.…
PERSONALIZED HRTFS VIA OPTICAL CAPTURE
Granted: February 8, 2024
Application Number:
20240048932
An apparatus and method of generating personalized HRTFs. The system is prepared by calculating a model for HRTFs described as the relationship between a finite example set of input data, namely anthropometric measures and demographic information for a set of individuals, and a corresponding set of output data, namely HRTFs numerically simulated using a high-resolution database of 3D scans of the same set of individuals. At the time of use, the system queries the user for their…
ORCHESTRATION OF ACOUSTIC DIRECT SEQUENCE SPREAD SPECTRUM SIGNALS FOR ESTIMATION OF ACOUSTIC SCENE METRICS
Granted: February 8, 2024
Application Number:
20240048931
Some methods may involve receiving a first content stream that includes first audio signals, rendering the first audio signals to produce first audio playback signals, generating first direct sequence spread spectrum (DSSS) signals, generating first modified audio playback signals by inserting the first DSSS signals into the first audio playback signals, and causing a loudspeaker system to play back the first modified audio playback signals, to generate first audio device playback sound.…
PERSONALIZED HRTFS VIA OPTICAL CAPTURE
Granted: February 8, 2024
Application Number:
20240048932
An apparatus and method of generating personalized HRTFs. The system is prepared by calculating a model for HRTFs described as the relationship between a finite example set of input data, namely anthropometric measures and demographic information for a set of individuals, and a corresponding set of output data, namely HRTFs numerically simulated using a high-resolution database of 3D scans of the same set of individuals. At the time of use, the system queries the user for their…
ACOUSTIC FEEDBACK MANAGEMENT IN REAL-TIME AUDIO COMMUNICATION
Granted: February 1, 2024
Application Number:
20240040043
Disclosed is a method for managing acoustic feedback in real-time audio communications in a communications system, the method comprising determining, by means of a detection module, whether a first communication device is in loudspeaker mode, whether the first communication device is in real-time audio communications with a second communication, and whether the first communication device and the second communication device are in a same acoustic space. Upon determining that this is the…
VOLUME LEVELER CONTROLLER AND CONTROLLING METHOD
Granted: February 1, 2024
Application Number:
20240039499
Volume leveler controller and controlling method are disclosed. In one embodiment, A volume leveler controller includes an audio content classifier for identifying the content type of an audio signal in real time; and an adjusting unit for adjusting a volume leveler in a continuous manner based on the content type as identified. The adjusting unit may configured to positively correlate the dynamic gain of the volume leveler with informative content types of the audio signal, and…
