Abstract: A method of controlling intra prediction for decoding or encoding of a video sequence, is performed by at least one processor and includes identifying whether a first intra prediction mode of an above neighboring block of a prediction block is different than a second intra prediction mode of a left neighboring block of the prediction block. The method further includes, based on the first intra prediction mode being identified to be not different than the second intra prediction mode, obtaining a most probable mode (MPM) list including the first intra prediction mode, first immediate modes immediate to the first intra prediction mode and one among second immediate modes respectively immediate to the first immediate modes, and performing the intra prediction on multiple reference lines of the prediction block, using the obtained MPM list, the multiple reference lines being without a first reference line closest to the prediction block.
Abstract: Provided is an apparatus and method for encoding a hologram and evaluating a holographic image quality for an amplitude-modulated hologram. A hologram encoding method may include acquiring three-dimensional (3D) information of a scene or an object; generating hologram information based on the 3D information; deriving a real number hologram function by extracting a real number part and an imaginary number part from the hologram information; determining an intermediate hologram function based on a sign characteristic of the real number hologram function; and determining encoded hologram information based on the intermediate hologram function.
Type:
Grant
Filed:
November 14, 2018
Date of Patent:
May 4, 2021
Assignee:
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
Abstract: Motion compensation requires a significant amount of memory bandwidth, especially for smaller prediction unit sizes. The worst case bandwidth requirements can occur when bi-predicted 4×8 or 8×4 PUs are used. To reduce the memory bandwidth requirements for such smaller PUs, methods are provided for restricting inter-coded PUs of small block sizes to be coded only in a uni-predictive mode, i.e., forward prediction or backward prediction. More specifically, PUs of specified restricted sizes in bi-predicted slices (B slices) are forced to be uni-predicted.
Abstract: Disclosed is a portable magnifier camera with both storage and deployed configurations. In the storage configuration, the entire assembly can be carried via an associated handle. The camera is designed to rest on a desktop, or other planar surface, in the deployed configuration. When deployed, a housing and camera arm are positioned in a cantilevered arrangement over top of an object to be viewed. A camera housing, with an associated camera, is pivotally connected to the camera arm and is positioned over the object upon the camera being placed into a deployed configuration.
Type:
Grant
Filed:
July 8, 2019
Date of Patent:
April 13, 2021
Assignee:
Freedom Scientific, Inc.
Inventors:
Patrick Murphy, Todd Conard, Bradley S. Davis, Carlos M. Rodriguez, Michael Goldenberg
Abstract: According to the present disclosure, an image decoding method performed by a decoding device comprises the steps of: deriving a first intra prediction mode of a current block; deriving neighboring samples including left neighboring samples and upper neighboring samples of the current block; deriving a second intra prediction mode of a target sample on the basis of a location of the target sample and the first intra prediction mode of the current block; and performing prediction for the target sample on the basis of the second intra prediction mode of the target sample.
Abstract: Disclosed are front entry cabs, and power machines with front entry cabs, having a door that is moveable between opened and closed positions and a display oriented in the cab to provide information to the operator both while the door is in the opened and closed positions. In the opened position, the door is positioned within an operator compartment of the cab above the operator seat and below a top of the cab. The display is positioned to not interfere with the door, door linkages, or operator joystick control.
Abstract: Technique for initialization of encoders and decoders. In some cases, the decoder receives a slice and identifies if the slice is either a forward predicted B-slice or a backward predicted B-slice, and not both a forward and backward predicted B-slice, and based upon this identification initializes, using a P-slice technique, a context associated with the slice.
Abstract: A technique for encoding a privacy masked image comprising a plurality of pixels into an encoded image frame of a video stream is disclosed, The technique includes receiving image data of the image, wherein the image data represents the pixel of the image, grouping the pixels of the image into encoding units, wherein each encoding unit comprises a plurality of neighboring pixels; receiving data defining a privacy mask masking part of the image in the interest of personal integrity, and graphical characteristics of the privacy mask including any one or a combination of constant coloring, smearing, and pixelization, identifying all encoding units having one or more pixels located within the privacy mask, extending the privacy mask to be aligned with the identified encoding units to form a redefined privacy mask covering the identified encoding units, generating a privacy masked image by applying the redefined privacy mask and the received graphical characteristics to the image, and encoding the privacy masked i
Abstract: A method for encoding a video bitstream by an encoder device includes generating hypothetical reference decoder parameters in a video parameter set, generating the video parameter set and a video parameter set video usability information syntax structure, and encoding the video bitstream having a constant picture rate. The hypothetical reference decoder parameters include a fixed picture rate general flag, a fixed picture rate coded video sequence flag and a temporal distance, the video parameter set includes a video parameter set video usability information present flag, and the video parameter set video usability information syntax structure includes a picture rate present video parameter set flag, a picture rate present flag, a constant picture rate value and an average picture rate.
Abstract: Volumetric imaging with selective volume illumination (SVI) using light field detection is provided using various systems and techniques. A volumetric imaging apparatus includes a light source configured to emit an illumination light that propagates via an illumination light path to illuminate a three-dimensional (3D) sample; and an optical system arranged with respect to the light source to receive a light field, which comes from the illuminated 3D sample. The light field propagates via a detection light path, and the light source, the optical system, or both; are configurable to perform SVI, which selects a volume of a 3D-confined illumination of the 3D sample based on the 3D sample to be illuminated and a light field detection (LFD) process to be applied. Further, the volume of the 3D-confined illumination is a selected 3D volume of the 3D sample to be particularly excited by the 3D-confined illumination for imaging.
Type:
Grant
Filed:
February 24, 2017
Date of Patent:
January 26, 2021
Assignee:
University of Southern California
Inventors:
Thai V. Truong, Sara Madaan, Daniel B. Holland, Scott E. Fraser
Abstract: Systems and methods for improving target object visibility in captured images can include an imaging sensor for mounting on an aircraft at a fixed position and orientation. A predetermined portion of the aircraft can appear as a region of interest (ROI) at a predefined location across images captured by the imaging sensor. A processor can receive a first image signal captured by the imaging sensor and corresponding to a first image that includes the ROI. The processor can determine a first image intensity range of the ROI in the first image and gain and offset values for modifying the first image or a subsequent image. The processor can cause a second image signal, received from the imaging sensor, to be amplified according to the gain and offset values and cause the region of interest in a second image to have a second image intensity range different from the first image intensity range.
Abstract: A composite panoramic vision system utilized onboard a work vehicle includes a display device, a vehicle-mounted camera array, and a controller. The vehicle-mounted camera array includes, in turn, first and second vehicle cameras having partially overlapping fields of view and positioned to capture first and second camera feeds, respectively, of the work vehicle's exterior environment from different first vantage points. During operation of the composite panoramic vision system, the controller receives the first and second camera feeds from the first and second cameras, respectively; generates a composite panoramic image of the work vehicle's exterior environment from at least the first and second camera feeds; and then presents the composite panoramic image on the display device for viewing by an operator of the work vehicle.
Type:
Grant
Filed:
October 29, 2019
Date of Patent:
January 5, 2021
Assignee:
DEERE & COMPANY
Inventors:
Nathaniel M. Czarnecki, John M. Hageman, Michael G. Kean
Abstract: The disclosed method for performing content-based transcoding of images may include determining an image, calculating an extraction-feature set based on content of the image, calculating a distance measure based on the extraction-feature set according to an image recognition model, determining an image type for the image based on the distance measure, and storing the image according to the image type. When the image type of the image is a first image type, the disclosed computer-implemented method may generate a transcoded image from the image, store the transcoded image at a content-provider computing system, and refrain from storing the image at the content-provider computing system. Alternatively, when the image type of the image is a second image type, the disclosed computer-implemented method may refrain from generating the transcoded image from the image and store the image at the content-provider computing system. Various other methods, systems, and computer-readable media are also disclosed.
Abstract: Embodiments of this application disclose a picture transmission method performed at a computer device. After obtaining a picture, the computer device generates a video sequence by replicating the picture N times, and N being a positive integer. Next the computer device obtains a resolution setting sequence and encodes the N to-be-encoded pictures in the video sequence according to the resolution setting sequence to generate N encoded pictures, each encoded picture having an associated resolution setting. Finally, the computer device sends the N encoded pictures to a decoding computer device. The decoding computer device then decodes and displays the N encoded pictures according to their respective resolution settings from low to high.
Type:
Grant
Filed:
August 20, 2019
Date of Patent:
December 15, 2020
Assignee:
TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
Abstract: In accordance with implementations of the subject matter described herein, a hybrid digital-analog coding scheme is proposed. In general, in accordance with implementations of the subject matter described herein, digital or analog encoding is selected at a level of chunks of a frame rather than at a level of the whole frame. Further, the encoding of a chunk is based on an expected distortion to be caused by analog transmission of the chunk over a communication channel, the distortion being estimated based on a constraint on available transmission resources over the transmission channel.
Abstract: An image processing device includes an acquisition unit that acquires a color image which is imaged by an imaging unit according to incident light including visible light and near-infrared light; an estimation unit that estimates spectral characteristics of the incident light on the basis of color information about the acquired color image, spectral sensitivity characteristics of the imaging unit, and information obtained by modeling the spectral characteristics of the incident light; and a generation unit that generates a visible image and a near-infrared image on the basis of the estimated spectral characteristics of the incident light and the spectral sensitivity characteristics of the imaging unit.
Abstract: An intra-prediction method executed by a decoding device, comprising the steps of receiving 360-degree video information, on the basis of the 360-degree video information, deriving a prediction mode of a target block in a target face of a projected picture, deriving reference samples for the target block in a reference face of the projected picture, and deriving prediction samples of the target block on the basis of the reference samples in the reference face.
Abstract: An image pickup apparatus includes: a wiring board that has a first main surface and a second main surface; an electronic components that include an image pickup device mounted on the wiring board; and conductive wires bonded to the wiring board. The wiring board includes a first area disposed in an XY plane, a second area extended from a distal end portion of the first area and disposed in an XZ plane, a third area extended from a first side surface of the first area and disposed in a YZ plane, and a fourth area extended from a distal end portion of the third area and disposed in the XZ plane. The first main surface of the second area is a distal end surface, and the image pickup device is mounted on the distal end surface.
Abstract: A vehicle can include one or more movably mounted cameras that are able to move to adjust a viewing angle of the camera(s) relative to a body of the vehicle. The camera(s) may be movable by virtue of being coupled to a movable side mirror, such that movement of the side mirror changes a field of view of the camera coupled to the side mirror. For example, the side mirror can be rotated about a rotational axis between a first position in which a field of view of the camera is directed in a first direction (e.g. toward a ground proximate the vehicle), and a second position in which the field of view of the camera is directed in a second direction, different than the first direction (e.g., outward from the vehicle or toward a door of the vehicle).
Abstract: This quantization device includes a processor configured to calculate first costs in a plurality of data length candidates in consideration of the compression ratio and image quality deterioration due to compression of an image. The cost calculation processing is common processing partially performed among the plurality of data length candidates. The processor is configured to perform the common processing for the plurality of data length candidates, execute the distributed processes in parallel, and determine, as an optimal data length, a single data length for which a minimum cost is calculated among the first costs of the plurality of data length candidate.