Abstract: Stitching of multiple images into a composite representation can be performed using a set of stitching parameters determined based, at least in part, upon a subjective stitching quality assessment value. A stitched image can be compared against its constituent images to obtain one or more objective quality metrics. These objective quality metrics can be fed, as input, to a trained classifier, which can infer a subjective quality assessment metric for the stitched (or otherwise composited) image. This subjective quality assessment metric can be used to adjust one or more compositing parameter values in order to provide at least a minimum subjective quality assessment value for composited images.

Abstract: A video coding method and device, according to the present invention, determine whether motion compensation is performed by sub-block unit, determine a search area for motion compensation of a current block, calculate a plurality of SAD candidates with respect to the search area, derive delta motion information of the current block on the basis of the plurality of SAD candidates, and can compensate for motion information of the current block by using pre-generated motion information and the delta motion information of the current block.

Abstract: An example device for decoding video data includes one or more processors configured to determine merge mode information for a current block, the merge mode information indicating that motion information for a current block is to be predicted using a first predictor motion vector and a second predictor motion vector; determine a first motion vector difference (MVD) for the first predictor motion vector and a second MVD for the second predictor motion vector, the second MVD being different than the first MVD; form a first motion vector equaling a combination of the first motion vector predictor and the first MVD; form a second motion vector equaling a combination of the second motion vector predictor and the second MVD; generate a prediction block using the first motion vector and the second motion vector; and decode the current block using the prediction block.

Abstract: The embodiments of the disclosure provide a method for dynamically controlling shooting parameters of a camera and a tracking device. The method includes: determining a plurality of time frames, wherein the time frames include a plurality of first time frames and a plurality of second time frames; controlling the camera of the tracking device to shoot a first image with a first exposure parameter in each of the first time frames and accordingly performing an environment detection; controlling the camera of the tracking device to shoot a second image with a second exposure parameter in each of the second time frames and accordingly performing a first specific detection, wherein the second exposure parameter is lower than the first exposure parameter.

Abstract: Techniques for facilitating wide field of view (FOV) imaging systems and methods are provided. In one example, an imaging device includes a lens system including a first lens group and a second lens group. The first lens group includes at least one spherical lens element and is associated with a first FOV. The first lens group is configured to transmit electromagnetic radiation associated with a scene. The second lens group includes wafer level optics aspherical lens elements and is associated with a second FOV narrower than the first FOV. The second lens group is configured to transmit the electromagnetic radiation received from the first lens group. The imaging device further includes a detector array including detectors. Each detector is configured to receive a portion of the electromagnetic radiation from the lens system and generate a thermal image based on the electromagnetic radiation. Related methods and systems are also provided.

Abstract: A processing system comprising a first imaging system configured to capture a first image based on a terahertz wave from an inspection target, a second imaging system configured to capture a second image of the inspection target based on an electromagnetic wave of a wavelength different from the terahertz wave, and a processor configured to process the first image and the second image, wherein the processor detects an inspection region based on the second image and processes information of a region of the first image corresponding to the inspection region.

Abstract: Provided is a video decoding method including: obtaining, from a bitstream, prediction motion vector information indicating a prediction motion vector of a current block and difference motion vector information indicating a difference motion vector of the current block; determining the prediction motion vector of the current block according to whether or not an adjacent block of the current block is decoded and the prediction motion vector information; determining a motion vector resolution of the current block according to whether or not the adjacent block of the current block is decoded; determining the difference motion vector of the current block according to the difference motion vector information; determining a motion vector of the current block according to the prediction motion vector, the motion vector resolution, and the difference motion vector; and reconstructing the current block according to the motion vector of the current block, wherein the adjacent block of the current block includes a right

Abstract: A processing system may obtain a downscaled version of a reference copy of a video, comprising a plurality of downscaled versions of a plurality of frames of the reference copy of the video, obtain a first recorded frame of a first variant of a plurality of variants associated with the reference copy of the video, where the plurality of variants comprises a plurality of copies of the video encoded at different bitrates, generate a first downscaled version of the first recorded frame, calculate a first plurality of image distances between the first downscaled version of the first recorded frame and the plurality of downscaled versions of the plurality of frames of the reference copy of the video, and determine a first frame index of the first recorded frame in accordance with a first least image distance from among the first plurality of image distances that is calculated.

Abstract: The invention relates to the technical field of camera, in particular, to a hand-held binocular fisheye 3D VR camera, which includes a housing and a lens assembly mounted on the housing. A bottom surface inside the housing is mounted with an MIC board, and a main bracket is mounted inside the housing. A rear surface of the main bracket is provided with a structural port plate, a sensor body and a sensor board bracket. A front surface of the main bracket is mounted with a cooling bracket and a main board, and one end of the rear surface of the main bracket is mounted with a speaker. The invention is provided with the MIC board and the speaker, supporting three recording modes of photographing, video recording and live broadcast.

Abstract: A method for capturing and processing a digital panoramic image is disclosed. The method involves projecting a panorama onto an image sensor with a panoramic objective lens to obtain a raw image. Then, a set of N output images is created based on the raw image, where N is greater than or equal to two and each output image represents a gnomonic projection of the panorama with a given focal length. The output images have a common predetermined resolution, the focal length of the first output image has a predetermined focal length value, and the focal length of each other output image is shorter than that of the previous output image. A digital panoramic camera system comprising a panoramic objective lens, an image sensor and image processing electronics are also disclosed. The image processing electronics are adapted to perform the method according to the above description.

Abstract: Embodiments of this disclosure provide a data processing method and apparatus. The method includes: acquiring M candidate quantized state chains of a transform block in multimedia data; acquiring N syntax elements corresponding to a transform coefficient i in the transform block, and acquiring fixed probability models respectively corresponding to K syntax elements; performing context modeling for (N-K) syntax elements according to adjacent coding coefficients of the transform coefficient i, to obtain target probability models respectively corresponding to the (N-K) syntax elements; determining a coefficient rate distortion cost of the transform coefficient i according to the fixed probability models, the target probability models, and a quantization reconstruction value of the transform coefficient i; and determining path rate distortion costs respectively corresponding to the M candidate quantized state chains according to a coefficient rate distortion cost of each transform coefficient.

Abstract: A video block of a current picture may be coded in an intra block copy (IBC) mode. Weighted prediction may be disabled for the IBC-coded screen content video block. Fractional block vectors may be used for the chroma components of the IBC-coded video block. An interpolation filter may be utilized to generate chroma prediction samples for the video block. A decoded version of the current reference picture may be added to both reference picture list LO and reference picture list L1 that are associated with the IBC-coded video block. When constrained intra prediction is applied, reference samples that may be used to predict an intra-coded video block may be limited to those in intra-coded neighboring blocks. The range of IBC searches may be restricted by imposing a maximum absolute value for block vectors.

Abstract: A deflection prism assembly for an endoscope having a lateral viewing direction. The deflection prism assembly including: a prism holder; a deflection prism which is received in the prism holder; and at least one electrical heating element for heating the deflection prism. The prism holder includes a reception component and an adjustment component. The deflection prism is attached to the reception component and the adjustment component provides a stop for the deflection prism in an axial direction. Wherein the at least one electrical heating element being disposed in or on the reception component; and the at least one electrical heating element at least partially extending in one or more of a circumferential direction or longitudinal direction of the reception component.

Abstract: An imaging apparatus includes a first image sensor for receiving light of a first wave range, a second image sensor for receiving light of a second wave range other than the first wave range, an information acquisition unit for acquiring position information relating to the imaging apparatus and environment information relating to an imaging environment of the imaging apparatus, an estimation unit for estimating, for each subject to be imaged by the imaging apparatus, influence of an external factor of the imaging apparatus on a first image, which is obtained from the first image sensor, by using the position information and the environment information that are acquired by the information acquisition unit, and an image synthesis unit configured to synthesize the first image and a second image, which is obtained from the second image sensor, on the basis of the influence estimated by the estimation unit.

Abstract: The present disclosure relates to remote medical examination of a patient, and, more specifically, to a remote exam attachment that, along with a user device, may capture images of an anatomical feature for examination of a patient. The remote exam attachment may include a lens and may couple to an examination tool, such as a speculum, a scope, or a tongue depressor, which may be used with a camera of the user device. The user device may be configured to adjust one or more settings of the camera, such as the zoom, field of view, aperture, and/or the like. The user device may further be configured to transmit an image captured in conjunction with the remote exam attachment to another user device. Accordingly, the remote exam attachment, along with the user device, may capture, display, and/or transmit images of an anatomical feature, facilitating remote examination of a patient.

Abstract: In various embodiments, a bootstrapping training subsystem performs sampling operation(s) on a training database that includes subjective scores to generate resampled dataset. For each resampled dataset, the bootstrapping training subsystem performs machine learning operation(s) to generate a different bootstrap perceptual quality model. The bootstrapping training subsystem then uses the bootstrap perceptual quality models to quantify the accuracy of a perceptual quality score generated by a baseline perceptual quality model for a portion of encoded video content. Advantageously, relative to prior art solutions in which the accuracy of a perceptual quality score is unknown, the bootstrap perceptual quality models enable developers and software applications to draw more valid conclusions and/or more reliably optimize encoding operations based on the perceptual quality score.

Abstract: Iris image pick-up devices perform image pick-up of an iris of a moving subject. Images from the iris image pick-up devices are written to storage areas for transfer in a memory. A readout device reads out an image stored in the storage areas for transfer to a storage area for image processing at a frame interval corresponding to the movement speed of the subject. An image processing unit executes processing using the image read out to the storage area for image processing.

Abstract: Devices, systems, and methods for generating illumination-invariant images are disclosed. A method may include activating, by a device, a camera to capture first image data; while the camera is capturing the first image data, activating of a first, light source; receiving the first image data, the first image data having pixels having first color values; identifying first light generated by the first light source while the camera is capturing the first image data; identifying, based on the first image data, second light generated by a second light source; generating, based on the first light and the second light, second image data that are illumination-invariant; and presenting the second image data.

Abstract: A communication method for a vehicle dispatch system includes a communication apparatus configured to control communication between a first apparatus and a second apparatus. The first apparatus and the second apparatus are capable of information exchange with each other. The communication apparatus includes a processor. The processor operates to: acquire a position of a boarding point for a user and a current position of a target vehicle to be dispatched to the user; at identification timing at which a determination is made that the current position of the target vehicle belongs to a predetermined area defined with reference to the position of the boarding point, generate target vehicle information using a captured image captured by one or more cameras of the target vehicle; and transmit the target vehicle information to the second apparatus. The second apparatus operates to display the received target vehicle information on a display.

Abstract: A handheld three-dimensional (3D) measuring system operates in a target mode and a geometry mode. In the target mode, a target-mode projector projects a first line of light onto an object, and a first illuminator sends light to markers on or near the object. A first camera captures an image of the first line of light and the illuminated markers. In the geometry mode, a geometry-mode projector projects onto the object a first multiplicity of lines, which are captured by the first camera and a second camera. One or more processors determines 3D coordinates in the target mode and the geometry mode.