Abstract: The disclosed computer-implemented method may include downsampling and encoding one or more video segments into a plurality of encoded segments with a first encoder using a plurality of encoding parameter value sets and decoding and upsampling the plurality of encoded segments to a plurality of decoded segments at an original resolution of the one or more video segments. The method may also include determining, based on analyzing the plurality of decoded segments, an optimal encoding parameter value set for the one or more video segments. The method may further include encoding the one or more video segments with a second encoder using the optimal encoding parameter value set. Various other methods, systems, and computer-readable media are also disclosed.

Abstract: An encoder includes circuitry and memory. The circuitry, using the memory: derives a one-dimensional array of a plurality of reference samples for intra prediction; performs smoothing on the one-dimensional array of the plurality of reference samples which has been derived; and generates a prediction image using the plurality of reference samples. In deriving the one-dimensional array, the circuitry projects a value of at least one decoded pixel located on a first line onto a second line perpendicular to the first line, to derive at least one of the plurality of reference samples, and the smoothing is performed on the at least one decoded pixel projected onto the second line.

Abstract: An embodiment of the method receives input data associated with a current block in a current picture at a video encoder or receiving a video bitstream corresponding to compressed data including the current block in the current picture at a video decoder, wherein the current block is coded or to be coded in an affine mode according to an affine motion model; calculates and storing affine parameters for a plurality of coded blocks in the current picture; retrieves the affine parameters of one or more coded blocks from the temporal buffer; derives an affine candidate including affine motion vectors using the retrieved affine parameters of the neighboring block; and encodes or decodes the current block by predicting the current block using one or more motion compensated blocks by the derived affine candidate.

Abstract: A method for decoding a compressed video bit stream in a video decoder to recover a video sequence, the video decoder including a plurality of decoder processing cores is provided. The method includes determining that a picture is encoded in the compressed bit stream as a pre-determined number of independently encoded sub-pictures, and dispatching a first encoded sub-picture of the pre-determined number of sub-pictures to a first decoder processing core of the plurality of decoder processing cores and a second encoded sub-picture of the pre-determined number of sub-pictures to a second decoder processing core of the plurality of decoder processing cores, wherein the first encoded sub-picture and the second encoded sub-picture are independently decoded in parallel on the respective first and second decoder processing cores.

Abstract: A system and method of planar motion vector derivation which, in some embodiments can employ an unequal weighted combination of adjacent motion vectors. In some embodiments, motion vector information associated with a bottom right pixel or block adjacent to a current coding unit can be derived from motion information associated with a top row or top neighboring row of a current coding unit and motion information associated with a left column or left neighboring column of a current coding unit. Weighted or non-weighted combinations of such values can be combined in a planar mode prediction model to derive associated motion information for bottom and/or right adjacent pixels or blocks.

Abstract: The present disclosure relates to an image processing apparatus and an image processing method for enabling suppression of an increase in a memory capacity required for orthogonal transform and inverse orthogonal transform. A transformation matrix is derived using a submatrix configuring a part of the transformation matrix, a prediction residual of an image is orthogonally transformed using the derived transformation matrix, and coefficient data obtained by orthogonally transforming the prediction residual is encoded to generate a bit stream. The present disclosure can be applied to, for example, an image processing apparatus, an image encoding device, an image decoding device, or the like.

Abstract: The present invention provides a new and useful paradigm in wide area imaging, in which wide area imaging is provided by a step/dwell/image capture process and system to capture images and produce from the captured images a wide area image. The image capture is by a sensor that has a predetermined image field and provides image capture at a predetermined frame capture rate, and by a motorized step and dwell sequence of the sensor, where image capture is during a dwell, and the step and dwell sequence of the sensor is synchronized with the image capture rate of the sensor.

Abstract: A temporal domain rate distortion optimization considering a coding-mode adaptive distortion propagation is provided. A problem of dependency rate distortion optimization based on a temporal domain distortion propagation is induced again according to a temporal domain dependency relationship under an LD structure and a distortion propagation analysis under a skip mode and an inter mode; and an aggregation distortion of a current coding unit and an affected future coding unit are estimated and a propagation factor of a coding unit in a temporal domain distortion propagation model is calculated by constructing a time propagation chain, wherein a Lagrange multiplier is adjusted through an accurate propagation factor to realize a temporal domain dependency rate distortion optimization, and an I frame is subjected to a secondary coding technology to realize the temporal domain dependency rate distortion optimization of the I frame.

Abstract: Methods, systems, and techniques for tagless tracking of an object-of-interest are disclosed. Image and non-image data are generated across a plurality of camera-specific regions, and the object-of-interest is tracked over a global map formed as a composite of these regions.

Abstract: An image data processing method includes obtaining flight state information of an unmanned aerial vehicle (UAV), selecting a target image processing strategy from a plurality of image processing strategies based on the flight state information, and processing image data obtained by an imaging device carried by the UAV based on the target image processing strategy to obtain processed image data. The plurality of image processing strategies include an image stabilization strategy.

Abstract: This application discloses an image coding method comprising: obtaining a plurality of groups of human skeleton data associated with performing an action by a human body, wherein each group of the human skeleton data comprises joint data associated with a joint for performing the action; extracting, based on joint data in the plurality of groups of human skeleton data, a motion feature matrix corresponding to the plurality of groups of human skeleton data; and encoding the motion feature matrix to obtain a motion feature image.

Abstract: A wearable accessory device is disclosed. The wearable accessory device includes a flexible display coupled to a bi-stable spring. Coupling the display to the bi-stable spring allows the accessory device to be easily worn in a number of convenient locations.

Abstract: In some embodiments, a method generates a representation for a video that represents a relationship of a bitrate to a quality measurement for the video and selects candidate transcoding points on the representation. A plurality of candidate profile ladders are generated based on the candidate transcoding points. Each of the plurality of candidate profile ladders includes a different combination of profiles and a profile is associated with at least one of a bitrate and a quality measurement. The method selects a profile ladder from the plurality of candidate profile ladders based on analyzing the bitrate or the quality of the profile ladder and uses the profile ladder for the video.

Abstract: A biological tissue inspection apparatus is disclosed. The biological tissue inspection apparatus comprises a stage and a probe. The probe comprises an optical imaging device, an optical interference detector, and a light guide. The probe acquires data regarding optical images and optical interference, through the optical imaging device and the optical interference detector. The stage or the probe moves such that a selected area of the inspection object is positioned in the FOV of the optical imaging device and of the optical interference detector. The light guide is configured such that illumination light from the optical imaging device and measurement light from the optical interference detector are coaxially emitted to the inspection object.

Abstract: A video decoder chipset (200, 300, 400, 500) comprises a video decoder function (210), an upscaler function (230) and a combiner function (240). The video decoder function (210) is configured to (i) decode encoded video data to generate decoded video data at a first level of quality, the encoded video data having been derived by an encoder using first video data at a second, higher level of quality and (ii) output the decoded video data for storage in a memory (220). The upscaler function (230) is configured to (i) obtain the decoded video data from the memory (220) and (ii) upscale the obtained decoded video data to generate second video data at the second level of quality. The combiner function (240) is configured to (i) obtain residual data, the residual data having been derived by the encoder based on the first video data and the second video data, (ii) combine the second video data with the residual data to generate enhanced video data, and (iii) output the enhanced video data.

Abstract: An image pickup apparatus includes: an image sensor; a first detection unit configured to detect movement of the image sensor; a second detection unit configured to compare images to detect a positional deviation thereof; a combining unit configured to combine the images on a basis of the detected positional deviation and to generate a panoramic image; and a display control unit, in which in a case where combining of images up to an Nth frame is completed by the combining unit, on a basis of information about a size of the panoramic image generated by combining the images up to the Nth frame and the movement of the image sensor, which is detected by the first detection unit and corresponds to frames from an (N+1)th frame to an (N+M)th frame, the display control unit generates information indicating progress of combining of the panoramic image.

Abstract: An inter prediction method according to the present invention comprises the steps of: selecting candidate units from among reconstructed neighbor units; creating a candidate unit set with respect to units to be decoded, using the selected candidate units; determining a reference unit from among the candidate units which constitute the created candidate unit set; and performing inter prediction on the units to be decoded, using the determined reference unit. According to the present invention, image encoding/decoding efficiency can be improved.

Abstract: An input control unit collectively sends a plurality of pieces of variable length code data. A primary analysis processing unit processes a first piece of variable length code data, recognizes zero run information, group number information, and overhead bit information relating thereto, and outputs them to a frequency conversion unit. A continuous analysis processing unit processes one or more pieces of variable length code data subsequent to the first piece of variable length code data. In the case of variable length code data targeted for a predetermined process, the continuous analysis processing unit recognizes zero run information, group number information, and overhead bit information relating thereto, and output them to the frequency conversion unit. In the case of not the variable length code data targeted for the predetermined process, the continuous analysis processing unit discards this and subsequent pieces of data.

Abstract: An encoder includes: circuitry; and memory, in which using the memory, the circuitry, in affine motion compensation prediction in inter prediction for a current block, places a limit on a range within which motion estimation or motion compensation is performed, and performs the motion compensation for the current block.

Abstract: Pulsed hyperspectral, fluorescence, and laser mapping imaging in a light deficient environment is disclosed. A system includes an emitter for emitting pulses of electromagnetic radiation and an image sensor comprising a pixel array for sensing reflected electromagnetic radiation. The system includes a controller configured to synchronize timing of the emitter and the image sensor. The system is such that at least a portion of the pulses of electromagnetic radiation emitted by the emitter comprises one or more of a hyperspectral emission, a fluorescence emission, or a laser mapping pattern.