Abstract: An image decoding method includes receiving residual information including first size related information for a first residual coefficient and second size related information for a second residual coefficient, setting a Rice parameter of the first size related information and the second size related information as a specific value, deriving available binary values based on the Rice parameter, deriving binary values of the first size related information and the second size related information by decoding the first size related information and the second size related information, deriving values of the first size related information and the second size related information by comparing the binary values and the available binary values, deriving the first residual coefficient and the second residual coefficient based on the values, and reconstructing a current picture based on the first residual coefficient and the second residual coefficient.

Abstract: This invention provides a system and a method for supporting the operation of subsea installations for 3D reconstruction of flexible pipes (1) during a direct vertical connection operation, comprising the steps of painting the flexible pipe (1) with a specific regular pattern, and performing a 3D reconstruction of the points sampled on the flexible pipe (1) to obtain the radius of curvature of the flexible pipe (1), in which the 3D reconstruction comprises the steps of: capturing images of the flexible pipe (1) during the direct vertical connection operation; sending the captured images to a dedicated computer (4); and processing the captured images, generating information on the radius of curvature, wherein the method initially comprises at least one of the following steps: painting the bend restrictor (6) with a specific regular pattern; painting straps (71) for buoys (7) with a specific regular pattern; and painting straps (71) for the arch bend, in the event of second-end direct vertical connection.

Abstract: According to one example for capturing three-dimensional data of an object, illumination of an object is initiated, the object is scanned with a sensor, and a 3D representation of the object is created. Illumination of the object may comprise illumination of a surface of the object within a field of view of the sensor.

Abstract: A vision system (10) for a motor vehicle with a stereo imaging apparatus (11) with imaging devices (12) adapted to capture images from a surrounding of the motor vehicle, and a processing device (14) adapted to process images captured by the imaging devices (12) and to detect objects, and track detected objects over several time frames, in the captured images. The processing device (14) is adapted to obtain an estimated value for the intrinsic yaw error of the imaging devices (12) by solving a set of equations, belonging to one particular detected object (30), using a non-linear equation solver method, where each equation corresponds to one time frame and relates a frame time, a disparity value of the particular detected object, an intrinsic yaw error and a kinematic variable of the vehicle.

Abstract: A decoder that decodes a current block using a motion vector includes: a processor; and memory. Using the memory, the processor: derives a first candidate vector from one or more candidate vectors of one or more neighboring blocks that neighbor the current block; determines, in a first reference picture for the current block, a first adjacent region that includes a position indicated by the first candidate vector; calculates evaluation values of a plurality of candidate regions included in the first adjacent region; and determines a first motion vector of the current block, based on a first candidate region having a smallest evaluation value among the evaluation values. The first adjacent region is included in a first motion estimation region determined based on the position indicated by the first candidate vector.

Abstract: Systems, devices, media, and methods are presented for capturing and sharing visual content, especially three-dimensional video, with a plurality of users with compatible devices. The methods in some implementations include transmitting the visual content to a portable projector, generating a unique invite and broadcasting it to a plurality of eyewear devices, and projecting the visual content onto a screen for viewers who accepted the invite and are wearing a compatible eyewear device. For projection in 3D format, the eyewear devices include an active shutter mode. The portable projector may be housed in the interior of a case. In some configurations, the case interior is sized and shaped to support the projector and an eyewear device. The system may include multiple projectors at remote locations directed to project the visual content simultaneously.

Abstract: Systems and methods are provided for aligning a laser scanning device for measurement of a volume of a container. A method includes: causing an autonomous vehicle coupled to the laser scanning device to move to a location at a known distance from a reference circumference; generating data indicative of locations of points along a portion of the reference circumference; determining, based on the data, an alignment angle by which the autonomous vehicle is to steer such that an axis of the laser scanning device that intersects the container passes through a center axis of the container; causing the autonomous vehicle to steer by the alignment angle, such that the laser scanning device is thereby aligned normal to a tangent plane of a wall of the container; and measuring a plurality of horizontal offsets of the wall relative to the reference circumference for use in determining the volume.

Abstract: A post processing system, method and computer program product content-adaptively transforms MPEG on-demand media streams, including a video optimizer software development kit (SDK); an application layer controlling the SDK interfacing with a mobile device operating and file system. Raw pixel frame buffers are parsed and structured. The buffers are normalizes for processing. Source content is analyzed in an uncompressed format for video patterns and characteristics and parameters are selected in a video codec output format. Estimated are parameters for portions and/or segments of the content. The content is recompressed and optimized in a content-adaptive manner to generate optimized content written into persistent storage of the mobile device, and segments of which are combined with an audio stream and/or a metadata stream information to generate a playable media stream in an ISO base media file format and/or a media file application specific format.

Abstract: Provided are a video processing method and apparatus, a video retrieval method and apparatus, a medium, and a server. The video processing method includes: performing encoding and decoding on an original video by using the encoder and the decoder, to obtain a video feature of the original video and a hidden state of the original video at a decoding stage; reconstructing a video feature of a target video by using the reconstructor according to the hidden state of the original video at the decoding stage; obtaining a difference between the video feature of the target video and the video feature of the original video; and adjusting a processing parameter of at least one of the decoder and the reconstructor to reduce the difference between the video feature of the target video and the video feature of the original video.

Abstract: A Scalable Video Coding (SVC) process for scalable video coding takes into account color gamut primaries along with spatial resolution. The process for re-sampling uses video color data obtained from an encoder or decoder process of a base layer (BL) in a multi-layer system to enable improved encoding and decoding in an enhancement layer (EL) or higher layers taking into account color conversion between layers. Examples of applicable SVC include MPEG-4 and High Efficiency Video Coding (HEVC). With the SVC process, video data expressed in one color gamut space can be used for prediction in encoding with a different color space.

Abstract: In a conventional art, an output layer set having no output layer is sometimes defined. Consequently, even if the decoder decodes a bit stream to obtain each layer in the output layer set without the output layer, there is no picture to be outputted. There is a possibility that such coded data causes the decoder expecting an output to operate unexpectedly. Output layer sets having the same configuration may be defined. Consequently, the amount of code pertaining to the output layer sets defined in an overlapping manner is redundant. According to an aspect of the present invention, specification of a bit stream conformance pertaining to the output layer set prevents occurrence of an output layer set without an output layer and a redundant output layer set.

Abstract: The present invention relates to a head mount system for providing a surgery support image, the system including: a head mount body wearable on a user's head; a near-infrared camera installed on the head mount body and capturing near-infrared light; a near-infrared image projection unit installed on the head mount body and projecting a near-infrared image; a near-infrared image processing unit receiving a captured image taken by the near-infrared camera, generating the near-infrared image, and transmitting the near-infrared image to the near-infrared image projection unit; and a transparent optic system installed on the head mount body to be positioned in front of user's eyes when the head mount body is worn on the user's head, transmitting visible light to enable a user to see a user's front, reflecting the near-infrared light coming from the user's front to the near-infrared camera to allow the near-infrared camera to capture the near-infrared light.

Abstract: The present invention discloses a disparity image stitching and visualization method based on multiple pairs of binocular cameras. A calibration algorithm is used to solve the positional relationship between binocular cameras, and the prior information is used to solve a homography matrix between images; internal parameters and external parameters of the cameras are used to perform camera coordinate system transformation of depth images; the graph cut algorithm has high time complexity and depends on the number of nodes in a graph; the present invention divides the images into layers, and solutions are obtained layer by layer and iterated; then the homography matrix is used to perform image coordinate system transformation of the depth images, and a stitching seam is synthesized to realize seamless panoramic depth image stitching; and finally, depth information of a disparity image is superimposed on a visible light image.

Abstract: An avionics system for an unmanned aerial vehicle (UAV) includes a housing having a mounting hole, a flight control circuit board arranged inside the housing, a wireless communication circuit board integrated with the flight control circuit board on a printed circuit board (PCB), a positioning circuit arranged inside the housing and above or below the PCB, and a connection wire passing through the mounting hole and connecting the flight control circuit board with an electronic governor of the UAV arranged outside the housing.

Abstract: An apparatus, a method, and a computer program performs image coding with selective loop-filtering. That is, the loop-filters which operate on samples across discontinuous face boundaries are capable of being disabled. The loop-filter operation may be deferred until all samples across a face boundary are known. Then, the loop-filter can use the correct samples according to the 3D arrangement. This may be implemented on the coding block level or at a higher level.

Abstract: The present disclosure relates to encoding and decoding video by employing texture coding. In particular, a texture region is identified within a video picture and a texture patch is determined for the texture region. Moreover, a first set of parameters is derived specifying weighting factors for reconstructing spectral coefficients of the texture region by fitting the texture region in a spectral domain to a first function of the texture patch, the first function being defined by the first set of parameters. The texture patch and the first set of parameters are then included into a bitstream which is output by an encoder and provided in this way to the decoder which reconstructs the texture based on the patch and the function applied to the patch.

Abstract: The present invention is related to processing a video signal. A method for decoding a video according to the present invention may comprise generating a prediction block of a current block by performing intra prediction, deriving at least one sample position based parameter based on a position of a first prediction sample in the prediction block, and obtaining a second prediction sample by weighted predicting the first prediction sample based on the at least one sample position based parameter. According to the present invention, encoding/decoding efficiency of a video signal can be improved since intra prediction is performed more accurately.

Abstract: The present invention is related to processing a video signal. A method for decoding a video according to the present invention may comprise generating a prediction block of a current block by performing intra prediction, deriving at least one sample position based parameter based on a position of a first prediction sample in the prediction block, and obtaining a second prediction sample by weighted predicting the first prediction sample based on the at least one sample position based parameter. According to the present invention, encoding/decoding efficiency of a video signal can be improved since intra prediction is performed more accurately.

Abstract: A three-dimensional data encoding method includes: generating first information in which an N-ary tree structure of a plurality of three-dimensional points included in three-dimensional data is expressed using a first formula, where N is an integer of 2 or higher; and generating a bitstream including the first information. The first information includes pieces of three-dimensional point information each associated with a corresponding one of the plurality of three-dimensional points. The pieces of three-dimensional point information each include indexes each associated with a corresponding one of a plurality of levels in the N-ary tree structure. The indexes each indicate a subblock, among N subblocks belonging to a corresponding one of the plurality of levels, to which a corresponding one of the plurality of three-dimensional points belongs.

Abstract: A system and method for coding video in which deblocking artifacts are reduced by using modified filtering that is based, at least in part on pixel intensity associated with a coding unit, such that filtering levels are increased as pixel intensity increases. In some embodiments, an offset value or indicator of an offset value for parameters associated with deblocking filter parameters can be associated with a filtering level that is based at least in part on an intensity value.