Abstract: Systems and methods to mitigate an effect of an errant signal on an image sensor of a vehicle involve collecting light and separating the light to obtain signals at different wavelengths. A method includes determining an intensity of the light at each of the different wavelengths, and identifying the errant signal based on the intensity of the light exceeding a threshold value at an errant signal wavelength among the different wavelengths. The errant signal is mitigated using the controller.

Abstract: A method of encoding or decoding utilizing a low complexity transform may include receiving information regarding a target block for encoding or decoding, and if the at least one of a width or a height of a block size of the target block is greater than or equal to the predetermined threshold, performing encoding or decoding of the target block, but instead of applying a large transform having a size corresponding to the at least one of the width or the height of the block size of the target block, applying a first transform to a first portion of the target block, and applying the first transform or a second transform to a second portion of the target block. Also, at least one of the first transform and the second transform is a low-complexity transform that has a size that is less than the predetermined threshold.

Abstract: In one example, a method includes receiving, in a coded video bitstream and for a current prediction unit (PU) of a current picture of video data, a representation of an offset vector that identifies a block of a reference picture, wherein the offset vector is within a set of values that are not uniformly distributed. The example method further includes determining, based on the block of the reference picture identified by the offset vector, motion information for the current PU. The example method further includes reconstructing the current PU based on the determined motion information.

Abstract: A mobile device has at least two camera lenses for taking a first image and a second image as a stereo-image pair. The mobile device also has an electronic processor for composing a composite image from first image strips compressed from the first image and second image strips compressed from the second image in an interlaced manner. The composite image is conveyed to a display panel so that a viewer can see a 3D image through a parallax separating sheet with parallax separating units. The composite image can also be electronically shifted by haft an image strip to accommodate a viewer with a dominant eye. The shifting can be initiated by a viewer using a switch on the mobile device.

Abstract: A spectral imaging device (12) includes an image sensor (28), a tunable light source (14), an optical assembly (17), and a control system (30). The optical assembly (17) includes a first refractive element (24A) and a second refractive element (24B) that are spaced apart from one another by a first separation distance. The refractive elements (24A) (24B) have an element optical thickness and a Fourier space component of the optical frequency dependent transmittance function. Further, the element optical thickness of each refractive element (24A) (24B) and the first separation distance are set such that the Fourier space components of the optical frequency dependent transmittance function of each refractive element (24A) (24B) fall outside a Fourier space measurement passband.

Abstract: Motion estimation or compensation functionality of a hardware component is used to encode or decode key frames and other video frames. The hardware component includes a memory, which may, for example, be a local static random access memory or an external dynamic random access memory. Upon a block of a frame being encoded or decoded, data associated with that block is stored in the memory. That data can then be processed by motion estimation or motion compensation for use in encoding or decoding one or more later blocks within the same frame. The data may, for example, be stored in the memory after operations for reconstruction and loop filtering have been performed. The data stored in the memory may effectively be processed using traditional inter-prediction operations, such as to identify similar video objects within blocks of the same frame.

Abstract: An information apparatus for communicating with a portable information terminal includes a processor including hardware. The processor determines state information regarding a state of the information apparatus when the power state is switched, by the power switch, from the on state to the office state. The processor also determines whether the manually set parameter has been changed before and after the power state is switched from the on state to the off state, based on the use history information of a manually set parameter in the information apparatus. Finally, the information apparatus transmits, to the portable information terminal, the state information indicating that the set parameter in the information apparatus has been changed when the processor determines that the set parameter has been changed while keeping the processor energized after the power state is switched from the on state to the off state.

Abstract: Method and apparatus of video coding using generalized bi-prediction are disclosed. According to one method, the generalized bi-prediction is extended for Decoder-Side Motion Vector Refinement (DMVR), where unequal weighting factor pair is allowed to form the template of the current block or the final predictor. In another method, the generalized bi-prediction is extended to pattern-based MV derivation (PMVD), where unequal weighting factor pair is allowed to combined reference blocks pointed by motion vectors derived based on PMVD. In yet another method, the generalized bi-prediction is used for Merge mode. When the final Merge MVP selected corresponds to bi-prediction using an unequal weighting factor pair, a new weighting factor pair is derived using neighboring reconstructed pixels of the current block and corresponding motion compensated pixels. In yet another method, the size of a set of weighting factor pairs is dependent on block size.

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: A method for inter-predicting a current block includes determining a motion vector and a reference frame for the current block, determining a transform block of transform coefficients for the current block, determining a category of the transform block, determining, using the category, a context for coding the motion vector, and encoding the motion vector using the context. The category is based on positions of non-zero coefficients of the transform coefficients. An apparatus for decoding a current block using inter prediction includes a memory and a processor. The memory includes instructions executable by the processor to decode a transform block for the current block, determine a category of the transform block, determine, using the category, a context for decoding a motion vector, decode the motion vector using the context, and inter-predict the current block using the motion vector. The category is based on positions of non-zero coefficients in the transform block.

Abstract: Provided is an image coding method that partitions an input image signal into processing units, and that codes the partitioned image to generate a code sequence. In particular, the image coding method determines a partitioning pattern for hierarchically partitioning the input image signal in order starting from a largest unit of the processing units, generates partition information indicative of the partitioning pattern, and codes partition information. The partition information includes maximum used hierarchy depth information indicative of a maximum used hierarchy depth which is a hierarchy depth of a deepest processing unit of the processing units included in the partitioning pattern.

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: Aspects determine horizontal viewing angles for viewers of a display screen as a function of outer edge visual boundary lines projecting from outer edges of the display screen to different respective viewing locations of the viewers. The aspects determine locations of intersections of outer edge visual boundary lines defining the horizontal viewing angle of a first viewer with the outer edge visual boundary lines defining the horizontal viewing angles of the other viewers, and thereby a masking screen width dimension and spatial location for the first viewer as extending from an intersection location determined on one of the outer edge visual boundary lines defining the first viewer's viewing angle that is closest to the first viewer, to a point on another outer edge visual boundary line defining the first viewer's viewing angle that is outside of the viewing angles of the other viewers.

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 from 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 a gain value 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 using the gain value 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: An exemplary method for intelligent compression defines a threshold value for a temperature reading generated by a temperature sensor. Data blocks received into the compression module are compressed according to either a first mode or a second mode, the selection of which is determined based on a comparison of the active level for the temperature reading to the defined threshold value. The first compression mode may be associated with a lossless compression algorithm while the second compression mode is associated with a lossy compression algorithm. Or, both the first compression mode and the second compression mode may be associated with a lossless compression algorithm, however, for the first compression mode the received data blocks are produced at a default high quality level setting while for the second compression mode the received data blocks are produced at a reduced quality level setting.

Abstract: In surveillance camera system (10), face detection is performed with Cam-A or Cam-F and in a case where there is a match with the face image of a specific person as a result of collation of face images, appearance feature information is transmitted from tracking client (30) to other Cam-B to Cam-E grouped in association with Cam-A or Cam-F. Upon detecting the appearance feature information, the other Cam-B to Cam-E transmit the person discovery information to a tracking client (30).

Abstract: A depth camera assembly (DCA) for depth sensing of a local area. The DCA includes a transmitter, a receiver, and a controller. The transmitter illuminates a local area with outgoing light in accordance with emission instructions. The transmitter includes a fine steering element and a coarse steering element. The fine steering element deflects one or more optical beams at a first deflection angle to generate one or more first order deflected scanning beams. The coarse steering element deflects the one or more first order deflected scanning beams at a second deflection angle to generate the outgoing light projected into the local area. The receiver captures one or more images of the local area including portions of the outgoing light reflected from the local area. The controller determines depth information for one or more objects in the local area based in part on the captured one or more images.

Abstract: A method for video decoding includes determining, for a current block that is a non-square block, whether an angular intra prediction mode for the current block is a wide angle mode that is in a direction outside of a range of directions that spans a bottom left diagonal direction and top right diagonal direction of the current block. The method further includes, in response to determining that the angular intra prediction mode is the wide angle mode, determining whether a condition to apply an intra smoothing filter to blocks neighboring the current block is satisfied. The method further includes, in response to determining that the condition is satisfied, applying the intra smoothing filter to the blocks neighboring the current block. The method also includes performing intra prediction based on the filtered blocks to obtain a characteristic value for the current block.

Abstract: This disclosure is directed to monitoring exposure levels for individual cameras of a stereo camera system to reduce unwanted lens flaring which may disrupt stereo vision capabilities of an unmanned aerial vehicle (UAV). The UAV may identify lens flaring by monitoring histogram data received from the cameras and then mitigate the lens flaring by performing aerial maneuvers with respect to the light source and/or moving camera componentry such as deploying a lens hood. The UAV may also identify lens flaring patterns that on a camera's sensor and determine a location of a peripheral light source based on these patterns. The UAV may then deploy a visor between the location of the peripheral light source and the cameras.

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.