Abstract: Provided are entropy encoding and entropy decoding for video encoding and decoding. The video entropy decoding method includes: determining a bin string and a bin index for a maximum coding unit that is obtained from a bitstream; determining a value of a syntax element by comparing the determined bin string with bin strings that is assignable to the syntax element in the bin index; storing context variables for the maximum coding unit when the syntax element is a last syntax element in the maximum coding unit, a dependent slice segment is includable in a picture in which the maximum coding unit is included, and the maximum coding unit is a last maximum coding unit in a slice segment; and restoring symbols of the maximum coding unit by using the determined value of the syntax element.

Abstract: An infrared camera, comprising photosensitive element (101) capable of sensing infrared spectrum, gas discharge flash acting as flash light source (102), a first optical filter (103) filtering visible lights and allowing infrared light to transmit, and processing module (105) used to execute instructions, wherein the first optical filter is fixedly or removablely disposed in the emitted light path of the flash light source. Due to gas discharge flash filtering visible lights and acting as infrared light source, the camera could provide infrared lighting capability far better than infrared LED, improving the nighttime infrared photographing quality.

Abstract: A motion compensation module can be used in a video encoder for encoding a video input signal that includes a sequence of images that are segmented into a plurality of macroblocks. The motion compensation module includes a motion search module that generates a motion search motion vector for a plurality of subblocks for a plurality of partitionings of a macroblock of a plurality of macroblocks and generates a selected group of the plurality of partitionings based on a group selection signal. A motion refinement module—generates a refined motion vector for the plurality of subblocks for the selected group of the plurality of partitionings of the macroblock of the plurality of macroblocks, based on the motion search motion vector for each of the plurality of subblocks of the macroblock of the plurality of macroblocks.

Abstract: An ice detector includes an icing assembly that includes a transparent icing rod with an illuminating element is disposed therein and having an ice accretion surface and a support structure. The icing rod has at least one visual sensor configured to obtain an image of the ice accretion surface; a controller electrically connected to the visual sensor and including an image contrast module configured to compare the obtained image with an initial image so as to judge whether ice is formed on the ice accretion surface of the icing rod. The icing assembly includes a refrigerating element respectively connected to the icing rod and the support structure. The refrigerating element may perform active refrigeration for the icing rod, reduce the surface temperature of the icing rod and facilitate the ice detector detecting ice accretion before ice is formed on a wing/nacelle.

Abstract: Present novel and non-trivial system, device, and method for generating a steering command for at least one forward-looking image capture device are disclosed. The steering command generating system is comprised of a source of navigation data, an avionics system processor (“ASP”) configured to receive the navigation data representative of a wind correction angle (“WCA”); generate steering data as a function of at least the navigation data and representative of a steering command commensurate to an angular difference; and provide the steering data to one or more forward-looking image capture device(s). In another embodiment, the ASP may further receive motion tracking data representative of a head position angular measurement and include the motion tracking data in the function for generating steering data. The angular difference may correspond to the WCA or the measurement of a head position angle.

Abstract: Described are methods and systems for collision avoidance in an underground mine environment that use one or more of a computer vision component, an asset tracking system, and a motion detection component for the purpose of determining and responding to potential collision threats. Imaging is captured and processed in real time, so that assets of interest can be identified and used in evaluating potential for collision with other assets. Location data from an asset tracking system is likewise evaluated and used to determine proximity of assets in relation to the host. A final input is provided by the motion detection component that intelligently determines movement patterns and direction of travel. Once these components' inputs are collectively evaluated, a proximity or a threat value is generated which determine an audible or visual signal or action to prevent collision and increase safety in unfavorable conditions.

Abstract: The invention provides a wide-angle image pickup unit, comprising at least two cameras (4a and 4b) to take digital images, wherein the two cameras are arranged in such a manner that optical axes (11a and 11b) of the two cameras cross perpendicularly each other on a same plane and images of wide field angle ? with the crossing point O as a center enable to be acquired, and wherein parts of field angles of the two cameras are superimposed on each other and an overlapping portion is formed by the two images superimposed on each other, and stereoscopic measurement can be performed based on the two images of the overlapping portion.

Abstract: In one aspect, the present disclosure related to a method for modifying a beacon light source for use in a light-based positioning system. In some embodiments, the method includes selecting a modulation scheme for the light source, determining a duty cycle for the light source based on the modulation scheme, the duty cycle having a proportion of time the light source is in an on state and a corresponding proportion of time the light source is in an off state, the proportion of time the light source is in an off state resulting in reduced luminosity of the light source, and supplying additional power to the light source to compensate for the reduced luminosity of the light source by the duty cycle.

Abstract: An image coding method includes coding a motion vector difference indicating a difference between the motion vector and a predicted motion vector, wherein the coding includes: coding a first portion that is a part of a first component which is one of a horizontal component and a vertical component of the motion vector difference; coding a second portion that is a part of a second component which is different from the first component and is the other one of the horizontal component and the vertical component; coding a third portion that is a part of the first component and is different from the first portion; coding a fourth portion that is a part of the second component and is different from the second portion; and generating a code string which includes the first portion, the second portion, the third portion, and the fourth portion in the stated order.

Abstract: An embodiment contemplates a method of calibrating multiple image capture devices of a vehicle. A plurality of image capture devices having different poses are provided. At least one of the plurality of image capture devices is identified as a reference device. An image of a patterned display exterior of the vehicle is captured by the plurality of image capture devices. The vehicle traverses across the patterned display to capture images at various instances of time. A processor identifies common landmarks of the patterned display between each of the images captured by the plurality of image capture devices and the reference device. Images of the patterned display captured by each of the plurality of image devices are stitched using the identified common landmarks. Extrinsic parameters of each image capture device are adjusted relative to the reference device based on the stitched images for calibrating the plurality of image capture devices.

Abstract: A video decoding apparatus for decoding a current block comprised of a plurality of subblocks by using an intra prediction, includes: an inverse quantization unit to inversely quantize transformed and quantized residual subblocks corresponding to the subblocks of the current block to thereby generate transformed residual subblocks; an inverse transform unit to inversely transform the transformed residual subblocks to thereby reconstruct residual subblocks; a prediction unit to sequentially predict the subblocks from neighboring pixels which have been already reconstructed to thereby generate a plurality of predicted subblocks corresponding to the subblocks; and an adder to sequentially reconstruct the subblocks by adding each of the reconstructed residual subblocks to a predicted subblock corresponding thereto, wherein the prediction unit uses one or more pixels of at least one previously reconstructed subblock within the current block as the neighboring pixels.

Abstract: Methods and apparatus provide for a Scene Detector to optimize the location of scene breaks in a set of video frames. Specifically, the Scene Detector receives a set of video frames and a corresponding content model for each video frame. As the Scene Detector identifies a scene in the set of video frames, the Scene Detector updates statistical predictors with respect to characteristics of that scene's characteristics. The Scene Detector thereby utilizes the updated statistical predictors to identify a video frame that may be the next scene break. The Scene Detector analyzes video frames with respect to the possible next scene break in order to identify the actual second scene break that occurs after the previously identified scene break.

Abstract: In one method embodiment, receiving at a frame matching module a first frame comprising first plural blocks and plural frames that each comprise a plurality of blocks to be matched to the first plural blocks of the first frame, the first plural blocks and the plurality of blocks comprising luma blocks; for each of the frame pair matchings, selecting one border configuration among a plurality of border configurations, the border configuration selected for the each of the frame pair matchings unique; appending a border of pixels to the frames of the each of the frame pair matchings based on the selected border configuration; and block matching the first plural blocks with the plurality of blocks.

Abstract: Techniques are described for determining a block in a reference picture in a reference view based on a disparity vector for a current block. The techniques start the disparity vector from a bottom-right pixel in a center 2×2 sub-block within the current block, and determine a location within the reference picture to which the disparity vector refers. The determined block covers the location referred to by the disparity vector based on the disparity vector starting from the bottom-right pixel in the center 2×2 sub-block within the current block.

Abstract: Provided is an inspection apparatus including: (a) a translucent or transparent plate having a bottom surface, at least a portion of the bottom surface having an opaque material printed thereon in a pattern having at least one transparent or translucent portion; and (b) a chamber disposed below the bottom surface, whereby light emitted from the chamber or through the chamber can pass through the at least one transparent or translucent portion.

Abstract: A method for video encoding comprising transforming a plurality of pixels to generate a first plurality of transform coefficients, quantizing the first plurality of transform coefficients to generate a plurality of quantized transform coefficients, computing a plurality of prediction pixels based on a plurality of reconstructed pixels which are prediction references for the plurality of pixels, transforming the plurality of prediction pixels to generate a second plurality of transform coefficients, and computing a plurality of prediction residual coefficients as a difference between the plurality of quantized transform coefficients and the second plurality of transform coefficients.

Abstract: An image capture device includes: a first and second optical system including a first and second focus lens, respectively; a first image sensor that outputs an electrical signal representing a subject image that has been produced through the first focus lens; a second image sensor that outputs an electrical signal representing a subject image produced through the second focus lens; and a drive controller that moves the first and second focus lenses along their optical axes. The drive controller has the second focus lens follow a position determined by a position of the first focus lens until the first focus lens reaches a position close to in-focus position, and then moves the first and second focus lenses to in-focus positions independently of each other once the first focus lens has reached the position close to the in-focus position.

Abstract: A method is provided of decoding video data using a merge mode. A merge list is constructed using available spatial and temporal merge candidates. A merge candidate on the merge list corresponding to a merge index is determined as motion information of a current prediction unit. A predicted block of the current prediction unit is generated using the motion information. A transformed block is generated by inverse-quantizing a block of quantized coefficients using a quantization parameter. A residual block is generated by inverse-transforming the transformed block. A reconstructed block is generated using the predicted block and the residual block.

Abstract: A method is provided for decoding video data in a merge mode. A quantized block is generated by inverse-scanning quantized coefficient components. A transformed block is generated by inverse-quantizing the quantized block using a quantization parameter. A residual block is generated by inverse-transforming the transformed block. A merge list is constructed using available spatial and temporal merge candidates. A merge candidate is set on the merge list specified by a merge index as motion information of a current prediction unit. A prediction block of the current prediction unit is generated using the motion information. A reconstructed block is generated using the prediction block and the residual block.

Abstract: A monoscopic low-power mobile device is capable of creating real-time images and videos for multiple viewpoints from a single captured view. The device uses statistics from an autofocusing process to create a block depth map of a single capture view. Artifacts in the block depth map are reduced and an image depth map is created. Alternate views are created from the image depth map using a Z-buffer based surface recover process and a disparity map which is a function of a geometric vision model.