Abstract: Provided is a multi-layer video decoding method for efficiently obtaining, from a bitstream, information indicating a maximum size of a decoded picture buffer (DPB) regarding a layer set including a plurality of layers.

Abstract: A sample observation device includes an illumination optical system and an observation optical system, and the illumination optical system includes a light source, a condenser lens and an aperture member, and the observation optical system includes an objective lens and an imaging lens, and the aperture member has a light-shielding part or a darkening part and a transmission part, and the aperture member is disposed so that the light-shielding part or the darkening part includes an optical axis of the illumination optical system, and an image of an inner edge of the transmission part is formed inside of an outer edge of the pupil of the objective lens, and an image of an outer edge of the transmission part is formed outside of the outer edge of the pupil of the objective lens.

Abstract: A three dimensional (3D) stereoscopic image rendering system uses a lenticular lens sheet with a light diffusing multi-layer, which may include an adhesive layer, formed on the external surface of its lower base. The microstructural constitution of the light diffusing multi-layer suppresses moiré patterns typically affecting the 3D images. When longitudinally directed stray light rays are internally reflected from the interior surfaces of each lenticular lens in the sheet and impinge on the light diffusing multi-layer contacting the lower base, the stray light rays are scattered diffusely into various directions, thereby significantly reducing the intensity of the moiré pattern and its effect on the image. In addition, certain related problems, such as crosstalk between left and right directed images are also reduced. As a result, the viewer perceives a high quality, moiré free, stereoscopic 3D image.

Abstract: System and methods are disclosed for generating an output video stream from a wide field video stream. The wide field video stream may be created from compiling a plurality of video stream capturing different viewpoints of the same environment simultaneously. Upon selecting a wide field video stream, a first geometric function may be utilized to generate individual intermediate points that correspond to locations in a wide field video stream to be displayed on a particular display space. A second geometric function may be further utilized to generate reference points so that a the pixel on the output video stream are determined from the intermediate points of the wide field video stream of the first geometric function. Upon the execution of the first and second geometric function, an output video stream is generated for display on the determined display space.

Abstract: A method of optimizing an encoded video stream comprising one or more video frames, each video frame comprising a plurality of macroblocks, each macroblock comprising a plurality of pixels. The method includes receiving an encoded macroblock, decoding the encoded macroblock, and extracting a first quantization parameter. The first quantization parameter corresponds to quantization settings originally used for compressing the encoded macroblock. The method also includes computing a second quantization parameter based at least in part on the first quantization parameter, re-encoding the decoded macroblock based on the second quantization parameter, and providing the re-encoded macroblock.

Abstract: Various techniques are provided for implementing an infrared imaging system. In one example, a system includes a focal plane array (FPA). The FPA includes an array of infrared sensors adapted to image a scene. The FPA also includes a bias circuit adapted to provide a bias voltage to the infrared sensors. The bias voltage is selected from a range of approximately 0.2 volts to approximately 0.7 volts. The FPA also includes a read out integrated circuit (ROIC) adapted to provide signals from the infrared sensors corresponding to captured image frames. Other implementations are also provided.

Abstract: A three-dimensional video encoding method, decoding method, and related apparatus is disclosed. The decoding method may include decoding a video bitstream to obtain a single sample flag bit corresponding to a current image block in a current depth map, performing detection on a first adjacent prediction sampling point and a second adjacent prediction sampling point of the current image block in the current depth map if the single sample flag bit obtained by decoding indicates that a decoding mode corresponding to the current image block is a single depth intra-frame mode, and constructing a sample candidate set according to results of the detection on the first adjacent prediction sampling point and the second adjacent prediction sampling point, where the sample candidate set includes a first index location and a second index location, decoding the video bitstream to obtain a single sample index flag bit corresponding to the current image block.

Abstract: A wearable video device is provided. The video device wearable includes a first hanger and a second hanger by which the wearable video device is connected to a user, a first camera module that is installed in the first hanger, the first camera module having a first optical axis that is rotated outward at a predetermined first angle from a central axis of the wearable video device, and the first camera module being configured to generate a first image, a second camera module that is installed in the second hanger, the second camera module having a second optical axis that is rotated outward at a predetermined second angle from the central axis of the wearable video device, and the second camera module being configured to generate a second image, and a main circuit that controls the first camera module and the second camera module, and that processes at least a portion of the first and second images, wherein a first view of the first camera module and a second view of the second camera module partially overlap.

Abstract: A device can determine a distance to an object. The device can use the determined distance to vary a focal length of a first adjustable element so that the first adjustable element directs light from the object into a first waveguide and onto a detector, and forms an image of the object at the detector. The device can produce an image, such as augmented content, on a panel. The device can direct light from the panel into a second waveguide. The device can use the determined distance to vary a focal length of a second adjustable element so that the second adjustable element directs light out of the second waveguide and forms a virtual image of the panel in a plane coincident with the object. The device can operate as an augmented reality headset. The adjustable elements can be phase modulators, or acoustically responsive material with surface acoustic wave transducers.

Abstract: High efficiency video coding (HEVC) enhancements are described for intrablock copying for reducing motion vector (MV) coding redundancy and enhancing in range extensions (RExt) by selecting a default block my predictor. In reducing MV data redundancy, the value of MVx and/or MVy can have a baseline at the width (W), or height (H) of the respective block, whereby fewer bits need to be encoded. One embodiment for enhancing RExt provides an improved selection of a default block vector predictor for the first CU performing intra-block copying in a CTU.

Abstract: This disclosure generally provides a fingerprint sensor that derives a fingerprint by measuring capacitive sensing signals while modulating a reference voltage rail used to power the fingerprint sensor. In one embodiment, the fingerprint sensor is integrated into an electronic device which may include other components such as a display, I/O devices, speakers, and the like. To power these components, the electronic device may include a DC power supply which outputs reference voltages. When transmitting the reference voltages to the fingerprint sensor, the electronic device may modulate the voltages using a modulating signal. Because the reference voltages are used to power the components in the fingerprint sensor, modulating the rail voltages also causes the components coupled to the reference voltages to also modulate. While this modulation occurs, the fingerprint sensor measures resulting signals using a plurality of sensor electrodes which are then processed to derive a fingerprint.

Abstract: The present disclosure relates to systems, devices, and methods for calibrating a light field projection system. One example system includes a projection unit operable to project a scanning sequence toward a screen having convex reflective elements. The scanning sequence is modulated according to a baseline intensity profile. The system also includes a calibration device disposed such that a portion of the scanning sequence is intercepted by the calibration device. The calibration device includes a first light detector arranged to detect an intercepted intensity profile. The calibration device also includes a second light detector arranged to detect a reflected portion of the scanning sequence as a measured intensity profile. The system further includes a control system. The control system is configured to determine an expected intensity profile and to modify operation of the light field projection system based on a comparison of the measured intensity profile to the expected intensity profile.

Abstract: An image decoding method includes: obtaining first reference picture information from a coded signal; determining whether or not a second reference picture identified by the first reference picture information is stored in a buffer; determining, when the second reference picture is not stored in the buffer, a picture stored in the buffer to be a third reference picture; and decoding a current picture from the coded signal using a fifth reference picture selected from one or more fourth reference pictures including the third reference picture instead of the second reference picture.

Abstract: The invention relates to a microscope having an illumination beam path with wide field illumination of a sample and a first detection beam path having a spatially resolved surface receiver, which is reached by a first part of the detection light coming from the sample via the first detection beam path, or an image divider assembly for a microscope. In order to lengthen the optical path length, at least a second part of the detection light coming from the sample is masked out of the detection beam path and, via deflection means belonging to the detection beam path, is led into a second detection beam path and, preferably via further deflection means, is deflected back in the direction of the detection in such a way that detection light is applied to at least two partial regions beside one another on the surface receiver.

Abstract: A particular implementation receives a bitstream and derives parameters from the bitstream. The parameters include quantization parameters, content unpredictability parameters, ratios of lost blocks, ratios of propagated blocks, error concealment distances, motion vectors, durations of freezing, and frame rates. Using these parameters, a compression distortion factor, a slicing distortion factor, and a freezing distortion factor are estimated respectively for distortions resulting from video compression, a slicing mode error concealment, and a freezing slicing mode error concealment. The distortion factors are then mapped to a composite video quality score. For applications with limited computational power, the estimation of distortion factors can be simplified. In particular, the compression distortion factor, the slicing distortion factor, and the freezing distortion factor can be predicted from quantization parameters, ratios of lost blocks, and durations of freezing, respectively.

Abstract: A vehicular display control device includes: a display control unit for controlling a display device to superimpose an image on a surrounding view of the vehicle; and a sensor operation detecting unit for detecting whether an obstacle sensor detecting an obstacle around the vehicle is in operation. When the obstacle sensor is in operation, the display control unit: transforms a detection target area, which falls in a detection range of the obstacle sensor and expands from the vehicle to a periphery along a road surface, into a detection target image represented from a viewpoint of a driver of the vehicle; and displays a transformed image to be superimposed on the surrounding view of the vehicle.

Abstract: The present invention discloses a method for retrieving atmospheric aerosol based on statistical segmentation. Firstly a multi-band remote sensing image including an apparent reflectance and an aerosol optical thickness look-up table corresponding to a retrieval band is obtained, then pixels are partitioned and screened according to apparent reflectance segments of a mid-infrared 2.1 micrometer band. After that the retained pixel sets are further partitioned and screened according to the apparent reflectance segments of the mid-infrared 1.6 micrometer band. Finally the obtained pixel sets are partitioned into two categories according to the pixel number, one category including pixels having more pixels, the other including those with less pixels. The category with more pixels is taken as the reference part for retrieval.

Abstract: Delivery parcel detection systems can include a remote computing device and a doorbell configured to detect a delivery parcel. Methods of enabling a door to be unlocked to allow access to a delivery person may include sending a digital key to a remote computing device. Methods may include ways to ensure security of the building.

Abstract: Methods and systems related to the detection of 3-D video content are disclosed herein. Specifically, a video image file may be analyzed in order to determine if it contains 3-D stereoscopic video content. An assumption is made regarding the possible 3-D format of the video image file. The assumption could be that the video frame includes a left portion and a right portion where each portion contains respective stereoscopic image perspectives. Image analysis algorithms could be used to determine if the left and right portions are sufficiently similar to confirm the assumption. If so, an indication could be carried out that could include a change to metadata or a similar change to associated video image file information. If the left and right portions of the video frame are not sufficiently similar, another analysis may be performed to test a different 3-D file format assumption.

Abstract: A device includes a sensor configured to determine an angle of a longitudinal extent of the device with respect to a ground surface. The device also includes an estimator configured to estimate a first distance and to estimate a second distance based on the angle and the first distance. The first distance is associated with a first projection from a center of the device to the ground surface. The first projection is perpendicular to the longitudinal extent of the device. The second distance is associated with a second projection from the center of the device to the ground surface. The second projection is perpendicular to the ground surface.