Patents Issued in April 13, 2017
-
PROJECTION APPARATUS FOR PROJECTING AT LEAST ONE FRAME ONTO A PROJECTION SURFACE AND METHOD THEREFOR
Publication number: 20170104966Abstract: A projection apparatus includes a discharge lamp; a control apparatus for controlling a discharge current through the lamp. The apparatus is designed in a first drive mode, to control the discharge current having an amplitude profile; in a second drive mode, to control the discharge current in accordance with the amplitude profile; and to change between the first mode and the second mode. The time difference between two changes is given by a first time interval, and the time difference between the change from the first mode to the second mode and a next instance of leaving the second mode is given by a second time interval. The apparatus further includes a control device to determine a first manipulated variable depending on a control deviation determined by the difference between a target voltage value and a measured voltage value, and to determine the first and/or the second time interval therefrom.Type: ApplicationFiled: October 10, 2016Publication date: April 13, 2017Inventors: Michael Heise, Marc Czichy, Bastian Dobler -
Publication number: 20170104967Abstract: An image displaying system is provided, including an image device, first and second carrying devices. The image device receives an external image message. The first carrying device has an accommodating space. An imaging assembly is disposed at one end of the first carrying device while a virtual-image imaging assembly is disposed at the opposite end. The second carrying device has a storage space. The image device may attach to the accommodating space. When triggered, the image device transforms the external image message into a reversed image message and then projects the reversed image message to the imaging assembly. The virtual-image imaging assembly projects the reversed image message of the imaging assembly to produce a first image. The image device may attach to the storage space such that it projects the external image message to a target to produce a second image.Type: ApplicationFiled: March 30, 2016Publication date: April 13, 2017Inventors: KUEI-CHI PENG, KUEI-LIN PENG, CHIEH-FENG WU
-
Publication number: 20170104968Abstract: A display control device includes: an input unit that receives environmental information on a vehicle; and a controller that outputs to an image generator a first control signal for generating a first specific image representing a presentation image to be displayed on a display medium. When decreasing the luminance of the presentation image based on the environmental information, the controller outputs to the image generator a second control signal for generating a second specific image representing the presentation image with a hue changed to decrease a blue component in a display color.Type: ApplicationFiled: September 27, 2016Publication date: April 13, 2017Inventors: MAKOTO MOCHIZUKI, KOICHI EMURA, TATSURU DAIMON
-
Publication number: 20170104969Abstract: An apparatus includes a projector to project an image, a three-dimensional sensor to measure three-dimensional data of an image projection range onto which the image is to be projected, and a processor to extract a plane area from the image projection range based on the three-dimensional data measured by the three-dimensional sensor, as a direction of the plane area, identify at least one of a long-side direction, a short-side direction, and a normal direction of the plane area, using the direction of the plane area, perform a primary alignment of an image area for the image to be projected by the projector with the plane area, and perform a secondary alignment of the image area with the plane area by performing a tracking process between a first contour of the image area aligned by the primary alignment and a second contour of the plane area.Type: ApplicationFiled: September 1, 2016Publication date: April 13, 2017Applicant: FUJITSU LIMITEDInventor: Yasushi Sugama
-
Publication number: 20170104970Abstract: Disclosed are an apparatus and method for controlling a laser projector to operate. The method includes: obtaining a plurality of operating parameters of the laser projector in operation; comparing each of obtained operating parameters with a preset parameter, and judging whether the laser projector fails, wherein the preset parameters are parameters of the laser projector which is operating normally; and determining failure information of the laser projector according to a result of a comparison if it is judged that the failure occurs.Type: ApplicationFiled: December 22, 2016Publication date: April 13, 2017Inventor: Song LI
-
Publication number: 20170104971Abstract: The present invention provides a method and apparatus for generating a high dynamic range image (HDRI). After acquiring a first illuminance diagram, a base layer and detail layers are extracted from the first illuminance diagram, where the base layer contains low frequency information of the first illuminance diagram and the detail layers contain high frequency information of the first illuminance diagram. The dynamic range of the base layer is then compressed while dynamic ranges of the detail layers remain uncompressed. Further, a second illuminance diagram is generated from the first illuminance diagram by fusing the base layer with the compressed dynamic range and the detail layers, the second illuminance diagram is mapped onto a plurality of preset color channels; and the images on the plurality of preset color channels are fused into the HDRI. Therefore, the detail information in the original illuminance diagram can be preserved.Type: ApplicationFiled: December 20, 2016Publication date: April 13, 2017Inventors: Caigao JIANG, Zisheng CAO, Mingyu WANG, Taiwen LIANG
-
Publication number: 20170104972Abstract: In an example, the present invention provides an optical engine apparatus. The apparatus has a laser diode device, the laser diode device characterized by a wavelength ranging from 300 to 2000 nm or any variations thereof. In an example, the apparatus has a lens coupled to an output of the laser diode device and a scanning mirror device operably coupled to the laser diode device. In an example, the apparatus has an un-patterned phosphor plate coupled to the scanning mirror and configured with the laser device; and a spatial image formed on a portion of the un-patterned phosphor plate configured by a modulation of the laser and movement of the scanning mirror device.Type: ApplicationFiled: October 8, 2015Publication date: April 13, 2017Inventors: Vlad Joseph Novotny, Paul Rudy
-
Publication number: 20170104973Abstract: A method to be performed by a playback device includes determining whether the playback device has a function for converting first graphics in a second luminance range narrower than a first luminance range to second graphics in the first luminance range, when the playback device has the function, converting the first graphics to the second graphics, and displaying a video in the first luminance range with the second graphics being superimposed on the video, and when the playback device does not have the function, displaying the video with third graphics different from the second graphics being superimposed on the video.Type: ApplicationFiled: December 21, 2016Publication date: April 13, 2017Inventors: TADAMASA TOMA, MASAYUKI KOZUKA, HIROSHI YAHATA, TAKAHIRO NISHI, KENGO TERADA
-
Publication number: 20170104974Abstract: The present invention relates to an apparatus and method for IP switching/routing SDI format image signal through bandwidth splitting and reduction, more specifically, which decomposes image signals consisting of YCbCr type color format entered with serial digital interface (SDI) into Y (luminance) component and C (chrominance) component, or multiple bit slice components; converts the components into IP packets and performs switching and/or routing of the IP packets; extracts Y component and C component or multiple bit slice components from the switched or routed IP packets; and combines the components into SDI format image signal and outputs the combined SDI format image signal. In addition, the present invention provides an apparatus switching/routing image signals through grid based networking, in which broadband switching or routing is performed with multiple narrow band switches or routers by switching or routing image signals through bandwidth splitting and reduction.Type: ApplicationFiled: October 12, 2016Publication date: April 13, 2017Inventors: Chun Dae BAK, Chang Su KIM
-
Publication number: 20170104975Abstract: A video processing device (100) for processing 3D video is coupled to a 3D display device (120). The device receives the 3D video data according to a high resolution interlaced 3D format. A video processor (106) generates a 3D display signal according to a display format. 3D display capability data indicates at least one interlaced 3D display format accepted by the 3D display device, the interlaced 3D display format having a lower resolution than the high resolution interlaced 3D format. The device has a storage unit (21,31) for storing the 3D display capability data and 3D conversion capability data. The 3D conversion capability data indicates a capability of the video processing device for interlaced down conversion for enabling a selection mechanism to control the processing of the 3D video information by selecting the interlaced 3D display format and the interlaced down conversion. Advantageously the user is provided with the best possible 3D view.Type: ApplicationFiled: December 20, 2016Publication date: April 13, 2017Inventor: Wiebe DE HAAN
-
Publication number: 20170104976Abstract: Systems, methods, and computer-readable media to improve multi-image color-refinement operations are disclosed for refining color differences between images in a multi-image camera system with application to disparity estimation. Recognizing that corresponding pixels between two (or more) images of a scene should have not only the same spatial location, but the same color, can be used to improve the spatial alignment of two (or more) such images and the generation of improved disparity maps. After making an initial disparity estimation and using it to align the images, colors in one image may be refined toward that of another image. (The image being color corrected may be either the reference image or the image(s) being registered with the reference image.) Repeating this process in an iterative manner allows improved spatial alignment between the images and the generation of superior disparity maps between the two (or more) images.Type: ApplicationFiled: October 13, 2015Publication date: April 13, 2017Inventor: Thomas E. Bishop
-
Publication number: 20170104977Abstract: A system includes a first scanner having an inflatable membrane configured to be inflated with a medium to conform an exterior surface of the inflatable membrane to an interior shape of a cavity. The medium attenuates, at first rate per unit length, light having a first optical wavelength, and attenuates, at a second rate per unit length, light having a second optical wavelength. An emitter is configured to generate light to illuminate the interior surface and a detector is configured to receive light from the interior surface. The scanner further includes a processor configured to generate a first electronic representation of the interior shape based on the light. A design computer is configured to modify the first electronic representation into a three-dimensional shape corresponding to at least a portion of the interior shape and a fabricator configured to fabricate, based at least on the modified first electronic representation, an earbud.Type: ApplicationFiled: October 7, 2016Publication date: April 13, 2017Inventors: ROBERT J. FEI, Michael L. Rishton, Jonathan Aguilar, Lydia Gregorette, Keith Guggenberger, Brett Zubiate, Brian J. Fligor, Xiaowei Chen, David J. Wilfert
-
Publication number: 20170104978Abstract: Disclosed herein are systems and methods for enhancing a sequence of video images to add depth and presenting the enhanced images to the user through a lenticular lens arrangement on a display screen for viewing the enhanced images in three-dimensions (3D). The embodiments include the application of image enhancing algorithms which measure spatial and temporal differences between sequential images in an input video stream in order to measure depth within the images and produce one or more interleaved images with depth. Multiple sequential interleaved images may then be created in real-time as the images from the video stream are received, and the sequence of interleaved images may then be presented immediately as a video stream on a display fitted with a lenticular lens to effectively display a 3D video to the user.Type: ApplicationFiled: July 1, 2016Publication date: April 13, 2017Inventor: Hideshi SASAKI
-
Publication number: 20170104979Abstract: A system for determining a loss of calibration in a multi-view stereo imaging system including executing instructions, via a processor, for a multi-view stereo imaging system to process a plural image frame recorded from a plurality of digital cameras of an information handling system and based on plural image calibration parameters and detecting a physical impact event, via a physical sensor, to an information handling system. The system and method execute instructions for a physical impact event detection system to determine, based on physical sensor feedback data, whether a threshold level of a physical impact event has been reached so as to affect calibration of the multi-view stereo imaging system. The detected physical impact event may be a mechanical impact event, a thermal impact event, a vibration mechanical impact event, or another physical impact event.Type: ApplicationFiled: October 12, 2015Publication date: April 13, 2017Inventors: Timothy C. Shaw, Christopher A. Torres, Deeder M. Aurongzeb, Roman Joel Pacheco, Maxwell Andrews
-
Publication number: 20170104980Abstract: A system for capturing live-action three-dimensional video is disclosed. The system includes pairs of stereo cameras and a LIDAR for generating stereo images and three-dimensional LIDAR data from which three-dimensional data may be derived. A depth-from-stereo algorithm may be used to generate the three-dimensional camera data for the three-dimensional space from the stereo images and may be combined with the three-dimensional LIDAR data taking precedence over the three-dimensional camera data to thereby generate three-dimensional data corresponding to the three-dimensional space.Type: ApplicationFiled: December 20, 2016Publication date: April 13, 2017Inventors: Anthony Tran, Jason Juang
-
Publication number: 20170104981Abstract: The present invention includes a system, apparatus and method for generating a three-dimensional image, the system comprising: a medium comprising a optical molecular switch molecule, wherein the optical molecular switch molecule has a non-fluorescent state and a fluorescent state, wherein at one wavelength of optical excitation the molecule has a first state, and at a second state the molecule fluoresces a second wavelength of excitation; and at least a first light source and a second light source into the medium, wherein light emitted by the at least first and second light sources are directed to contact the optical molecular switch molecule, e.g., scanning, weaving, diagonally or other pattern; wherein the optical molecular switch molecule is converted into a fluorescent “on state” by irradiation from the first light source, and the second light causes the optical molecular switch to emit light.Type: ApplicationFiled: October 7, 2016Publication date: April 13, 2017Inventors: Alexander R. Lippert, Shreya Patel
-
Publication number: 20170104982Abstract: A method and system that uses multiple views of a single image to create a three dimensional scene having a projected depth of projection. The projected depth of projection may be controlled by choosing views having a particular number of views separating them. As a user moves positions, the views are changed to display views associated with the new position of the user. The new views have the same number of views separating them to maintain a consistent depth of projection.Type: ApplicationFiled: October 9, 2015Publication date: April 13, 2017Inventor: Neal Weinstock
-
Publication number: 20170104983Abstract: A display device may include a panel including a plurality of pixels and an optical layer. The display device may include a processor configured to generate an image of the panel based on a location relationship between the pixels and the optical elements so that a plurality of rays corresponding to the image propagate evenly at a viewing distance. The location relationship is based on an optical parameter of the optical layer.Type: ApplicationFiled: April 8, 2016Publication date: April 13, 2017Inventors: JINHO LEE, Yang Ho Cho, Dong Kyung Nam, Juyong Park
-
Publication number: 20170104984Abstract: A projection-type image display apparatus of the present disclosure includes a fluorescent substance, a blue-color laser diode excitation optical system, a DMD, a projection optical system, a polarizing plate, and a depolarizing plate. The fluorescent substance has characteristics of emitting predetermined fluorescence in response to excitation light. The blue-color laser diode has a semiconductor laser that emits laser light of a wavelength with which the fluorescent substance is excited. The excitation optical system condenses light from the blue-color laser diode. The DMD is controllable by a signal from an external source. The projection optical system is an optical system that can enlarge and project an image displayed by the DMD. The polarizing plate is disposed on the output side of the projection optical system.Type: ApplicationFiled: October 3, 2016Publication date: April 13, 2017Inventors: Shigekazu YAMAGISHI, Michihiro OKUDA
-
Publication number: 20170104985Abstract: In order to display 3D images by a parallax barrier method, a display screen and the eyes of a viewer need to have a specific positional relation. An object is to provide a display device with an extended area where the viewer can perceive 3D images with the naked eye. Attention is focused on the position of the viewer with respect to pixels provided in a display device and a mode of a parallax barrier provided between the viewer and the pixels. This leads to a structure in which the position of the viewer with respect to pixels is specified by using an ultrasonic wave to change a mode of a parallax barrier in accordance with the position of the viewer, thereby achieving the above object.Type: ApplicationFiled: December 22, 2016Publication date: April 13, 2017Inventor: Masaaki HIROKI
-
Publication number: 20170104986Abstract: A method and device for dirt detection are provided. The method for dirt detection may include: periodically reading an in-focus index FV of a video shooting module of a terminal, wherein the video shooting module is in a shooting mode; determining whether there exists dirt on a camera based on values of the read FV; and transmitting a prompt information when it is determined that there exists dirt on the camera.Type: ApplicationFiled: October 24, 2014Publication date: April 13, 2017Inventor: Lian Zhang
-
Publication number: 20170104987Abstract: An apparatus for processing a video, a method of driving the apparatus for processing the video, and a computer readable recording medium are provided. The apparatus includes a storage unit configured to store a plurality of set values corresponding to at least one factor used for a quality measurement of a communication signal line, and a controller configured to transmit a plurality of test signals respectively corresponding to the plurality of set values to a signal receiver connected to the communication signal line and receive a plurality of regression signals respectively corresponding to the plurality of transmitted test signals from the signal receiver. The controller determines a set value of the factor based on the plurality of received regression signals and transmits a signal to the signal receiver based on the determined set value of the factor.Type: ApplicationFiled: September 22, 2016Publication date: April 13, 2017Applicant: Samsung Electronics Co., Ltd.Inventor: Kang-young WON
-
Publication number: 20170104988Abstract: A method, for wireless transmission of real-time media from a source to a sink over a wireless transmission channel is disclosed. In one embodiment, the method comprises encoding media as a plurality of sets of frames, wherein each set of frames includes a key-frame, wherein the media is encoded for the wireless transmission such that a time-required for transmission of the key-frame of each set of frames is less than or equal to a time-allocation for the wireless transmission; and wirelessly transmitting the media from the source device to the sink device.Type: ApplicationFiled: December 16, 2016Publication date: April 13, 2017Applicant: BlackBerry LimitedInventors: Mohammed Nawaf SMADI, Vytautas Robertas KEZYS, Sandy PAVEL
-
Publication number: 20170104989Abstract: Systems and methods for reusing encoding information in the encoding of alternative streams of video data in accordance with embodiments of the invention are disclosed. In one embodiment of the invention, encoding multimedia content for use in adaptive streaming systems, includes selecting a first encoding level from a plurality of encoding levels using a media server, determining encoding information for a first stream of video data using the first encoding level and the media server, encoding the first stream of video data using the media server, where the first stream of video data includes a first resolution and a first bitrate, selecting a second encoding level from the plurality of encoding levels using the media server, and encoding a second stream of video data using the encoding information and the media server, where the second stream of video data includes a second resolution and a second bitrate.Type: ApplicationFiled: December 22, 2016Publication date: April 13, 2017Applicant: Sonic IP, Inc.Inventors: Sergey Zurpal, Leonid Volnin
-
Publication number: 20170104990Abstract: At least one mode signaling syntax element is provided based on an encoded representation of a picture in a video sequence. The at least one mode signaling syntax element is employed to determine whether at least one final reference picture list is the same for all slices of a same slice type in the picture. The at least one mode signaling syntax element thereby signals to a decoder that it does not necessarily have to repeat computationally complex reference picture list construction functions for each slice in the picture.Type: ApplicationFiled: December 19, 2016Publication date: April 13, 2017Inventors: Rickard SJÖBERG, Jonatan SAMUELSSON, Per WENNERSTEN
-
Publication number: 20170104991Abstract: A system for decoding a video bitstream includes receiving a reference picture set associated with a frame including a set of reference picture identifiers. The reference picture set identifies one or more reference pictures to be used for inter-prediction of the frame based upon its associated least significant bits of a picture order count based upon the reference picture identifiers. The one or more reference pictures is a second or greater previous frame to the frame having the matching reference picture identifier.Type: ApplicationFiled: December 22, 2016Publication date: April 13, 2017Applicant: SHARP KABUSHIKI KAISHAInventors: Sachin G. DESHPANDE, Christopher A. SEGALL
-
Publication number: 20170104992Abstract: A system, a method and computer-readable media for encoding image data into a compressed bitstream. A mode selection component is configured to select a mode of operation for use in encoding image data. A spatial mode encoder is utilized when the mode selection component selects a spatial mode of operation. The spatial mode encoder is configured to encode the image data into packets by organizing the image data in accordance with a spatial partitioning. A frequency mode encoder is utilized when the mode selection component selects a frequency mode of operation. The frequency mode encoder is configured to encode the image data into packets by organizing the image data in accordance with a frequency ordering.Type: ApplicationFiled: July 18, 2016Publication date: April 13, 2017Inventors: CHENGJIE TU, SRIDHAR SRINIVASAN
-
Publication number: 20170104993Abstract: Disclosed herein are a method and apparatus that adaptively perform encoding and decoding based on image quality. An encoding apparatus may determine optimal Frames Per Second (FPS) for a video and may encode the video based on the determined FPS. Further, the encoding apparatus may provide improved temporal scalability. A decoding apparatus may select a frame to be displayed from among frames of a video depending on a required minimum satisfied user ratio. Through the selection of the frame, the decoding apparatus may provide improved temporal scalability.Type: ApplicationFiled: October 6, 2016Publication date: April 13, 2017Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Se-Yoon JEONG, Hui-Yong KIM, Jong-Ho KIM, Sung-Chang LIM, Shanglin Yang, C.-C. Jay Kuo, Qin Huang
-
Publication number: 20170104994Abstract: The image predictive encoding device 10 comprises an intra frame predictive signal generation method determination section 15 which determines, for adjacent areas comprising regenerated pixel signals and adjacent to the target area, a predictive method which is derived on the basis of data corresponding to the adjacent areas as an R mode predictive method or an L mode predictive method, an intra frame predictive signal generation section 16 which generates an intra frame predictive signal on the basis of the R mode predictive method thus determined, and a subtractor 18, a transform section 19, a quantization section 20, and an entropy encoding section 25 which encode a residual signal of a pixel signal of the target area on the basis of the generated intra frame predictive signal.Type: ApplicationFiled: December 20, 2016Publication date: April 13, 2017Applicant: NTT DOCOMO, INC.Inventors: Choong Seng BOON, Thiow Keng TAN
-
Publication number: 20170104995Abstract: Methods, systems and apparatus, including computer programs encoded on computer storage media, for video content classification. A video content classification system classifies input video data frame by frame. The video content classification system performs customized discrete cosine transform (DCT) operations on each frame. The video content classification system then determines, based on results of the DCT operations, how much image information in the frame may be lost due to compression. If the loss is estimated to be below a threshold value, the video content classification system applies a high data compression ratio algorithm to compress the frame. Otherwise, the video content classification system applies a low data compression ratio algorithm to compress the frame. The video content classification system may generate output video data that is compressed differently frame by frame.Type: ApplicationFiled: March 25, 2014Publication date: April 13, 2017Applicant: Owtware Holdings Limited, BVIInventors: Lionello Giuseppe Giovanna Lunesu, Douglas Allen Walter
-
Publication number: 20170104996Abstract: Provided are a video encoding method of adjusting a range of encoded output data to adjust a bit depth during restoring of encoded samples, and a video decoding method of substantially preventing overflow from occurring in output data in operations of a decoding process. The video decoding method includes parsing and restoring quantized transformation coefficients in units of blocks of an image from a received bitstream, restoring transformation coefficients by performing inverse quantization on the quantized transformation coefficients, and restoring samples by performing one-dimensional (1D) inverse transformation and inverse scaling on the quantized transformation coefficients. At least one from among the transformation coefficients and the samples has a predetermined bit depth or less.Type: ApplicationFiled: December 21, 2016Publication date: April 13, 2017Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Elena ALSHINA, Alexander ALSHIN
-
Publication number: 20170104997Abstract: A method and system process transform blocks according to quantization matrices in a video coding system. The method includes obtaining an initial quantization matrix having a first width and a first height, obtaining a derived quantization matrix having a second width and a second height, wherein the second width is different from the second height, and the derived quantization matrix is derived from the initial quantization matrix, receiving a transform block having a block size, where the transform block is associated with a picture, and selecting the initial quantization matrix or the derived quantization matrix for processing transform coefficients of the transform block according to the block size.Type: ApplicationFiled: December 20, 2016Publication date: April 13, 2017Inventors: Ximin ZHANG, Shan LIU
-
Publication number: 20170104998Abstract: The present disclosure provides a method and an apparatus for coding or decoding a matrix, includes: dividing a matrix into layers according to a preset quantity of divided layers, and grouping matrix elements into different layers; performing, according to a determined layer number of a highest layer to be coded and in an order of layers one by one, coding processing on matrix elements at each layer to be coded; for a layer having a layer number less than or equal to the layer number of the highest layer to be coded, writing residual data between an original matrix element value corresponding to the layer and a corresponding matrix element predicted value into a bit stream; for a layer having a layer number greater than the layer number of the highest layer to be coded, writing no coded data of the layer into the bit stream.Type: ApplicationFiled: December 21, 2016Publication date: April 13, 2017Inventors: Yunfei WANG, Jianhua ZHENG, Xiaozhen ZHENG, Yun HE
-
Publication number: 20170104999Abstract: Lossless compression of fragmented image data is disclosed. In some embodiments, a stream of information is received, wherein the stream of information comprises a sequence of tuples and wherein each of the tuples comprises data elements corresponding to one of a plurality of input channels. A channel transformer is employed to rearrange the data elements into a plurality of output channels for an output stream wherein the output channels have higher compressibility than the input channels. The compressed output stream is stored.Type: ApplicationFiled: December 20, 2016Publication date: April 13, 2017Inventors: Moses Charikar, Deepa Ramakrishna
-
Publication number: 20170105000Abstract: In a first inter-image prediction mode in which information on a motion vector is used, a first mode detection unit constructs a first candidate list from a plurality of reference block candidates based on a first predetermined order, assigns indices for designating reference block candidates added in the first candidate list, and outputs the indices of the plurality of reference candidate blocks. In a second inter-image prediction mode in which is used a motion vector difference between a motion vector predictor based on information on a motion vector, and a motion vector of a coding target block, a second mode detection unit constructs a second candidate list from a plurality of reference block candidates based on a second predetermined order, assigns indices for designating reference block candidates added in the second candidate list, and outputs the indices of the plurality of reference block candidates and motion vector differences.Type: ApplicationFiled: December 19, 2016Publication date: April 13, 2017Inventors: Masayoshi Nishitani, Hiroya Nakamura, Hideki Takehara, Shigeru Fukushima
-
Publication number: 20170105001Abstract: Provided are methods and apparatuses for encoding and decoding an image. The method of encoding includes: determining a maximum size of a buffer to decode each image frame by a decoder, a number of image frames to be reordered, and latency information of an image frame having a largest difference between an encoding order and a display order from among image frames that form an image sequence, based on an encoding order the image frames that form the image sequence, an encoding order of reference frames referred to by the image frames, a display order of the image frames, and a display order of the reference frames; and adding, to a mandatory sequence parameter set, a first syntax indicating the maximum size of the buffer, a second syntax indicating the number of image frames to be reordered, and a third syntax indicating the latency information.Type: ApplicationFiled: December 21, 2016Publication date: April 13, 2017Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Young-o PARK, Chan-yul KIM, Kwang-pyo CHOI, Jeong-hoon PARK
-
Publication number: 20170105002Abstract: In a palette prediction that includes a copy-above mode for predicting one or more first pixels based on one or more above pixels located above said one or more first pixels correspondingly, a method of palette mode coding using palette prediction for a picture includes receiving input data associated with a current block and determining a current coding mode for one or more current pixels. If the current coding mode corresponds to the copy-above mode, then the method identifies one or more above pixels located above said one or more current pixels correspondingly, wherein said one or more above pixels are restricted to be non-Escape pixels. The method further encodes the one or more current pixels by using said one or more above pixels as predictors.Type: ApplicationFiled: December 23, 2016Publication date: April 13, 2017Inventors: Tzu-Der CHUANG, Yu-Chen SUN, Jungsun KIM, Shan LIU, Wang-Lin LAI, Yi-Wen CHEN
-
Publication number: 20170105003Abstract: For decoding a video stream, an encoded video stream is received with an indication of a prediction mode and an indication of one or more prediction helper values. While decoding this encoded video stream, a predicted value is calculated for each of at least one sample based on the indicated prediction mode and on the prediction helper value(s). The decoded video stream, incorporating each of the at least one samples as decoded using the respective calculated predicted value, is then output to at least one of a computer readable memory and a graphical display. An optional step function can be utilized to aid the helper values and enable non-linear prediction values in a given row or column of a prediction unit. At the encoder side the encoder decides the prediction helper values that it uses to encode the video stream that is stored or transmitted to the decoder.Type: ApplicationFiled: October 13, 2015Publication date: April 13, 2017Inventors: Jani Lainema, Alireza Aminlou
-
Publication number: 20170105004Abstract: Techniques and systems are provided for encoding video data. For example, a method of encoding video data includes obtaining a background picture that is generated based on a plurality of pictures captured by an image sensor. The background picture is generated to include background portions identified in each of the captured pictures. The method further includes encoding, into a video bitstream, a group of pictures captured by the image sensor. The group of pictures includes at least one random access picture. Encoding the group of pictures includes encoding at least a portion of the at least one random access picture using inter-prediction based on the background picture.Type: ApplicationFiled: April 18, 2016Publication date: April 13, 2017Inventors: Ying Chen, Ruiduo Yang, Ning Bi
-
Publication number: 20170105005Abstract: Techniques and systems are provided for performing predictive random access using a background picture. For example, a method of decoding video data includes obtaining an encoded video bitstream comprising a plurality of pictures. The plurality of pictures include a plurality of predictive random access pictures. A predictive random access picture is at least partially encoded using inter-prediction based on at least one background picture. The method further includes determining, for a time instance of the video bitstream, a predictive random access picture of the plurality of predictive random access pictures with a time stamp closest in time to the time instance. The method further includes determining a background picture associated with the predictive random access picture, and decoding at least a portion of the predictive random access picture using inter-prediction based on the background picture.Type: ApplicationFiled: April 18, 2016Publication date: April 13, 2017Inventors: Ying Chen, Xuerui Zhang, Mayank Tiwari, Ning Bi, Prasanjit Panda
-
Publication number: 20170105006Abstract: A method and apparatus of video coding are disclosed. At the encoder side, if the current input picture is designated as a master picture, the current input picture is down-sampled to a current down-sampled picture and the current down-sampled picture is encoded using an Intra mode or an Inter mode. The current down-sampled picture only uses one or more previous reconstructed down-sampled pictures as one or more first reference pictures if coding blocks of the current down-sampled picture are coded using the Inter mode. If the current input picture is designated as a slave picture, coding blocks of the current input picture are encoded with the Inter mode by up-sampling one or more previous reconstructed down-sampled pictures and only using pixel data with one or more up-sampled pictures corresponding to said one or more up-sampled pictures as one or more second reference pictures. A corresponding decoder is also disclosed.Type: ApplicationFiled: November 17, 2016Publication date: April 13, 2017Inventors: Hung-Chih LIN, Shen-Kai CHANG
-
Publication number: 20170105007Abstract: A coding method including dividing pixels of a chrominance component of an input image into blocks having a predetermined size; selecting one among a direct current prediction method, a vertical prediction method, a horizontal prediction method, and a hybrid prediction method according to a user's input; generating a prediction value of each pixel in a current block to be predictively coded, using at least one pixel value among pixel values in an upper reference block adjacent to the current block and in a side reference block adjacent to the current block, according to the selected prediction method; generating a differential value between the prediction value and a corresponding real pixel value in the current block; and coding the differential value and information on the selected prediction method using a predetermined coding method.Type: ApplicationFiled: December 22, 2016Publication date: April 13, 2017Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Woo-shik KIM, Chang-yeong KIM, Yang-seock SEO
-
Publication number: 20170105008Abstract: The present invention discloses an intra-frame depth map block encoding method, including: acquiring a depth map block to be encoded; when a depth modeling mode (DMM) is applied to a recursive quadtree (RQT) or simplified depth coding (SDC) to encode the depth map block, separately detecting the depth map block by using a DMM1 mode and a DMM4 mode in the DMM, to obtain rate-distortion results of the depth map block in the DMM1 mode and in the DMM4 mode; and determining that a DMM with a smallest rate-distortion result in the DMM1 and the DMM4 is a DMM used during encoding, applying the used mode to the RQT or the SDC to encode the depth map block, and writing the used DMM to a bitstream.Type: ApplicationFiled: December 22, 2016Publication date: April 13, 2017Inventors: Xu Chen, Xiaozhen Zheng
-
Publication number: 20170105009Abstract: An electronic device includes an operation processor for encoding image data that is generated by capturing an object, and a communication circuit for communicating with an external device. The operation processor divides an image represented by the image data into a first region and a second region based on an information signal that is received from the external device, encode first image data corresponding to the first region by a first encoding manner, and encode second image data corresponding to the second region by a second encoding manner. An outline of the first region varies depending on a shape of a display device of the external device.Type: ApplicationFiled: September 30, 2016Publication date: April 13, 2017Applicant: Samsung Electronics Co., Ltd.Inventors: Yowon JEONG, Taekkyun SHIN, Yong-Won JUNG
-
Publication number: 20170105010Abstract: A host has a graphics pipeline that process frames by portions (e.g., pixels or rows) or slices. A remote device transmits a video stream container via a network to the host. A frame of the video stream in the container has encoded portions. The graphics pipeline includes a demultiplexer that extracts the portions of the video frame. When a portion has been extracted it is passed to a decoder, which is next in the pipeline. The decoder may begin decoding the portion before receiving a next portion of the frame, possibly while the demultiplexer is demultiplexing the next portion of the frame. A decoded portion of the frame is passed to a renderer which accumulates the portions of the frame and renders the frame. At any time portions of a frame might concurrently be being received, demultiplexed, decoded, and rendered. The decoder may be single-threaded, multi-threaded, or hardware accelerated.Type: ApplicationFiled: October 9, 2015Publication date: April 13, 2017Inventors: Yongjun Wu, Sudhakar Prabhu, Carol Greenbaum, Saswata Mandal, Shyam Sadhwani
-
Publication number: 20170105011Abstract: A method and apparatus of coding using multiple coding modes with multiple color spaces are provided. For the encoder side, a coding mode is selected from a coding mode group. A corresponding color domain is associated with the coding mode and the corresponding color domain is selected from a color-domain group including at least two different color domains. The current coding unit is then encoded in the corresponding color domain using the coding mode. Furthermore, the syntax of the corresponding color domain is signaled in current coding unit syntaxes. The different color domains may include RGB color domain and YCoCg color domain. According to another method, if the midpoint prediction (MPP) mode is selected, a current block is color transformed into another color domain and the MPP coding process is performed in said another color domain.Type: ApplicationFiled: July 15, 2016Publication date: April 13, 2017Inventors: Li-Heng Chen, Tung-Hsing Wu, Han-Liang Chou
-
Publication number: 20170105012Abstract: A method and apparatus of encoding using multiple coding modes with multiple color spaces are disclosed. Weighted distortion is calculated for each candidate mode and a target mode is selected according to information including the weighted distortion. Each candidate coding mode is selected from a coding mode group including at least a first coding mode and a second coding mode, where the first coding mode uses a first color space for encoding one block and the second coding mode uses a second color space for encoding one block, and the first color space is different from the second color space. The weighted distortion corresponds to a weighted sum of distortions of color channels for each color transformed current block using a set of weighting factors and the set of weighting factors is derived based on a color transform associated with a corresponding color space for each coding mode.Type: ApplicationFiled: July 28, 2016Publication date: April 13, 2017Inventors: Tung-Hsing Wu, Li-Heng Chen, Han-Liang Chou
-
Publication number: 20170105013Abstract: A device may be configured to receive video data including a sequence of frames. The sequence of video frames may have a high frame rate. A high frame rate may include frame rate of 120 Hz or higher. In one example, for every other frame included in the sequence of frames, the device may generate a modified frame. A modified frame may include a frame based on a weighted average of a current frame and a previous frame.Type: ApplicationFiled: October 7, 2016Publication date: April 13, 2017Applicant: Sharp Laboratories of America, Inc.Inventors: Jon Arthur FAIRHURST, Christopher Andrew SEGALL, Sachin G. DESHPANDE
-
Publication number: 20170105014Abstract: The present disclosure provides various aspects related to luma-driven chroma scaling for high dynamic range and wide color gamut contents. For example, a method of video data decoding may include obtaining video data, where the video data includes a scaled chroma component and a luma component, and where the scaled chroma component is scaled based on a chroma scaling factor that is a non-linear function of the luma component. The method may also include obtaining the chroma scaling factor for the scaled chroma component and generating a chroma component from the scaled chroma component based on the chroma scaling factor. In addition, the method may include outputting the chroma component, which may then be used for further processing.Type: ApplicationFiled: October 6, 2016Publication date: April 13, 2017Inventors: Sungwon LEE, Adarsh Krishnan RAMASUBRAMONIAN, Dmytro RUSANOVSKYY, Joel SOLE ROJALS, Done BUGDAYCI SANSLI, Marta KARCZEWICZ
-
Publication number: 20170105015Abstract: A method of operation of a video coding system includes: receiving a video bitstream; extracting a video syntax from the video bitstream; extracting a hypothetical reference decoder (HRD) fixed syntax from a video syntax; extracting a HRD variable syntax from the video syntax; extracting a temporal layer from the video bitstream based on the HRD fixed syntax and the HRD variable syntax; and forming a video stream based on the temporal layer for displaying on a device.Type: ApplicationFiled: December 20, 2016Publication date: April 13, 2017Inventors: Munsi Haque, Kazushi Sato, Ali Tabatabai, Teruhiko Suzuki