Involving Both Line Number And Field Rate Conversion (e.g., Pal To Ntsc) Patents (Class 348/443)
  • Patent number: 11699068
    Abstract: An imaging device connected to a neural network is provided. An imaging device having a neuron in a neural network includes a plurality of first pixels, a first circuit, a second circuit, and a third circuit. Each of the plurality of first pixels includes a photoelectric conversion element. The plurality of first pixels is electrically connected to the first circuit. The first circuit is electrically connected to the second circuit. The second circuit is electrically connected to the third circuit. Each of the plurality of first pixels generates an input signal of the neuron. The first circuit, the second circuit, and the third circuit function as the neuron. The third circuit includes an interface connected to the neural network.
    Type: Grant
    Filed: March 26, 2020
    Date of Patent: July 11, 2023
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Takayuki Ikeda, Takahiro Fukutome
  • Patent number: 10750345
    Abstract: Technology for securely processing emergency response. The technology includes combining video data from multiple video sources relating to an emergency response scenario. The video data is combined into a multi-video feed that utilizes a particular amount of bandwidth when delivered. From a display of a multi-video feed, a video source may be selected. A single-video feed is then delivered for the selected video source and the single video feed is utilized substantially the same bandwidth and the multi-video feed. Dynamic geofences may also be generated. The dynamic geofence is based on an object that is capable of moving. When the object moves, the dynamic geofence also moves such that the boundaries of the dynamic geofence are fixed relative to the object, even as the object moves. Group members may be associated with the dynamic geofence such that they are alerted when a group member crosses the dynamic geofence boundary.
    Type: Grant
    Filed: July 12, 2019
    Date of Patent: August 18, 2020
    Assignee: DIGITAL MANAGEMENT, LLC
    Inventors: Christopher Tengwall, Eric Harris, Joseph W. Cole, Jr., Jeremy R. Hettenhouser, Richard P. Cann, Christopher T. Williams
  • Patent number: 10319318
    Abstract: A driving method of an image display device includes detecting an amount of data change of an input image and calculating a moving speed of the input image, determining whether the image moving speed is within a preset reference range, when the image moving speed is within the reference range, driving a display screen according to an input frame frequency synchronized to the input image, and when the image moving speed is out of the reference range, down-modulating a frame frequency for displaying the input image to a frequency lower than the input frame frequency and driving the display screen according to a modulated frame frequency.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: June 11, 2019
    Assignee: LG Display Co., Ltd.
    Inventors: Changkun Kim, Hongsung Song, Taeyoung Jung
  • Patent number: 10225466
    Abstract: An imaging apparatus includes an imaging unit and a transmission unit. The imaging unit is configured to capture two images that are different from each other by a predetermined amount of an optical distance (focus) between an objective lens and an imaging device having a first resolution. The transmission unit is configured to transmit the captured images.
    Type: Grant
    Filed: May 9, 2018
    Date of Patent: March 5, 2019
    Assignee: Sony Corporation
    Inventor: Hiroshi Arai
  • Patent number: 10192138
    Abstract: Techniques and systems are provided for identifying unknown content. For example, a number of vectors out of a plurality of vectors projected from an origin point can be determined that are between a reference data point and an unknown data point. The number of vectors can be used to estimate an angle between a first vector (from the origin point to a reference data point) and a second vector (from the origin point to an unknown data point). A distance between the reference data point and the unknown data point can then be determined. Using the determined distance, candidate data points can be determined from a set of reference data points. The candidate data points can be analyzed to identify the unknown data point.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: January 29, 2019
    Assignee: INSCAPE DATA, INC.
    Inventor: Zeev Neumeier
  • Patent number: 9961365
    Abstract: Provided is a method of determining an up-sampling filter to accurately interpolate a sample value for each sampling position according to an up-sampling ratio for scalable video encoding and decoding. An up-sampling method for scalable video encoding includes determining a phase shift between a pixel of a low resolution image and a pixel of a high resolution image based on a scaling factor between the high resolution image and the low resolution image; selecting at least one filter coefficient set corresponding to the determined phase shift from filter coefficient data comprising filter coefficient sets corresponding to phase shifts; generating the high resolution image by performing filtering on the low resolution image by using the selected at least one filter coefficient set; and generating an improvement layer bitstream comprising high resolution encoding information generated by performing encoding on the high resolution image and up-sampling filter information indicating the determined phase shift.
    Type: Grant
    Filed: January 6, 2014
    Date of Patent: May 1, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Elena Alshina, Alexander Alshin
  • Patent number: 9769417
    Abstract: Aspects relate to transmission of metadata from a source to a sink device, and optionally through one or more intermediaries. A source device encodes metadata into what would have been a blanking area of a field to be transmitted, according to a current video format. The source device encodes a timing for an active video data signal that is modified from a timing that would be used only for transmission of video data at a current resolution. A separate indicator from the source, or a negotiation between source and sink allows the sink to determine what part of the data indicated as being active video data is metadata, and to use that metadata for controlling aspects of the video display, and to use other parts of the received video data as video data for display. A sink can signal supported capabilities to a source.
    Type: Grant
    Filed: October 30, 2015
    Date of Patent: September 19, 2017
    Assignee: Lattice Semiconductor Corporation
    Inventors: Sergey Yarygin, Laurence A Thompson, Chandlee B Harrell, Gyudong Kim
  • Patent number: 9756321
    Abstract: A three-dimensional image display device and a method for displaying a three-dimensional image, and particularly relates to a three-dimensional image display device improving movement degradation and a method for displaying a three-dimensional image. A three-dimensional image display device includes: a display panel; a movement determining unit determining whether an object of a 3D image moved in a direction perpendicular to a surface of the display panel based on image information; a hole-filling unit filling a hole generated according to the movement of the object with an edge region of the object to compensate a movement degradation when it is determined that the object moved in the direction perpendicular to the surface of the display panel; and a 3D input image signal generator generating a 3D input image signal based on the image information compensated with the movement degradation.
    Type: Grant
    Filed: December 13, 2013
    Date of Patent: September 5, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Mun-San Park, Cheol Woo Park
  • Patent number: 9641875
    Abstract: In a video signal transmitting device, a basic image generation unit extracts, for each of the color signal component, pixels constituting a frame of the color signal component at a uniform interval two-dimensionally and two-dimensionally arranges the extracted pixels in a prescribed arrangement to generate a prescribed number of color signal basic images. A basic stream generation unit extracts, for each of the color signal basic images, pixels of the color signal basic image generated by the basic image generation unit in a prescribed sequence to generate a basic stream. A link signal generation unit synthesizes a prescribed number of basic streams in the same or different color signal components generated by the basic stream generation unit, encodes bit-length units of the synthesized basic streams to a different bit length, and generates a link signal having a prescribed speed.
    Type: Grant
    Filed: September 4, 2013
    Date of Patent: May 2, 2017
    Assignee: NIPPON HOSO KYOKAI
    Inventors: Yukihiro Nishida, Ryohei Funatsu, Yuichi Kusakabe, Takayuki Yamashita, Makoto Okui, Takuji Soeno
  • Patent number: 9483812
    Abstract: Methods and systems for digitally enhancing the characteristics of an image sequence including video and motion picture images are provided. Highly accurate motion information represented by trajectories are generated through analyzing available image frames in the image sequence. Some embodiments of the present invention relate to generating multiple layer trajectories from an image sequence. Certain aspects may be applicable to the enhancement of three-dimensional (3D) image sequences including 3D video and 3D motion pictures.
    Type: Grant
    Filed: March 25, 2014
    Date of Patent: November 1, 2016
    Assignee: IMAX Corporation
    Inventors: Ning Zhang, Samuel Ziheng Zhou
  • Patent number: 9351012
    Abstract: Provided is a method derives a reference picture index and a motion vector of a current prediction unit, generates a prediction block of the current prediction unit using the reference picture index and the motion vector, generating a residual block by inverse-scan, inverse-quantization and inverse transform, and generates reconstructed pixels using the prediction block and the residual block. Prediction pixels of the prediction block is generated using an interpolation filter selected based on the motion vector. Accordingly, the coding efficiency of the motion information is improved by including various merge candidates. Also, the computational complexity of an encoder and a decoder is reduced by selecting different filter according to location of the prediction pixels determined by the motion vector.
    Type: Grant
    Filed: February 10, 2015
    Date of Patent: May 24, 2016
    Assignee: INFOBRIDGE PTE. LTD.
    Inventors: Soo Mi Oh, Moonock Yang
  • Patent number: 9350899
    Abstract: Described are a system and method to determine the initial luma and chroma phase such that the resulting image after chroma upsampling and scaling has zero phase difference between the luma and chroma components. Particularly, the described method may include receiving a subsampled input image having luma and chroma values. The method may then perform a phase computation of the input image to determine scaling parameters such that phase differences between all color components of an output image are zero. The method may then include performing a combined upscaling and upsampling process on the input image using the scaling parameters to generate an upscaled image with no phase difference from the subsampled image.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: May 24, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Min Li, Chia-Yuan Teng, Gregory Allan VanSickle
  • Patent number: 9338457
    Abstract: In an image information encoder (10) supplied with an interlaced image in a 4:2:0 format, a color-difference signal phase correction unit (22) shifts, for motion estimation and compensation, the phase of the color-difference signal in a reference image block adaptively to a selected motion estimate mode and the value mv of vertical component in motion vector information so that the reference image block will coincide in phase of the color-difference signal with an input image block.
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: May 10, 2016
    Assignee: SONY CORPORATION
    Inventors: Kazushi Sato, Osamu Sunohara, Teruhiko Suzuki, Peter Kuhn, Yoichi Yagasaki
  • Patent number: 9318069
    Abstract: The disclosure describes procedures for dynamically employing a variable refresh rate at an LCD display of a consumer electronic device, such as a laptop computer, a tablet computer, a mobile phone, or a music player device. In some configurations, the consumer electronic device can include a host system portion, having one or more processors and a display system portion, having a timing controller, a buffer circuit, a display driver, and a display panel. The display system can receive image data and image control data from a GPU of the host system, evaluate the received image control data to determine a reduced refresh rate (RRR) for employing at the display panel, and then transition to the RRR, whenever practicable, to conserve power. In some scenarios, the transition to the RRR can be a transition from a LRR of 50 hertz or above to a RRR of 40 hertz or below.
    Type: Grant
    Filed: January 14, 2014
    Date of Patent: April 19, 2016
    Assignee: Apple Inc.
    Inventors: Prasanna Nambi, Jason N. Gomez, Fenghua Zheng, Paolo Sacchetto, Sandro H. Pintz, Taesung Kim, Christopher P. Tann, Marc Albrecht, David W. Lum
  • Patent number: 8965135
    Abstract: A system for cadence break detection is provided. The system includes a field system receiving a plurality of fields of image data. A threshold system generates a cadence break signal if a difference in two fields exceeds a predetermined threshold. A sequence system generates the cadence break signal if a sequence of differences between the plurality of fields does not match a predetermined sequence.
    Type: Grant
    Filed: March 19, 2008
    Date of Patent: February 24, 2015
    Assignee: Conexant Systems, Inc.
    Inventor: Carl Alelyunas
  • Patent number: 8941667
    Abstract: The invention generally provides a method and apparatus for up-converting the frame rate of a digital video signal, the method comprising: receiving a digital video signal containing a first frame and a second frame; finding in one of the received frames, matches for objects in the other of the received frames; utilizing 3 dimensional position data in respect of the objects within the frames to determine 3 dimensional movement matrices for the matched objects; using the 3 dimensional movement matrices, determining the position of the objects in a temporally intermediate frame and thereby generating an interpolated frame, temporally between the first and second frame.
    Type: Grant
    Filed: January 29, 2010
    Date of Patent: January 27, 2015
    Assignee: Vestel Elektronik Sanayi ve Ticaret A,S.
    Inventors: Osman Serdar Gedik, Abdullah Aydin Alatan
  • Patent number: 8941864
    Abstract: Disclosed is an image processing apparatus which (i) determines whether or not characters to be subjected to a character recognition process in image data have a size larger than a predetermined size, (ii) in a case where the characters is determined as larger than the predetermined size, reduces at least a region including the characters so that the size of the characters fits within the predetermined size, and (iii) performs a character recognition process of the characters with use of the reduced image data.
    Type: Grant
    Filed: November 9, 2011
    Date of Patent: January 27, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hitoshi Hirohata, Akihito Yoshida, Atsuhisa Morimoto, Yohsuke Konishi
  • Patent number: 8928806
    Abstract: Evolution of a scene represented in a video sequence of input frames is analyzed. Output pixels of an output frame having a time position intermediate between time positions of the input frames are computed by combining respective input pixels of the input frames.
    Type: Grant
    Filed: November 19, 2010
    Date of Patent: January 6, 2015
    Assignee: Zoran (France) S.A.
    Inventor: Alexandre Mikhalenkov
  • Patent number: 8922712
    Abstract: In an embodiment, there is provided a video processing component comprising a compensation engine configured to generate pixels of a first video frame from a second video frame based at least in part on specified pixel motion; and an access buffer configured to store pixel data corresponding to pixels of the second video frame for reference by the compensation engine, wherein the pixel data is stored by the access buffer at different vertical resolutions depending on vertical distances of the pixels corresponding to the pixel data from a target pixel that is indicated by the compensation engine.
    Type: Grant
    Filed: March 24, 2014
    Date of Patent: December 30, 2014
    Assignee: Marvell International Ltd.
    Inventor: Vipin Namboodiri
  • Patent number: 8908093
    Abstract: The intended display aspect-ratio for video is determined automatically by analyzing an image to identify image blocks resulting from prior block-based processing of the video; comparing horizontal and vertical dimensions of those image blocks with horizontal and vertical dimensions of the image, with black border regions excluded as necessary; and determining from that comparison a display aspect ratio for the video.
    Type: Grant
    Filed: January 15, 2013
    Date of Patent: December 9, 2014
    Assignee: Snell Limited
    Inventors: Michael James Knee, Maurice Snell
  • Patent number: 8902358
    Abstract: A deinterlacing apparatus includes a buffer to receive a plurality of consecutive fields of an interlaced video and a field combination module coupled to the buffer to deinterlace the interlaced video in accordance with cadence of the interlaced video. The deinterlacing apparatus also includes a cadence detection module to detect the cadence by (1) causing each of the fields to be combined with its preceding field into a frame and with its subsequent field into another frame to obtain a plurality of combined frames, (2) determining a comb factor of each of the combined frames to obtain a sequence of comb factors of the combined frames, and (3) determining if the sequence of comb factors of the combined frames follows a pre-determined repeating pattern. A cadence detection method is also described.
    Type: Grant
    Filed: July 26, 2012
    Date of Patent: December 2, 2014
    Assignee: Altera Corporation
    Inventors: Jon Michael Harris, Vivek Gowri-Shankar, Boon Hong Oh
  • Patent number: 8891017
    Abstract: A video input section acquires a video signal formed of a plurality of frames. A frame separator separates the video signal acquired by the video input section on a frame basis and distributes the separated video signals. A plurality of parallel processors perform video processing in parallel on the separated video signals corresponding to the frames separated and distributed by the frame separator. A frame combiner combines the separated video signals on which the plurality of parallel processors have performed the video processing.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: November 18, 2014
    Assignee: Seiko Epson Corporation
    Inventor: Kazuyoshi Kegasawa
  • Patent number: 8878990
    Abstract: An image signal processing apparatus, which is capable of receiving, as inputs, images transmitted in first and second formats, includes a determination circuit that determines the first and second formats on the basis of correlation among a plurality of pieces of pixel data input in parallel with one another from the first to n-th channels, and a mapping circuit that sorts the plurality of pieces of pixel data in accordance with the determination result obtained by the determination circuit. According to the aforementioned configuration, an image signal processing apparatus that can handle two formats that divide the original image into n images and transmit the n images on n channels can be realized.
    Type: Grant
    Filed: May 22, 2012
    Date of Patent: November 4, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Takeshi Kumakura
  • Patent number: 8854540
    Abstract: A signal transmission apparatus includes: a vertical rectangular region sampling-out control section that obtains vertical rectangular regions, repeatedly performs a process where pixel samples read out from each line of class images are mapped to each line of video data regions of sub-images, maps pixel samples to each line of the video data regions, and repeatedly maps pixel samples to the next line; a line sampling-out control section that samples out the pixel samples every other line from each line of the sub-images to which the pixel samples have been mapped, so as to generate an interlace signal; a word sampling-out control section that samples out for each word the pixel samples which have been sampled out for each line so as to be mapped to video data regions of an HD-SDI prescribed by the SMPTE 435-2; and a readout control section that outputs the HD-SDI.
    Type: Grant
    Filed: May 17, 2012
    Date of Patent: October 7, 2014
    Assignee: Sony Corporation
    Inventor: Shigeyuki Yamashita
  • Patent number: 8830393
    Abstract: Spatial or temporal interpolation may be performed upon source video content to create interpolated video content. A video signal including the interpolated video content and non-interpolated video content (e.g. the source video content) may be generated. At least one indicator for distinguishing the non-interpolated video content from the interpolated video content may also be generated. The video signal and indicator(s) may be passed from a video source device to a video sink device. The received indicator(s) may be used to distinguish the non-interpolated video content from the interpolated video content in the received video signal. The non-interpolated video content may be used to “redo” the interpolation or may be recorded to a storage medium.
    Type: Grant
    Filed: December 18, 2008
    Date of Patent: September 9, 2014
    Assignee: ATI Technologies ULC
    Inventor: David Glen
  • Patent number: 8830398
    Abstract: It is determined whether or not an input image is an image converted from an image with a relatively low resolution based on one frame of an image. A resolution determination device includes: an edge strength calculator configured to obtain an edge strength of a pixel included in an input image based on luminance of the pixel and luminance of a pixel adjacent to the pixel, for each of a plurality of pixels included in the input image; and a resolution determiner configured to determine whether or not the input image is an image upconverted from an image with a predetermined resolution or less, based on distribution of the edge strengths.
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: September 9, 2014
    Assignee: Panasonic Corporation
    Inventors: Koichi Inoue, Shinichi Tomioka, Atsuhisa Kageyama
  • Patent number: 8797457
    Abstract: An apparatus configured to match an input frame rate of a video stream with an output frame rate of an output stream, the apparatus comprising, at least one memory buffer, an output frame generator, and a threshold measurement unit, the threshold measurement unit configured to generate a control feedback, wherein the box is configured to analyze the control feedback to monitor a state of the at least one memory buffer, the threshold measurement unit further configured analyze the control feedback to regulate between two or more different settings, wherein the two or more different settings include slowing down or speeding up the output frame, wherein the two or more different settings further include slowing down or speeding up of the line rate of the output stream.
    Type: Grant
    Filed: September 13, 2006
    Date of Patent: August 5, 2014
    Assignee: Entropic Communications, Inc.
    Inventor: Andrew Stevens
  • Patent number: 8792052
    Abstract: The frame rate of a pause frame of a moving image is detected. The number of frame images of the moving image to be used in a process of increasing the resolution of a low-resolution image is determined such that a larger number of frame images is set for a higher detected frame rate. In a super-resolution process, a high-resolution image is generated using the determined number of continuous frame images including the pause frame of the moving image. This makes it possible to appropriately determine the number of frames to be referred to in the super-resolution process in accordance with the frame rate of a moving image when generating a high-resolution image from the frames of a low-resolution moving image.
    Type: Grant
    Filed: October 27, 2010
    Date of Patent: July 29, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventor: Toru Koike
  • Patent number: 8780267
    Abstract: It is an object to prevent the image quality deterioration of a moving image likely to include a plurality of the same consecutive images such as a movie video and an animation video due to the motion-compensated frame rate conversion (FRC) processing. An image displaying device is provided with an FRC portion (10) for converting the number of frames in an input image signal by interpolating an image signal to which a motion compensation processing has been given between the frames in the input image signal, a genre determining portion (14) for determining whether the input image signal is a predetermined genre, and a controlling portion (15).
    Type: Grant
    Filed: April 4, 2007
    Date of Patent: July 15, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Takeshi Mori, Seiji Kohashikawa, Hiroyuki Furukawa, Masafumi Ueno, Kenichiroh Yamamoto, Takashi Yoshii
  • Patent number: 8780272
    Abstract: Techniques and tools for high accuracy position calculation for picture resizing in applications such as spatially-scalable video coding and decoding are described. In one aspect, resampling of a video picture is performed according to a resampling scale factor. The resampling comprises computation of a sample value at a position i,j in a resampled array. The computation includes computing a derived horizontal or vertical sub-sample position x or y in a manner that involves approximating a value in part by multiplying a 2n value by an inverse (approximate or exact) of the upsampling scale factor. The approximating can be a rounding or some other kind of approximating, such as a ceiling or floor function that approximates to a nearby integer. The sample value is interpolated using a filter.
    Type: Grant
    Filed: June 6, 2013
    Date of Patent: July 15, 2014
    Assignee: Microsoft Corporation
    Inventor: Gary J. Sullivan
  • Patent number: 8773585
    Abstract: A method for identifying state of macro block of de-interlacing computing and an image processing apparatus are provided, the method is as follows. A video frame is divided into a plurality of regions, where each of the regions includes a plurality of macro blocks. Then, a basic threshold corresponding to each of the regions is provided according to a position of each of the regions in the video frame, and a first macro block is identified to be a first type macro block or a second type macro block according to the basic threshold corresponding to one of the regions where the first macro block of the macro blocks locates. Then, a corresponding de-interlacing computing step is performed on the first macro block according to an result that the first macro block is identified as the first type macro block or the second type macro block.
    Type: Grant
    Filed: January 23, 2013
    Date of Patent: July 8, 2014
    Assignee: ALi (Zhuhai) Corporation
    Inventors: Jin-Song Wen, Feng Gao, Jin-Fu Wang
  • Patent number: 8760584
    Abstract: A memory space configuration method applied in a video signal processing apparatus is provided. The method includes: arranging a first memory space and a second memory space in a memory, the first and second memory spaces being partially overlapped; determining a type of a signal source; when the signal source is a first video signal source, enabling a first processing circuit and buffering data associated with the first video signal source by using the first memory space; and, when the signal source is a second video signal source, enabling a second processing circuit and buffering data associated with the second video signal source by using the second memory space. The second processing circuit is disabled when the first processing circuit is enabled; the first processing circuit is disabled when the second processing circuit is enabled.
    Type: Grant
    Filed: May 14, 2013
    Date of Patent: June 24, 2014
    Assignee: MSTAR Semiconductor, Inc.
    Inventor: Po-Jen Yang
  • Patent number: 8743108
    Abstract: A liquid crystal display includes a liquid crystal panel having liquid crystal cells in a matrix array at crossings of data lines and gate lines, a data drive circuit for providing data signals to the data lines, a gate drive circuit for providing gate signals to the gate lines, and a timing controller for receiving video data and timing signals, for checking a frame frequency of the video data in real-time to detect changes in the frame frequency, and for outputting a gate timing control signal to control the gate driving circuit in response to changes in the frame frequency and a data timing control signal for controlling the data driving circuit, wherein the gate timing control signal controls black data insertion percentage in a frame.
    Type: Grant
    Filed: November 24, 2008
    Date of Patent: June 3, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Suhyuk Jang, Jongwoo Kim
  • Patent number: 8718448
    Abstract: Some embodiments of the invention provide a media-editing application that performs frame rate conversion detection on a video. For a video that has been converted from one frame rate and format to another frame rate and format, the application detects the conversion method that has been used in the conversion of the video. Some embodiments perform this frame rate conversion detection by detecting patterns of repeating fields and/or frames in a video sequence created by the different conversion processes. Some embodiments compute (i) a frame difference value for each consecutive frames, (ii) a correlation score for the first and second fields of each frame, and (iii) a correlation score for the second field of each frame and the first field of a succeeding frame. Frame difference values are compared with each other to detect repeated frames and correlation scores are compared with each other to detect repeated fields.
    Type: Grant
    Filed: May 4, 2011
    Date of Patent: May 6, 2014
    Assignee: Apple Inc.
    Inventor: Ken Kengkuan Lin
  • Patent number: 8692933
    Abstract: In an embodiment, there is provided a video processing component comprising a compensation engine configured to generate pixels of a first video frame from a second video frame based at least in part on specified pixel motion; and an access buffer configured to store pixel data corresponding to pixels of the second video frame for reference by the compensation engine, wherein the pixel data is stored by the access buffer at different vertical resolutions depending on vertical distances of the pixels corresponding to the pixel data from a target pixel that is indicated by the compensation engine.
    Type: Grant
    Filed: October 16, 2012
    Date of Patent: April 8, 2014
    Assignee: Marvell International Ltd.
    Inventor: Vipin Namboodri
  • Patent number: 8654260
    Abstract: An image processing apparatus according to the present invention extracts a characteristic value of a luminance in relation to respective fields of an input video, and determines the presence of a scene change between adjacent fields. A gamma curve is then generated on the basis of the magnitude of the characteristic value. When a difference in the characteristic value between fields is larger than a predetermined value and a scene change does not exist, the gamma curve to be applied to a subsequent field is modified such that the correction characteristic of the gamma curve does not vary rapidly. The luminance is then corrected using the modified gamma curve.
    Type: Grant
    Filed: November 12, 2012
    Date of Patent: February 18, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Taisuke Nishio, Yuki Shindo
  • Patent number: 8639042
    Abstract: Described is a hierarchical filtered motion field technology such as for use in recognizing actions in videos with crowded backgrounds. Interest points are detected, e.g., as 2D Harris corners with recent motion, e.g. locations with high intensities in a motion history image (MHI). A global spatial motion smoothing filter is applied to the gradients of MHI to eliminate low intensity corners that are likely isolated, unreliable or noisy motions. At each remaining interest point, a local motion field filter is applied to the smoothed gradients by computing a structure proximity between sets of pixels in the local region and the interest point. The motion at a pixel/pixel set is enhanced or weakened based on its structure proximity with the interest point (nearer pixels are enhanced).
    Type: Grant
    Filed: June 22, 2010
    Date of Patent: January 28, 2014
    Assignee: Microsoft Corporation
    Inventors: Zicheng Liu, Yingli Tian, Liangliang Cao, Zhengyou Zhang
  • Patent number: 8619189
    Abstract: An image processing apparatus, which converts a frame rate by dividing an input frame into sub-frames and outputting the sub-frames, includes a minimum value filter unit, a low-pass filter processing unit, a generation unit, and a switching unit. In an input frame, the minimum value filter unit selects a maximum value of minimum values from the minimum values of pixel values in each horizontal line in a predetermined area including peripheral pixels of a processing target pixel, and performs pre-processing to replace the processing target pixel with the maximum value. The low-pass filter processing unit performs low-pass filter processing on the pre-processed input frame and generates a first sub-frame. The generation unit generates a second sub-frame from the first sub-frame and the input frame. The switching unit switches the first sub-frame and the second sub-frame at predetermined timing and outputs a sub-frame.
    Type: Grant
    Filed: December 10, 2010
    Date of Patent: December 31, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yasushi Ito, Eisaku Tatsumi, Kazuya Kitada
  • Patent number: 8582029
    Abstract: A picture signal processing unit having a first and a second double rate conversion section, a storage section, and a quadruple rate conversion section is provided. The first double rate conversion section inserts a first interpolation frame between a couple of successive original frames to output the original frames and the first interpolation frames. The second double rate conversion section generates a second and a third interpolation frames and allocates the second and the third interpolation frames between the couple of successive original frames to output the second and the third interpolation frames. The storage section stores the original frame and the first to the third interpolation frames. The quadruple rate conversion section sequentially reads out the original frame and the first to the third interpolation frames from the storage section in a quadruple rate to output the original frame and the first to the third interpolation frames.
    Type: Grant
    Filed: August 19, 2009
    Date of Patent: November 12, 2013
    Assignee: Sony Corporation
    Inventors: Shinichiro Miyazaki, Tomoichi Fujisawa
  • Patent number: 8570435
    Abstract: A video processing method and a device thereof are described. The method includes the steps as follows. An input video signal is received, in which a single period of the input video signal has a plurality of first input frames and a plurality of second input frames. The input video signal is processed, so as to generate an output video signal, in which a single period of the output video signal has a plurality of first output frames and a plurality of second output frames, and an amount of the first output frames is the same as an amount of the second output frames. A sum of the amount of the first output frames and the amount of second output frames is an integer multiple of a sum of an amount of the first input frames and an amount of the second input frames.
    Type: Grant
    Filed: October 2, 2009
    Date of Patent: October 29, 2013
    Assignee: Realtek Semiconductor Corp.
    Inventors: Jin-Sheng Gong, Hsieh Chun-Hsing
  • Patent number: 8564719
    Abstract: An information processing apparatus that has a frame buffer that stores an input video signal, that loads a video signal at an asynchronous timing with the video signal input from the frame buffer and then that I/P-converts the loaded video signal from an interlaced signal into a progressive signal includes: pulldown determination means that determines whether the input video signal is subjected to a process of skipping or repeating a source video signal through a pulldown process; and control means that, when it is determined that the input video signal is subjected to the process of skipping or repeating, controls a process of skipping or repeating the loaded video signal to obtain a pulldown pattern supported at an I/P conversion side at which the I/P-conversion is performed, when the loaded video signal is converted from an interlaced signal into a progressive signal.
    Type: Grant
    Filed: April 6, 2009
    Date of Patent: October 22, 2013
    Assignee: Sony Corporation
    Inventors: Toshiyuki Yamauchi, Nobutoshi Shida, Hiroshi Kanma
  • Patent number: 8553145
    Abstract: An image de-interlacing method comprises: (a) defining a first threshold value and a second threshold value, wherein the second threshold value is larger than the first threshold value; (b) generating a parameter according to motion level of a interlaced image; and (c) utilizing a first interpolation method and a second interpolation method to jointly process the interlaced image if the parameter is in a range between the first threshold value and the second threshold value.
    Type: Grant
    Filed: January 3, 2008
    Date of Patent: October 8, 2013
    Assignee: MStar Semiconductor, Inc.
    Inventors: Yu-Jen Wang, Yu-Sen Lin, Scott Jen
  • Patent number: 8493513
    Abstract: Techniques and tools for high accuracy position calculation for picture resizing in applications such as spatially-scalable video coding and decoding are described. In one aspect, resampling of a video picture is performed according to a resampling scale factor. The resampling comprises computation of a sample value at a position i, j in a resampled array. The computation includes computing a derived horizontal or vertical sub-sample position x or y in a manner that involves approximating a value in part by multiplying a 2n value by an inverse (approximate or exact) of the upsampling scale factor. The approximating can be a rounding or some other kind of approximating, such as a ceiling or floor function that approximates to a nearby integer. The sample value is interpolated using a filter.
    Type: Grant
    Filed: May 6, 2011
    Date of Patent: July 23, 2013
    Assignee: Microsoft Corporation
    Inventor: Gary J. Sullivan
  • Patent number: 8462266
    Abstract: An image processing device and method, and an image display device and method which realizes a high-definition displayed video by reducing motion blur caused by a holding-type display system and reducing motion blurs of the displayed video caused by the time integration effect of an image sensor while suppressing deterioration of an image. The image display device includes a motion vector detection section (101) which detects a motion vector in each predetermined region between the frames of an inputted image signal, and an edge emphasis part (2) which emphasizes the high-frequency component of the inputted image signal and an interpolated image signal generated by an FRC part (100) according to the motion amount of the inputted image signal detected by the motion vector detection section (101). This compensates the high-frequency component attenuated by the time integration effect of the image sensor to reduce the apparent motion blurs to improve the sharpness of the displayed image.
    Type: Grant
    Filed: April 18, 2008
    Date of Patent: June 11, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Masafumi Ueno, Kenichiroh Yamamoto, Takashi Yoshii, Hiroyuki Furukawa, Yasuhiro Yoshida, Ikuko Tsubaki
  • Patent number: 8442378
    Abstract: A video recording device includes: a first identification block that reads video information from a first recording medium in which video information on an analog television broadcast is stored, and identifies the broadcasting format of the read video information; a recording execution block that records the video information, which is read from the first recording medium, in a second recording medium other than the first recording medium; a second identification block that when the video information is recorded in the second recording medium by the recording execution block, identifies the broadcasting format of the video information to be recorded in the second recording medium; and a format decision block that decides whether the broadcasting format identified by the second identification block agrees with the broadcasting format identified by the first identification block.
    Type: Grant
    Filed: November 18, 2008
    Date of Patent: May 14, 2013
    Assignee: Funai Electric Co., Ltd.
    Inventor: Noriyuki Fujii
  • Patent number: 8441573
    Abstract: Systems and methods of coding progressive content with isolated fields for conversion to interlaced display are provided. Some systems and methods may find use in, for example, digital video compression systems and methods. Film material may be encoded as video material with an intended field polarity and an explicit 3:2 pull-down operation for interlaced display (e.g., a 30-frames-per-second display).
    Type: Grant
    Filed: January 25, 2011
    Date of Patent: May 14, 2013
    Assignee: Broadcom Corporation
    Inventors: Sherman (Xuemin) Chen, Alexander G. MacInnis
  • Patent number: 8416343
    Abstract: A signal processing device and method, a program, and a recording medium configured so as to be able to detect 2-3 pulldown sequences, from various types of input, in a precise manner. A state estimation unit determines whether or not still positions between 10 fields to be handled fit the still positions of a 2-3 pulldown pattern configured of 12 fields including one sequence, using a difference evaluation value, a threshold value, and feature quantity, calculated by an evaluation value feature quantity calculating unit from the field of an 60I signal from an input terminal, and a field positioned temporally two fields earlier in the field memory, determination is made regarding whether or not a pattern regarding which determination has been made to fit has repeated transition in a transition order which the 2-3 pulldown pattern has for a predetermined number of times or more, and processing of an inverse 2-3 pd conversion unit is controlled according to the results of determination.
    Type: Grant
    Filed: September 15, 2006
    Date of Patent: April 9, 2013
    Assignee: Sony Corporation
    Inventors: Tomohiro Yasuoka, Takafumi Morifuji, Kunio Kawaguchi
  • Patent number: 8405767
    Abstract: A field pair correlation acquisition part obtains a correlation for six or more fields which are continuous in time series for each field pair formed of two adjacent fields having the same attribute. A first determination part determines an input image as a 2:2 pull-down image based on a determination condition, the determination condition being that a pattern in which the correlation of each of the field pairs of one attribute changes along with a time direction matches a pattern in which the correlation of each of the field pairs of the other attribute changes along with the time direction.
    Type: Grant
    Filed: November 11, 2008
    Date of Patent: March 26, 2013
    Assignee: Renesas Electronics Corporation
    Inventor: Ming Shao
  • Patent number: 8368810
    Abstract: A video processing apparatus for de-interlacing includes a video decoder and a de-interlacing circuit. The video decoder decodes a video data stream to generate an interlaced video signal and transmits a first interlaced control signal. The de-interlacing circuit is coupled to the video decoder, and includes a detecting unit and an interlacing to progressive converting unit. The detecting unit generates a second interlaced control signal according to the interlaced video signal and the first interlaced control signal. The interlacing to progressive converting unit is coupled to the detecting unit for receiving the interlaced video signal as well as the second interlaced control signal and for converting the interlaced video signal into a first progressive video signal according to the second interlaced control signal.
    Type: Grant
    Filed: January 20, 2010
    Date of Patent: February 5, 2013
    Assignee: Realtek Semiconductor Corp.
    Inventors: Jin-Sheng Gong, Chun-Hsing Hsieh
  • Patent number: 8358373
    Abstract: In an image displaying device provided with a frame rate conversion (FRC) portion, the image quality deterioration in a moving image likely to include a plurality of the same consecutive images due to a FRC processing is prevented. The FRC portion (100) of the image displaying device includes a motion vector detecting portion (101) that detects motion vector information from an input image signal, an interpolation frame generating portion (106) that generates interpolation frames based on the motion vector information obtained by the motion vector detecting portion (101) and a same image detecting portion (105) that detects a case where the same images continue in the input image signal.
    Type: Grant
    Filed: May 18, 2007
    Date of Patent: January 22, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kenichiroh Yamamoto, Hiroyuki Furukawa, Masafumi Ueno, Yasuhiro Yoshida