Specified Processing Of Frame Or Field Difference Signal (e.g., Noise Reduction, Key Signal Spreading) Patents (Class 348/701)
  • Patent number: 10303950
    Abstract: Automated video correction techniques are disclosed. In some examples, an example method may include identifying features in each video frame of the multiple video frames in a video, and identifying one or more major scenes in the video based on a matching of the features in each video frame. The method may also include, for each identified major scene, identifying a key reference frame based on the features in each video frame, identifying one or more bad video frames based on a comparison with the key reference frame, and identifying one or more sequences of bad video frames based on the identified one or more bad video frames. The video may then be corrected by removing the identified one or more sequences of bad video frames from the video.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: May 28, 2019
    Assignee: Adobe Inc.
    Inventors: Ajay Bedi, Sourabh Gupta, Saurabh Gupta
  • Patent number: 10271066
    Abstract: A fallback performing method including: calculating unreliability of a motion vector in a block included in a moving object in two frames classified in terms of time; calculating discontinuity of the motion vector for a predetermined time; calculating a fallback level from the unreliability and the discontinuity; and performing fallback based on the calculated fallback level.
    Type: Grant
    Filed: May 9, 2018
    Date of Patent: April 23, 2019
    Assignee: ANAPASS INC.
    Inventors: Tae Jin Kim, Daehyun Kim, Jae Hun Lee
  • Patent number: 10248732
    Abstract: Methods, systems, and computer-storage media having computer-usable instructions embodied thereon for identifying related entities are provided. One or more entities may be identified from a search query. The one or more entities may include any identifiable term having related information associated therewith. An entity store may be referenced to identify one or more related entities related to the entity. The one or more related entities, along with their relationship(s) to the entity (and one another, perhaps) may then be ranked and displayed to a user.
    Type: Grant
    Filed: October 26, 2015
    Date of Patent: April 2, 2019
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Dmitry Zhiyanov, Deqing Chen, Yan Ke
  • Patent number: 10183843
    Abstract: The present invention relates to step roller monitoring and maintenance personnel monitoring of a passenger conveyor, and belongs to the field of passenger conveyor technologies. In the monitoring system and monitoring method of the present invention, an imaging sensor and/or a depth sensing sensor is used to sense the step roller/maintenance personnel of the passenger conveyor to acquire data frames, and the data frames are analyzed and processed to monitor whether the movement or position of the step roller/activity or position of the maintenance personnel is in a normal state.
    Type: Grant
    Filed: July 28, 2017
    Date of Patent: January 22, 2019
    Assignee: OTIS ELEVATOR COMPANY
    Inventors: ZhaoXia Hu, JianGuo Li, Alois Senger, Hui Fang, Zhen Jia, Jianwei Zhao, Qiang Li, Anna Su, Alan Matthew Finn, Wei Ge, Yanying Chen, LongWen Wang, DuEon Kim
  • Patent number: 10080062
    Abstract: Provided are devices, computer-program products, and methods for removing redundant data associated with frames. For example, a method can include receiving an initial frame, determining initial cue data for the initial frame, and sending the initial cue data to a server. The method can further include receiving a new frame and determining new cue data for the new frame. The method can further include identifying a pixel value range. The method can further include determining a pixel value difference between an initial pixel data sample and a new pixel data sample. The method can further include determining the pixel value difference is within the pixel value range and updating the new cue data by removing the new pixel data sample from the new cue data when the pixel value difference is within the pixel value range. The method can further include sending the updated new cue data to the server.
    Type: Grant
    Filed: July 14, 2016
    Date of Patent: September 18, 2018
    Assignee: INSCAPE DATA, INC.
    Inventors: Zeev Neumeier, Michael Collette
  • Patent number: 9628806
    Abstract: Method of differential compression of the values of a matrix, in which the reference cell is chosen in such a way that the difference between the initial value, contained in a cell to be compressed, and the decompressed value of the reference cell is a minimum.
    Type: Grant
    Filed: October 7, 2013
    Date of Patent: April 18, 2017
    Inventors: Bruno Loubet, Nicolas Bessou
  • Patent number: 9514502
    Abstract: The present invention relates to computation of digital fingerprint of a video sequence. The invention presents systems and methods for quick identification of shot boundaries and extraction of fingerprints by processing one or more specific frames. The systems and methods are applied on uncompressed video or compressed video having inter-frame or intra-frame compression. The methods comprises of comparing two frames of the video having a gap in between and identifying a specific frame present in between the two frames such that the specific frame may have a shot boundary. Shot boundaries are calculated for the entire video and then a fingerprint is generated using all the shot boundaries present in the video.
    Type: Grant
    Filed: January 21, 2015
    Date of Patent: December 6, 2016
    Assignee: Interra Systems Inc.
    Inventors: Kushal Ghosh, Rishi Gupta
  • Patent number: 9113133
    Abstract: A circuit and method for detecting a vertical cut in a sequence of digital video images. Each pixel of a video frame is filtered then compared to a filter threshold. If the threshold is met, a current pixel bit is set as active. A delayed pixel bit is generated from the current pixel bit, and a changed pixel bit is generated if either but not both of the current pixel bit and the delayed pixel bit is active. Active pixels are counted. The count of active pixels in the current image and the count of active pixels in the delayed image are used to weight the active pixel count of the changed image. The counts are used to determine a change value for the current image. The change value may be a large positive value, a large negative value, or neither. A predefined pattern of the change values over a sequence of frames indicates a vertical cut in the sequence.
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: August 18, 2015
    Assignee: Prime Image Delaware, Inc.
    Inventor: Christopher Scott Gifford
  • Patent number: 9036089
    Abstract: A video sequence having a plurality of frames is received. A feature in a first frame from the plurality of frames and a first position of the feature in the first frame are detected. The position of the feature in a second frame from the plurality of frames is estimated to determine a second position. A displacement vector between the first position and the second position is also computed. A plurality of content characteristics is determined for the first frame and the second frame. The displacement vector is spatially diffused with a spatial filter over a frame from the plurality of frames to generate a spatially diffused displacement vector field. The spatial filter utilizes the plurality of content characteristics. A temporal filter temporally diffuses over a video volume the spatially diffused displacement vector field to generate a spatiotemporal vector field. The temporal filter utilizes the plurality of content characteristics.
    Type: Grant
    Filed: November 27, 2012
    Date of Patent: May 19, 2015
    Assignee: Disney Enterprises, Inc.
    Inventors: Aljosa Aleksej Andrej Smolic, Oliver Wang, Manuel Lang
  • Patent number: 9013634
    Abstract: Methods, apparatus, and computer-readable storage media for video completion that may be applied to restore missing content, for example holes or border regions, in video sequences. A video completion technique applies a subspace constraint technique that finds and tracks feature points in the video, which are used to form a model of the camera motion and to predict locations of background scene points in frames where the background is occluded. Another frame where those points were visible is found, and that frame is warped using the predicted points. A content-preserving warp technique may be used. Image consistency constraints may be applied to modify the warp so that it fills the hole seamlessly. A compositing technique is applied to composite the warped image into the hole. This process may be repeated until the missing content is filled on all frames.
    Type: Grant
    Filed: November 24, 2010
    Date of Patent: April 21, 2015
    Assignee: Adobe Systems Incorporated
    Inventors: Aseem O. Agarwala, Daniel Goldman, Daniel H. Leventhal
  • Patent number: 9001895
    Abstract: An image display device includes: an interpolation phase generator that generates an interpolation phase on the basis of downsampling frame information representing a downsampling timing at which at least one frame image of the image signal is thinned, and an interpolation frame generator that generates an interpolation frame image corresponding to the interpolation phase. The interpolation phase generator generates the interpolation phase such that a phase distance between a first interpolation frame image from among a plurality of interpolation frame images within one period of downsampling periods, and a second interpolation frame image that follows the first interpolation frame image becomes equal to a phase distance between mutually adjacent interpolation frame images obtained when phase distances between a plurality of interpolation frame images are equalized within one period of the downsampling periods.
    Type: Grant
    Filed: February 16, 2012
    Date of Patent: April 7, 2015
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Yoshihito Ohta, Tomoko Morita, Yutaka Nio
  • Patent number: 8977049
    Abstract: A method for estimating signal-dependent noise includes defining a plurality of pixel groups from among the image pixels. The method further includes computing, for one or more signal levels of the image, a difference value between two pixel groups, whereby a respective one or more difference values are computed collectively. The method determines an estimated noise response of the image as a function of the one or more computed difference values.
    Type: Grant
    Filed: January 8, 2010
    Date of Patent: March 10, 2015
    Assignee: NVIDIA Corporation
    Inventors: Timo Aila, Samuli Laine
  • Patent number: 8970710
    Abstract: A method and apparatus for measuring the quality of a video is provided. The method comprises: generating a frame loss pattern of the video by indicating whether each frame in the video is lost or successfully transmitted; and evaluating the quality of the video as a function of the generated t came loss pattern.
    Type: Grant
    Filed: November 30, 2010
    Date of Patent: March 3, 2015
    Assignee: Thomson Licensing
    Inventors: Xiao Dong Gu, De Bing Liu, Zhi Bo Chen
  • Patent number: 8934670
    Abstract: A method and system for real time processing of a sequence of video frames. A current frame in the sequence and at least one frame in the sequence occurring prior to the current frame is analyzed. Each frame includes a two-dimensional array of pixels. The sequence of video frames is received in synchronization with a recording of the video frames in real time. The analyzing includes performing a background subtraction on the at least one frame, which determines a background image and a static region mask associated with a static region consisting of a contiguous distribution of pixels in the current frame. The static region mask identifies each pixel in the static region upon the static region mask being superimposed on the current frame. The background image includes the array of pixels and a background model of the at least one frame and does not include any moving object.
    Type: Grant
    Filed: August 29, 2012
    Date of Patent: January 13, 2015
    Assignee: International Business Machines Corporation
    Inventors: Rogerio Schmidt Feris, Arun Hampapur, Zuoxuan Lu, Ying-li Tian
  • Patent number: 8928816
    Abstract: An activity recognition method, for recognizing continuous activities of several moving objects in the foreground of a video, includes: capturing and processing a training video to get a contour of a moving object; extracting a minimum bounding box of the contour in order to get parameters then transfer to feature vectors; constructing a decision tree model based on support vector machines (SVMs), for classifying the activities of the moving object according to the parameter and the feature vector of the training video; capturing and processing a testing video to get other parameters and using several formulas to generate feature vectors, and executing an algorithm for recognizing the activities of several moving objects in the foreground of the testing video. Said feature vectors are transformed from the parameters that in the testing and training videos. Via above descriptions, the method can recognize activities of foreground objects in the testing video.
    Type: Grant
    Filed: July 18, 2012
    Date of Patent: January 6, 2015
    Assignee: National Taiwan University of Science and Technology
    Inventors: Chin-Shyurng Fahn, Shih-Min Liu
  • Patent number: 8928813
    Abstract: A method of operating a computer system to reduce structured noise in a video is described. Patches in a frame of a sequence of video frames are selected using a modified non-local means (NLM) search algorithm with a reduced search complexity compared to conventional NLM search algorithms. The set of spatial neighboring patches in a frame is extended to include patches in adjacent frames of the video sequence. Patches in the adjacent frames are selected based, at least in part, on a projection of a location of a pixel in the frame into the adjacent frames using a motion estimation algorithm. An average value determined from the combined set of patches is used to replace the pixel currently being processed.
    Type: Grant
    Filed: October 28, 2010
    Date of Patent: January 6, 2015
    Assignee: Microsoft Corporation
    Inventor: Ce Liu
  • Patent number: 8913049
    Abstract: A motion detection method is adapted for an image display circuit including a motion detection circuit and an arbitration circuit. In this motion detection method, a number of motion quality observation windows are defined. Each motion quality observation window includes a start point and an ending point. In the motion quality observation windows, a write frame count value is adjusted according to a write frame command. At the end point of each motion quality observation window, if the write frame count value is equal to or bigger than a preset count value, an enable signal is outputted to the arbitration circuit to determine whether the image display circuit performs motion display. In the motion quality observation windows, the end point of the i-th motion quality observation window is located between the start point and the end point of the (i+1)-th motion quality observation window, where i is a positive integer.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: December 16, 2014
    Assignee: Novatek Microelectronics Corp.
    Inventors: Hsi-Chi Ho, Kuei-Chung Chang
  • Patent number: 8891020
    Abstract: A method and apparatus are provided for categorizing pre-processing video information derived from video content prior to processing the video content. The apparatus includes a categorizer for identifying at least one of scenes and shots in the video content that have a likelihood of causing errors during subsequent processing based on at least the pre-processing video information. Moreover, the categorizer is for categorizing the identified scenes and shots into one or more respective categories based on at least the pre-processing video information.
    Type: Grant
    Filed: December 11, 2007
    Date of Patent: November 18, 2014
    Assignee: Thomson Licensing
    Inventor: Anand Kapoor
  • Patent number: 8879003
    Abstract: Various implementations address distortion and quality measurements. Certain implementations relate to distortions resulting in a freeze-with-skip and/or a freeze-without-skip. In one implementation, a pause term provides an indication of distortion associated with a pause arising from not displaying one or more consecutive pictures that are not to be displayed. A motion term provides an indication of distortion associated with a related change in motion. A combined indicator is based on an addition of the pause term and the motion term. In another particular implementation, a first indicator indicates distortion across one or more types of distortive effects that results from not displaying a first set of pictures. A second indicator indicates corresponding distortion with respect to a second set of pictures. The first indicator and the second indicator are combined in a non-linear manner.
    Type: Grant
    Filed: November 28, 2011
    Date of Patent: November 4, 2014
    Assignee: Thomson Licensing
    Inventors: Xiaodong Gu, Debing Liu, Zhibo Chen
  • Patent number: 8872968
    Abstract: A method of determining a motion value for a missing pixel in an interlaced video field using an adaptive window. The method includes computing a first mean absolute difference (MAD) value for a pixel based on a 1×5 window, computing a second MAD value for the pixel using a 3×5 window, and selectively blending the first and second MAD values to form a resultant motion value.
    Type: Grant
    Filed: December 11, 2012
    Date of Patent: October 28, 2014
    Assignee: CSR Technology Inc.
    Inventor: Monica Man Kay Tang
  • Patent number: 8872979
    Abstract: Techniques are presented for analyzing audio-video segments, usually from multiple sources. A combined similarity measure is determined from text similarities and video similarities. The text and video similarities measure similarity between audio-video scenes for text and video, respectively. The combined similarity measure is then used to determine similar scenes in the audio-video segments. When the audio-video segments are from multiple audio-video sources, the similar scenes are common scenes in the audio-video segments. Similarities may be converted to or measured by distance. Distance matrices may be determined by using the similarity matrices. The text and video distance matrices are normalized before the combined similarity matrix is determined. Clustering is performed using distance values determined from the combined similarity matrix.
    Type: Grant
    Filed: May 21, 2002
    Date of Patent: October 28, 2014
    Assignee: Avaya Inc.
    Inventors: Amit Bagga, Jianying Hu, Jialin Zhong
  • Patent number: 8872977
    Abstract: According to one embodiment, a method is disclosed. The method includes performing a local content analysis on video data to classify pixels into singular pixels, motion pixels and static pixels.
    Type: Grant
    Filed: March 29, 2011
    Date of Patent: October 28, 2014
    Assignee: Intel Corporation
    Inventor: Yi-Jen Chiu
  • Patent number: 8860883
    Abstract: A method and apparatus are disclosed for providing a video signature representative of a content of a video signal. A method and apparatus are further disclosed for providing an audio signature representative of a content of an audio signal. A method and apparatus for detecting lip sync are further disclosed and take advantage of the method and apparatus disclosed for providing a video signature and an audio signature.
    Type: Grant
    Filed: November 30, 2009
    Date of Patent: October 14, 2014
    Assignee: Miranda Technologies Partnership
    Inventor: Pascal Carrières
  • Patent number: 8855213
    Abstract: Embodiments of the present invention provides a method and device for processing a source video. The method and device may provide computing an artifact estimation from differences among pixels selected from spatially-distributed sampling patterns in the source video; filtering the source video to produce a filtered version of the source video, computing a blending factor based on the artifact estimation in the source video, and computing an output video by blending the source video and the filtered version of the source video based on the blending factor.
    Type: Grant
    Filed: May 11, 2009
    Date of Patent: October 7, 2014
    Assignee: Apple Inc.
    Inventors: Gianluca Filippini, Xiaosong Zhou, Hsi-Jung Wu, James Oliver Normile, Xiaojin Shi, Ionut Hristodorescu
  • Patent number: 8854550
    Abstract: A data processing device includes a clock converter, a data converter, and an error detector. The clock converter is configured to receive a first clock signal, convert the first clock signal into a second clock signal, and output the second clock signal. The data converter is configured to receive first data, convert the first data into second data using the second clock signal, and output the second data. The error detector is configured to check whether the first clock signal is in a first clock state or a second clock state upon the first data transitioning to a first data state, and output an enable signal to the clock converter upon determining that the first clock signal has transitioned to the first clock state from the second clock state.
    Type: Grant
    Filed: November 4, 2013
    Date of Patent: October 7, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Tae-Pyeong Kim, Han-Kyul Lim, Cheon-Oh Lee
  • Patent number: 8836866
    Abstract: A TV or monitor with a sensor sensing radiation or light from the surroundings, where a controlling unit, on the basis of the sensed radiation or parameters of a video signal, frame rate converts an original video signal to an up converted video signal by determining additional images for the video signal, the additional images being determined on the basis of the determined radiation/light or parameter of the video signal in order to relatively reduce frame rate conversion generated artifacts when the radiation or light intensity is higher.
    Type: Grant
    Filed: March 25, 2010
    Date of Patent: September 16, 2014
    Assignee: Bang & Olufsen A/S
    Inventor: Henrik Haastrup
  • Patent number: 8804048
    Abstract: Systems and methods are provided for reducing motion blur in a video display. A system for reducing motion blur in a video display may include a motion detection circuit and a luminance control circuit. The motion detection circuit may be used to compare a plurality of frames in a video signal to generate a motion detection output signal that indicates whether the video signal includes an image that is in motion or a still image. The luminance control circuit may be used to vary luminance levels between two or more consecutive frames of the video signal when the motion detection output signal indicates that the video signal includes an image that is in motion. The luminance control circuit further may also be used to discontinue varying the luminance levels of the video signal when the motion detection output signal indicates that the video signal includes a still image.
    Type: Grant
    Filed: October 20, 2008
    Date of Patent: August 12, 2014
    Assignee: Marvell World Trade Ltd.
    Inventors: Bo Ye, Taesung Kim, Chung Phan Vu
  • Patent number: 8804046
    Abstract: Systems and methods for detecting chroma dropout errors in one or more fields associated with various video frames are provided. Pixels associated with a current field are divided into a set of pixel pairs. Co-occurrences matrices are calculated for previous and subsequent fields. A first pixel pair associated with the current field is selected. First and second set of entries are selected from the co-occurrence matrices corresponding to the previous and subsequent fields. The first pixel pair is searched in the first and second set of entries. An absence of the first pixel pair in the first and second set of entries satisfies a first criterion of chroma dropout error. Other criteria in addition to the first criterion are evaluated to label the first pixel pair as erroneous.
    Type: Grant
    Filed: April 26, 2013
    Date of Patent: August 12, 2014
    Assignee: Interra Systems Inc.
    Inventors: Bhupender Kumar, Shekhar Madnani
  • Publication number: 20140192267
    Abstract: Method and apparatus for reducing random noise in digital video streams are described. In one innovative aspect, the device includes a noise estimator. The device also includes a motion detector configured to determine a motion value indicative of motion between two frames of the video stream, the motion value based at least in part on the noise value. The device further includes a spatial noise reducer configured to filter the image data based at least in part on a blending factor and the noise value. The device also includes a temporal noise reducer configured to filter the video data based on the motion value and the noise value. The device also includes a blender configured to blend the spatial and temporal filtered values to provide a weighted composite filtered output image.
    Type: Application
    Filed: January 4, 2013
    Publication date: July 10, 2014
    Applicant: Qualcomm Incorporated
    Inventors: Mainak Biswas, Vasudev Bhaskaran, Sujith Srinivasan, Shilpi Sahu
  • 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: 8773588
    Abstract: A method for de-interlacing interlaced video includes receiving a first video field and a second video field of an interlaced video frame, generating a first video frame from the first video field and a first synthesized video field, where video data of the first synthesized video field is based exclusively on video data of the first and second video fields, generating a second video frame from the second video field and a second synthesized video field, where video data of the second synthesized video field is based exclusively on the video data of the first and second video fields, and outputting two de-interlaced video frames for every received interlaced video frame. The first (second) synthesized video field is generated by combining image data from the second (first) video field with image data from corresponding lines of an up-scaled first (second) field generated by a scaler.
    Type: Grant
    Filed: February 6, 2014
    Date of Patent: July 8, 2014
    Assignee: Axis AB
    Inventor: Stefan Lundberg
  • Patent number: 8749703
    Abstract: A motion judder cancellation system may convert a source frame rate to an output frame rate. A repetition pattern within a sequence of source frames may be determined. Temporal position for output frames within a sequence may be based on a source frame position and a source frame interval fraction. An image blend mode such as motion vector interpolation may be determined for each output frame. Temporal position and/or image blend mode may be modified. Accordingly, motion judder and/or visible interpolation artifacts may be modified. Output frames may be generated based on the determined or modified image blend mode and/or the determined or modified temporal position of output frames. The output frames may be spaced temporally at even intervals or spacing. Frame rate may be increased and one or more repeated frames within a sequence of frames may be inserted. Generation of output frames may be programmed.
    Type: Grant
    Filed: February 4, 2008
    Date of Patent: June 10, 2014
    Assignee: Broadcom Corporation
    Inventor: Richard Hayden Wyman
  • Patent number: 8750636
    Abstract: Some embodiments allow a video editor to remove unwanted camera motion from a sequence of video images (e.g., video frames). Some embodiments are implemented in a video editing application. Some of these embodiments distinguish unwanted camera motion from the intended underlying motion of a camera (e.g., panning and zooming) and/or motion of objects within the video sequence.
    Type: Grant
    Filed: June 20, 2011
    Date of Patent: June 10, 2014
    Assignee: Apple Inc.
    Inventor: Christophe Souchard
  • Publication number: 20140146235
    Abstract: A video sequence having a plurality of frames is received. A feature in a first frame from the plurality of frames and a first position of the feature in the first frame are detected. The position of the feature in a second frame from the plurality of frames is estimated to determine a second position. A displacement vector between the first position and the second position is also computed. A plurality of content characteristics is determined for the first frame and the second frame. The displacement vector is spatially diffused with a spatial filter over a frame from the plurality of frames to generate a spatially diffused displacement vector field. The spatial filter utilizes the plurality of content characteristics. A temporal filter temporally diffuses over a video volume the spatially diffused displacement vector field to generate a spatiotemporal vector field. The temporal filter utilizes the plurality of content characteristics.
    Type: Application
    Filed: November 27, 2012
    Publication date: May 29, 2014
    Inventors: Aljosa Aleksej Andrej Smolic, Oliver Wang, Manuel Lang
  • Patent number: 8725525
    Abstract: The present invention relates to an endoscope system including: a real time clock; an interface for receiving medical information output from a peripheral device; and a control unit that adjusts clock information added to the received medical information into clock information of the real time clock when the peripheral device adds the clock information to the medical information, and adds clock information of the real time clock at a time of receiving to the received medical information when the peripheral device does not add the clock information to the medical information. According to the invention, even the medical information obtained from the different devices can be reproduced with data from the respective devices synchronized by associating the clock information based on the identical real time clock therewith. Consequently, even after the surgical operation, the contents of treatment performed during the surgical operation can be accurately reproduced.
    Type: Grant
    Filed: April 13, 2005
    Date of Patent: May 13, 2014
    Assignee: Olympus Corporation
    Inventor: Masahide Yamaki
  • Patent number: 8724705
    Abstract: There is provided a method of detecting repeated pictures in a sequence of video picture data, each picture of said video picture data comprising a plurality of macroblocks, the method comprising performing hierarchical motion estimation on the video picture data to provide best motion vectors for each macroblock, best motion vector sum of absolute difference values for each macro block and zero motion vector sum of absolute difference values for each macroblock, wherein the hierarchical motion estimation includes a plurality of levels, and said best motion vectors, best motion vector sum of absolute difference values and zero motion vector sum of absolute difference values for each macroblock are provided for at least a top level, providing a noise threshold value based upon the zero motion vector sum of absolute difference values from the top level of the hierarchical motion estimation, accumulating the best motion vector sum of absolute difference values for macroblocks having best motion vector sum of abs
    Type: Grant
    Filed: June 26, 2008
    Date of Patent: May 13, 2014
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Alois Martin Bock, Satyaghosh Ammu
  • Patent number: 8689275
    Abstract: There is disclosed in aspects of the invention a method of evaluating the profit of a substream of encoded video data, a method of operating servers, a network and an apparatus. In the method, a data portion is identified comprising at least some of the data in the substream being evaluated; comparing a decoded version of the video with the data portion present and a decoded version of the video with the data portion removed and calculating an error metric indicative of the distortion between the two versions; and, calculating a profit for the substream dependent upon the error metric.
    Type: Grant
    Filed: November 2, 2010
    Date of Patent: April 1, 2014
    Assignee: Xyratex Technology Limited
    Inventors: Richard James Haywood, Xiaohong Peng
  • Patent number: 8670071
    Abstract: A method for de-interlacing interlaced video includes receiving a first video field and a second video field, generating a first video frame by inserting the first video field in the first video frame on every second line of the first video frame, and by inserting a first synthesized video field on the lines of the first video frame not populated by the first video field. The video data of the first synthesized video field is based on video data of the first and second video fields. A second video frame is generated by inserting the second video field in the first video frame on every second line of the second video frame and by inserting a second synthesized video field on the lines of the second video frame not populated by the second video field. Two de-interlaced video frames are output for every received interlaced video frame.
    Type: Grant
    Filed: August 14, 2013
    Date of Patent: March 11, 2014
    Assignee: Axis AB
    Inventor: Stefan Lundberg
  • Patent number: 8670649
    Abstract: In one embodiment, a method includes analyzing characteristics of a media program to label portions of the media program with a plurality of labels. Portions of the media program that are determined to be substantially similar are labeled with a same label. The method then analyzes different partitionings of a sequence of the labels to determine partitions for the media program based on a weighting function. A plurality of partitions of the media program are outputted based on comparing the different partitionings of the sequence of labels using the weighting function. The plurality of partitions partition the media program into a plurality of portions and provide points for insertion of information for a service in the media program.
    Type: Grant
    Filed: October 10, 2012
    Date of Patent: March 11, 2014
    Assignee: Hulu, LLC
    Inventors: Ravi Khadiwala, Baptiste Coudurier
  • Patent number: 8670073
    Abstract: A video processing device may compare a pixel or group of pixels of a current video picture to a pixel or group of pixels of a previous video picture. The video processing device may generate a motion vector for the pixel or group of pixels of the current video picture based on the comparison. The video processing device may determine an amount of filtering to be applied to the pixel or group of pixels of the current video picture. The video processing device may adjust the determined amount of filtering to be applied to the pixel or group of pixels based on the generated motion vector and based on a brightness value.
    Type: Grant
    Filed: March 28, 2011
    Date of Patent: March 11, 2014
    Assignee: Broadcom Corporation
    Inventors: Sheng Zhong, Alexander MacInnis
  • Patent number: 8665378
    Abstract: A filter for a video stream is provided. The filter generates a filtered picture according to a current picture and its previous picture. A motion difference calculator accumulates differences between current picture values and previous picture values within a neighborhood of each pixel to provide a corresponding motion difference. A histogram counter performs histogram counting according to motion differences of the pixels. A filter value calculator provides a filter value for each pixel according to operations of the motion difference calculator and the histogram counter. A blender blends the current picture value and the previous picture value of each pixel according to weightings correlated to the filter value, and provides a filtered picture value for each pixel of the filtered picture.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: March 4, 2014
    Assignee: MStar Semiconductor, Inc.
    Inventors: Han-Jen Hsu, Wei-Kuo Lee
  • Patent number: 8655031
    Abstract: Apparatus for identifying video content includes a scene detector to detect a plurality of consecutive scenes in the video content. The video content may include a video program and an advertisement contained within the video program. A signature generator determines a scene change signature for each of the plurality of consecutive scenes. A content identifier provides the plurality of scene change signatures to a comparator that compares the plurality of scene change signatures to a database having a plurality of video content items to identify the video program. The database includes an ordered plurality of previously determined scene change signatures for each item of video content in the database. The content identifier receives an identification of the video content from the comparator. The content identifier may further receive information related to a position of the plurality of scene change signatures within the ordered plurality of previously determined scene change signatures.
    Type: Grant
    Filed: March 27, 2007
    Date of Patent: February 18, 2014
    Assignees: Sony Corporation, Sony Electronics Inc.
    Inventors: Chris Read, Robert Hardacker, Brant Candelore
  • Patent number: 8654258
    Abstract: A method and system for detecting and estimating noise in a video signal. For example, detail edges may be identified in a plurality of pixels, wherein each detail edge has an edge magnitude value. The detail edges in the plurality of pixels may be identified by: determining one or more directionality values for the plurality of pixels by passing the input video signal through at least one directional filter, and identifying the detail edges by assigning edge magnitude values based on whether the one or more directionality values exceed predetermined threshold levels. An edge map of the detail edges may be created, where the edge map is configured to indicate areas of the plurality of pixels to be considered or ignored in estimating the noise in the input video signal. The noise in the input video signal may then be estimated based on the indicated areas of the edge map.
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: February 18, 2014
    Assignee: Marvell International Ltd.
    Inventors: Ankit Ghiya, Shilpi Sahu
  • Patent number: 8654255
    Abstract: Systems and methods for determining insertion points in a first video stream are described. The insertions points being configured for inserting at least one second video into the first video. In accordance with one embodiment, a method for determining the insertion points includes parsing the first video into a plurality of shots. The plurality of shots includes one or more shot boundaries. The method then determines one or more insertion points by balancing a discontinuity metric and an attractiveness metric of each shot boundary.
    Type: Grant
    Filed: September 20, 2007
    Date of Patent: February 18, 2014
    Assignee: Microsoft Corporation
    Inventors: Xian-Sheng Hua, Tao Mei, Linjun Yang, Shipeng Li
  • Patent number: 8625033
    Abstract: Large-scale matching of videos is performed by matching a set of probe videos against a set of reference videos to determine if they are visually and/or aurally similar. The visual and audio fingerprints of all probe videos and reference videos are divided into subfingerprints, which are divided into LSH bands. The LSH bands of the probe videos are sorted in one list, and the LSH bands of the reference videos are sorted in another list. Then, the two sorted lists are linearly scanned for matching LSH bands. The matching LSH bands are sorted by probe video ID, and each probe video ID is searched to find matches between probe videos and reference videos. Further, an incremental matching process identifies matches as groups of new probe videos and/or new reference videos are added, without unnecessary repetition of matching old probe videos against old reference videos.
    Type: Grant
    Filed: February 1, 2010
    Date of Patent: January 7, 2014
    Assignee: Google Inc.
    Inventors: David Marwood, Daniel Keysers, Richard Tucker, Gheorghe Postelnicu, Michele Covell
  • Patent number: 8625026
    Abstract: An apparatus for detecting video film with mix mode is provided. The apparatus includes: a field motion detection unit receiving the field motion value of a current field image or a fed back last field image to detect out at least a motion block; an expanding block unit expanding the motion block into an expanded motion block; a delay unit delaying the received current field image by a predetermined time; an AND processing unit performing an AND processing on the current field image and the last expanded motion block to obtain a confirmed motion block; an inverse telecine (IVTC) unit excluding the confirmed motion block to decide an IVTC mode; a deinterlace unit recovering the continuously input current field image into a video image according to the IVTC mode, wherein the motion block is further recovered with weighted inverse IVTC mode according to a motion intensity value.
    Type: Grant
    Filed: September 24, 2011
    Date of Patent: January 7, 2014
    Assignee: Novatek Microelectronics Corp.
    Inventor: Tung-Hsin Lee
  • Patent number: 8624980
    Abstract: A video apparatus such as a television signal receiver enables a video display that readily indicates the detected degree of a video attribute such as motion and/or other video attribute present in the video display. According to an exemplary embodiment, the video apparatus includes first circuitry operative to receive video data. Second circuitry is operative to enable a video display corresponding to the video data. The video display includes first and second video attributes. The first video attribute varies in proportion to a detected degree of the second video attribute.
    Type: Grant
    Filed: August 10, 2004
    Date of Patent: January 7, 2014
    Assignee: Thomson Licensing
    Inventors: Mark Francis Rumreich, Ronald Thomas Keen
  • Patent number: 8619198
    Abstract: A system includes a computing device that includes a memory for storing content of a sequence of frames, and a frame predictor. The frame predictor determines a difference between content of a first frame and content of a second frame, in which the first and second frames are adjacent in the sequence of frames. The difference between the content of the first and second frames is representative of image changes included in the content of first and second frames. The frame predictor is configured to produce an intermediate frame using at least one of the first and second frames, and the determined difference. The frame predictor is further configured to insert the intermediate frame into the frame sequence.
    Type: Grant
    Filed: April 28, 2009
    Date of Patent: December 31, 2013
    Assignee: Lucasfilm Entertainment Company Ltd.
    Inventor: Dmitry Andreev
  • Patent number: 8619187
    Abstract: Devices, methods, and other embodiments associated with cadence detection are discussed. In one embodiment, an apparatus analyzes a progressive video stream and determines a cadence pattern from the progressive video stream.
    Type: Grant
    Filed: March 29, 2010
    Date of Patent: December 31, 2013
    Assignee: Marvell World Trade Ltd
    Inventors: Sanjay Garg, Nikhil Balram, Mainak Biswas, Vipin Namboodiri
  • Patent number: RE45306
    Abstract: An image processing method and device thereof are provided. The device includes a capture device and a processor. The capture device is adopted for receiving a plurality of frames and comparing at least two adjacent frames to obtain an area selection signal according to a differential value there-between. The processor is connected to the capture device for receiving the area selection signal and to separate each of the adjacent frames into at least two areas. Each of the areas of the adjacent frames is performed by an image processing step respectively, and then the images of the areas are combined to obtain a resulted frame.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: December 30, 2014
    Assignee: Novatek Microelectronics Corp.
    Inventors: Tsui-Chin Chen, Dze-Chang Wang, Hsiao-Ming Huang, Chang-Lun Chen, Ho-lin Wang, Chui-Hsun Chiu