Chrominance-luminance Signal Separation Patents (Class 348/663)
  • Patent number: 10187592
    Abstract: An imaging unit images an object in a state where an infrared projector projects infrared light. The imaging unit generates an imaging signal. A determination unit analyzes the relationship between the amount of environmental visible light and the amount of infrared light. A controller controls the imaging device, according to the relationship between the amount of environmental visible light and the amount of infrared light, analyzed by the determination unit.
    Type: Grant
    Filed: July 19, 2016
    Date of Patent: January 22, 2019
    Assignee: JVC KENWOOD CORPORATION
    Inventors: Takayoshi Sasao, Satoru Sekiguchi
  • Patent number: 10176773
    Abstract: A semiconductor device and a mobile terminal are described herein. In one example, a semiconductor device is provided that includes: a power-source part; an interface part; a logic part; and a driving part. In the semiconductor device, the power-source part includes a power-source-cutoff-detection circuit operable to detect a first state in which supply of an external power source is cut off. The logic part includes: a data-cutoff-detection circuit operable to detect a second state in which supply of stream data accompanied by synchronizing signals from outside the semiconductor device is cut off undesirably; and a control circuit operable to perform control for having the driving part cope with the power source cutoff with the power-source-cutoff-detection circuit detecting the first state or the data-cutoff-detection circuit detecting the second state.
    Type: Grant
    Filed: January 18, 2016
    Date of Patent: January 8, 2019
    Assignee: Synaptics Japan GK
    Inventors: Yoshitaka Iwasaki, Takashi Oyama, Akihito Kumamoto, Satoshi Yamaguchi
  • Patent number: 10121257
    Abstract: System and computer-implemented method for editing a video sequence with temporal consistency. The method includes the steps of: computing a motion field modeling temporal consistency between successive frames; defining an energy functional modeling the desired properties to be enforced on the video sequence; splitting the video sequence into two sets with even frames and odd frames; computing the motion field between consecutive frames on the splitted sequences; recursively performing steps until the sets to be split contain one frame to edit; minimizing the energy functional for each set containing one frame to edit; merging the edited frames and outputting the edited video sequence.
    Type: Grant
    Filed: May 24, 2017
    Date of Patent: November 6, 2018
    Assignee: RATIONAL PIXELS S.L.
    Inventors: Rida Sadek Sadek, Juan Francisco Garamendi, Pablo Arias Martinez
  • Patent number: 9836818
    Abstract: A device and a method for processing image information from an image sensor by means of a mosaic filter having a two-dimensionally periodically repeating two-dimensional filter basis consisting of a plurality of different color components. A two-dimensional local environment having a predetermined number of pixels is constructed from temporarily stored color image data filtered by the mosaic filter, and a low-pass filtering (FC) occurs, wherein a separate low-pass filter mask depending on the current phase position of the local environment with respect to the periodic filter basis is applied to the local environment for each of the color components. Furthermore, all color image data of the local environment are filtered by means of a high-pass filter (FH) having a predetermined filter mask, and the obtained high-pass-filtered color image data are added to corresponding low-pass-filtered color image data.
    Type: Grant
    Filed: May 28, 2015
    Date of Patent: December 5, 2017
    Assignee: Basler AG
    Inventor: Jörg Kunze
  • Patent number: 9807431
    Abstract: A file format structure for use with scalable video coding systems and methods, where a rate share operation box indicates which adaptation operation points for coded media are available in a file. The rate share operation box can include a characterization of the adaptation result for each adaptation operation point. In addition, the rate share operation box can include an identifier that indicates which algorithm was used in generating each adaptation operation point.
    Type: Grant
    Filed: October 17, 2007
    Date of Patent: October 31, 2017
    Assignee: Nokia Technologies Oy
    Inventors: Miska Hannuksela, Ye-Kui Wang
  • Patent number: 9800855
    Abstract: The present technology relates to a reproduction device, a reproduction method, and a recording medium, which are capable of displaying closed captions having a wide dynamic range of luminance at appropriate brightness. HDR closed captions serving as closed captions of a second luminance range that is different from and larger than a first luminance range, tone_mapping_info including HDR information indicating characteristics of luminance of the HDR closed captions, and tone_mapping_info serving as tone mapping definition information used when luminance conversion from the HDR closed captions to STD closed captions serving as closed captions of the first luminance range are recorded on an optical disc. The present technology can be applied to a recording medium on which closed captions are recorded.
    Type: Grant
    Filed: August 7, 2014
    Date of Patent: October 24, 2017
    Assignee: SONY CORPORATION
    Inventor: Kouichi Uchimura
  • Patent number: 9781401
    Abstract: The present technology relates to a reproduction device, a reproduction method, and a recording medium capable of displaying graphics with a broader dynamic range of luminance and appropriate brightness. An optical disc records STN_table associating HDR graphics, which are graphics having a second luminance range different from and broader than a first luminance range, with tone_mapping_info including HDR information indicating a luminance characteristic of the HDR graphics and tone_mapping_info, which is tone mapping definition information used when luminance conversion from the HDR graphics to STD graphics which are graphics having the first luminance range is performed, the HDR graphics, and the tone_mapping_info. The present technology is applicable to a recording medium recording graphics.
    Type: Grant
    Filed: June 12, 2014
    Date of Patent: October 3, 2017
    Assignee: SONY CORPORATION
    Inventors: Kouichi Uchimura, Ryohei Takahashi
  • Patent number: 9706184
    Abstract: The present technology relates to a reproduction device, a reproduction method, and a recording medium capable of displaying graphics with a broader dynamic range of luminance and appropriate brightness. An optical disc records tone_mapping_info including HDR information indicating a luminance feature of HDR graphics which are graphics with a second luminance range different from and broader than a first luminance range, tone_mapping_info which is tone mapping definition information used when luminance conversion from the HDR graphics to STD graphics which are graphics with the first luminance range is performed, and a graphics stream including data of the HDR graphics. The present technology is applicable to a recording medium recording graphics.
    Type: Grant
    Filed: June 12, 2014
    Date of Patent: July 11, 2017
    Assignee: SONY CORPORATION
    Inventors: Kouichi Uchimura, Ryohei Takahashi
  • Patent number: 9554021
    Abstract: An analog video signal received through a cable may be distorted due to the cable and noise during its transmission. Provided is a method and apparatus for determining a level of transmission distortion and compensating for an analog video signal. A video signal reception method and apparatus may determine a distortion level of an analog video signal using an equalizing pattern signal included in a video signal, and may compensate for the analog video signal based on the distortion level.
    Type: Grant
    Filed: February 27, 2015
    Date of Patent: January 24, 2017
    Assignee: NEXTCHIP CO., LTD.
    Inventors: Do Kyun Kim, Il Gwon Kim, Jin Gun Song
  • Patent number: 9432648
    Abstract: A video decoder includes an adaptive comber to generate a combed video image, and the adaptive comber selectively combs using 2D combing, frame combing, and field combing.
    Type: Grant
    Filed: November 15, 2011
    Date of Patent: August 30, 2016
    Assignee: STMicroelectronics International N.V.
    Inventor: Ravi Ananthapurbacche
  • Patent number: 9313401
    Abstract: A method comprising receiving video information from a camera module such that the video information has a first frame rate, determining that at least a part of an object of interest is represented in the video information within a frame rate designation region of the video information, causing configuration of the camera module to capture the video information at a second frame rate, receiving the video information from the camera module such that the video information has the second frame rate, determining that at least a part of the object of interest is unrepresented in the video information within the frame rate designation region of the video information, causing configuration of the camera module to capture the video information at the first frame rate, and receiving the video information from the camera module such that the video information has the first frame rate is disclosed.
    Type: Grant
    Filed: March 4, 2014
    Date of Patent: April 12, 2016
    Assignee: HERE Global B.V.
    Inventors: Sebastian Frey, Vidyut Samanta, Charlie Sutton
  • Patent number: 9030539
    Abstract: This invention is to provide an image processing apparatus, an image processing method, a program, and a display in which both of a secret image and a public image can be efficiently displayed with high picture quality without reducing contrast of the public image. One of output images is a secret image which displays an input secret image as one of input images in a partial area of a screen, all the output images including the secret image have a relationship to become, when a luminance value of each pixel thereof is totaled, an input public image as one of the input images; and during a period in which at least the secret image is being outputted, shutter glasses disposed between a display to which the image signals are inputted and user's eyes are set to a light transmission state.
    Type: Grant
    Filed: June 10, 2014
    Date of Patent: May 12, 2015
    Assignee: NEC Corporation
    Inventors: Daigo Miyasaka, Masao Imai, Fujio Okumura
  • Patent number: 9031377
    Abstract: When reproducing a binocular 3D video, noises with random parallax are reduced by appropriately controlling the intensity of noise reduction. A reproduction apparatus includes: a noise processing circuit for applying noise processing to a video signal of a video content based on a given control signal; and a control section for receiving an output format identification signal which identifies an output format of the video content, and generating the control signal in accordance with the output format identification signal, the control section generating a control signal which causes the noise processing performed in the noise processing circuit to vary depending on whether an output format of the video content is a two-dimensional video or a three-dimensional video.
    Type: Grant
    Filed: March 27, 2012
    Date of Patent: May 12, 2015
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventor: Kazuhiko Kono
  • Patent number: 9030610
    Abstract: High definition media content processing techniques are described in which enhanced media content rendering techniques may be performed to output high definition media content. In an implementation, luma keying may be provided to define clear pixels in a composite output using an optimum set of graphics processing instructions. In another implementation, techniques are described which may provide clear rectangles in a composite output of one or more video streams. Clear rectangles to appear in the composite output are configured by a media playback application. A texture is arrived at to represent a union of each of the clear rectangles and is applied to form the clear rectangles in the composite output. In another implementation, capture techniques are described in which an image to capture is resolved as strips to an intermediate texture and then from the texture to a capture buffer in system memory.
    Type: Grant
    Filed: March 31, 2014
    Date of Patent: May 12, 2015
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Stephen Estrop, Matthew C. Howard
  • Publication number: 20150070589
    Abstract: The invention relates to the art of communications and particularly to a video signal transmission method, apparatus, system and terminal, where the method includes: separating a current raw digital video signal acquired by a video camera core into a luminance signal and a chrominance signal; converting the luminance signal and the chrominance signal into an analog video signal; transmitting the analog video signal to a master control chip board through an electrically-conductive slip ring; and converting the analog video signal back into the current raw digital video signal in the master control chip board. With the video signal transmission method, apparatus, system and terminal according to embodiments of the invention, the integrity of the transmitted video signal can be improved to thereby guarantee the quality of the video signal.
    Type: Application
    Filed: May 16, 2013
    Publication date: March 12, 2015
    Inventors: Jun Yin, Xingming Zhang, Liquan Fu, Jiangming Zhu, Jun Wu, Jian Wu
  • Patent number: 8970787
    Abstract: Disclosed are an image quality improvement device and method. The image quality improvement device includes a filter which separates an input video signal into a luminance signal and a chrominance signal, and a noise reduction unit which detects a motion in the input video signal by using the luminance signal separated by the filter, and thereby performing different filtering operations according to the existence of the motion.
    Type: Grant
    Filed: September 4, 2007
    Date of Patent: March 3, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jae-han Jung, Dong-soo Koo, Sung-hee Kim
  • Patent number: 8917354
    Abstract: A method for detecting motion in video fields of video data, comprises the steps of: calculating texture information for a pixel in the video fields; determining a threshold value as a function of the calculated texture information; calculating a differential value for the pixel; and detecting motion in the video fields as a function of the determined threshold value and the calculated differential value.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: December 23, 2014
    Assignee: Amlogic Co., Ltd.
    Inventors: Dongjian Wang, Xin Hu, Xuyun Chen
  • Patent number: 8848044
    Abstract: This invention is to provide an image processing apparatus, an image processing method, a program, and a display in which both of a secret image and a public image can be efficiently displayed with high picture quality without reducing contrast of the public image. One of output images is a secret image which displays an input secret image as one of input images in a partial area of a screen, all the output images including the secret image have a relationship to become, when a luminance value of each pixel thereof is totaled, an input public image as one of the input images; and during a period in which at least the secret image is being outputted, shutter glasses disposed between a display to which the image signals are inputted and user's eyes are set to a light transmission state.
    Type: Grant
    Filed: January 22, 2008
    Date of Patent: September 30, 2014
    Assignee: Nec Corporation
    Inventors: Daigo Miyasaka, Masao Imai, Fujio Okumura
  • 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: 8817194
    Abstract: In an interlaced image processing method for processing fields generated by interlacing and including a plurality of rows of scan signals, the method includes: performing horizontal line detection on a current field so as to determine which of the rows of the scan signals is a horizontal line; according to the horizontal line detection result of the current field and a horizontal line detection result of a previous field, adjusting position of the horizontal line in the current field so as to approach position of a corresponding horizontal line in the previous field; and according to the result of position adjustment, re-sampling the current field. An interlaced image processing apparatus for implementing the method is also disclosed.
    Type: Grant
    Filed: February 8, 2008
    Date of Patent: August 26, 2014
    Assignee: Realtek Semiconductor Corp.
    Inventors: Chi-Feng Wang, Chun-Hsing Hsieh
  • Patent number: 8754989
    Abstract: A signal processing apparatus and a control method thereof are provided. The signal processing apparatus includes: a comb filter which divides a luminance signal and a chrominance signal from an input video signal and outputs a luminance level of the luminance signal and a color level of the chrominance signal; an output unit which outputs one of the luminance level output by the comb filter and a blurred luminance level obtained by blurring the luminance level; and a controller which determines whether the luminance level output by the comb filter includes the color level, and controls the output unit to output the blurred luminance level if the color level is included in the luminance level, and output the luminance level if the color level is not included therein.
    Type: Grant
    Filed: December 21, 2007
    Date of Patent: June 17, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Sang-min Hong
  • Patent number: 8743950
    Abstract: A method is provided for filtering a scalable video stream, organized in the form of data unit blocks, each of which comprises a base data unit and a set of data units distributed according to two types of enhancement data, corresponding respectively to time and/or space and/or quality characteristics and making it possible to define several quality levels. The method defines at least two distinct filtering profiles, or paths of each block data units, wherein each path defines a row of successive foldover positions and each foldover position uses at least by one less data units than a previous position, and selects one of the paths according to a predetermined criterion, taking into account the type of content of the stream and/or at least one information item representing the capacities of a terminal receiving the stream.
    Type: Grant
    Filed: July 18, 2006
    Date of Patent: June 3, 2014
    Assignee: France Telecom
    Inventors: Isabelle Amonou, Stephane Pateux, Gerard Babonneau
  • Patent number: 8717435
    Abstract: A video monitoring device may include an input for a video input signal, a display, and a video processor coupled to the input and the display. The video processor may be for obtaining from the video input signal at least one parametric signal defining a curve, calculating derivative values for the curve, and displaying pixel intensity values on the display based upon the derivative values so that more rapidly changing portions of the curve appear dimmer and more slowly changing portions of the curve appear brighter.
    Type: Grant
    Filed: April 9, 2008
    Date of Patent: May 6, 2014
    Assignee: HBC Solutions, Inc.
    Inventor: Chad Faragher
  • Patent number: 8698960
    Abstract: A decoder and a method for separating luminance and chrominance information from a target pixel in a composite video signal are provided. The decoder comprises a delay module, a filter module, a weighting factor generator, and a separator. The delay module is configured to delay a plurality of horizontal lines of the composite video signal to output a plurality of pixels including the target pixel. The filter module is coupled to the delay module and configured to filter the composite video signal in a horizontal direction and a vertical direction to generate a plurality of frequency components. The weighting factor generator is configured to generate a first weighting factor of the target pixel according to the horizontal direction and a second weighting factor of the target pixel according to the vertical direction. The separator is configured to separate luminance information from the target pixel in accordance with the frequency components, the first weighting factor, and the second weighting factor.
    Type: Grant
    Filed: March 18, 2008
    Date of Patent: April 15, 2014
    Assignee: Mediatek Inc.
    Inventor: I-Hong Chen
  • Patent number: 8611820
    Abstract: Techniques for designing a communications unit including a signal separation module for energy harvesting. In an exemplary aspect, the signal separation module includes first and second quadrature hybrids coupled by band-pass filters (BPF's). Incoming signals within the pass-band of the BPF's are directed through the quadrature hybrids and through the BPF's, and emerge as a desired pass-band signal to be processed by an RX processing module. Incoming signals lying outside the pass-band of the BPF's are reflected from the BPF's back to the first quadrature hybrid, and output as a non-pass-band signal to be processed by an energy harvesting module. In a further exemplary aspect, the signal separation module resides in a detachable module coupleable to a wireless communications device, and a signal transmitted by the wireless communications device is coupled to the signal separation module for energy harvesting.
    Type: Grant
    Filed: September 22, 2009
    Date of Patent: December 17, 2013
    Assignee: QUALCOMM Incorporated
    Inventor: Robert P. Gilmore
  • Patent number: 8548066
    Abstract: A multi-directional comb filtering in a digital video decoder is provided. Some embodiments of the present invention provide for a method of filtering, using a multi-directional comb filter, pixel data from a sequence of fields of pixel data, wherein the fields of pixel data comprise a previous field, a current field and a next field, and wherein each of said fields includes a previous line, a current line, a next line.
    Type: Grant
    Filed: January 25, 2013
    Date of Patent: October 1, 2013
    Assignee: WZ Technology Inc.
    Inventors: Sheng De Jang, Hsiu Min Wong, Zu Jun Liang, Qing Yang
  • Publication number: 20130250178
    Abstract: Systems and methods are disclosed herein for a motion detection system for video signal processing that includes a luminance motion detector, a chroma motion detector, and a smoothness detector. These systems and methods may also include a phase motion detector, a baseband YC separation circuitry for video signal processing, a chip for video signal processing, and a video signal processing system used in an electronic article.
    Type: Application
    Filed: March 12, 2013
    Publication date: September 26, 2013
    Applicant: STMICROELECTRONICS ASIA PACIFIC PTE., LTD.
    Inventor: Patricia Chiang Wei Yin
  • Patent number: 8514930
    Abstract: A phase detection apparatus includes: a motion detector, for determining whether an image data corresponds to a still image data; an image characteristic detector, coupled to the motion detector, for detecting a characteristic image data having cross color phenomenon when the image data corresponds to a still image data; a phase testing module, coupled to the image characteristic detector, for processing the characteristic image data according to a plurality of phases to obtain a plurality of testing results; and a phase determining module, for selecting a phase from the plurality of phases according to the plurality of testing results.
    Type: Grant
    Filed: May 30, 2007
    Date of Patent: August 20, 2013
    Assignee: Realtek Semiconductor Corp.
    Inventors: Bing-Jhe Chen, Po-Wei Chao
  • Patent number: 8508668
    Abstract: One or more processors and/or circuits receive a composite video signal and determine a current pixel and a plurality of reference pixels. A plurality of weighting factors corresponding to the reference pixels are determined utilizing non-local means. Chroma components and/or luma components for the current pixel are determined based on weighted least squares utilizing the reference pixels, the weighting factors and information known about the composite signal, for example, sub carrier information. The composite video signal may comprise baseband Y and modulated Cb and/or Cr components. Weighting factors are determined by comparing a block of pixels about the current pixel with a block of pixels about the corresponding reference pixels in a current, previous or future frame. A set of equations comprising reference pixel data, a set of weighting factors and/or the known information may be solved to the determine signal components.
    Type: Grant
    Filed: September 30, 2009
    Date of Patent: August 13, 2013
    Assignee: Broadcom Corporation
    Inventors: Wei Luo, Dong-Jian Wang, Xavier Lacarelle
  • Patent number: 8508672
    Abstract: A system for, and method of, improving video image sharpness and a continuous-light-emitting video display system employing the system or the method. In one embodiment, the system for improving video image sharpness includes: (1) a sub-frame generator configured to receive a frame of a video image and generate plural sub-frames therefrom and (2) a spatial filter, associated with the sub-frame generator and configured to cause the plural sub-frames to be spatially filtered with respect to one another based on a display sequence thereof.
    Type: Grant
    Filed: December 28, 2006
    Date of Patent: August 13, 2013
    Assignee: Texas Instruments Incorporated
    Inventor: Andrew I. Russell
  • Patent number: 8421926
    Abstract: A device for outputting a luminance signal is disclosed. The device includes a chrominance judgment unit, a field observation unit, and an output unit. The chrominance judgment unit and the field observation unit are used to determine whether a 3D luminance signal is affected. The output unit outputs a resultant luminance signal according to the determination results of the chrominance judgment unit and the field observation unit. According to the present invention, the resultant luminance signal can be accurately obtained by judging characteristics of the 3D luminance signal and a 3D chrominance signal even if a 3D comb filter is wrongly used in a motion condition.
    Type: Grant
    Filed: November 4, 2011
    Date of Patent: April 16, 2013
    Assignee: Silicon Integrated Systems Corp.
    Inventors: Albert Hua Tai, Feng Chi Wei, Heng Yi Liu
  • Patent number: 8411207
    Abstract: A device for outputting a luminance signal and a method thereof are disclosed. The device includes an image smoothing unit, a band pass filter unit, and a summing unit. The image smoothing unit receives a 2D luminance signal and decreases a signal intensity of a component of the 2D luminance signal within a frequency range with respect to a carrier frequency of a chrominance component. The band pass filter unit passes the component of the 2D luminance signal within the frequency range with respect to the carrier frequency. The summing unit sums the output of the image smoothing unit and the output of the band pass filter unit to generate a resultant luminance signal. The present invention is capable of avoiding the occurrence of saw-tooth or sparkling situation caused by inharmonious switching between a 1D comb filter and a 2D comb filter.
    Type: Grant
    Filed: December 28, 2011
    Date of Patent: April 2, 2013
    Assignee: Silicon Integrated Systems Corp.
    Inventors: Albert Hua Tai, Feng Chi Wei, Heng Yi Liu
  • Patent number: 8405776
    Abstract: A state detector of a video device and a state detection method thereof are provided. The state detector includes a first chroma detector, a second chroma detector, and a controller. The first chroma detector and the second chroma detector operate in a first state among a plurality of states. When the second chroma detector is not capable of processing an input signal normally, the controller controls the second chroma detector to switch between the states until the second chroma detector operates in a second state to process the input signal normally, and the first chroma detector is set to operating in the second state. As a result, the quality of a displayed image is improved.
    Type: Grant
    Filed: December 3, 2008
    Date of Patent: March 26, 2013
    Assignee: Novatek Microelectronics Corp.
    Inventor: Hsin-I Lin
  • Patent number: 8384765
    Abstract: A transmitter is provided. When a three-dimensional image signal including a two-dimensional image signal and depth information of the two-dimensional image signal is transmitted to a receiver using a two signal transmission lines, the three-dimensional image signal including the two-dimensional image signal and the depth information of the two-dimensional image signal is input. Also, signal separation of the two-dimensional image signal is performed. In addition, one signal-separated part of the two-dimensional image signal is transmitted to a first signal transmission line and the other signal-separated part of the two-dimensional image signal is combined with the depth information and then transmitted to a second signal transmission line.
    Type: Grant
    Filed: November 4, 2009
    Date of Patent: February 26, 2013
    Assignee: Sony Corporation
    Inventors: Shuichi Takahashi, Isao Ohashi, Takuya Ooi, Kazunari Yoshifuji
  • Patent number: 8363734
    Abstract: A multi-directional comb filtering in a digital video decoder is provided.
    Type: Grant
    Filed: January 12, 2009
    Date of Patent: January 29, 2013
    Assignee: Huaya Microelectronics
    Inventors: Sheng De Jang, Hsiu Min Wong, Zu Jun Liang, Qing Yang
  • Patent number: 8358338
    Abstract: An image data processing includes: obtaining first image data; outputting the first image data to the image display devices; obtaining an attention area composed of one or more arbitrarily specified pixels from the first image outputted to the image display devices ; displaying a color chart whose hue and chroma are gradually changed toward around the color corresponding to the image data of the attention area; obtaining arbitrarily selected color information from the displayed color chart; obtaining a plurality of combinations of the attention area and the color information corresponding to the attention area and calculating a color parameter on the basis of the obtained plurality of combinations; converting the color of the obtained image data on the basis of the color parameter; and outputting the image data whose color is converted, to the image display devices as a second image.
    Type: Grant
    Filed: June 10, 2009
    Date of Patent: January 22, 2013
    Assignee: Olympus Corporation
    Inventor: Shinichiro Aizaki
  • Patent number: 8330869
    Abstract: A parameter for determining a chrominance correction curve for use in correcting the chrominance component of each pixel is determined from one or more parameters for determining a luminance correction curve for use in correcting luminance applied to the entirety of one frame of motion picture data. The chrominance component of each pixel is corrected using the chrominance correction curve.
    Type: Grant
    Filed: June 16, 2008
    Date of Patent: December 11, 2012
    Assignee: Fujitsu Limited
    Inventors: Kimitaka Murashita, Masayoshi Shimizu
  • Patent number: 8306351
    Abstract: An apparatus and a method for filtering noise in an image signal are provided. The apparatus includes an analog-to-digital converter (ADC), a first filter, and a second filter. The ADC receives the image signal and converts the image signal into a digital signal. The first filter receives the digital signal and filters a first noise portion of the digital signal to generate a first signal. The second filter coupled to the first filter receives the first signal and filters a second noise portion of the first signal, wherein the first noise portion is a sampled-based impulse noise, and the second noise portion is a line-based impulse noise.
    Type: Grant
    Filed: March 12, 2009
    Date of Patent: November 6, 2012
    Assignee: Novatek Microelectronics Corp.
    Inventor: Hsin-I Lin
  • Patent number: 8285134
    Abstract: A wide dynamic range (WDR) hardware apparatus and a photographing apparatus including the WDR hardware apparatus are provided where the WDR unit applies weight coefficients to a luminance signal of a small size image having a first exposure time and a luminance signal of a small size image having a second exposure time longer than the first exposure time. The system combines the luminance signals applied weight coefficients, applies weight coefficients to a luminance signal of an original size image having the first exposure time and a luminance signal of an original size image having the second exposure time, and combines the luminance signals applied weight coefficients.
    Type: Grant
    Filed: January 31, 2011
    Date of Patent: October 9, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Soo-kyung Joo
  • Patent number: 8285036
    Abstract: A method is provided for extracting an edge included in a color image formed of first pixels expressed by color component values of three colors. The method includes: calculating a lightness value of the first pixel based on the color component values; determining which one of the low, medium, and high lightness regions, the calculate lightness value belongs to; generating an extraction image formed of second pixels corresponding to the first pixels; and extracting an edge based on the pixel value of the extraction image thus generated. For a first pixel whose lightness value belongs to the medium lightness region and the low or high lightness region, a pixel value is calculated from the color component values of three colors, and from the color component values excluding at least one color, respectively. Then, the edge is extracted based on the calculated pixel value of the extraction image.
    Type: Grant
    Filed: September 17, 2010
    Date of Patent: October 9, 2012
    Assignee: Konica Minolta Business Technologies, Inc.
    Inventor: Naoko Hiramatsu
  • Patent number: 8279350
    Abstract: A method of composite decoding in which the input signal is converted into the frequency domain, and the symmetry of frequency components with respect to the subcarrier frequency is compared. The comparison is varied in dependence upon the frequency being processed. In this way, the separation can be adapted to suit known characteristics of different portions on the input spectrum. This is particularly useful for processing NTSC signals. The allocation of a particular component to chrominance may be biased in dependence upon a measure of the luminance information of the composite signal at a corresponding spatial frequency.
    Type: Grant
    Filed: November 30, 2010
    Date of Patent: October 2, 2012
    Assignee: Snell Limited
    Inventor: Martin Weston
  • Patent number: 8279354
    Abstract: A video signal processing apparatus may include a frame memory and a separator and deinterlacer circuit. The frame memory may store an interlaced video signal. The separator and deinterlacer circuit may execute operations of separating and deinterlacing the interlaced video signal stored in the frame memory. The apparatus may output a sequential video signal. A data processing system may include the video signal processing apparatus. A method for processing video signals may include storing an interlaced video signal in a frame memory and executing operations of separating and deinterlacing the interlaced video signal stored in the frame memory. The method may also include outputting a sequential video signal.
    Type: Grant
    Filed: February 1, 2007
    Date of Patent: October 2, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyung-jun Lim, Sung-cheol Park, Jae-hong Park
  • Patent number: 8279347
    Abstract: A system of edge direction detection for comb filter includes a buffer, first and second filters, first and second oblique detectors, and a comparator. The buffer receives and stores a composite signal. The first filter performs filtering operation on the composite signal to produce a first filter signal. The second filter performs filtering operation on the composite signal to produce a second filter signal. The first oblique detector detects an oblique in the first filter signal to produce a first oblique indication signal and a first oblique direction signal and output a first minimum oblique difference. The second oblique detector detects an oblique in the second filter signal to produce a second oblique indication signal and a second oblique direction signal and output a second minimum oblique difference. The comparator compares the first and second oblique indication signals and the first and second oblique direction signals to produce edge information.
    Type: Grant
    Filed: May 12, 2009
    Date of Patent: October 2, 2012
    Assignee: Sunplus Technology Co., Ltd.
    Inventor: Tsung Han Chiang
  • Patent number: 8274607
    Abstract: An image processing apparatus is provided, including: a first image processing unit which converts an input image signal into a brightness signal and a chromaticity signal; and a second image processing unit which adjusts a bandwidth used to filter the chromaticity signal to correspond to a noise level of the image signal, and filters the chromaticity signal with the adjusted bandwidth to extract a chrominance signal.
    Type: Grant
    Filed: July 30, 2009
    Date of Patent: September 25, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Hye-joung Park
  • Patent number: 8265411
    Abstract: An image recording apparatus includes an imaging section which images a subject to obtain imaging data. An image quality information acquiring section acquires a plurality of sets of information concerning image quality. An image quality information converting section converts the plurality of sets of information concerning the image quality acquired in the image quality information acquiring section into image processing parameters used in image processing of the imaging data. An image processing section performs image processing with respect to the imaging data based on the image processing parameters converted by the image quality information converting section. A recording section records in a recording medium the imaging data subjected to image processing in the image processing section, or records in the recording medium the imaging data which is not yet subjected to image processing in the image processing section and the plurality of sets of information concerning the image quality.
    Type: Grant
    Filed: August 23, 2011
    Date of Patent: September 11, 2012
    Assignee: Olympus Corporation
    Inventor: Tetsuya Toyoda
  • Patent number: 8253855
    Abstract: A method of automatic luminance-chrominance delay compensation is disclosed. The method generally includes the steps of (A) generating an intermediate signal by processing a video signal such as to enhance a plurality of edges in a picture within the video signal, the picture having a luminance component and a chrominance component temporally separated from each other by an actual delay, (B) identifying an estimated delay between the luminance component and the chrominance component by correlating the luminance component in the intermediate signal to the chrominance component in the intermediate signal at a plurality of relative delays and (C) compensating for the actual delay by delaying one of either (i) the luminance component and (ii) the chrominance component by the estimated delay.
    Type: Grant
    Filed: March 18, 2008
    Date of Patent: August 28, 2012
    Assignee: LSI Corporation
    Inventor: Daniel B. Ogilvie
  • Patent number: 8243202
    Abstract: Aspects of a method and system for a generalized multi-dimensional filter device are provided. A corresponding luma component and a corresponding chroma component of a sample of a composite video baseband signal for each of a plurality of filtering modes may be determined. A similarity level of the sample corresponding to each of the plurality of filtering modes may be determined. A corresponding coefficient for each of the plurality of filtering modes may be generated based on the determined similarity levels. A luma component and a chroma component of the sample of the composite video baseband signal may be generated based on the generated corresponding coefficients and the determined corresponding luma components and the determined corresponding chroma components for each of the plurality of filtering modes.
    Type: Grant
    Filed: September 30, 2009
    Date of Patent: August 14, 2012
    Assignee: Broadcom Corporation
    Inventors: Qiang Zhu, Wei Luo, Dongjian Wang, Chuan Chen, XiaoHong Di, Xavier Lacarelle, Wu Huang
  • Patent number: 8237866
    Abstract: A system, apparatus and method are disclosed for separating a current frame of a composite video signal into a luminance signal and a chroma signal. A relative chroma correlation value is generated using a plurality of lines of the current frame. A weighted sum of inter-line pixel differences of the current frame is generated using the relative chroma correlation value. A frame difference signal is generated by subtracting a previous frame of the composite video signal from the current frame. A detected motion signal is generated that corresponds to motion detected in the current frame. The weighted sum of inter-line pixel differences, the frame difference signal, and the detected motion signal are combined to generate the chroma signal. The chroma signal is subtracted from the current frame to generate the luminance signal.
    Type: Grant
    Filed: December 2, 2009
    Date of Patent: August 7, 2012
    Assignee: STMicroelectronics, Inc.
    Inventor: Patricia Chiang Wei Yin
  • Patent number: 8237865
    Abstract: A method of processing image data includes generating image data including luminance and chrominance data representing a selected object, separating the luminance and chrominance data, storing the separated luminance and chrominance data in corresponding separate spaces in memory, and separately compressing the stored luminance and chrominance data.
    Type: Grant
    Filed: December 14, 2007
    Date of Patent: August 7, 2012
    Inventor: Emanuele Salvucci
  • Patent number: 8218086
    Abstract: There is provided a method of pre-processing video data to detect flashes, comprising calculating a normalized difference index value for a Luminance [Y] component of the video data, calculating a normalized difference index value for Chrominance [U and V] components of the video data, calculating a normalized luminance [Y] mean gradient index for the video data, and providing an indication that a flash has been detected when all the following conditions are satisfied: the normalized difference index value for the Luminance [Y] component is greater than a first predetermined threshold (TY); the normalized difference index value for the Chrominance [U and V] components is less than a second predetermined threshold (TC); and a difference between the normalized difference index value for the Chrominance [U and V] components and the normalized luminance [Y] mean gradient index is less than or equal to a third pre-determined threshold (TF).
    Type: Grant
    Filed: December 11, 2007
    Date of Patent: July 10, 2012
    Assignee: Ericsson Television Inc.
    Inventor: Zhicheng Lancelot Wang