Patents by Inventor Yuki Maruyama

Yuki Maruyama has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8654839
    Abstract: Video signal coding apparatus includes a quantization unit which quantizes a luminance signal of each of a first picture and a second picture coded after the first picture, and quantizes a chrominance signal of each of the first picture and the second picture. A code amount obtainment unit obtains a luminance code amount and a chrominance code amount of each of the first picture and the second picture; and a rate calculation unit calculates a rate of the chrominance code amount with respect to the luminance code amount for each of the first picture and the second picture. A rate control unit changes a coefficient value of at least one of the first matrix and the second matrix used in quantizing the second picture, before the quantization unit quantizes the second picture, so that the rate for the second picture becomes smaller than the rate for the first picture.
    Type: Grant
    Filed: February 4, 2010
    Date of Patent: February 18, 2014
    Assignee: Panasonic Corporation
    Inventors: Hiroshi Arakawa, Yuki Maruyama, Hideyuki Ohgose, Kiyofumi Abe
  • Publication number: 20140044186
    Abstract: An image coding device which codes input image data includes a coding flag generation unit which determines whether or not the input image data is image data included in data of a moving picture showing a motion of a predetermined motion amount or greater, and generates coding flag information which indicates a result of the determination. A coding method determination unit determines a coding method in which the input image data references coded image data that the coded image data indicates is the input image data included in the data of the moving picture that is closer to the input image data. An image coding unit compression-codes the input image data using the coding method determined by the coding method determination unit.
    Type: Application
    Filed: October 16, 2013
    Publication date: February 13, 2014
    Applicant: Panasonic Corporation
    Inventors: Yuki MARUYAMA, Tatsuro JURI
  • Publication number: 20130258053
    Abstract: A provided three-dimensional video encoding apparatus adaptively switches a method of setting a reference picture according to a parallax between right and left sides, thereby improving encoding efficiency. A parallax acquisition unit 101 calculates parallax information on a first viewpoint video signal and a second viewpoint video signal according to a parallax matching method or the like. A reference picture setting unit 102 determines, from the parallax information, reference picture setting information on the selection of the reference picture in the encoding of a picture to be encoded, and the allocation of a reference index to the reference picture. An encoding unit 103 compresses and encodes the image data of the picture to be encoded, according to reference picture selection information.
    Type: Application
    Filed: March 12, 2013
    Publication date: October 3, 2013
    Inventors: Yuki MARUYAMA, Hideyuki OHGOSE, Yuki KOBAYASHI, Hiroshi ARAKAWA, Kiyofumi ABE
  • Publication number: 20130258061
    Abstract: A stereoscopic image inspection device configured to determine that a stereoscopic image or part of the stereoscopic image is horizontally reversed is provided. A depth obtaining unit obtains depth information of the stereoscopic image. An occlusion detection unit detects an occlusion area of the stereoscopic image. A determination unit evaluates image continuity between the occlusion area and adjacent areas adjacent to the occlusion area, and identifies a first area to which the occlusion area belongs among the adjacent areas based on the evaluated image continuity, and determines whether or not the stereoscopic image has a depth contradiction based on a depth position of the first area included in the depth information.
    Type: Application
    Filed: May 29, 2013
    Publication date: October 3, 2013
    Inventors: Kentaro Matsumoto, Yuki KOBAYASHI, Yuki MARUYAMA, Yasunobu OGURA
  • Patent number: 8514935
    Abstract: An image coding apparatus including an accumulating unit which accumulates a reference image, a predicted image generating unit which generates a predicted image of the current image to be coded by performing motion compensation with weighted prediction or motion compensation without the weighted prediction, and a coding unit which codes a difference between the predicted image generated by the predicted image generating unit and the current image to be coded. The image coding apparatus also includes a determining unit which determines whether or not the current image to be coded is included in a picture group which is a group of successive pictures and indicates motion equal to or larger than a predetermined amount of motion and which generates the predicted image by performing the motion compensation with the weighted prediction when it is determined that the current image to be coded is not included in the picture group.
    Type: Grant
    Filed: July 28, 2009
    Date of Patent: August 20, 2013
    Assignee: Panasonic Corporation
    Inventor: Yuki Maruyama
  • Publication number: 20130083382
    Abstract: An actuator includes a drive beam; a lower electrode formed on the drive beam; a piezoelectric element provided on the lower electrode; an upper electrode provided on the piezoelectric element; an upper wiring connecting the upper electrode and a wiring for supplying a voltage to the upper electrode; and an insulating part providing electrical insulation between the upper electrode and the lower electrode and formed under the upper wiring such that it covers an end of the lower electrode. The insulating part includes insulating extension parts extended on opposite sides of the upper wiring in a width direction of the upper wiring.
    Type: Application
    Filed: September 24, 2012
    Publication date: April 4, 2013
    Inventors: Hisamichi SEKINE, Hisanori AGA, Yuki MARUYAMA
  • Patent number: 8396125
    Abstract: A picture coding apparatus includes a picture feature amount extracting unit which extracts respective feature amounts of the current picture and a picture having a specific relationship with the current picture; a correlation degree calculating unit which calculates, based on the feature amount extracted by the feature amount extracting unit, a correlation degree indicating a degree of image similarity between the current picture and the picture having a specific relationship with the current picture; a picture type determining unit which determines, depending on the calculated correlation degree, a picture type for the current picture, from two picture types on which different inter-picture prediction is performed; and a coding unit which codes the current picture according to the determined picture type.
    Type: Grant
    Filed: October 16, 2008
    Date of Patent: March 12, 2013
    Assignee: Panasonic Corporation
    Inventors: Koji Arimura, Yuki Maruyama, Hideyuki Ohgose
  • Patent number: 8254451
    Abstract: An image coding apparatus includes a reference index assignment unit that assigns reference indices to reference pictures which can be referred to by a current picture to be coded, each of the reference indices having a different value and being assigned to a corresponding one of the plural reference pictures. An image coding unit performs field-coding on the current picture to be coded, by referring to the reference pictures indicated by the reference indices assigned by the reference index assignment unit, and codes the reference indices. The reference index assignment unit assigns, to one of two reference pictures included in the plural reference pictures, a reference index having a value smaller than a value of a reference index to be assigned to the other reference picture. One of the two reference pictures is temporally closer to the current picture to be coded.
    Type: Grant
    Filed: August 4, 2009
    Date of Patent: August 28, 2012
    Assignee: Panasonic Corporation
    Inventor: Yuki Maruyama
  • Publication number: 20120200668
    Abstract: A video reproducing apparatus includes: a decoding unit configured to decode the coded images for stereoscopic viewing, and output the decoded images for stereoscopic viewing and coding-related information which is used in the coding of the images for stereoscopic viewing and is related to compression distortion which occurs due to the coding; a quality determining unit configured to determine whether the decoded images for stereoscopic viewing should be output as a two-dimensional video or as a three-dimensional video, based on the coding-related information related to the compression distortion; and a screen generating unit configured to output the decoded images for stereoscopic viewing as the two-dimensional video or the three-dimensional video, according to the determination by the quality determining unit.
    Type: Application
    Filed: February 3, 2012
    Publication date: August 9, 2012
    Inventors: Yuki MARUYAMA, Kazuhito Kimura
  • Publication number: 20120194643
    Abstract: A video coding device includes a three-dimensional video detection unit that determines whether an input video is a three-dimensional video or a two-dimensional video, a coding parameter setting unit that sets an upper limit value of a quantization width to be used in coding on the basis of the result of the determination by the three-dimensional video detection unit, and a coding unit that codes the input video at a quantization width not more than the upper limit value set in the coding parameter setting unit, wherein when the three-dimensional video detection unit determines that the input video is the three-dimensional video, the coding parameter setting unit sets the upper limit value of the quantization width for the three-dimensional video at a different value from the upper limit value of the quantization width for two-dimensional video.
    Type: Application
    Filed: January 26, 2012
    Publication date: August 2, 2012
    Inventor: Yuki Maruyama
  • Publication number: 20120182401
    Abstract: A 3D video processing device includes a disparity map generator which compares a first-perspective image from a first perspective with a second-perspective image from a second perspective, which are two images forming stereoscopic video, thereby generates a disparity map which represents disparity of the second-perspective image with respect to the first-perspective image, a first new image generator which rotates the first-perspective image based on rotation angle information which represents rotation statuses of the first- and the second-perspective images, thereby generates a new first-perspective image, and a second new image generator which generates a new second-perspective image, which is paired with the new first-perspective image to form stereoscopic video, based on the first-perspective image and on the disparity map.
    Type: Application
    Filed: February 3, 2012
    Publication date: July 19, 2012
    Inventors: Yuki Kobayashi, Yuki Maruyama, Kentaro Matsumoto
  • Publication number: 20120140036
    Abstract: Provided is a stereo image coding apparatus (100) including: a motion vector estimating unit (102) that calculates disparity information (102g) on a disparity between two image signals (101iX and 101iY) captured at two positions; a quantization parameter determining unit (103) that determines a quantization parameter (104p) based on the calculated disparity information so that the disparity in a portion of the three-dimensional image has a larger code amount as the disparity in the portion is larger; and an image coding unit (104) that codes the determined quantization parameter by quantization to generate a coded stream (100o) of a three-dimensional image signal.
    Type: Application
    Filed: December 21, 2010
    Publication date: June 7, 2012
    Inventor: Yuki Maruyama
  • Publication number: 20120107850
    Abstract: A reagent including a combination of a polyanionic compound and a bivalent cationic compound contains one substance selected from the group consisting of succinic acid, gluconic acid, alanine, glycine, valine, histidine, maltitol, and mannitol or at least one compound of the substance. A dry state of the reagent and deliquescence can be improved.
    Type: Application
    Filed: July 1, 2010
    Publication date: May 3, 2012
    Inventors: Yuki Maruyama, Kenji Ishibashi, Hiroshi Saiki, Kenji Watanabe, Kouzou Tagashira
  • Patent number: 8135060
    Abstract: A picture coding apparatus, optimizing a data amount of coded picture data without entailing an increase in circuit size and/or power consumption, includes a picture input unit obtaining a moving picture signal Vin. Further, the picture coding apparatus includes a buffer, includes a lead detecting unit detecting a lead portion from the moving picture represented by the moving picture signal Vin, includes a coding unit coding the moving picture signal Vin in the lead portion detected by the lead detecting unit, according to a coding condition for temporary coding, and includes a coding condition generating unit generating a coding condition for actual coding, based on the result of the coding by the coding unit and the coding condition for temporary coding. Additionally, coding unit codes the moving picture signal Vin representing the moving picture including the aforementioned lead portion, according to the coding condition for actual coding.
    Type: Grant
    Filed: November 29, 2007
    Date of Patent: March 13, 2012
    Assignee: Panasonic Corporation
    Inventors: Tatsuro Juri, Hiroshi Arakawa, Katsuo Saigo, Hideyuki Ohgose, Koji Arimura, Kei Tasaka, Yuki Maruyama
  • Publication number: 20120002022
    Abstract: An image coding apparatus records stereoscopic video partially as 2D video so as to enable display to be performed while seamlessly switching between 3D video and 2D video, and includes: a control unit that sets one of a 2D coding mode and a 3D coding mode which are modes of coding the stereoscopic video so that, when displayed in 3D, the stereoscopic video is displayed as 2D video and 3D video respectively; and a coding unit that, in the case where the control unit switches from the 3D coding mode to the 2D coding mode, codes the to stereoscopic video according to a 3D coding standard in the 3D coding mode, and codes the stereoscopic video according to the 3D coding standard using a coding condition in the 2D coding mode, the coding condition being a condition for causing the stereoscopic video to be viewed as the 2D video when displayed.
    Type: Application
    Filed: July 1, 2011
    Publication date: January 5, 2012
    Inventors: Hideyuki Ohgose, Katsuki Urano, Kiyofumi Abe, Hiroshi Arakawa, Yuki Maruyama, Yuki Kobayashi
  • Publication number: 20120002723
    Abstract: A stereo video coding apparatus which codes, out of a first viewpoint video and second viewpoint video, at least a second image included in the second viewpoint video, and includes: a judgment unit and a selection unit which output one of a prediction image generated by applying motion compensation to the second viewpoint video and a prediction image generated by applying disparity compensation to the first viewpoint video, by selectively switching between the prediction images; a subtractor; an orthogonal transform unit; a quantization unit; and a control unit which determines a quantization step size to be used by the quantization unit. The control unit determines a quantization step size to be applied to the second image to be a value smaller than a quantization step size to be applied to a first image that is paired with the second image, when the judgment unit selects the prediction image generated by applying disparity compensation.
    Type: Application
    Filed: June 29, 2011
    Publication date: January 5, 2012
    Inventors: Hiroshi ARAKAWA, Hideyuki OHGOSE, Yuki KOBAYASHI, Kiyofumi ABE, Katsuki URANO, Yuki MARUYAMA
  • Publication number: 20110292998
    Abstract: To provide an image coding apparatus and an image coding method that allow selecting, according to an image in a macroblock to be coded, a most appropriate intra prediction mode for controlling the amount of generated code. The image coding apparatus includes: a block feature quantity calculating unit (102) which calculates, based on pixel values of pixels in the current macroblock in an input image, statistical information of each of the pixel values; an intra-prediction block size determining unit (103) which determines, based on the calculated statistical information, an intra-prediction block size according to a predetermined reference such that a larger intra-prediction block size is more likely to be selected when a degree of change in the pixel value corresponding to a predetermined direction in the current macroblock is smaller; and a coding unit (105) which performs intra-prediction coding on the current macroblock, in units of the intra-prediction block having the determined size.
    Type: Application
    Filed: December 28, 2010
    Publication date: December 1, 2011
    Inventors: Hideyuki Ohgose, Katsuki Urano, Kiyofumi Abe, Hiroshi Arakawa, Yuki Maruyama
  • Publication number: 20110274163
    Abstract: A video coding apparatus includes: a change amount detection unit that detects, based on pixel data included in a target block to be coded, an amount of change indicating a displacement between a top field and a bottom field caused by a difference in image capture time between the top field and the bottom field which are consecutive; a quantization width determination unit that determines, as a quantization width used for the target block, a first quantization width when the amount of change is a first value, and a second quantization width when the amount of change is a second value that is larger than the first value, the second quantization width being smaller than the first quantization width; and a quantization unit that quantizes the target block using the quantization width determined by the quantization width determination unit.
    Type: Application
    Filed: April 26, 2011
    Publication date: November 10, 2011
    Inventors: Kiyofumi ABE, Youji Shibahara, Koji Arimura, Hideyuki Ohgose, Yuki Maruyama
  • Patent number: 8045821
    Abstract: A coding method conversion apparatus converts the first coded data coded by the first coding method into the second coded data. The coding method conversion apparatus includes: an H.264 decoder which decodes the first coded data; a deblocking filter strength calculation unit which calculates a filter strength of deblocking filtering of a second coding method, using at least one piece of decoding information except a coding type of the first coded data, the decoding information being obtained by decoding the first coded data; and a deblocking filter which performs the deblocking filtering to reduce noise in a boundary of blocks according to the filter strength calculated by the deblocking filter strength calculation unit.
    Type: Grant
    Filed: February 14, 2008
    Date of Patent: October 25, 2011
    Assignee: Panasonic Corporation
    Inventors: Kei Tasaka, Tatsuro Juri, Katsuo Saigo, Hideyuki Ohgose, Koji Arimura, Hiroshi Arakawa, Yuki Maruyama
  • Publication number: 20110174987
    Abstract: Provided is a spectroscopic device of a new constitution, which is suited for detecting precisely a fluorescent light emitted from an inspection object in a fluorometric analysis, such as a DNA. The spectroscopic device (10) comprises a spectroscopic sensor body (21) for outputting the quantity of charge corresponding to the intensity of such a light of a spectroscopy object as corresponds to the intensity of a light having a wavelength component of a wavelength specified with the value of a gate electrode or larger, and a floating diffusion unit (51) for outputting a voltage according to the quantity of charge outputted from the spectroscopic sensor body (21). The floating diffusion unit (51) includes a plurality of serially connected charge wells (53 and 55), for which output voltages are individually detected.
    Type: Application
    Filed: June 5, 2009
    Publication date: July 21, 2011
    Applicant: National University Corporation Toyohashi University of Technology
    Inventors: Kazuaki Sawada, Hiroyasu Ishii, Yuki Maruyama