Patents by Inventor Shuichi Ojima

Shuichi Ojima 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: 8334932
    Abstract: An image processing device includes a target correction amount calculating unit operable to calculate a target correction amount based on input image signals, a frame memory operable to store the input image signals, and a scene change amount calculating unit operable to calculate a scene change amount based on an input image signal of a present frame and an input image signal of a previous frame. Moreover, the image processing device includes a correction amount calculating unit operable to calculate a correction amount for the input image signal of the present frame, based on the target correction amount and the scene change amount, and a correcting unit operable to perform image quality correction to the input image signal of the present frame to generate a corrected input image signal, thereby outputting a corrected input image signal as an output image signal.
    Type: Grant
    Filed: March 22, 2010
    Date of Patent: December 18, 2012
    Assignee: Panasonic Corporation
    Inventors: Shinya Kiuchi, Jun Ikeda, Shuichi Ojima, Tsuyoshi Hirashima, Ryouta Hata
  • Patent number: 8164594
    Abstract: It is an object to easily, and using existing devices, perform shadow enhancement that achieves an increase in the feeling of depth of 2D video. The input image data are first converted into brightness information by a brightness information calculation portion. Then, based on that brightness information, the normal direction and the edge information in the pixel targeted for processing are estimated by a normal direction estimation portion. A corrected gradation derivation portion then performs correction processing such as the addition of shadow component on the input image based on the brightness information and the estimated normal direction and edge information to create a processed image that has a feeling of depth, and then an output portion converts this to a predetermined image format and outputs it. In this way, it is possible to easily increase the feeling of depth of a 2D image through the addition of shadow, for example, in accordance with the characteristics of the input image.
    Type: Grant
    Filed: May 23, 2007
    Date of Patent: April 24, 2012
    Assignee: Panasonic Corporation
    Inventors: Tatsumi Watanabe, Shuichi Ojima
  • Patent number: 8155438
    Abstract: A specific color-adjusting stage adjusts data of an inputted color with respect to a specific color. A total color-adjusting stage adjusts the data of the inputted color with respect to a total color. The specific color-adjusting stage and the total color-adjusting stage are provided in parallel. A composing unit composes linearly an output of the specific color-adjusting stage and an output of the total color-adjusting stage. When a degree that the total color-adjusting stage adjusts the data of the inputted color increases, then a degree that the specific color-adjusting stage adjusts the data of the inputted color decreases, and vice versa.
    Type: Grant
    Filed: May 12, 2008
    Date of Patent: April 10, 2012
    Assignee: Panasonic Corporation
    Inventors: Tsuyoshi Hirashima, Jun Ikeda, Shuichi Ojima, Ryouta Hata, Shinya Kiuchi
  • Patent number: 8131098
    Abstract: The present invention executes color correction that improves the feeling of depth of a 2D image with ease and by using a preexisting device. Input image data is first converted into brightness information by a brightness information calculation portion. The interest level within the image is then estimated by an interest level estimation portion based on that information. The vanishing point is then estimated by a vanishing point estimation portion. Next, a depth estimation portion estimates the degree of depth based on the distance from the vanishing point to a pixel i and the interest level of the pixel i, and calculates a depth correction gain value. A corrected image, obtained by controlling a depth correction image process based on the depth correction gain value, is converted to a predetermined image format and outputted by an output portion.
    Type: Grant
    Filed: July 3, 2008
    Date of Patent: March 6, 2012
    Assignee: Panasonic Corporation
    Inventors: Tatsumi Watanabe, Shuichi Ojima
  • Patent number: 8107012
    Abstract: The image processing apparatus 100 acquires the image signal F1 and includes a steepening amount calculation unit 110, a contour shift amount calculation unit 120, an integration correction amount calculation 130 and an image generation unit 140, which generate a corrected image signal F9 in such a way that there is an intersection between waveforms, and that there are two regions with different areas bordered by the waveforms which overlap at the intersection point, the waveforms expressing changes in each value in image spaces displayed by the image signal and the corrected image signal respectively, when a waveform which expresses changes in the differential values of the image signal relative to the image spaces is symmetrical in a contour region of the image shown by the image signal.
    Type: Grant
    Filed: November 29, 2005
    Date of Patent: January 31, 2012
    Assignee: Panasonic Corporation
    Inventors: Shuichi Ojima, Bunpei Toji
  • Patent number: 8031213
    Abstract: There is provided a display control method capable of reducing unnecessary processing and unnecessary power consumption caused by is. The display control method uses an update judgment unit (33) for judging whether a display content has been updated, a characteristic amount extraction unit (36) for obtaining the characteristic amount of the display content, a control unit (20) for the characteristic amount extraction unit (36) to reference the obtained characteristic amount and decide a correction parameter, and a display content correction unit (35) for correcting the display content according to the correction parameter and outputting the corrected display content to a display device (40). When the update judgment unit (33) has judged that the display content is not updated, the control unit (20) cuts off power supply to the characteristic amount extraction unit (36).
    Type: Grant
    Filed: June 14, 2006
    Date of Patent: October 4, 2011
    Assignee: Panasonic Corporation
    Inventors: Ryouta Hata, Jun Ikeda, Shuichi Ojima, Tsuyoshi Hirashima, Shinya Kiuchi
  • Patent number: 8009903
    Abstract: It is an object of the invention to realize an image processor that allows the user to designate the degree of depth feeling with his single operation. An image processor includes an image data input unit, a depth data input unit, a depth degree input unit, a depth feeling correction unit, and an image data output unit. The image processor controls, in accordance with the depth data and depth degree, the gain of the depth feeling correction, so that the user can freely adjust the depth feeling degree. The process of the depth feeling degree archives both of the near view process and the distant view process, and the adjustment is carried out with the one-dimensional parameter.
    Type: Grant
    Filed: June 27, 2007
    Date of Patent: August 30, 2011
    Assignee: Panasonic Corporation
    Inventors: Shuichi Ojima, Tatsumi Watanabe
  • Patent number: 7956927
    Abstract: A video signal converter has a target pixel setting unit which sets up a position of a target pixel of an input video signal, a position parameter feeding unit which supplies a position parameter depending on the position of the target pixel set by the target pixel setting unit, and a characteristic amount calculating unit which calculates a characteristic amount of the input video signal.
    Type: Grant
    Filed: October 26, 2005
    Date of Patent: June 7, 2011
    Assignee: Panasonic Corporation
    Inventors: Shinya Kiuchi, Jun Ikeda, Shuichi Ojima, Tsuyoshi Hirashima, Ryouta Hata
  • Patent number: 7869649
    Abstract: It is an object to perform color correction that is simple and utilizes existing devices to achieve an increase in the feeling of depth in 2D images. Input image data are transformed into predetermined color information by a color information calculation portion 11. A correction amount control portion 10 determines a correction gain value for the color information according to depth information that has been input. A color information correction portion 12 performs color information correction based on the correction amount due to the contrast between the color information of a target pixel and representative color information of the surrounding region, and the correction gain value of the correction amount control portion. An output portion 13 converts this into a predetermined image format and outputs the result.
    Type: Grant
    Filed: May 4, 2007
    Date of Patent: January 11, 2011
    Assignee: Panasonic Corporation
    Inventors: Tatsumi Watanabe, Shuichi Ojima
  • Publication number: 20100194990
    Abstract: An image processing device includes a target correction amount calculating unit operable to calculate a target correction amount based on input image signals, a frame memory operable to store the input image signals, and a scene change amount calculating unit operable to calculate a scene change amount based on an input image signal of a present frame and an input image signal of a previous frame. Moreover, the image processing device includes a correction amount calculating unit operable to calculate a correction amount for the input image signal of the present frame, based on the target correction amount and the scene change amount, and a correcting unit operable to perform image quality correction to the input image signal of the present frame to generate a corrected input image signal, thereby outputting a corrected input image signal as an output image signal.
    Type: Application
    Filed: March 22, 2010
    Publication date: August 5, 2010
    Inventors: Shinya KIUCHI, Jun IKEDA, Shuichi OJIMA, Tsuyoshi HIRASHIMA, Ryouta HATA
  • Publication number: 20100097404
    Abstract: There is provided a display control method capable of reducing unnecessary processing and unnecessary power consumption caused by is. The display control method uses an update judgment unit (33) for judging whether a display content has been updated, a characteristic amount extraction unit (36) for obtaining the characteristic amount of the display content, a control unit (20) for the characteristic amount extraction unit (36) to reference the obtained characteristic amount and decide a correction parameter, and a display content correction unit (35) for correcting the display content according to the correction parameter and outputting the corrected display content to a display device (40). When the update judgment unit (33) has judged that the display content is not updated, the control unit (20) cuts off power supply to the characteristic amount extraction unit (36).
    Type: Application
    Filed: June 14, 2006
    Publication date: April 22, 2010
    Inventors: Ryouta Hata, Jun Ikeda, Shuichi Ojima, Tsuyoshi Hirashima, Shinya Kiuchi
  • Publication number: 20090022396
    Abstract: The present invention executes color correction that improves the feeling of depth of a 2D image with ease and by using a preexisting device. Input image data is first converted into brightness information by a brightness information calculation portion. The interest level within the image is then estimated by an interest level estimation portion based on that information. The vanishing point is then estimated by a vanishing point estimation portion. Next, a depth estimation portion estimates the degree of depth based on the distance from the vanishing point to a pixel i and the interest level of the pixel i, and calculates a depth correction gain value. A corrected image, obtained by controlling a depth correction image process based on the depth correction gain value, is converted to a predetermined image format and outputted by an output portion.
    Type: Application
    Filed: July 3, 2008
    Publication date: January 22, 2009
    Inventors: Tatsumi WATANABE, Shuichi Ojima
  • Publication number: 20090009525
    Abstract: A color adjustment device (100) comprises an image characteristic amount acquiring unit (10), a specific-color-area determination unit (20), and a color compensation unit (30). The image characteristic amount acquiring unit (10) acquires the image characteristic amount of an input image from the average luminance or additional information of the input image. The specific-color-area determination unit (20) determines a specific color area based on the image characteristic amount. With reference to the specific color area, the color compensation unit (30) calculates the degree of similarity of the input color of the input image to the specific color, and performs the color adjustment of the input color of the input image with respect to at least one specific color. The area of the input image which is comparatively wide and possesses a color of the same system as the specific color is not wrongly recognized as the area of the specific color.
    Type: Application
    Filed: November 28, 2005
    Publication date: January 8, 2009
    Inventors: Tsuyoshi Hirashima, Shuichi Ojima, Jun Ikeda, Ryouta Hata, Shinya Kiuchi
  • Publication number: 20080218636
    Abstract: A specific color-adjusting stage adjusts data of an inputted color with respect to a specific color. A total color-adjusting stage adjusts the data of the inputted color with respect to a total color. The specific color-adjusting stage and the total color-adjusting stage are provided in parallel. A composing unit composes linearly an output of the specific color-adjusting stage and an output of the total color-adjusting stage. When a degree that the total color-adjusting stage adjusts the data of the inputted color increases, then a degree that the specific color-adjusting stage adjusts the data of the inputted color decreases, and vice versa.
    Type: Application
    Filed: May 12, 2008
    Publication date: September 11, 2008
    Inventors: Tsuyoshi HIRASHIMA, Jun IKEDA, Shuichi OJIMA, Ryouta HATA, Shinya KIUCHI
  • Publication number: 20080198263
    Abstract: A video signal converter (100) comprises a target pixel setting unit (4) which sets up a position of a target pixel of an input video signal, a position parameter feeding unit (5) which supplies a position parameter depending on the position of the target pixel set by the target pixel setting unit, a characteristic amount calculating unit (6) which calculates characteristic amount of the input video signal, a detection-threshold setting unit (7) which sets up a detection threshold based on the characteristic amount calculated by the characteristic amount calculating unit, a compensation parameter setting unit (8) which determines a compensation parameter based on the position parameter supplied by the position parameter feeding unit and the detection threshold set by the detection-threshold setting unit, and a multiplier (9) which converts a signal of the target pixel set by the target pixel setting unit in the input video signal, based on the compensation parameter determined by the compensation parameter se
    Type: Application
    Filed: October 26, 2005
    Publication date: August 21, 2008
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventors: Shinya Kiuchi, Jun Ikeda, Shuichi Ojima, Tsuyoshi Hirashima, Ryouta Hata
  • Patent number: 7403653
    Abstract: A specific color-adjusting stage adjusts data of an inputted color with respect to a specific color. A total color-adjusting stage adjusts the data of the inputted color with respect to a total color. The specific color-adjusting stage and the total color-adjusting stage are provided in parallel. A composing unit composes linearly an output of the specific color-adjusting stage and an output of the total color-adjusting stage. When a degree that the total color-adjusting stage adjusts the data of the inputted color increases, then a degree that the specific color-adjusting stage adjusts the data of the inputted color decreases, and vice versa.
    Type: Grant
    Filed: May 7, 2004
    Date of Patent: July 22, 2008
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Tsuyoshi Hirashima, Jun Ikeda, Shuichi Ojima, Ryouta Hata, Shinya Kiuchi
  • Patent number: 7397470
    Abstract: A display controller includes a video signal-analyzing unit, a video signal-adjusting unit operable to receive a video signal, to adjust the video signal in accordance with adjustment parameter information, and to feed the adjusted video signal into a display device, and a light source-controlling unit operable to feed a light source-controlling signal into a light source in accordance with light source light-emitting amount information. The video signal-analyzing unit allows timing in which the display device displays a picture in accordance with the adjusted video signal from the video signal-adjusting unit to be synchronized with timing in which the light source changes a light-emitting amount in response to the light source-controlling signal from the light source-controlling unit.
    Type: Grant
    Filed: March 3, 2004
    Date of Patent: July 8, 2008
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Ryouta Hata, Jun Ikeda, Shuichi Ojima, Tsuyoshi Hirashima, Shinya Kiuchi
  • Patent number: 7317439
    Abstract: Picture quality on a display screen is corrected in accordance with a change either in image information or in the light state. The electronic apparatus includes a display panel, a lighting means for lighting the display panel, a parameter adjusting means for adjusting a parameter participating in picture quality so as to conform the light state while using variations in the light state of the lighting means as a trigger, a signal correcting means for inputting a display signal and correcting the input display signal in accordance with the adjusted parameter, and a driving means for driving the display panel on the basis of the corrected display signal. The light state is controlled according to the content of a file containing the information to be displayed.
    Type: Grant
    Filed: October 25, 2001
    Date of Patent: January 8, 2008
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Ryota Hata, Jun Ikeda, Shuichi Ojima, Tsuyoshi Hirashima, Tadashi Kayada, Kousuke Kubota
  • Publication number: 20080002910
    Abstract: It is an object of the invention to realize an image processor that allows the user to designate the degree of depth feeling with his single operation. An image processor 100 includes an image data input unit 200, a depth data input unit 210, a depth degree input unit 220, a depth feeling correction unit 230, and an image data output unit 240. The image processor 100 controls, in accordance with the depth data and depth degree, the gain of the depth feeling correction, so that the user can freely adjust the depth feeling degree. The process of the depth feeling degree archives both of the near view process and the distant view process, and the adjustment is carried out with the one-dimensional parameter.
    Type: Application
    Filed: June 27, 2007
    Publication date: January 3, 2008
    Inventors: Shuichi Ojima, Tatsumi Watanabe
  • Publication number: 20080002042
    Abstract: The image processing apparatus 100 acquires the image signal F1 and includes a steepening amount calculation unit 110, a contour shift amount calculation unit 120, an integration correction amount calculation 130 and an image generation unit 140, which generate a corrected image signal F9 in such a way that there is an intersection between waveforms, and that there are two regions with different areas bordered by the waveforms which overlap at the intersection point, the waveforms expressing changes in each value in image spaces displayed by the image signal and the corrected image signal respectively, when a waveform which expresses changes in the differential values of the image signal relative to the image spaces is symmetrical in a contour region of the image shown by the image signal.
    Type: Application
    Filed: November 29, 2005
    Publication date: January 3, 2008
    Inventors: Shuichi Ojima, Bunpei Toji