Patents by Inventor Masao Hiramoto

Masao Hiramoto 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: 11129539
    Abstract: A pulse measuring device includes: an image acquisition unit that acquires plural pieces of time-series photographed image data obtained by photographing a living body; an image processor that generates plural pieces of transformed image data corresponding to the plural pieces of photographed image data by performing a multiple resolution analysis on each of the plural pieces of photographed image data a plurality of times, each of the plural pieces of photographed image data being decomposed into a high-resolution component and a low-resolution component on the multiple resolution analysis; and a pulse measuring unit that calculates a feature quantity indicating luminance of a predetermined area in each of the plural pieces of transformed image data, calculates a variation period of the feature quantity by analyzing time-series data of the feature quantity, and calculates a pulse of the living body based on the variation period of the feature quantity.
    Type: Grant
    Filed: August 23, 2017
    Date of Patent: September 28, 2021
    Assignee: OMRON Corporation
    Inventors: Hiromatsu Aoki, Masao Hiramoto, Tomoaki Kimura
  • Publication number: 20170347898
    Abstract: A pulse measuring device includes: an image acquisition unit that acquires plural pieces of time-series photographed image data obtained by photographing a living body; an image processor that generates plural pieces of transformed image data corresponding to the plural pieces of photographed image data by performing a multiple resolution analysis on each of the plural pieces of photographed image data a plurality of times, each of the plural pieces of photographed image data being decomposed into a high-resolution component and a low-resolution component on the multiple resolution analysis; and a pulse measuring unit that calculates a feature quantity indicating luminance of a predetermined area in each of the plural pieces of transformed image data, calculates a variation period of the feature quantity by analyzing time-series data of the feature quantity, and calculates a pulse of the living body based on the variation period of the feature quantity.
    Type: Application
    Filed: August 23, 2017
    Publication date: December 7, 2017
    Applicant: OMRON Corporation
    Inventors: Hiromatsu AOKI, Masao HIRAMOTO, Tomoaki KIMURA
  • Patent number: 9628776
    Abstract: A 3D image capture device according to an aspect of the present invention includes: a light-transmitting section including N different kinds of first filters (where N is an integer equal to or greater than two) which are arranged so that light rays are incident on those filters in parallel with each other and that the transmittances have mutually different wavelength dependences; an image sensor including N second filters, of which the transmittances have mutually different wavelength dependences; and an image capturing driving section driving the light-transmitting section so that image capturing sessions are carried out M times sequentially (where M is an integer equal to or greater than N), and that each of the first filters changes its positions from one of N positions that have been set in advance with respect to the image sensor after each time the image capturing session is carried out.
    Type: Grant
    Filed: April 3, 2012
    Date of Patent: April 18, 2017
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Yasunori Ishii, Masao Hiramoto
  • Patent number: 9565420
    Abstract: This image processor 10 includes: an input interface 11 that receives first and second images, on one of which the position of the subject has shifted in a particular direction from the position on the other; a color image generating section 13a that generates a color image in which the pixel values of respective pixels of the first and second images are used as the values of first and second colors, respectively; a decision section 13b that calculates an index value indicating the degree of color shift between the first and second colors in the color image and that determines, based on the index value, whether or not the first and second images match each other; and an image moving section 13c that performs, if the decision has been made that the first and second images do not match each other, the processing of making the second image closer to the first image by replacing the pixel value of each pixel of the second image with the pixel value of a pixel that is adjacent to the former pixel in the particular
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: February 7, 2017
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Masao Hiramoto, Yasunori Ishii, Yusuke Monobe
  • Patent number: 9544570
    Abstract: A 3D image capture device according to an embodiment includes: a light transmitting section 1 with a transmitting area 1a, of which the spectral transmittance characteristic varies in a first direction; an image sensor 2a which is arranged to receive light that has been transmitted through the light transmitting section 1 and which outputs a photoelectrically converted signal representing the light received; and an image processing section which extracts an edge of a subject in the first direction, which is included in an image that has been generated based on the photoelectrically converted signal supplied from the image sensor 2a, and which estimates information about the depth of the subject based on a lightness or hue pattern of a background in the vicinity of the edge extracted.
    Type: Grant
    Filed: April 11, 2012
    Date of Patent: January 10, 2017
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Masao Hiramoto, Yasunori Ishii
  • Patent number: 9462254
    Abstract: An image sensor 2 includes: a photoelectric conversion layer 1d including a plurality of photosensitive cells; a reflective layer 1c that reflects light that has been transmitted through the photoelectric conversion layer 1d; a micro lens layer 1a that includes a plurality of micro lenses that are arranged between the photoelectric conversion layer 1d and the reflective layer 1c; and a transmitted light controlling layer 1b that is arranged between the photoelectric conversion layer 1d and the reflective layer 1c and that is able to change optical transmittance in accordance with an instruction given by a controller. The micro lens layer 1a is arranged so that light that has been transmitted through one of the photosensitive cells and then reflected from the reflective layer 1c is incident on the same photosensitive cell again.
    Type: Grant
    Filed: January 16, 2013
    Date of Patent: October 4, 2016
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Masao Hiramoto, Yasunori Ishii, Yusuke Monobe
  • Patent number: 9456198
    Abstract: A depth estimating image capture device includes: an image sensor; an optical lens; a light-transmitting member arranged on the plane; and a signal processing section. The member includes a first mirror inside to reflect the light at least partially and a second mirror with the same reflection property as the first mirror on its upper surface. The first mirror has a reflective surface tilted with respect to the upper surface of the member. The second mirror has a reflective surface that is parallel to the upper surface. The first and second mirrors and are arranged so that a light beam coming from a point on a subject through the lens is reflected from the first mirror and from the second mirror and irradiates some area on an image capturing plane to make the irradiated area change according to the depth of the point on the subject.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: September 27, 2016
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Masao Hiramoto, Yasunori Ishii, Yusuke Monobe
  • Patent number: 9438885
    Abstract: The 3D image capture device includes a light-transmitting section with n transmitting areas (where n is an integer and n?2) that have different transmission wavelength ranges and each of which transmits a light ray falling within a first wavelength range, a solid-state image sensor that includes a photosensitive cell array having a number of unit blocks, and a signal processing section that processes the output signal of the image sensor. Each unit block includes n photosensitive cells including a first photosensitive cell that outputs a signal representing the quantity of the light ray falling within the first wavelength range. The signal processing section generates at least two image data with parallax by using a signal obtained by multiplying a signal supplied from the first photosensitive cell by a first coefficient, which is real number that is equal to or greater than zero but less than one.
    Type: Grant
    Filed: August 19, 2011
    Date of Patent: September 6, 2016
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Yasunori Ishii, Masao Hiramoto
  • Patent number: 9438890
    Abstract: An image processor 7 includes: an in-focus area extracting section 72 that extracts an in-focus area of two images with parallax; a color conversion matrix calculating section 73 that obtains a color conversion matrix between the two images by reference to information about the colors of pixels that are included in the in-focus area of the two images; and a color conversion section 74 that converts the color of one of the two images by using the color conversion matrix.
    Type: Grant
    Filed: July 4, 2012
    Date of Patent: September 6, 2016
    Assignee: Panasonic Intellectual Property Corporation of America
    Inventors: Yasunori Ishii, Masao Hiramoto
  • Patent number: 9429834
    Abstract: This 3D image capture device includes an image capturing section 100 and a signal processing section 200. The image capturing section 100 includes a light-transmitting section 2 with first, second and third transmitting areas that have mutually different transmission wavelength ranges, a solid-state image sensor 1 that is arranged to receive the light transmitted through the light-transmitting section, and an optical system 3 that produces an image on an imaging area of the solid-state image sensor. The signal processing section 200 includes an image generating section 7 that generates three image signals, representing the quantities of light rays that have been incident on the first, second and third transmitting areas, based on the output signal of the solid-state image sensor 1, and a parallax estimating section 40 that estimates parallax based on the three image signals.
    Type: Grant
    Filed: August 19, 2011
    Date of Patent: August 30, 2016
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Yasunori Ishii, Masao Hiramoto
  • Patent number: 9425229
    Abstract: This solid-state image sensor includes a photosensitive cell array including first through fourth photosensitive cells 2a to 2d, a dispersing element array including first and second dispersing elements 1a and 1b arranged to face the first and third photosensitive cells 2a and 2c, respectively, and a microlens array including first and second microlenses 4a and 4b. The first dispersing element 1a makes parts of incoming light that have come through the first microlens 4a and that have first and second color components incident on the first and second photosensitive cells 2a and 2b, respectively. The second dispersing element 1b makes parts of incoming light that have come through the second microlens 4b and that have third and fourth color components incident on the third and fourth photosensitive cells 2c and 2d, respectively. In addition, light that has not passed through the first and second microlenses 4a and 4b is also incident on the second and fourth photosensitive cells 2b and 2d.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: August 23, 2016
    Assignee: Panasonic Intellectual Property Corporation of America
    Inventors: Masao Hiramoto, Seiji Nishiwaki, Toshiya Fujii, Tatsuya Nakamura
  • Patent number: 9282881
    Abstract: An exemplary 3D image shooting apparatus comprises: a polarized light source; an image capturing section that sequentially captures an image of the object that is being illuminated with each of plane polarized light rays, and an image processor. The image capturing section includes: a lens; an image sensor; and an incoming light transmitting section which has a transparent area and a plurality of polarization filter areas. The polarization filter areas are arranged outside of the transparent area, generally have a concentric ring shape, and include left and right filter areas so that their polarization transmission axis directions define an angle ? (0<?<90 degrees). The image processing section generates a plurality of images from light that has been transmitted through the transparent area and light that has been transmitted through the plurality of polarization filter areas.
    Type: Grant
    Filed: August 10, 2012
    Date of Patent: March 15, 2016
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Brahm Pal Singh, Katsuhiro Kanamori, Masao Hiramoto
  • Patent number: 9250065
    Abstract: This image capture device includes: a light-transmitting section 1 that is made up of a plurality of portions 1AB, each including diffraction regions 1D1, 1D2 that diffract incoming light, a transparent region 1CLR that transmits the incoming light without diffracting it, and polarization regions 1P1, 1P2 arranged so as to overlap at least partially with the diffraction regions 1D1, 1D2; an image sensor in which a plurality of unit elements are arranged two-dimensionally on an imaging area, wherein each of the unit elements includes a first photosensitive cell, a second photosensitive cell, and a polarization filter arranged so as to face the first photosensitive cell; and an imaging section configured to obtain images produced on the imaging area by the light transmitted through the transparent region and by the light transmitted through the diffraction region.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: February 2, 2016
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Masao Hiramoto, Yasunori Ishii, Yusuke Monobe
  • Patent number: 9215966
    Abstract: In one embodiment, an element 106 transform, with a voltage, non-polarized light into plane polarized light with an arbitrary plane of polarization. A synchronizer 112 gives the plane of polarization control element 106 an instruction to rotate the plane of polarization, thereby getting the plane of polarization of the illumination rotated and casting that polarized light toward the object. At the same time, the synchronizer 112 sends a shooting start signal to an image sensor 110, thereby getting video. The synchronizer 112 performs these processing steps multiple times. A captured video signal is sent to an image processing processor 108, where LL, RR and CC images are separately generated as images of light rays that have passed through left and right polarizing areas and the central non-polarizing area and left and right parallax signals are generated and sent to a 3D display section 122.
    Type: Grant
    Filed: April 26, 2012
    Date of Patent: December 22, 2015
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Katsuhiro Kanamori, Masao Hiramoto
  • Patent number: 9179114
    Abstract: This solid-state image sensor includes an array of photosensitive cells and an array of dispersive elements. The photosensitive cell array is comprised of a plurality of unit blocks 40, each including four photosensitive cells 2a, 2b, 2c and 2d. A condensing element 4c is further arranged to cover the photosensitive cells 2a and 2b and condenses incoming light onto the photosensitive cells 2a and 2b.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: November 3, 2015
    Assignee: Panasonic Intellectual Property Corporation of America
    Inventors: Masao Hiramoto, Toshiya Fujii, Tatsuya Nakamura, Seiji Nishiwaki, Yusuke Monobe
  • Patent number: 9179127
    Abstract: This 3D image capture device includes: a light transmitting section 1 with first and second light transmitting areas 1L and 1R; an image sensor 2a with a plurality of unit blocks; an imaging section 3; and an image processing section which generates multi-viewpoint images based on photoelectrically converted signals supplied from the image sensor 2a. If functions representing the respective spectral transmittances of the first light transmitting area 1L, the second light transmitting area 1R, a first type of pixel, and a second type of pixel with respect to the wavelength ? of visible radiation are identified by TL(?), TR(?), T1(?), and T2(?), respectively, TL(?)?TR(?) and T1(?)?T2(?) are satisfied, and each of TL(?), TR(?), T1(?) and T2(?) has at least one local maximum value and at least one local minimum value within each of red, green and blue wavelength ranges.
    Type: Grant
    Filed: May 9, 2012
    Date of Patent: November 3, 2015
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Masao Hiramoto, Yasunori Ishii
  • Patent number: 9161017
    Abstract: This 3D image capture device includes: a light-transmitting section 1 including first and second light-transmitting areas 1L and 1R; an image sensor 2a arranged to receive the light transmitted through the light-transmitting section 1; an imaging section 3 that produces an image on an imaging area of the image sensor 2a; and an image capturing driving section that drives the image sensor so as to perform image capturing sessions at least twice in a row and drives the light-transmitting section so that the first and second light-transmitting areas change their positions every image capturing session. The first light-transmitting area 1L transmits light falling within a first wavelength range included in a color red wavelength range and light falling within a second wavelength range included in a color green wavelength range.
    Type: Grant
    Filed: July 4, 2012
    Date of Patent: October 13, 2015
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Masao Hiramoto, Yasunori Ishii
  • Patent number: 9154770
    Abstract: A 3D image capture device includes: a light transmitting section 2 with m transmitting areas (where m is an integer and m?2) that have different spectral transmittance characteristics; and an image sensor 1 which is arranged to receive light rays that have been transmitted through the m transmitting areas and in which unit elements are arranged. Each unit element includes n photosensitive cells (where n is an integer and n?m) and n transmitting filters with mutually different spectral transmittance characteristics which are arranged so as to face the n photosensitive cells. The image capture device further includes an image processing section which modifies an n×m matrix that is defined by the respective spectral transmittance characteristics of the m transmitting areas and the n transmitting filters by changing the angle between at least two out of m column vectors of the n×m matrix and which generates multi-viewpoint images using the modified n×m matrix.
    Type: Grant
    Filed: May 9, 2012
    Date of Patent: October 6, 2015
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Yasunori Ishii, Masao Hiramoto
  • Patent number: 9118796
    Abstract: A polarization color image capture device includes: a polarization color filter plate including a first area configured to transmit light that is polarized in a first direction and that falls within a first wavelength range, a second area configured to transmit light that is polarized in a second direction and that falls within a second wavelength range, and a third area configured to transmit incoming light at least partially; an image sensor in which a plurality of unit blocks, each including first, second and third photosensitive cells and first, second and third polarization filters that are arranged to face the first, second and third photosensitive cells, respectively, are arranged on an imaging area, the polarization transmission axis directions of the first, second and third polarization filters being different from each other; and an optical lens that produces an image on the imaging area of the image sensor.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: August 25, 2015
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Masao Hiramoto, Yusuke Monobe
  • Patent number: 9099370
    Abstract: A solid-state image sensor includes a dispersing element array which is arranged to face a photosensitive cell array and which includes a plurality of high-refractive-index transparent portions, a low-refractive-index transparent layer that fills a gap between the high-refractive-index transparent portions, and pairs of dispersing elements arranged to face multiple unit blocks of the photosensitive cell array. Each pair of dispersing elements is comprised of: a first dispersing element which includes one of the high-refractive-index transparent portions and which splits incoming light into two light rays representing first and second color components, respectively; and a second dispersing element which includes another one of the high-refractive-index transparent portions and which splits the incoming light into two light rays representing third and fourth color components, respectively.
    Type: Grant
    Filed: September 2, 2013
    Date of Patent: August 4, 2015
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Seiji Nishiwaki, Tatsuya Nakamura, Masao Hiramoto