Patents by Inventor Hideaki Sasahara

Hideaki Sasahara 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: 8401251
    Abstract: An object is to provide a face pose estimating device, a face pose estimating method, and a face pose estimating program that allow high accuracy estimation of a face pose even if a face organ cannot be detected from an image. A face organ detector 11 of the face pose estimating device 10 detects a face organ from an image frame. A face pose candidate set generator 16 generates a face pose candidate set. A first similarity estimator 12 computes 3D-model-based similarities. A second similarity estimator 13 computes appearance-based similarities. A first likelihood estimator 141 computes a first likelihood corresponding to the 3D-model-based similarity. A second likelihood estimator 142 computes a second likelihood corresponding to the appearance-based similarities. An integrated likelihood estimator 143 computes an integrated likelihood by using the first and second likelihoods. A face pose estimator 15 estimates the face pose by using the integrated likelihood.
    Type: Grant
    Filed: January 16, 2009
    Date of Patent: March 19, 2013
    Assignee: Asahi Kasei Kabushiki Kaisha
    Inventors: Hideaki Sasahara, Yoshihiro Noguchi, Keiji Shimada
  • Publication number: 20110052013
    Abstract: An object is to provide a face pose estimating device, a face pose estimating method, and a face pose estimating program that allow high accuracy estimation of a face pose even if a face organ cannot be detected from an image. A face organ detector 11 of the face pose estimating device 10 detects a face organ from an image frame. A face pose candidate set generator 16 generates a face pose candidate set. A first similarity estimator 12 computes 3D-model-based similarities. A second similarity estimator 13 computes appearance-based similarities. A first likelihood estimator 141 computes a first likelihood corresponding to the 3D-model-based similarity. A second likelihood estimator 142 computes a second likelihood corresponding to the appearance-based similarities. An integrated likelihood estimator 143 computes an integrated likelihood by using the first and second likelihoods. A face pose estimator 15 estimates the face pose by using the integrated likelihood.
    Type: Application
    Filed: January 16, 2009
    Publication date: March 3, 2011
    Applicant: ASAHI KASEI KABUSHIKI KAISHA
    Inventors: Hideaki Sasahara, Yoshihiro Noguchi, Keiji Shimada
  • Patent number: 7557866
    Abstract: An AGC control section (110) has a first operation mode for controlling the gain of a variable gain amplifier (103) to maintain the amplitude of the sync signal measured by a sync signal amplitude measuring circuit (108) at a constant value, and a second operation mode for preventing the gain from being increased even when the amplitude of the sync signal measured by the video signal processing circuit (109) is smaller than the predetermined first reference value and reducing the gain of the variable gain amplifier (103) only when the amplitude of the video signal exceeds a predetermined second reference value. During operation in the first operation mode, when the amplitude of the sync signal is smaller than the predetermined first reference value and the amplitude of the video signal is greater than the predetermined second reference value, the mode is switched to the second operation mode.
    Type: Grant
    Filed: April 6, 2004
    Date of Patent: July 7, 2009
    Assignee: Asahi Kasei EMD Corporation
    Inventors: Hideaki Sasahara, Nobuyoshi Ukaji, Ken Ishihara
  • Publication number: 20060203128
    Abstract: An AGC control section (110) has a first operation mode for controlling the gain of a variable gain amplifier (103) to maintain the amplitude of the sync signal measured by a sync signal amplitude measuring circuit (108) at a constant value, and a second operation mode for preventing the gain from being increased even when the amplitude of the sync signal measured by the video signal processing circuit (109) is smaller than the predetermined first reference value and reducing the gain of the variable gain amplifier (103) only when the amplitude of the video signal exceeds a predetermined second reference value. During operation in the first operation mode, when the amplitude of the sync signal is smaller than the predetermined first reference value and the amplitude of the video signal is greater than the predetermined second reference value, the mode is switched to the second operation mode.
    Type: Application
    Filed: April 6, 2004
    Publication date: September 14, 2006
    Inventors: Hideaki Sasahara, Nobuyoshi Ukaji, Ken Ishihara