Patents by Inventor Natsuki Saito

Natsuki Saito 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).

  • Publication number: 20150178895
    Abstract: An image processing device includes: a character region detecting unit which detects a character region including a character from an input image; a feature amount detecting unit which detects a feature amount indicating a level of deformation of an image in the character region detected by the character region detecting unit; a correction gain calculating unit which calculates a correction gain based on the feature amount detected by the feature amount detecting unit; and a correcting unit which corrects the input image by performing image processing on the image in the character region such that the image processing has an effect which decreases with a decrease in the correction gain calculated by the correction gain calculating unit.
    Type: Application
    Filed: March 4, 2015
    Publication date: June 25, 2015
    Inventors: Yoshiaki OWAKI, Natsuki SAITO
  • Publication number: 20120098960
    Abstract: A video link type illuminating control system and video link type illuminating control method allow a signal containing the idea of the content creator to be added to an airwave signal or a video content signal so that the audio-visual space is illuminated based on the control signal generated from the signal. As a result, illumination can be controlled in linkage with video, thus increasing visual realism.
    Type: Application
    Filed: August 26, 2008
    Publication date: April 26, 2012
    Inventors: Toshihiro Fujino, Yuichi Ishikawa, Natsuki Saito
  • Publication number: 20110285712
    Abstract: An image signal processing apparatus includes an output unit that outputs an image, a detection unit that detects that the output unit is outputting a 3D image, and a light modulation control unit that causes a light emitting apparatus to reduce luminance of a light emitting unit thereof, in response to the detection by the detection unit that the output unit is outputting a 3D image.
    Type: Application
    Filed: May 23, 2011
    Publication date: November 24, 2011
    Inventors: Kumiko Arai, Shinya Kiuchi, Natsuki Saito, Yoshiaki Owaki
  • Publication number: 20100328343
    Abstract: There is provided an image signal processing device for receiving an image signal using a first color signal, and converting the image signal to image data using a second color signal to output the image data, the image signal processing device including an image signal input unit for receiving the image signal using the first color signal; a clip determination unit for determining whether or not the first color signal is a domain end of the relevant signal or a neighboring color of a specific color gamut end; a distance calculation unit for calculating a distance to a closest pixel that is not clipped with respect to a pixel determined as the signal domain end or the neighboring color of the specific color gamut end; an adjustment amount determination unit for determining a color signal adjustment amount with respect to a color signal in each pixel; a color signal adjustment unit for adjusting the color signal in each pixel by the color signal adjustment amount to obtain the second color signal; and an image
    Type: Application
    Filed: December 17, 2008
    Publication date: December 30, 2010
    Inventors: Natsuki Saito, Mitsuhiro Mori
  • Patent number: 7737975
    Abstract: The normal vector information generating device generates normal vector information on the surface of an object, and includes: an image information obtaining unit obtaining information about an image of the object, the information including luminance information about luminance of light from the object and polarization information about polarization of the light; a shadow area extracting unit extracting an attached shadow area and a cast shadow area from the image based on the luminance information and the polarization information, the attached shadow area appearing on the surface of the object depending on an angle of incidence light, and the cast shadow area appearing on the surface of a material body when the light is blocked by the object; and a normal vector information generating unit generating normal vector information identifying a normal vector on the surface of the object in the attached shadow area using the polarization information.
    Type: Grant
    Filed: January 29, 2009
    Date of Patent: June 15, 2010
    Assignee: Panasonic Corporation
    Inventors: Satoshi Sato, Katsuhiro Kanamori, Natsuki Saito, Mikiya Nakata
  • Patent number: 7571099
    Abstract: A voice synthesis device for generating synthetic voice having great freedom in voice quality and good sound quality from text data is provided.
    Type: Grant
    Filed: January 17, 2005
    Date of Patent: August 4, 2009
    Assignee: Panasonic Corporation
    Inventors: Natsuki Saito, Takahiro Kamai, Yumiko Kato
  • Publication number: 20090135183
    Abstract: The normal vector information generating device generates normal vector information on the surface of an object, and includes: an image information obtaining unit obtaining information about an image of the object, the information including luminance information about luminance of light from the object and polarization information about polarization of the light; a shadow area extracting unit extracting an attached shadow area and a cast shadow area from the image based on the luminance information and the polarization information, the attached shadow area appearing on the surface of the object depending on an angle of incidence light, and the cast shadow area appearing on the surface of a material body when the light is blocked by the object; and a normal vector information generating unit generating normal vector information identifying a normal vector on the surface of the object in the attached shadow area using the polarization information.
    Type: Application
    Filed: January 29, 2009
    Publication date: May 28, 2009
    Inventors: Satoshi Sato, Katsuhiro Kanamori, Natsuki Saito, Mikiya Nakata
  • Patent number: 7454343
    Abstract: A speech synthesizer that provides high-quality sound along with stable sound quality, including: a target parameter generation unit; a speech element DB; an element selection unit; a mixed parameter judgment unit which determines an optimum parameter combination of target parameters and speech elements; a parameter integration unit which integrates the parameters; and a waveform generation unit which generates synthetic speech. High-quality and stable synthetic speech is generated by combining, per parameter dimension, the parameters with stable sound quality generated by the target parameter generation unit with speech elements with high sound quality and a sense of true speech selected by the element selection unit.
    Type: Grant
    Filed: April 12, 2007
    Date of Patent: November 18, 2008
    Assignee: Panasonic Corporation
    Inventors: Yoshifumi Hirose, Takahiro Kamai, Yumiko Kato, Natsuki Saito
  • Patent number: 7349847
    Abstract: A speech synthesis apparatus appropriately transforms a voice characteristic of speech. The speech synthesis apparatus includes an element storing unit in which speech elements are stored, and a function storing unit in which transformation functions are stored, an adaptability judging unit which derives a degree of similarity by comparing a speech element stored in the element storing unit with an acoustic characteristic of the speech element used for generating a transformation function stored in the function storing unit. The speech synthesis apparatus also includes a selecting unit and voice characteristic transforming unit which transforms, for each speech element stored in the element storing unit, based on the degree of similarity derived by the adaptability judging unit, a voice characteristic of the speech element by applying one of the transformation functions stored in the function storing unit.
    Type: Grant
    Filed: February 13, 2006
    Date of Patent: March 25, 2008
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yoshifumi Hirose, Natsuki Saito, Takahiro Kamai
  • Publication number: 20070203702
    Abstract: A speech synthesizer that provides high-quality sound along with stable sound quality, including: a target parameter generation unit; a speech element DB; an element selection unit; a mixed parameter judgment unit which determines an optimum parameter combination of target parameters and speech elements; a parameter integration unit which integrates the parameters; and a waveform generation unit which generates synthetic speech. High-quality and stable synthetic speech is generated by combining, per parameter dimension, the parameters with stable sound quality generated by the target parameter generation unit with speech elements with high sound quality and a sense of true speech selected by the element selection unit.
    Type: Application
    Filed: April 12, 2007
    Publication date: August 30, 2007
    Inventors: Yoshifumi Hirose, Takahiro Kamai, Yumiko Kato, Natsuki Saito
  • Patent number: 7257534
    Abstract: To provide a speech synthesis apparatus which can prevent user confusion and deterioration of the quality of synthesized speech resulting from incompleteness of the sentences to be read out, and thus can read out speech which is easily understandable to the user.
    Type: Grant
    Filed: December 16, 2005
    Date of Patent: August 14, 2007
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Natsuki Saito, Takahiro Kamai
  • Publication number: 20070156408
    Abstract: A voice synthesis device for generating synthetic voice having great freedom in voice quality and good sound quality from text data is provided.
    Type: Application
    Filed: January 17, 2005
    Publication date: July 5, 2007
    Inventors: Natsuki Saito, Takahiro Kamai, Yumiko Kato
  • Publication number: 20070094029
    Abstract: To provide a speech synthesis method of reading out units of synthesized speech without fail and in an easy to understand manner, even when playback of the units of synthesized speech are simultaneously requested. The duration prediction unit predicts the playback duration of synthesized speech to be synthesized based on text. The time constraint satisfaction judgment unit judges whether a constraint condition concerning the playback timing of the synthesized speech is satisfied or not, based on the predicted playback duration. If it judged that the constraint condition is not satisfied, the content modification unit shifts the playback starting timing of the synthesized speech of the text forward or backward, and modifies the contents of the text indicating time and distance in accordance with the shifted time. The synthesized speech generation unit generates synthesized speech based on the text having the modified contents and plays it back.
    Type: Application
    Filed: May 16, 2006
    Publication date: April 26, 2007
    Inventors: Natsuki Saito, Takahiro Kamai, Yumiko Kato, Yoshifumi Hirose
  • Patent number: 7072835
    Abstract: A method and apparatus for speech recognition of the present application has a process to collate, with an input utterance, an acoustic model corresponding to a hypothesis to be expressed by the connection of utterance segments, such as phonemes or syllables, and developed according to a length of an input utterance by an inter-word connection rule thereby obtaining a recognition score. Within a word of the hypothesis, the similar hypotheses high in utterance score within a predetermined threshold from the maximum value of the score are all held to a word end irrespectively of the number of hypotheses. Meanwhile, at a word end of the hypotheses, the hypotheses are narrowed to a predetermined number of upper ranking in the order of higher score.
    Type: Grant
    Filed: January 17, 2002
    Date of Patent: July 4, 2006
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Tomohiro Konuma, Tsuyoshi Inoue, Mitsuru Endo, Natsuki Saito, Akira Ishida, Tatsuya Kimura
  • Publication number: 20060136213
    Abstract: A speech synthesis apparatus which can appropriately transform a voice characteristic of a speech is provided. The speech synthesis apparatus includes an element storing unit in which speech elements are stored, a function storing unit in which transformation functions are stored, an adaptability judging unit which derives a degree of similarity by comparing a speech element stored in the element storing unit with an acoustic characteristic of the speech element used for generating a transformation function stored in the function storing unit, and a selecting unit and voice characteristic transforming unit which transforms, for each speech element stored in the element storing unit, based on the degree of similarity derived by the adaptability judging unit, a voice characteristic of the speech element by applying one of the transformation functions stored in the function storing unit.
    Type: Application
    Filed: February 13, 2006
    Publication date: June 22, 2006
    Inventors: Yoshifumi Hirose, Natsuki Saito, Takahiro Kamai
  • Publication number: 20060106609
    Abstract: To provide a speech synthesis apparatus which can prevent confusing its users and deteriorating the quality of synthesized speech resulting from incompleteness of the sentences to be read out, and thus can read out speech which is easily understandable to the user.
    Type: Application
    Filed: December 16, 2005
    Publication date: May 18, 2006
    Inventors: Natsuki Saito, Takahiro Kamai
  • Publication number: 20020128836
    Abstract: A method and apparatus for speech recognition of the present application has a process to collate, with an input utterance, an acoustic model corresponding to a hypothesis to be expressed by the connection of utterance segments, such as phonemes or syllables, and developed according to a length of an input utterance by an inter-word connection rule thereby obtaining a recognition score. Within a word of the hypothesis, the similar hypotheses high in utterance score within a predetermined threshold from the maximum value of the score are all held to a word end irrespectively of the number of hypotheses. Meanwhile, at a word end of the hypotheses, the hypotheses are narrowed to a predetermined number of upper ranking in the order of higher score.
    Type: Application
    Filed: January 17, 2002
    Publication date: September 12, 2002
    Inventors: Tomohiro Konuma, Tsuyoshi Inoue, Mitsuru Endo, Natsuki Saito, Akira Ishida, Tatsuya Kimura
  • Publication number: 20020091520
    Abstract: A sentence or text based input utterance is prepared into word-string candidates each based on one to several words, starting from the beginning of a sentence. The candidates are displayed. A user is allowed to successively select and fix a candidate, to prepare a candidate for the following utterance on the basis of the selected candidate. The present invention is a text input method and apparatus adapted to repeat these processes. This eliminates the necessity to keep a memory space for search taking account of a number of combinations of word-string candidates, thus greatly reducing the storage capacity. Reduction is also possible in speech-recognition process amount. These makes possible apparatus size reduction. Furthermore, the user who is allowed to input one or more continuous utterances is free from troublesomeness as encountered in word-based input.
    Type: Application
    Filed: November 20, 2001
    Publication date: July 11, 2002
    Inventors: Mitsuru Endo, Makoto Nishizaki, Natsuki Saito