Patents by Inventor Tomonori Fukuta
Tomonori Fukuta 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).
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Patent number: 10460195Abstract: A luminance variation (dI) pertaining to each pixel is calculated (21) using a plurality of captured images obtained by image capturing under different illumination conditions, a texture variation (dF) pertaining to each pixel is calculated (22) using a plurality of captured images obtained by image capturing at different time points, and a subject region is extracted (23) based on the luminance variation (dI) and the texture variation (dF). A variation in the texture feature (F) pertaining to each pixel between the images is calculated as the texture variation (dF). The subject can be extracted with a high accuracy even when there are changes in the ambient light or the background.Type: GrantFiled: March 27, 2015Date of Patent: October 29, 2019Assignee: Mitsubishi Electric CorporationInventors: Yudai Nakamura, Tomonori Fukuta, Masashi Kamiya, Masahiro Naito
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Patent number: 9939909Abstract: A hand region is detected in a captured image, and for each part of the background area, a light source presence degree indicating the probability that a light source is present is determined according to the luminance or color of that part; on the basis of the light source presence degree, a region in which the captured image is affected by a light source is estimated, and if the captured image includes a region estimated to be affected by a light source, whether or not a dropout has occurred in the hand region in the captured image is decided; on the basis of the result of this decision, an action is determined. Gesture determinations can be made correctly even when the hand region in the captured image is affected by a light source at the time of gesture manipulation input.Type: GrantFiled: May 15, 2014Date of Patent: April 10, 2018Assignee: Mitsubishi Electric CorporationInventors: Nobuhiko Yamagishi, Yudai Nakamura, Tomonori Fukuta
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Patent number: 9904371Abstract: A hand region is detected in a captured image, and for each part of the background area, a light source presence degree indicating the probability that a light source is present is determined according to the luminance or color of that part; on the basis of the light source presence degree, a region in which the captured image is affected by a light source is estimated, and if the captured image includes a region estimated to be affected by a light source, whether or not a dropout has occurred in the hand region in the captured image is decided; on the basis of the result of this decision, an action is determined. Gesture determinations can be made correctly even when the hand region in the captured image is affected by a light source at the time of gesture manipulation input.Type: GrantFiled: May 15, 2014Date of Patent: February 27, 2018Assignee: Mitsubishi Electric CorporationInventors: Nobuhiko Yamagishi, Yudai Nakamura, Tomonori Fukuta
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Publication number: 20180039852Abstract: A luminance variation (dI) pertaining to each pixel is calculated (21) using a plurality of captured images obtained by image capturing under different illumination conditions, a texture variation (dF) pertaining to each pixel is calculated (22) using a plurality of captured images obtained by image capturing at different time points, and a subject region is extracted (23) based on the luminance variation (dI) and the texture variation (dF). A variation in the texture feature (F) pertaining to each pixel between the images is calculated as the texture variation (dF). The subject can be extracted with a high accuracy even when there are changes in the ambient light or the background.Type: ApplicationFiled: March 27, 2015Publication date: February 8, 2018Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Yudai NAKAMURA, Tomonori FUKUTA, Masashi KAMIYA, Masahiro NAITO
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Patent number: 9778971Abstract: A slave device is equipped with: a parameter setting portion for setting different values according to the content of commands sent from a master device, as parameter values for detecting anomalies; and an anomaly detecting portion for detecting anomalies by comparing the time corresponding to a parameter value that has been set by the parameter setting portion and the measured time of a process carried out in response to a command.Type: GrantFiled: January 20, 2012Date of Patent: October 3, 2017Assignee: Mitsubishi Electric CorporationInventors: Satoshi Michihata, Kiyoyasu Maruyama, Satoko Miki, Tomonori Fukuta, Kazuhiro Tanaka
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Patent number: 9619873Abstract: An image processing device includes: a calculator that calculates a gray scale histogram for each color component of an image signal; a calculator that calculates, for each color component, a maximum and a minimum of classes having a frequency greater than zero in the gray scale histogram; a determiner that generates, for each color component, a histogram having classes each having an absolute difference value between the frequencies of adjacent classes in the gray scale histogram, and compares the absolute difference values in the histograms with a value to determine, from the presence or absence of an absolute difference value exceeding the value, an image type of the image; a generator that generates a gray scale correction curve from the calculated maximum and minimum for each color component; and a corrector that performs gray scale correction on the image signal using the gray scale correction curve.Type: GrantFiled: October 21, 2013Date of Patent: April 11, 2017Assignee: Mitsubishi Electric CorporationInventors: Yuka Tsuda, Nobuhiko Yamagishi, Toshiyuki Shimizu, Takashi Hatakenaka, Junko Shinohara, Hironobu Yasui, Tomonori Fukuta, Isao Otsuka, Yoshiaki Kato
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Patent number: 9449375Abstract: In an image processing apparatus, maximum values and minimum values of the classes of respective color components are calculated; the largest value among the maximum values of the color components is found as an all-color maximum value, color correction curves are generated, on the basis of the maximum and minimum values of the respective color components and the all-color maximum value, for color components other than the color component whose maximum value is equal to the all-color maximum value, and the color correction curves are used to perform corrections on the respective color components of the image signal. The color correction curves are generated for performing corrections such that, after the corrections, the maximum value of each color component is approximately equal to the all-color maximum value.Type: GrantFiled: October 23, 2013Date of Patent: September 20, 2016Assignee: Mitsubishi Electric CorporationInventors: Yuka Tsuda, Nobuhiko Yamagishi, Tomonori Fukuta, Isao Otsuka
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Publication number: 20160209927Abstract: A hand region is detected in a captured image, and for each part of the background area, a light source presence degree indicating the probability that a light source is present is determined according to the luminance or color of that part; on the basis of the light source presence degree, a region in which the captured image is affected by a light source is estimated, and if the captured image includes a region estimated to be affected by a light source, whether or not a dropout has occurred in the hand region in the captured image is decided; on the basis of the result of this decision, an action is determined. Gesture determinations can be made correctly even when the hand region in the captured image is affected by a light source at the time of gesture manipulation input.Type: ApplicationFiled: May 15, 2014Publication date: July 21, 2016Applicant: Mitsubishi Electric CorporationInventors: Nobuhiko YAMAGISHI, Yudai NAKAMURA, Tomonori FUKUTA
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Publication number: 20160132124Abstract: A hand region (Rh) of an operator is detected from a captured image, and positions of a palm center (Po) and a wrist center (Wo) are determined, and origin coordinates (Cho) and a direction of an coordinate axis (Chu) of a hand coordinate system are calculated. A shape of the hand in the hand region (Rh) is detected using the hand coordinate system, and a shape feature quantity (D14) of the hand is calculated. Further, a movement feature quantity (D15f) of a finger is calculated based on the shape feature quantity (D14) of the hand. Gesture determination is made based on the calculated feature quantities. Since the gesture determination is made taking into consideration the differences in the angle of the hand placed in the operation region, and the direction in which the hand is moved, misrecognition of the operation can be reduced.Type: ApplicationFiled: April 10, 2014Publication date: May 12, 2016Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Yudai NAKAMURA, Nobuhiko YAMAGISHI, Tomonori FUKUTA, Yoshiaki KUSUNOKI
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Publication number: 20150339808Abstract: In an image processing apparatus, maximum values and minimum values of the classes of respective color components are calculated; the largest value among the maximum values of the color components is found as an all-color maximum value, color correction curves are generated, on the basis of the maximum and minimum values of the respective color components and the all-color maximum value, for color components other than the color component whose maximum value is equal to the all-color maximum value, and the color correction curves are used to perform corrections on the respective color components of the image signal. The color correction curves are generated for performing corrections such that, after the corrections, the maximum value of each color component is approximately equal to the all-color maximum value.Type: ApplicationFiled: October 23, 2013Publication date: November 26, 2015Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Yuka TSUDA, Nobuhiko YAMAGISHI, Tomonori FUKUTA, Isao OTSUKA
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Publication number: 20150332444Abstract: An image processing device includes: a calculator that calculates a gray scale histogram for each color component of an image signal; a calculator that calculates, for each color component, a maximum and a minimum of classes having a frequency greater than zero in the gray scale histogram; a determiner that generates, for each color component, a histogram having classes each having an absolute difference value between the frequencies of adjacent classes in the gray scale histogram, and compares the absolute difference values in the histograms with a value to determine, from the presence or absence of an absolute difference value exceeding the value, an image type of the image; a generator that generates a gray scale correction curve from the calculated maximum and minimum for each color component; and a corrector that performs gray scale correction on the image signal using the gray scale correction curve.Type: ApplicationFiled: October 21, 2013Publication date: November 19, 2015Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Yuka TSUDA, Nobuhiko YAMAGISHI, Toshiyuki SHIMIZU, Takashi HATAKENAKA, Junko SHINOHARA, Hironobu YASUI, Tomonori FUKUTA, Isao OTSUKA, Yoshiaki KATO
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Patent number: 8954496Abstract: The image update timings of a plurality of display devices are adjusted by calculating, in their image reproduction/updating control means (7), the phase difference between a synchronization adjustment signal (SAS) created from synchronization adjustment data (SAD) received from the transmitting apparatus TA by a data reception means (6) and an image display control signal (HC) output to the image display means (8), and increasing or decreasing the period of the next and subsequent image display control signals (HC) according to the phase difference, thereby reducing the phase difference. Image updating in the plurality of display devices can be synchronized to within a fixed tolerance range.Type: GrantFiled: September 7, 2011Date of Patent: February 10, 2015Assignee: Mitsubishi Electric CorporationInventors: Junji Sukeno, Tomonori Fukuta, Osamu Nasu, Masahide Koike, Koji Minami
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Publication number: 20140149805Abstract: A slave device is equipped with: a parameter setting portion for setting different values according to the content of commands sent from a master device, as parameter values for detecting anomalies; and an anomaly detecting portion for detecting anomalies by comparing the time corresponding to a parameter value that has been set by the parameter setting portion and the measured time of a process carried out in response to a command.Type: ApplicationFiled: January 20, 2012Publication date: May 29, 2014Applicant: Mitsubishi Electric CorporationInventors: Satoshi Michihata, Kiyoyasu Maruyama, Satoko Miki, Tomonori Fukuta, Kazuhiro Tanaka
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Patent number: 8542283Abstract: Provision is made for obtaining a high-quality image with noise, such as ringing, reduced. An image processing device includes an image correction means for applying image-shake correction processing to an input image; a correction-image characteristic detection means for detecting a characteristic of a correction image obtained through the image-shake correction processing; a first characteristic-determination means for outputting selection information, based on a characteristic-detected correction image obtained through detection of the characteristic of the correction image; and an image outputting means for outputting the input image or the correction image, based on the selection information. As a result, it is made possible to obtain a high-quality image with noise reduced.Type: GrantFiled: September 14, 2012Date of Patent: September 24, 2013Assignee: Mitsubishi Electric CorporationInventors: Tomonori Fukuta, Junko Shinohara, Naoyuki Fujiyama, Yoshiko Hatano, Tetsuya Kuno
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Publication number: 20130159401Abstract: The image update timings of a plurality of display devices are adjusted by calculating, in their image reproduction/updating control means (7), the phase difference between a synchronization adjustment signal (SAS) created from synchronization adjustment data (SAD) received from the transmitting apparatus TA by a data reception means (6) and an image display control signal (HC) output to the image display means (8), and increasing or decreasing the period of the next and subsequent image display control signals (HC) according to the phase difference, thereby reducing the phase difference. Image updating in the plurality of display devices can be synchronized to within a fixed tolerance range.Type: ApplicationFiled: September 7, 2011Publication date: June 20, 2013Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Junji Sukeno, Tomonori Fukuta, Osamu Nasu, Masahide Koike, Koji Minami
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Publication number: 20130100346Abstract: A video processing device includes: a telop detector for detecting a telop area including a telop in an input sequence of video frames; an audio alert detector for detecting an audio alert from an input sequence of audio signals corresponding to the input sequence of video frames; and a video processor for replacing a telop area in the video frame in which the telop area is detected with an image derived from a video frame preceding the video frame in which the telop of the telop area initially appears in the input sequence of video frames, and outputting the video frame in which the telop area has been replaced. The video processor selectively replaces the telop area of a telop accompanied by an audio alert detected by the audio alert detector.Type: ApplicationFiled: September 14, 2012Publication date: April 25, 2013Inventors: Isao OTSUKA, Tomonori FUKUTA
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Publication number: 20130010142Abstract: Provision is made for obtaining a high-quality image with noise, such as ringing, reduced. An image processing device includes an image correction means for applying image-shake correction processing to an input image; a correction-image characteristic detection means for detecting a characteristic of a correction image obtained through the image-shake correction processing; a first characteristic-determination means for outputting selection information, based on a characteristic-detected correction image obtained through detection of the characteristic of the correction image; and an image outputting means for outputting the input image or the correction image, based on the selection information. As a result, it is made possible to obtain a high-quality image with noise reduced.Type: ApplicationFiled: September 14, 2012Publication date: January 10, 2013Inventors: Tomonori FUKUTA, Junko SHINOHARA, Naoyuki FUJIYAMA, Yoshiko HATANO, Tetsuya KUNO
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Patent number: 8319840Abstract: Provision is made for obtaining a high-quality image with noise, such as ringing, reduced. An image processing device includes an image correction means for applying image-shake correction processing to an input image; a correction-image characteristic detection means for detecting a characteristic of a correction image obtained through the image-shake correction processing; a first characteristic-determination means for outputting selection information, based on a characteristic-detected correction image obtained through detection of the characteristic of the correction image; and an image outputting means for outputting the input image or the correction image, based on the selection information. As a result, it is made possible to obtain a high-quality image with noise reduced.Type: GrantFiled: April 27, 2005Date of Patent: November 27, 2012Assignee: Mitsubishi Electric CorporationInventors: Tomonori Fukuta, Junko Shinohara, Naoyuki Fujiyama, Yoshiko Hatano, Tetsuya Kuno
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Publication number: 20120066277Abstract: A file management device manages a file on an online storage in a folder. The device includes a shared folder receiving unit to receive, form an information device used by a user having completed membership registration, designation of a shared folder to be shared with other users; a shared folder management information storage unit to generate shared folder management information in response to receipt of the designation of the shared folder and to store therein the shared folder management information so as to be associated with the designation of the shared folder; a folder share URL generation unit to generate a folder share uniform resource locator (URL) which includes the shared folder management information and is a URL of a Web site serving as an entry when accessing the shared folder; and a folder share URL notification unit to notify the information device of the folder share URL.Type: ApplicationFiled: September 14, 2011Publication date: March 15, 2012Inventors: Hidenao UBUKATA, Takahiro YAMAMOTO, Hiroshi YAMAMOTO, Tomonori FUKUTA, Yuichi INOUE, Tatsuo FUJIWARA
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Patent number: 8094715Abstract: Included are: a prefilter (101) for outputting, based on filter characteristics control data, predetermined frequency components in an input video signal as current image data; encoding means (116) for subjecting the current image data to an encoding process, and outputting encoding parameters together with a bit stream corresponding to current image data as a result of the encoding process; and filter control means (117) for outputting the filter characteristics control data that is set based only on one or two of the encoding parameters.Type: GrantFiled: December 25, 2003Date of Patent: January 10, 2012Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Tomonori Fukuta, Yoshiko Hatano