Patents by Inventor Katsuyuki Nakamura
Katsuyuki Nakamura 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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Publication number: 20160364620Abstract: An outside recognition system configured to include a camera installed on a vehicle, to analyze an image from the camera, and to recognize surroundings of the vehicle based on an analysis result of the image from the camera comprises a dirtiness detection unit which determines, as at least one reference line, at least one line on a part of at least one object that does not change in the image from the camera even if the vehicle travels, determines an observation line that corresponds to each of the at least one reference line with the image from the camera, calculates an amount by which the observation line is displaced from each of the at least one reference line, and detects whether dirt adheres to the camera based on the amount of displacement.Type: ApplicationFiled: January 30, 2015Publication date: December 15, 2016Inventors: Yasuhiro AKIYAMA, Katsuyuki NAKAMURA, Kota IRIE
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Publication number: 20160281911Abstract: A medical stand apparatus includes a cylindrical lower arm that accommodates an upper arm divided into sections, so that only the lower arm is visible from the outside and so that a drape can tightly be fastened to the lower arm. The upper arm sections are connected to each other through a shaft that is guided along an arc groove of a bracket. This configuration is beneficial to reduce a diameter of the lower arm when the upper and lower arms are curved.Type: ApplicationFiled: March 22, 2016Publication date: September 29, 2016Applicant: MITAKA KOHKI CO., LTD.Inventors: Masao DOI, Katsuyuki NAKAMURA
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Patent number: 9375837Abstract: When the compression spring is compressed due to the relative displacement of the stopper which occurs in response to the tilt angle of the arm structure, the compression spring is compressed by the small relative displacement of the stopper over its entire body in the longitudinal direction, so that a repulsive force is obtained which varies little over the entire range of the tilt angle, enabling support of the heavy object in a stable condition.Type: GrantFiled: February 26, 2014Date of Patent: June 28, 2016Assignee: MITAKA KOHKI CO., LTD.Inventor: Katsuyuki Nakamura
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Publication number: 20160165101Abstract: It is possible to consider an image as a composite wave that is the result of layering waves having differing periods and amplitudes. An image captured via a lens having a water droplet attached thereto has a higher occurrence of changes such as image blur than an image that does not have a water droplet attached thereto, which means that this type of change in an image results in changes in the composite wave thereof as well. Provided is a lens dirtiness detection device that suitably determines whether a lens is dirty without being affected by a background image by: focusing on the occurrence of large changes in the composite wave of an image that accompany an increase in the dirtiness of a camera lens; extracting each of the image frequency components that constitute the composite wave; and analyzing changes in the magnitude relation between the frequency components.Type: ApplicationFiled: June 5, 2014Publication date: June 9, 2016Applicant: Clarion Co., Ltd.Inventors: Yasuhiro AKIYAMA, Katsuyuki NAKAMURA, Kota IRIE
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Publication number: 20160098606Abstract: An approaching-object detection system detects an approaching object based on images captured by an imaging device. The approaching-object detection system comprises an extraction unit, a distortion correction unit, an object detection unit, and an approaching-object classification unit. The extraction unit extracts a partial image of one far side and a partial image of the other far side from each of the images. The distortion correction unit corrects distortion of the partial images. The object detection unit detects an object from the corrected partial images through pattern matching with reference to preinstalled image information on the object. The approaching-object classification unit classifies the detection result of the object detection unit as an approaching object or not.Type: ApplicationFiled: May 29, 2014Publication date: April 7, 2016Inventors: Katsuyuki NAKAMURA, Yasuhiro AKIYAMA, Kota IRIE
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Patent number: 9247252Abstract: In expansion and reduction of the size of a macroblock in a moving image encoding, a compression ratio falls because an information amount for describing size information of the macroblock increases. An image decoding device includes a CU dividing unit and a CU-size storing unit. The CU-size storing unit has stored therein size information of an encoded CU in an encoding target picture to be stored and size information of all CUs in preceding and following pictures used for prediction. The CU dividing unit predicts a CU size in an encoding target position using the CU size information stored in the CU-size storing unit and determines a CU size of a final encoding target CU.Type: GrantFiled: January 26, 2011Date of Patent: January 26, 2016Assignee: HITACHI, LTD.Inventors: Toru Yokoyama, Tomokazu Murakami, Katsuyuki Nakamura
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Publication number: 20150329083Abstract: An on-board device, that outputs a control signal to a cleaning control unit that controls accumulation removing units used to remove accumulations settled on a photographic lens in an on-board camera by adopting a plurality of methods, includes: an accumulation detection unit that detects an accumulation settled on the photographic lens from a photographic image output from the on-board camera when a vehicle speed input thereto is equal to or higher than a predetermined vehicle speed; a selection unit that selects an accumulation removing unit adopting a first method among the accumulation removing units adopting the plurality of methods; and a removal decision unit that makes a decision, based upon the photographic image, as to whether or not the accumulation has been removed from the photographic lens through a removal operation performed by the accumulation removing unit adopting the first method, which has been selected by the selection unit, wherein: if the removal decision unit decides that the accumulType: ApplicationFiled: July 3, 2013Publication date: November 19, 2015Inventors: Masahiro KIYOHARA, Kota IRIE, Katsuyuki NAKAMURA, Shoji MURAMATSU, Masayuki TAKEMURA, Osamu FUKATA, Yasuhisa HAYAKAWA
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Publication number: 20150301326Abstract: A surgical microscope system includes a camera that is rotatable around a first rotation axis and a second rotation axis, the rotation axes being orthogonal to each other, so that a photographing direction of the camera is changeable at a given position. The first rotation axis is inclined with respect to a vertical axis, and therefore, a lower end of a first member is able to be set at a height that does not interfere with the photographing direction when the camera is horizontally oriented.Type: ApplicationFiled: April 17, 2015Publication date: October 22, 2015Applicant: MITAKA KOHKI CO., LTD.Inventors: Masao DOI, Katsuyuki NAKAMURA
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Publication number: 20150220793Abstract: An image processing device includes: an image acquisition unit that obtains a photographic image of an area outside of a vehicle captured and output by a camera; a sun decision unit that calculates a sun position which indicates, at least, a solar elevation and makes a decision as to whether or not the solar elevation is equal to or lower than a predetermined elevation; an opacity detection unit that detects clouding of a lens surface of the camera; a vehicle detection unit that detects another vehicle, different from the vehicle, based upon image information of a first image area in the photographic image; and a control unit that suspends detection of the other vehicle by the vehicle detection unit if the opacity detection unit detects opacity in, at least, the first image area and the sun decision unit decides that the solar elevation is equal to or lower than the predetermined elevation.Type: ApplicationFiled: July 22, 2013Publication date: August 6, 2015Applicants: Clarion Co., Ltd., Nissan Motor Co., Ltd.Inventors: Masahiro Kiyohara, Katsuyuki Nakamura, Masayuki Takemura, Kota Irie, Yasuhisa Hayakawa, Osamu Fukata
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Publication number: 20150169967Abstract: It is provided a state recognition system configured to recognize a state of a traveling road on which a vehicle travels, the state recognition system being configured to: select a substance adhered on a lens of a camera mounted on the vehicle in an image captured by the camera; and determine whether the traveling road is on-road or off-road by determining a type and an amount of the selected adhered substance.Type: ApplicationFiled: July 3, 2013Publication date: June 18, 2015Inventors: Katsuyuki Nakamura, Kota Irie, Masahiro Kiyohara, Osamu Fukata, Yasuhisa Hayakawa
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Patent number: 8948257Abstract: A technique for improving a compression rate without needing new determination information (encoding flag information) is provided. For compression of each area to be encoded, based on a skip mode (a process which does not compress information of the area to be encoded, but copies previous information of the area to be encoded), it is determined whether an existing predicted image generated by an existing encoding standard is used, or an interpolation predicted image newly generated by executing move searching between decoded images is used.Type: GrantFiled: September 30, 2010Date of Patent: February 3, 2015Assignee: Hitachi Maxell, Ltd.Inventors: Yuto Komatsu, Toru Yokoyama, Tomokazu Murakami, Shohei Saito, Katsuyuki Nakamura
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Patent number: 8903603Abstract: An environment recognizing device for a vehicle is provided that can correctly detect a preceding vehicle in a scene, such as for instance the dusk, which is under an illumination condition different from that in the daytime. The device detects a vehicle external shape while detecting vehicle taillights, and determines a region in which the vehicle external shape and the vehicle taillights move in synchronization, as a vehicle.Type: GrantFiled: July 10, 2012Date of Patent: December 2, 2014Assignee: Clarion Co., Ltd.Inventors: Takehito Ogata, Shoji Muramatsu, Takashi Tsutsui, Katsuyuki Nakamura, Mitsutoshi Morinaga
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Publication number: 20140293408Abstract: An auxiliary arm attaching structure of a stand apparatus 1 includes a front member 3 that is attached to a support arm 2 of the stand apparatus and has a projection 6. The projection projects in a direction different from a longitudinal direction of the support arm and supports an auxiliary arm 8. Supported with the projection, the auxiliary arm is turnable so that an electronic image display unit 9 attached to a front end of the auxiliary arm is turnable to any position around a surgical microscope 4 supported with the front member.Type: ApplicationFiled: March 28, 2014Publication date: October 2, 2014Applicant: MITAKA KOHKI CO., LTD.Inventors: Katsuyuki NAKAMURA, Masao DOI, Katsushige NAKAMURA
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Publication number: 20140245855Abstract: When the compression spring is compressed due to the relative displacement of the stopper which occurs in response to the tilt angle of the arm structure, the compression spring is compressed by the small relative displacement of the stopper over its entire body in the longitudinal direction, so that a repulsive force is obtained which varies little over the entire range of the tilt angle, enabling support of the heavy object in a stable condition.Type: ApplicationFiled: February 26, 2014Publication date: September 4, 2014Applicant: MITAKA KOHKI CO., LTD.Inventor: Katsuyuki NAKAMURA
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Publication number: 20140240832Abstract: A microdrape 10 covers a surgical microscope system 60 including a surgical microscope 61 and a pair of binoculars 62 independently supported by an arm structure 64. The microdrape 10 has an opening end 6 and a closed end opposite to the opening end 6. The microdrape 10 includes: a cylindrical bag shaped main body 10a having the opening end 6; a first cylindrical bag 1 connected to the main body, 10a wherein the first cylindrical bag 1 has a hood for covering a lens tube of an objective lens 61a of the surgical microscope 61 and projecting portions 9a, 9b for covering lens tubes of eyeglasses 61b of the surgical microscope 61; and a second cylindrical bag 2 connected to the main body 10a, where the second cylindrical bag 2 has projecting portions 9c, 9d for covering lens tubes of eyeglasses 62a of the binoculars 62. A slit 5 is formed between the first cylindrical bag 1 and the second cylindrical bag 2.Type: ApplicationFiled: February 25, 2014Publication date: August 28, 2014Applicants: FUJI SYSTEMS CORPORATION, MITAKA KOHKI CO., LTD.Inventors: Katsushige NAKAMURA, Katsuyuki NAKAMURA, Hiroki SUGAIZUMI
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Publication number: 20140211304Abstract: A surgical microscope system includes a camera 20. The camera 20 includes CCDs 21 and a focusing mechanism (41, 42, 43). If an image displayed on an electronic image display unit 5 is unclear due to a focusing error, the focusing mechanism is operated to focus the image and make the image clearly visible. Without regard to a focusing operation conducted by a doctor D1 on a surgical microscope 4, an assistant D2 on the electronic image display unit is able to manipulate the focusing mechanism and observe clear images on the electronic image display unit.Type: ApplicationFiled: January 28, 2014Publication date: July 31, 2014Applicant: MITAKA KOHKI CO., LTD.Inventors: Katsuyuki NAKAMURA, Masao DOI, Katsushige NAKAMURA
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Publication number: 20140139916Abstract: An electronic image display apparatus has a casing. The casing incorporates objective optical systems and imaging optical systems to form primary images that are observed through eyepiece optical systems. With this configuration, the display apparatus is able to provide images that are observable naturally like images provided by a surgical microscope, thereby improving an observation performance and causing no fatigue on an observer even after a long time of observation.Type: ApplicationFiled: November 19, 2013Publication date: May 22, 2014Applicant: MITAKA KOHKI CO., LTD.Inventors: Masao DOI, Toshio YAMAZAKI, Katsuyuki NAKAMURA
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Publication number: 20140009615Abstract: An in-vehicle apparatus includes: a camera with a shielded area formed within a photographing area thereof by a light shielding member, which outputs a photographic image of an area surrounding a vehicle photographed through a photographic lens; and an adhering matter detection unit that detects adhering matter settled on the photographic lens based upon images in the shielded area included in a plurality of photographic images output from the camera at different time points.Type: ApplicationFiled: June 28, 2013Publication date: January 9, 2014Inventors: Masahiro KIYOHARA, Kota IRIE, Masayuki TAKEMURA, Katsuyuki NAKAMURA
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Publication number: 20140009616Abstract: A diagnosis device of a dirt removal device for removing dirt of a vehicle mounted camera, including a characteristic quantity extraction part that extracts a characteristic quantity of the image of a particular area photographed by the vehicle mounted camera, a change determination part that determines a degree of changes through time series of the extracted characteristic quantity and a diagnosis part that diagnoses whether the dirt removal device of the vehicle mounted camera is operating normally or abnormally, when the dirt removal device implements a dirt removal operation of the lens surface, based on whether operating signals outputted are inputted and whether the degree of changes of the characteristic quantity inputted from the changes determination part is below or above a set threshold value.Type: ApplicationFiled: July 1, 2013Publication date: January 9, 2014Inventors: Katsuyuki NAKAMURA, Kota IRIE, Masahiro KIYOHARA
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Publication number: 20130251038Abstract: In expansion and reduction of the size of a macroblock in a moving image encoding, a compression ratio falls because an information amount for describing size information of the macroblock increases. An image decoding device includes a CU dividing unit and a CU-size storing unit. The CU-size storing unit has stored therein size information of an encoded CU in an encoding target picture to be stored and size information of all CUs in preceding and following pictures used for prediction. The CU dividing unit predicts a CU size in an encoding target position using the CU size information stored in the CU-size storing unit and determines a CU size of a final encoding target CU.Type: ApplicationFiled: January 26, 2011Publication date: September 26, 2013Applicant: Hitachi, Ltd.Inventors: Toru Yokoyama, Tomokazu Murakami, Katsuyuki Nakamura