Patents by Inventor Takanari Tanabata
Takanari Tanabata 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: 11941852Abstract: A three-dimensional measurement device includes an image data receiving unit, a camera position selecting unit, a stereoscopic image selecting unit, and a camera position calculator. The image data receiving unit receives data of multiple photographic images. The photographic images are obtained by photographing a measurement target object and a random dot pattern from multiple surrounding viewpoints by use of a camera. The camera position selecting unit selects camera positions from among multiple positions of the camera. The stereoscopic image selecting unit selects the photographic images as stereoscopic images from among the photographic images that are taken from the camera positions selected by the camera position selecting unit. The camera position calculator calculates the camera position from which the stereoscopic images are taken. The selection of the camera positions is performed multiple times in such a manner that at least one different camera position is selected each time.Type: GrantFiled: February 25, 2020Date of Patent: March 26, 2024Assignee: Kazusa DNA Research InstituteInventors: Atsushi Hayashi, Nobuo Kochi, Takanari Tanabata, Sachiko Isobe
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Publication number: 20220215585Abstract: A three-dimensional measurement device includes an image data receiving unit, a camera position selecting unit, a stereoscopic image selecting unit, and a camera position calculator. The image data receiving unit receives data of multiple photographic images. The photographic images are obtained by photographing a measurement target object and a random dot pattern from multiple surrounding viewpoints by use of a camera. The camera position selecting unit selects camera positions from among multiple positions of the camera. The stereoscopic image selecting unit selects the photographic images as stereoscopic images from among the photographic images that are taken from the camera positions selected by the camera position selecting unit. The camera position calculator calculates the camera position from which the stereoscopic images are taken. The selection of the camera positions is performed multiple times in such a manner that at least one different camera position is selected each time.Type: ApplicationFiled: February 25, 2020Publication date: July 7, 2022Applicant: Kazusa DNA Research InstituteInventors: Atsushi HAYASHI, Nobuo KOCHI, Takanari TANABATA, Sachiko ISOBE
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Patent number: 7499573Abstract: There are provided an image acquisition system capable of storing high-accuracy measurement of changes in the shape of a plant growing process in image information with high accuracy and an analyzing method for analyzing an acquired image to analyze plant growing. There is provided a plant growing analyzing system having operation detection means of a conveying mechanism of a plant in order that an observed plant in an image is photographed at a constantly fixed position or angle; a position detecting mark in the acquired image; a computation part for evaluating detected data to control a conveying amount; and a conveying control part, wherein the growing process of many plants is stored in image information in a long period, and the stored image is used to realize high-accuracy measurement.Type: GrantFiled: July 12, 2004Date of Patent: March 3, 2009Assignee: Hitachi, Ltd.Inventors: Takanari Tanabata, Tomoko Shinomura, Toru Ishizuka, Masafumi Kanetomo
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Publication number: 20090019095Abstract: A map data distribution system includes a server which distributes map data and a mobile terminal which receives the map data. The server stores, for each area, the difference data between pieces of map data obtained before and after updated, and sends the difference data of map data of an area requested by the mobile terminal to the mobile terminal. The mobile terminal includes a database for storing map data and an updated-data store part for storing updated map data, generates updated data by using the received difference data, stores the updated data in the updated-data store part and then in the database. To fetch map data while the updated data is being stored from the updated-data store part to the database, when the map data to be fetched is stored in the updated-data store part, the mobile terminal fetches the map data from the updated-data store part.Type: ApplicationFiled: July 8, 2008Publication date: January 15, 2009Inventors: Akinori Asahara, Kenji Naka, Michio Morioka, Hirokazu Inayoshi, Takanari Tanabata
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Patent number: 6937321Abstract: A distance measuring technology capable of stably and accurately performing distance measurement of an object without any highly accurate focus control mechanism is provided. A distance measuring apparatus has a mask for restricting light so as to pass through two or more different light passing positions; a lens system for focusing the light passed through the mask; an image taking-in means for taking in images from the light focused by the lens system; and a distance calculating means for calculating a distance from an imaging element to an object using the taken-in images. The mask restricts the light so as to pass through only specified positions.Type: GrantFiled: March 10, 2004Date of Patent: August 30, 2005Assignee: Hitachi, Ltd.Inventors: Takanari Tanabata, Keisuke Nakashima, Yoshiharu Konishi, Takashi Matsuyama
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Publication number: 20050180608Abstract: There are provided an image acquisition system capable of storing high-accuracy measurement of changes in the shape of a plant growing process in image information with high accuracy and an analyzing method for analyzing an acquired image to analyze plant growing. There is provided a plant growing analyzing system having operation detection means of a conveying mechanism of a plant in order that an observed plant in an image is photographed at a constantly fixed position or angle; a position detecting mark in the acquired image; a computation part for evaluating detected data to control a conveying amount; and a conveying control part, wherein the growing process of many plants is stored in image information in a long period, and the stored image is used to realize high-accuracy measurement.Type: ApplicationFiled: July 12, 2004Publication date: August 18, 2005Inventors: Takanari Tanabata, Tomoko Shinomura, Toru Ishizuka, Masafumi Kanetomo
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Publication number: 20050074144Abstract: An image processing method, a contactless image processing apparatus, and a storage medium which stores processes. The method includes the steps of reading an original by a graphics input unit in a contactless manner and outputting from the graphics input unit information as to the original, measuring a distance from the graphics input unit to the original at least on the basis of information as to vertexes which is derived from the information as to the original which has been read and outputted from the graphics input unit and correcting for the information as to the original outputted from the graphics input unit on the basis of the distance which is measured and the information as to the vertexes.Type: ApplicationFiled: November 26, 2004Publication date: April 7, 2005Inventors: Yuichi Abe, Keisuke Nakashima, Takanari Tanabata, Shinichi Shinoda, Yoshiharu Konishi
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Publication number: 20040174516Abstract: A distance measuring technology capable of stably and accurately performing distance measurement of an object without any highly accurate focus control mechanism is provided. A distance measuring apparatus has a mask for restricting light so as to pass through two or more different light passing positions; a lens system for focusing the light passed through the mask; an image taking-in means for taking in images from the light focused by the lens system; and a distance calculating means for calculating a distance from an imaging element to an object using the taken-in images. The mask restricts the light so as to pass through only specified positions.Type: ApplicationFiled: March 10, 2004Publication date: September 9, 2004Inventors: Takanari Tanabata, Keisuke Nakashima, Yoshiharu Konishi, Takashi Matsuyama
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Patent number: 6738131Abstract: A distance measuring technology is capable of stably and accurately performing measurement of the distance to the distance to an object without use of a highly accurate focus control mechanism. The distance measurement is performed by an apparatus having a mask for restricting light so as to pass light through two or more different light passing positions; a lens system for focusing the light that has passed through the mask; an image taking-in means for taking in images from the light focused by the lens system; and a distance calculating unit for calculating a distance from an imaging element to an object using the taken-in images. The mask restricts the light so that the light is able to pass through only specified positions.Type: GrantFiled: June 7, 2002Date of Patent: May 18, 2004Assignee: Hitachi, Ltd.Inventors: Takanari Tanabata, Keisuke Nakashima, Yoshiharu Konishi, Takashi Matsuyama
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Patent number: 6721465Abstract: A simple non-contact image reader of high degree of freedom comprising a reading unit for reading images, a reading condition changing unit for changing the reading conditions of the reading unit, a storage unit for storing two read images which are read under two different reading conditions changed, and an image correction unit for composing two read images stored and developing them on a plane, wherein characters written on the surface of a folded form or a thick book can be read in a good operability state and on a high image quality basis by reading images in non-contact.Type: GrantFiled: September 30, 1999Date of Patent: April 13, 2004Assignee: Hitachi, Ltd.Inventors: Keisuke Nakashima, Toshiaki Nakamura, Shinichi Shinoda, Yoshiharu Konishi, Mitsunari Kanou, Akihiro Kawaoka, Shunichi Enomoto, Hisao Ogata, Takanari Tanabata
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Publication number: 20030231354Abstract: An image input device comprises: a pixel shifting optical means that allows displacing an image-forming position on the image-pickup device of the incident light from the image-pickup optical system within one pixel to several pixels horizontally and vertically; an image pickup control means that controls pixel displacement conditions of the pixel shifting optical means; a resolution detection means that detects a resolution of an image on the basis of image information read by varying the pixel displacement conditions of the pixel shifting optical means; and a storage means that stores pixel information detected based on that the resolution is higher than a predetermined value, and/or information corresponding to a pixel position detected based on that the resolution is higher than the predetermined value.Type: ApplicationFiled: October 15, 2002Publication date: December 18, 2003Inventors: Shinichi Shinoda, Keisuke Nakashima, Takanari Tanabata, Yoshiharu Konishi
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Publication number: 20020196422Abstract: A distance measuring technology capable of stably and accurately performing distance measurement of an object without any highly accurate focus control mechanism is provided. A distance measuring apparatus has a mask for restricting light so as to pass through two or more different light passing positions; a lens system for focusing the light passed through the mask; an image taking-in means for taking in images from the light focused by the lens system; and a distance calculating means for calculating a distance from an imaging element to an object using the taken-in images. The mask restricts the light so as to pass through only specified positions.Type: ApplicationFiled: June 7, 2002Publication date: December 26, 2002Inventors: Takanari Tanabata, Keisuke Nakashima, Yoshiharu Konishi, Takashi Matsuyama
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Publication number: 20020090115Abstract: An image processing method of easily obtaining an image photographed from the front side even if an operation to read an image on the surface in a 3-dimensional shape such as folded slip or thick book is performed. An outline is obtained from original information read by a camera. Vertex information is detected from the outline information. A distance between the camera and the original is measured from the vertex information and known original shape information. A correction to develop the original information of the folded original into a plane on the basis of the distance information and the vertex information is made.Type: ApplicationFiled: March 2, 2001Publication date: July 11, 2002Inventors: Yuichi Abe, Keisuke Nakashima, Takanari Tanabata, Shinichi Shinoda, Yoshiharu Konishi