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IMAGE CAPTURE DEVICE AND IMAGE PROCESSING DEVICE

外国特許コード F190009698
整理番号 (S2017-0562-N0)
掲載日 2019年1月23日
出願国 世界知的所有権機関(WIPO)
国際出願番号 2018JP011153
国際公開番号 WO 2018180808
国際出願日 平成30年3月20日(2018.3.20)
国際公開日 平成30年10月4日(2018.10.4)
優先権データ
  • 特願2017-067131 (2017.3.30) JP
発明の名称 (英語) IMAGE CAPTURE DEVICE AND IMAGE PROCESSING DEVICE
発明の概要(英語) Provided are an image capture device with which three or more comparable subject images can be captured in a single image capture, and an image processing device which generates, on the basis of original image data created by the image capture device, spectroscopic image data comprising data of an image representing the intensity of light of a specific wavelength band. The image capture device 1 is provided with: an image capture unit 10 which includes a focusing element 11 for focusing subject light coming from a subject, and an image capture element 12 for creating original image data by capturing a subject image focused by the focusing element 11; and a reflection unit 20 including a plurality of mirrors 21 for reflecting the subject light and causing the subject light to enter the image capture unit 10. Each of the mirrors 21 of the reflection unit 20 includes a reflection surface 211 having disposed thereon an optical filter F for changing a wavelength characteristic of light reflected by the reflection surface 211, and is arranged such that the reflection surface 211 is parallel with respect to the optical axis of the focusing element 11.
従来技術、競合技術の概要(英語) BACKGROUND ART
In recent years, and the produce contained in the distribution of the amount of sugar content for the purpose of measuring, the hyperspectral camera is used.Is a typical hyperspectral camera, through the slit using a spectroscope and a one-dimensional position of the subject light, the light degradation of the wavelength in a direction perpendicular to the optical image of the converted two-dimensional, optical image captured by the two-dimensional image sensor according to the present invention.In the hyperspectral camera, spectrometer slits or the like of the optical system is driven while switching the imaging position to be repeatedly captured (scanned), each of the plurality of wavelength band can be a two-dimensional image.Also, instead of a spectrometer, a light source for irradiating a light onto the subject, is applied to the light source can be switched between the plurality of color filters, and, while switching the color filters in two-dimensional image is repeatedly captured, a plurality of wavelengths to obtain two-dimensional image of each band may be hyperspectral camera.
These hyperspectral camera such as in a conventional, two-dimensional image in the wavelength of the three-dimensional information a total of one-dimensional, two-dimensional image sensor an image taken on the relationship, in order to obtain all the information required for the imaging of a plurality of times.Therefore, the imaging time becomes longer a problem.In addition, in such a conventional hyperspectral camera, a color filter of the optical system requires a mechanism for switching, the configuration of the apparatus becomes complicated and large that there is a problem.
Therefore, in the Patent Document 1, the mirror and the optical filter, optical filter and the subject light passing through the optical filter does not pass through each of the subject light, imaged on the image pickup element can be at different positions, 1 times the wavelength characteristic by the imaging of two different 2 image of the subject to be imaged by the imaging device has been proposed.Specifically, this imaging device is, immediately before the lens, the lens interval becomes narrower as the upper left of (taper) 2 comprises two mirrors arranged.Thus, the optical axis of subject light incident on the lens from the left side, the optical axis from the right side of each of the subject light incident on the lens, different positions on the image pickup element are imaged.
  • 出願人(英語)
  • ※2012年7月以前掲載分については米国以外のすべての指定国
  • NATIONAL UNIVERSITY CORPORATION NARA INSTITUTE OF SCIENCE AND TECHNOLOGY
  • 発明者(英語)
  • TAKATANI, Tsuyoshi
  • AOTO, Takahito
  • MUKAIGAWA, Yasuhiro
国際特許分類(IPC)
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