Image pickup device

Patent metadata

Field	Value
Publication number	US-9541495-B2
Application number	US-201214347389-A
Country	US
Kind code	B2
Filing date	Sep 20, 2012
Priority date	Sep 28, 2011
Publication date	Jan 10, 2017
Grant date	Jan 10, 2017

Abstract

An image pickup device, which comprises an optical characteristics changing unit ( 15 ), an optical system ( 45 ) containing an objective lens ( 47 ) and for leading a light from the objective lens to the optical characteristics changing unit, and an image pickup element ( 52 ) for receiving a light via the optical characteristics changing unit, wherein the optical characteristics changing unit has two or more dividing units, and has a configuration where one of the dividing units is selectively disposed along an optical path, and the dividing unit has a first region to select a specific wavelength from the light coming from the optical system and a second region where optical characteristics of the light from the optical system are not changed.

First claim

The invention claimed is:

1. An image pickup device, comprising an optical characteristics changing unit, an optical system containing an objective lens and for leading a light from said objective lens to said optical characteristics changing unit, and one image pickup element for receiving a light via said optical characteristics changing unit, wherein said optical characteristics changing unit has two or more dividing units, and has a configuration where one of the dividing units is selectively disposed along an optical path, and each of said dividing units has a first region to select a specific wavelength from the light coming from said optical system and a second region where optical characteristics of the light from said optical system are not changed,
wherein a part of said light and another part of said light pass through said first region and said second region respectively at the same time, wherein said image pickup element receives a light passing through said first region and a light passing through said second region at the same time and said image pickup element acquires an image which includes an optical spectral image part with a specific wavelength and an image part with no changing optical characteristics.

2. An image pickup device according to claim 1 , further comprising an image pickup control device, wherein based on image matching of an image part taken via said second region of one dividing unit and an image part taken via said second region of another dividing unit, an optical spectral synthesized image is prepared by synthesizing an optical spectral image part taken via said first region of one dividing unit with an optical spectral image part taken via said first region of another dividing unit.

3. An image pickup device according to claim 1 , further comprising an aperture disposed along an optical path, wherein said aperture has an aperture orifice, and wavelength to be selected by said optical characteristics changing unit can be changed by moving said aperture.

4. An image pickup device according to claim 1 , wherein said optical characteristics changing unit further comprises a still another dividing unit not to change optical characteristics of said first region and said second region.

5. An image pickup device according to claim 4 , wherein, based on image matching of an image taken via said second region of two or more dividing units and a still image taken via said still another dividing unit, said image pickup control device synthesizes image parts taken via said first regions of two or more dividing units and said still image and prepares a hyper-spectral image.

6. An image pickup device according to claim 5 , further comprising a GPS device for carrying out measurement of geocentric coordinates, wherein said image pickup control device acquires a still image via said still another dividing unit at a first point, extracts two or more feature points from the still image at the first point, acquires a video image containing a frame image continuous in time series via said still another dividing unit during the moving from the first point to the second point, and further performs video image tracking by a video image moving from the first point to the second point, acquires a still image via said still another dividing unit at the second point, specifies said feature point on the still image at the second point, carries out stereo-matching of the still image at the first point and the still image at the second point based on said feature point, prepares a three-dimensional model based on positions in an geocentric coordinate system of the first point and the second point measured by said GPS device, and said image pickup control device prepares a four-dimensional model having three-dimensional position data and optical spectrum information by synthesizing said optical spectral synthesized image and said three-dimensional model.

7. An image pickup device according to claim 2 , further comprising an aperture disposed along an optical path, wherein said aperture has an aperture orifice, and wavelength to be selected by said optical characteristics changing unit can be changed by moving said aperture.

8. An image pickup device according to claim 2 , wherein said optical characteristics changing unit further comprises a still another dividing unit not to change optical characteristics of said first region and said second region.

9. An image pickup device according to claim 3 , wherein said optical characteristics changing unit further comprises a still another dividing unit not to change optical characteristics of said first region and said second region.

10. An image pickup device according to claim 7 , wherein said optical characteristics changing unit further comprises a still another dividing unit not to change optical characteristics of said first region and said second region.

11. An image pickup device according to claim 8 , wherein, based on image matching of an image taken via said second region of two or more dividing units and a still image taken via said still another dividing unit, said image pickup control device synthesizes image parts taken via said first regions of two or more dividing units and said still image and prepares a hyper-spectral image.

12. An image pickup device according to claim 9 , wherein, based on image matching of an image taken via said second region of two or more dividing units and a still image taken via said still another dividing unit, said image pickup control device synthesizes image parts taken via said first regions of two or more dividing units and said still image and prepares a hyper-spectral image.

13. An image pickup device according to claim 10 , wherein, based on image matching of an image taken via said second region of two or more dividing units and a still image taken via said still another dividing unit, said image pickup control device synthesizes image parts taken via said first regions of two or more dividing units and said still image and prepares a hyper-spectral image.

14. An image pickup device according to claim 11 , further comprising a GPS device for carrying out measurement of geocentric coordinates, wherein said image pickup control device acquires a still image via said still another dividing unit at a first point, extracts two or more feature points from the still image at the first point, acquires a video image containing a frame image continuous in time series via said still another dividing unit during the moving from the first point to the second point, and further performs video image tracking by a video image moving from the first point to the second point, acquires a still image via said still another dividing unit at the second point, specifies said feature point on the still image at the second point, carries out stereo-matching of the still image at the first point and the still image at the second point based on said feature point, prepares a three-dimensional model based on positions in an geocentric coordinate system of the first point and the second point measured by said GPS device, and said image pickup control device prepares a four-dimensional model having three-dimensional position data and optical spectrum information by synthesizing said optical spectral synthesized image and said three-dimensional model.

15. An image pickup device according to claim 12 , further comprising a GPS device for carrying out measurement of geocentric coordinates, wherein said image pickup control device acquires a still image via said still another dividing unit at a first point, extracts two or more feature points from the still image at t

Assignees

• Kk Topcon

Inventors

• Ohtomo Fumio
• Otani Hitoshi
• Momiuchi Masayuki
• Osaragi Kazuki

Classifications

• H04N23/60

  Control of cameras or camera modules · CPC title

• H04N5/332

  Electricity · mapped topic

• G02B26/08

  for controlling the direction of light (in light guides G02B6/35) · CPC title

• G01J3/32

  Investigating bands of a spectrum in sequence by a single detector · CPC title

• H04N9/045

  Electricity · mapped topic