Image capture device and method for recognizing irradiated position mark on object

Patent metadata

Field	Value
Publication number	US-9794520-B2
Application number	US-201214425275-A
Country	US
Kind code	B2
Filing date	Sep 5, 2012
Priority date	Sep 5, 2012
Publication date	Oct 17, 2017
Grant date	Oct 17, 2017

Abstract

A mark irradiation unit ( 130 ) irradiates an object with a mark. An image capture unit ( 140 ) captures an image of the object, and generates image data. Then, an image capture area data generation unit recognizes a position of the mark in the object, and cuts out image capture area data which is apart of the image data on the basis of the mark. For this reason, the mark irradiation unit ( 130 ) irradiates the object with the mark, and thus even when a positioning symbol is not printed on the object to be stored as the image data, only a necessary portion in the image data is cut out.

First claim

The invention claimed is:

1. An image capture device, comprising:
a mark irradiation unit which irradiates an object with a mark;
an image capture unit which captures an image of the object and generates image data;
an image capture area data generation unit which recognizes a position of the mark in the image data, and cuts out image capture area data which is a part of the image data based on the position of the mark;
a control unit which controls an irradiation angle of the mark by using a direction of the object when based on the image capture unit, and a distance from the object to the image capture unit;
a holding member which holds the image capture unit;
a guide member to which the holding member is attached to be movable and rotatable;
a pedestal to which the guide member is attached;
an angle detection unit which detects an angle of the holding member with respect to the guide member; and
a position detection unit which detects a position of the holding member in the guide member,
wherein the control unit calculates the direction of the object when based on the image capture unit by using a detection result of the angle detection unit, and calculates a distance of the image capture unit with respect to the object by using a detection result of the position detection unit,
wherein the image capture area data generation unit calculates the position of the mark in the image data based on a field angle of the image capture unit, an irradiation direction of the mark irradiation unit, and a distance from the object to the image capture unit and the mark irradiation unit.

2. The image capture device according to claim 1 , wherein the image capture area data generation unit corrects a distortion of the image capture area data based on the position of the mark in the image capture area data or a shape of the mark.

3. The image capture device according to claim 1 , wherein the image capture area data generation unit stores correction parameters for correcting a distortion of the image capture area data due to an individual difference in at least one of the image capture unit and the mark irradiation unit, and corrects the image capture area data by using the correction parameters.

4. The image capture device according to claim 1 , further comprising:
an illumination unit which irradiates the object with illumination light.

5. The image capture device according to claim 4 , wherein the illumination unit emits a plurality of colors of light as the illumination light.

6. The image capture device according to claim 5 , further comprising:
an illumination control unit which controls intensities of the plurality of colors of light independently of each other,
wherein the image capture area data generation unit receives illumination parameters indicating each intensity of the plurality of colors of light from the illumination control unit, and corrects the image capture area data by using the illumination parameters.

7. The image capture device according to claim 4 , wherein the mark irradiation unit irradiates a region corresponding to the image capture area data in the object with character information when the image capture unit generates the image data, and
the character information indicates illumination parameters used for controlling the illumination unit.

8. The image capture device according to claim 1 , wherein the mark irradiation unit irradiates a region corresponding to the image capture area data in the object with character information when the image capture unit generates the image data.

9. An image processing method, comprising:
capturing, by an image capture unit, an image of an object and generating image data in a state in which the object is irradiated with a mark by a mark irradiation unit;
recognizing a position of the mark in the image data and cutting out image capture area data which is a part of the image data on the basis of the mark by using a computer;
controlling an irradiation angle of the mark by using a direction of the object when based on the capturing, and a distance from the object to the image capture unit, wherein a holding member holds the image capture unit, a guide member is attached to the holding member to be movable and rotatable, and a pedestal is attached to the guide member;
detecting an angle of the holding member with respect to the guide member; and
detecting a position of the holding member in the guide member,
wherein the direction of the object, when based on the image capture unit, is calculated by using a detection result of the detecting the angle, and a distance of the image capture unit with respect to the object is calculated by using a detection result of the detecting the position, and
wherein the position of the mark in the image data is calculated based on a field angle of the image capture unit, an irradiation direction of the mark irradiation unit, and a distance from the object to the image capture unit and the mark irradiation unit.

Assignees

• Kuroda Kazuo
• Yoshida Ayako
• Pioneer Corp

Inventors

• Kuroda Kazuo
• Yoshida Ayako

Classifications

• H04N1/19594 Primary

  using a television camera or a still video camera · CPC title

• H04N7/18 Primary

  Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast · CPC title

• H04N23/60

  Control of cameras or camera modules · CPC title

• H04N25/60

  Noise processing, e.g. detecting, correcting, reducing or removing noise · CPC title

• H04N23/50

  Constructional details · CPC title