# US 10,771,672 B2 · Detachable-head-type camera and work machine

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- Number: US 10,771,672 B2
- Document ID: US10771672B2
- Status: Granted
- Kind: B2
- Application number: 16/317,109
- Filed: 2016-08-02
- Published: 2019-08-08
- Granted: 2020-09-08
- Earliest claimed: 2016-08-02
- Assignees: Fuji Corporation
- Applicants: Fuji Corporation
- Inventors: Kosuke Tsuchida; Nobuo Nagasaka; Hidekazu Kanai; Kenji Watanabe
- Web page: https://patentgrep.com/patent/US10771672B2

## CPC

- H04N 23/663: for controlling interchangeable camera parts based on electronic image sensor signals
- H05K 13/0812: {the monitoring devices being integrated in the mounting machine, e.g. for monitoring components, leads, component placement}
- H04N 7/0135: {involving interpolation processes (interpolation-based image scaling G06T3/4007; interpolation for video coding H04N19/587, H04N19/59)}
- H04N 23/00: Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N 23/55: Optical parts specially adapted for electronic image sensors; Mounting thereof
- H04N 23/66: Remote control of cameras or camera parts, e.g. by remote control devices
- H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION
- H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS

## Abstract

The present invention provides a detachable-head-type camera which, when a camera head unit is exchanged, can perform correction processing with a unique value corresponding to a camera head unit after the exchange, and provides a work machine including the detachable-head-type camera. Camera head unit of detachable-head-type camera is detachably connected to image data generation section via dedicated cable. In non-volatile memory of camera head unit, unique value corresponding to the characteristics unique to at least one of imaging element or lens is stored. Unique value is used for correction processing of image data performed by at least one of image data generation section or image processing unit.

## Claims

### Claim 1

A detachable-head-type camera, comprising:
a camera head unit including an imaging element, a lens configured to cause light from outside to form an image on the imaging element, and a first storage device configured to store a unique value corresponding to characteristics of at least one of the imaging element or the lens;
a connection member, being connected to the camera head unit, which is configured to transmit pixel data that is photoelectrically converted by the imaging element; and
an image data generation section, being detachably connected to the camera head unit via the connection member, which is configured to acquire the unique value from the first storage device, configured to generate image data to be subjected to the image processing in an image processing unit from the pixel data input from the imaging element via the connection member, the image processing unit being connected to the image data generation section via a camera cable to perform image processing, and configured to output the image data to the image processing unit via the camera cable, wherein
the unique value is used for correction processing on the image data performed in at least one of the image data generation section or the image processing unit, and
in response to a request from the image processing unit, the image data generation section is configured to output the unique value corresponding to the request to the image processing unit via the camera cable.

### Claim 2 (depends on 1)

The detachable-head-type camera according to claim 1, wherein
the image data generation section further includes a second storage device, and the detachable-head-type camera is configured to acquire the unique value from the first storage device when the camera head unit is activated and store the acquired unique value in the second storage device.

### Claim 3 (depends on 1)

The detachable-head-type camera according to claim 1, wherein
the first storage device is configured to store at least one of defective pixel information or line correction information as the unique value of the imaging element.

### Claim 4 (depends on 1)

The detachable-head-type camera according to claim 1, wherein
the first storage device is configured to store at least one of lens distortion correction information or optical axis deviation information as the unique value of the lens.

### Claim 5 (depends on 1)

A work machine, comprising
the detachable-head-type camera according to claim 1, wherein the work machine is configured to perform control based on the image data output from the detachable-head-type camera.