On-vehicle image processing device for vehicular control

• US 8,526,681 B2
• Filed: 07/17/2008
• Issued: 09/03/2013
• Est. Priority Date: 07/17/2007
• Status: Expired due to Fees

• Current Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Original Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Inventors: Akutsu, Eisaku
• Primary Examiner(s): Mehta, Bhavesh
• Assistant Examiner(s): ANSARI, TAHMINA N
• Application Number:
  US12/601,389
• Publication Number:
  US 20100172547A1
• Time in Patent Office: 1,874 Days
• Field of Search: None
• US Class Current: 382/107
• CPC Class Codes: G06T 2207/10016 Video; Image sequence
• CPC Class Codes: G06T 2207/30252 Vehicle exterior; Vicinity of vehicle
• CPC Class Codes: G06T 7/248 involving reference images or patches

Abstract

An image processing device includes a first camera that captures the periphery of a vehicle, specific region extracting units that extract regions, each of which is closer to the edge of an image than to the center of the image, as specific regions, and a movement amount calculating unit that calculates the amount of movement of the vehicle on the basis of image information in a plurality of specific regions. Therefore, it is possible to process only the first specific region and the second specific region of the captured image and thus effectively perform image processing.

Claims

1. An on-vehicle image processing device comprising:

a first imaging unit that captures a periphery of a vehicle as image information;

a specific region extracting unit that extracts a plurality of specific regions each of which is closer to an edge of an image region composed of the image information than to a center of the image region;

a movement amount calculating unit that calculates an amount of movement of the vehicle on the basis of movement information of feature points in the plurality of specific regions;

a second imaging unit that has an angle of view less than that of the first imaging unit; and

a first image correcting unit that corrects an image captured by the second imaging unit on the basis of the amount of movement acquired by the movement amount acquiring unit.

2. The on-vehicle image processing device according to claim 1,

wherein, in left-hand traffic, the specific region extracting unit extracts an upper left region of the image region with respect to the center as a first specific region and a lower right region of the image region with respect to the center as a second specific region.

3. An on-vehicle image processing device comprising:

a first camera configured to capture a periphery of a vehicle as image information; and

an electronic control unit;

the electronic control unit configured to extract a plurality of specific regions each of which is closer to an edge of an image region composed of the image information than to a center of the image region;

the electronic control unit configured to calculate an amount of movement of the vehicle on the basis of movement information of feature points in the plurality of specific regions; and

a second camera that has an angle of view less than that of the first camera;

the electronic control unit further configured to correct an image captured by the second camera on the basis of the amount of movement acquired by the electronic control unit.

4. The on-vehicle image processing device according to claim 3,

wherein, in left-hand traffic, the electronic control unit is configured to extract an upper left region of the image region with respect to the center as a first specific region and a lower right region of the image region with respect to the center as a second specific region.

5. An on-vehicle image processing device comprising:

a first imaging unit that captures a single image that includes a periphery of a vehicle as image information;

a specific region extracting unit that extracts a plurality of specific regions each of which is closer to an edge of an image region composed of the image information than to a center of the image region;

a movement amount calculating unit that calculates an amount of movement of the vehicle on the basis of movement information of feature points in the plurality of specific regions;

a central region extracting unit that extracts a central region of the image region from the image region; and

a second image correcting unit that corrects the image of the central region extracted by the central region extracting unit on the basis of the amount of movement acquired by the movement amount acquiring unit.

6. An on-vehicle image processing device comprising:

a first camera configured to capture a single image that includes a periphery of a vehicle as image information; and

an electronic control unit;

the electronic control unit configured to extract a plurality of specific regions each of which is closer to an edge of an image region composed of the image information than to a center of the image region;

the electronic control unit configured to calculate an amount of movement of the vehicle on the basis of movement information of feature points in the plurality of specific regions;

the electronic control unit further configured to extract a central region of the image region from the image region; and

the electronic control unit configured to correct the image of the central region on the basis of the amount of movement acquired by the electronic control unit.

7. The on-vehicle image processing device according to claim 6,

wherein, in left-hand traffic, the specific region extracting unit extracts an upper left region of the image region with respect to the center as a first specific region and a lower right region of the image region with respect to the center as a second specific region.

8. The on-vehicle image processing device according to claim 6,

wherein, in left-hand traffic, the electronic control unit is configured to extract an upper left region of the image region with respect to the center as a first specific region and a lower right region of the image region with respect to the center as a second specific region.