ON-VEHICLE IMAGE PROCESSING DEVICE

• US 20100172547A1
• Filed: 07/17/2008
• Published: 07/08/2010
• Est. Priority Date: 07/17/2007
• Status: Active Grant

• Current Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Original Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Inventors: Akutsu, Eisaku
• Granted Patent: US 8,526,681 B2
• Time in Patent Office: Days
• 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

1-4. -4. (canceled)

5. An on-vehicle image processing device comprising:

a first imaging unit that captures the 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 the edge of an image region composed of the image information than to the center of the image region; and

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

6. The on-vehicle image processing device according to claim 5,

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.

7. The on-vehicle image processing device according to claim 5, further comprising:

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.

8. The on-vehicle image processing device according to claim 5, further comprising:

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.