IMAGE PROCESSING DEVICE

• US 20110135159A1
• Filed: 07/30/2009
• Published: 06/09/2011
• Est. Priority Date: 08/01/2008
• Status: Active Grant

• Current Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Original Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Inventors: Uchida, Naohide
• Granted Patent: US 8,670,590 B2
• Time in Patent Office: Days
• US Class Current: 382/107
• CPC Class Codes: G06T 2207/10016 Video; Image sequence
• CPC Class Codes: G06T 2207/20012 Locally adaptive
• CPC Class Codes: G06T 2207/30236 Traffic on road, railway or crossing
• CPC Class Codes: G06T 7/269 using gradient-based methods

Abstract

An image processing device for improving the accuracy of optical flow calculation when an optical flow is calculated in a window unit. An image processing device for calculating an optical flow on the basis of image information within a window for a processing target using a plurality of images captured at different times includes position acquisition means which acquires position information of the processing target and setting means which sets a size of a window for calculating an optical flow on the basis of the position information acquired by the position acquisition means.

Claims

1. An image processing device for calculating an optical flow on the basis of image information within a window for a processing target using a plurality of images captured at different times, comprising:

position acquisition means which acquires position information of the processing target; and

setting means which sets a size of a window for calculating an optical flow on the basis of the position information acquired by the position acquisition means.

2. The image processing device of claim 1, wherein the setting means increases the window size as a lateral position difference between an image capture position and the processing target becomes large.

3. The image processing device of claim 1, wherein the position acquisition means is a radar, and

sets the processing target on the basis of a detection result of the radar.

4. The image processing device of claim 2, wherein the position acquisition means is a radar, and

sets the processing target on the basis of a detection result of the radar.