OBJECT DETECTION SYSTEM

• US 20150092988A1
• Filed: 11/05/2012
• Published: 04/02/2015
• Est. Priority Date: 11/30/2011
• Status: Active Grant

• Current Assignee: Hitachi Astemo Ltd. (Hitachi, Ltd.)
• Original Assignee: Hitachi Automotive Systems Limited (Hitachi, Ltd.)
• Inventors: Mitoma, Hiroto, Kato, Seiya
• Granted Patent: US 9,734,415 B2
• Time in Patent Office: Days
• US Class Current: 382/104
• CPC Class Codes: B60R 2300/105 using multiple cameras
• CPC Class Codes: B60R 2300/107 using stereoscopic cameras
• CPC Class Codes: B60R 2300/8093 for obstacle warning
• CPC Class Codes: G01C 3/085 with electronic parallax measurement
• CPC Class Codes: G06V 20/58 Recognition of moving objects or obstacles, e.g. vehicles or pedestrians; Recognition of traffic objects, e.g. traffic signs, traffic lights or roads
• CPC Class Codes: G08G 1/166 for active traffic, e.g. moving vehicles, pedestrians, bikes

Abstract

An object detection system including multiple detecting means identifies other-vehicle information data acquired by using the multiple detecting means, determines whether or not the other-vehicle information data acquired by using the multiple detecting means 105 and 107 are of the same vehicle to output the other-vehicle information data that can be applied to various control applications when the other-vehicle information data determined to be of the same vehicle are switched, selects either of the multiple other-vehicle information data determined to be of the same vehicle according to the other-vehicle information detecting accuracies of the detecting means 105 and 107, and switches the selected other-vehicle information data to another other-vehicle information in a transition period based on the relative speed and the relative position from the other vehicle.

Claims

1-4. -4. (canceled)

5. An object detection system comprising:

other-vehicle information acquiring means including multiple detecting means and being configured to acquire multiple other-vehicle information data by using the multiple detecting means;

identifying means configured to identify the multiple other-vehicle information data acquired by the different detecting means of the other-vehicle information acquiring means according to a predetermined identification condition; and

information selecting means configured to select either of the multiple other-vehicle information data determined to be of the same vehicle by the identifying means according to other-vehicle information detecting accuracies of the detecting means, wherein

the information selecting means switches the other-vehicle information data to another other-vehicle information data determined to be of the same vehicle by the identifying means in a transition period based on a relative speed and a relative distance from the other vehicle, and

the transition period based on the relative speed and the relative distance from the other vehicle is a period based on a time to collision obtained by dividing the relative distance by the relative speed.

6. The object detection system according to claim 5, wherein the identifying means changes the identification condition according to the relative speed and/or the relative distance from the other vehicle.

7. The object detection system according to claim 5, wherein the multiple detecting means at least include a mono camera and a stereo camera.

8. The object detection system according to claim 6, wherein the multiple detecting means at least include a mono camera and a stereo camera.