Object detection device, object detection server, and object detection method

• US 20040211883A1
• Filed: 02/12/2004
• Published: 10/28/2004
• Est. Priority Date: 04/25/2002
• Status: Active Grant

• Current Assignee: Matsushita Electric Industrial Company Limited (Panasonic Holdings Corporation)
• Original Assignee: Matsushita Electric Industrial Company Limited (Panasonic Holdings Corporation)
• Inventors: Imagawa, Taro, Nakagawa, Masamichi, Azuma, Takeo, Okamoto, Shusaku
• Granted Patent: US 7,180,050 B2
• Time in Patent Office: Days
• US Class Current: 250/208.1
• CPC Class Codes: G01S 11/14 using ultrasonic, sonic, or infrasonic waves
• CPC Class Codes: G06T 7/74 involving reference images or patches
• CPC Class Codes: G06V 40/10 Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
• CPC Class Codes: G07C 9/00 Individual registration on entry or exit
• CPC Class Codes: H04N 7/183 for receiving images from a single remote source

Abstract

A tag communication section (12) receives tag information transmitted from an information tag (11) attached to a person (P) to be detected. An attribute lookup section (15) looks up an attribute storage section (16) using ID included in the tag information to obtain attribute information such as the height of the person (P). A target detection section (14) specifies the position, posture and the like of the person (P) in an image obtained from an imaging section (13) using the attribute information.

Claims

1. An object detection equipment comprising:

an imaging section for taking an image;

a tag communication section for receiving tag information transmitted from an information tag attached to a given target; and

a target detection section for detecting the given target in the image taken by the imaging section using the tag information received by the tag communication section.

2. The object detection equipment of claim 1, wherein the tag information includes attribute information representing an attribute of the given target, and

the target detection section performs the detection using the attribute information included in the tag information received by the tag communication section.

3. The object detection equipment of claim 1, wherein the tag information includes ID information of the given target,

the object detection equipment further comprises:

an attribute storage section for storing a correspondence between ID information and attribute information; and

an attribute lookup section for looking up contents of the attribute storage section using the ID information included in the tag information received by the tag communication, to obtain attribute information of the given target, and

the target detection section performs the detection using the attribute information obtained by the attribute lookup section.

4. The object detection equipment of claim 2 or 3, wherein the target detection section comprises:

an image segmentation portion for determining a partial image area having the possibility of including the given target in the image; and

an image recognition portion for detecting the given target in the partial image area determined by the image segmentation portion, and

at least one of the image segmentation portion and the image recognition portion performs processing by referring to the attribute information.

5. The object detection equipment of claim 1, wherein the tag information includes position information representing a position of the information tag, and

the target detection section performs the detection by referring to the position information included in the tag information received by the tag communication section.

6. The object detection equipment of claim 1, wherein the tag communication section estimates a position of the information tag from a state of reception of the tag information, and

the target detection section performs the detection by referring to the position estimated by the tag communication section.

7. The object detection equipment of claim 1, wherein the tag information includes a detection procedure for the given target, and

the target detection section performs the detection by executing the detection procedure included in the tag information received by the tag communication section.

8. The object detection equipment of claim 1, wherein the target detection section performs the detection with only image processing without use of the tag information when a reception state of the tag communication section is bad.

9. An object detection server for receiving an image taken by an imaging section and tag information transmitted from an information tag attached to a given target, and

detecting the given target in the image using the tag information.

10. An object detection method comprising the steps of:

receiving an image taken by an imaging section;

receiving tag information transmitted from an information tag attached to a given target; and

detecting the given target in the image using the tag information.