Image pickup information recognition system

• US 7,305,149 B2
• Filed: 08/29/2002
• Issued: 12/04/2007
• Est. Priority Date: 03/11/2002
• Status: Expired due to Fees

• Current Assignee: Mitsubishi Denki Kabushiki Kaisha (Mitsubishi Electric Corporation)
• Original Assignee: Mitsubishi Denki Kabushiki Kaisha (Mitsubishi Electric Corporation)
• Inventors: Yamada, Katsuhiko, Yoshikawa, Shoji, Takeya, Akito, Yamaguchi, Masafumi
• Primary Examiner(s): Bella; Matthew C.
• Assistant Examiner(s): PERUNGAVOOR, SATHYANARAYA V
• Application Number:
  US10/230,251
• Publication Number:
  US 20030169903A1
• Time in Patent Office: 1,923 Days
• Field of Search: 701/28, 382/305
• US Class Current: 382/305
• CPC Class Codes: G01C 21/26 specially adapted for navigation in a road network
• CPC Class Codes: G06T 17/05 Geographic models
• CPC Class Codes: G06T 19/006 Mixed reality object pose determination, tracking or camera calibration for mixed reality G06T7/00
• CPC Class Codes: G06T 2200/16 involving adaptation to the client's capabilities
• CPC Class Codes: G06T 7/74 involving reference images or patches

Abstract

An image collating center has a communication unit, a processing unit, and a memory unit. The processing unit accesses a geographic information database through a communication network, extracts appropriate geographic information from the geographic information database based on a picked-up image and additional information transmitted from an image provider, and generates a simulated image assumed to be viewed from the image provider. Further, the image collating center estimates the image pickup position and the image pickup attitude of the image provider through collating the simulated image with the picked-up image and returns the estimated image pickup position and image pickup attitude of the image provider to the image provider through the communication network.

Claims

1. An image pickup information recognition system comprising:

a communication network;

a geographic information database in communication with the communication network;

an image provider located on a vehicle, providing picked-up images, and in communication with the communication network; and

an image collating center in communication with the communication network, located at a location different from location of the vehicle including the image provider and the location of the geographic information database, the image collating center collating picked-up images from the image provider and geographic information from the geographic information database to determine vehicle location and communicating the vehicle location determined to the vehicle, the image collating center comprising

a reception section for receiving a picked-up image and additional information concerning the picked-up image from the image provider through the communication network,

a processing section for extracting geographic information from the geographic information database based on the additional information concerning the picked-up image received, generating a simulated image assumed to be viewed from any image provider, collating the simulated image with the picked-up image received from the image provider, and estimating image pickup position from the picked-up image based on the collating, and

a transmission section for transmitting the image pickup position estimated to the vehicle.

2. The image pickup information recognition system as claimed in claim 1, wherein the processing section estimates, from collating the simulated image with the picked-up image received from the image provider, image pickup attitude of the image provider.

3. The image pickup information recognition system as claimed in claim 2, wherein the transmission section transmits the image pickup attitude estimated to the vehicle.

4. The image pickup information recognition system as claimed in claim 1, wherein the image collating center includes a section for requesting the image provider to transmit, additionally, a picked-up image or additional information.