Method for compiling an image database, an image database system, and an image data storage medium

• US 6,549,913 B1
• Filed: 02/23/1999
• Issued: 04/15/2003
• Est. Priority Date: 02/26/1998
• Status: Expired due to Fees

• Current Assignee: Minolta Co., Ltd. (Konica Minolta Inc.)
• Original Assignee: Minolta Co., Ltd. (Konica Minolta Inc.)
• Inventors: Murakawa, Akira
• Primary Examiner(s): Robinson, Greta
• Assistant Examiner(s): Black, Linh
• Application Number:
  US09/255,355
• Time in Patent Office: 1,512 Days
• Field of Search: 707/1-10, 707/100-104, 707/200-205, 382/115-127, 382/168-172, 382/173-180, 382/181-231, 382/232-253, 340/5--
• US Class Current: 1/1
• CPC Class Codes: G06F 16/532 Query formulation, e.g. graphical querying
• CPC Class Codes: Y10S 707/99945 Object-oriented database structure processing
• CPC Class Codes: Y10S 707/99948 Application of database or data structure, e.g. distributed, multimedia, or image

Abstract

A method and system for automatically compiling an image database containing facial images for a large number of people searches all facial images stored in a face dictionary containing image data and attribute information for known persons for all images stored in an image database. When matching facial images are found, the attribute information from the face dictionary is added to the image information in the image database as an index to that information. The current record indicated by a record pointer is loaded to obtain the file path to the image file, which is stored with the data record. The image file is then loaded, the record pointer in the face dictionary is moved to the top, and the current record indicated by the record pointer in the face dictionary is loaded. Attribute information such as personal name, address, sex, and job title, and a facial image or facial features enabling a person to be identified, are stored to each record in the face dictionary, and can therefore be obtained by loading a face dictionary record. A particular person can then be searched for and evaluated based on the image data loaded from the image database, and facial image information loaded from the face dictionary.

Claims

1. A method of compiling an image database in which facial images for a plurality of people are stored with related attribute information to enable searching and retrieving required facial images based on the related attribute information, said method comprising the following steps of:

storing facial image information together with attribute information corresponding to the facial image information in a face dictionary; and

comparing a facial image stored or to be stored in the image database with the facial image information stored in the face dictionary,

wherein, when the facial image information matching the facial image exists in the face dictionary, the attribute information, which is stored in the face dictionary corresponding to said matching facial image information, is stored in the image database as related attribute information of the facial image.

13. A method in accordance with claim 1, further comprising a step of capturing a facial image to be stored in the face dictionary to obtain the facial image information.

14. A method in accordance with claim 13, wherein said step of capturing the facial image includes simultaneously obtaining the corresponding attribute information by capturing an image of a business card for storage to the face dictionary.

15. A method in accordance with claim 14, wherein said step of capturing the facial image includes performing an OCR process on data obtained by capturing the image of the business card.

2. An image database system for storing facial images for a plurality of people together with related attribute information to enable searching and retrieving required facial images based on the related attribute information, said image database system comprising:

a face dictionary for storing facial image information together with attribute information corresponding to the facial image information; and

a processor for comparing a facial image stored or to be stored in the image database with the facial image information stored in the face dictionary,

wherein, when the facial image information matching the facial image exists in the face dictionary, said processor stores the attribute information, which is stored in the face dictionary corresponding to said matching facial image information, in the image database as related attribute information of the facial image.

3. An image database system as set forth in claim 2, further comprising a capturing means for capturing a facial image to be stored in the face dictionary to obtain the facial image information.

4. An image database system as set forth in claim 3, wherein said capturing means simultaneously obtains the facial image information and the corresponding attribute information by capturing an image of a business card for storage to the face dictionary.

5. An image database system as set forth in claim 2, wherein the face dictionary is stored in a CD-ROM.

6. An image database system as set forth in claim 2, wherein the face dictionary is stored in a hard disk.

7. An image database system as set forth in claim 2, further comprising a printer for printing the retrieved facial images.

16. An image database system as set forth in claim 3, wherein said capturing means is a device selected from the group consisting of a scanner, a digital camera, and a video still camera.

8. A computer-executable program for compiling an image database in which facial images for a plurality of people are stored with related attribute information to enable searching and retrieving required facial images based on the related attribute information, said program comprising:

instructions for storing facial image information together with attribute information corresponding to the facial image information in a face dictionary; and

instructions for comparing a facial image stored or to be stored in the image database with the facial image information stored in the face dictionary;

wherein, when the facial image information matching the facial image exists in the face dictionary, the attribute information, which is stored in the face dictionary corresponding to said matching facial image information, is stored in the image database as related attribute information of the facial image.

17. A computer-executable program in accordance with claim 8, further comprising instructions for capturing a facial image to be stored in the face dictionary to obtain the facial image information.

18. A computer-executable program in accordance with claim 17, wherein said instructions for capturing the facial image includes instructions for simultaneously obtaining the corresponding attribute information by capturing an image of a business card for storage to the face dictionary.

19. A computer-executable program in accordance with claim 18, wherein said instructions for capturing the facial image include instructions for performing an OCR process on data obtained by capturing the image of the business card.

9. A computer-readable medium having computer-executable instructions recorded thereon for compiling an image database in which a facial image of a person is stored with related attribute information to enable searching and retrieving required facial images based on the related attribute information, said instructions comprising:

a first set of instructions for storing facial image information together with attribute information corresponding to the facial image information in a face dictionary;

a second set of instructions for comparing a facial image stored or to be stored in the image database with the facial image information stored in the face dictionary; and

a third set of instructions for storing, when the facial image information matching the facial image exists in the face dictionary, the attribute information, which is stored in the face dictionary corresponding to said matching facial image information, in the image database as related attribute information of the facial image.

10. A computer-readable medium in accordance with claim 9, further comprising a fourth set of instructions for capturing a facial image to be stored in the face dictionary to obtain the facial image information.

11. A computer-readable medium in accordance with claim 10, wherein said fourth set of instructions for capturing the facial image includes instructions for simultaneously obtaining the corresponding attribute information by capturing an image of business card for storage to the face dictionary.

12. A computer-readable medium in accordance with claim 11, wherein said fourth set of instructions includes instructions for performing an OCR process on data obtained by capturing the image of the business card.