Image password lock system by tracing position information of the organism or article feature

• US 20070041621A1
• Filed: 08/17/2005
• Published: 02/22/2007
• Est. Priority Date: 08/17/2005
• Status: Active Grant

• Current Assignee: National Chung-Shan Institute of Science and Technology
• Original Assignee: Chung-Shan Institute of Science & Technology Armaments Bureau MND (Government of The Republic of China)
• Inventors: Wang, Chun-Chiang, Lin, Chern-Sheng, Lin, Ten-Ken, Yeh, Mau-Shiun, You, Cheng-Feng
• Granted Patent: US 7,599,525 B2
• Time in Patent Office: Days
• US Class Current: 382/117
• CPC Class Codes: G06V 40/18 Eye characteristics, e.g. of the iris
• CPC Class Codes: G06V 40/20 Movements or behaviour, e.g. gesture recognition recognition of facial expressions G06V40/16

Abstract

An image password lock system by tracing the position information of the organism or article feature is provided. In this embodiment, a photographic device photographs a movable target object to read a dynamic image data. Moreover, the dynamic image data has a predetermined shooting range set to be a whole-region image, and the whole-region image has a central region and a plurality of specific password regions. A target object image is displayed by a display device, and then processed by an image processing device, thereby calculating a center coordinate point of the target object image in the dynamic image data, compiling a password constituted by a movement position of the target object image, displaying the password, and validating the password. Therefore, benefits of a novel password input mode without any contact, an efficient anti-theft function and the like are provided.

Claims

1. An image password lock system by tracing the position information of the organism or article features, comprising:

a photographic device, for photographing a movable target object to read a dynamic image data having a predetermined shooting range set to be a whole-region image;

the target object corresponds to a target object image; and

the whole-region image has a central region and a plurality of specific password regions;

a display device; and

an image processing device, including;

a calculation module of the center point of the target object, for calculating a center coordinate point of the target object image in the dynamic image data;

a validation module of the target object movement, for outputting a password corresponding to one of the specific password regions, when the center point of the target object image moves toward one of the specific password regions from the central region and then back to the central region;

a password display module, for displaying the password outputted on the display device; and

a password validation device, for comparing whether the password is the same as a predetermined correct password, where when the password is the same as the predetermined correct password, output a password-correct action.

2. The image password lock system by tracing the position information of the organism or article feature of claim 1, wherein a number of the specific password regions is eight, respectively located above, top right of, right of, bottom right of, below, bottom left of, left of, top left of the central region, and represented by 1, 2, 3, 4, 5, 6, 7, and 8, respectively;

and wherein the validation module of the target object movement outputs a warning action to indicate that the specific password region has not been reached when the center point of the target object image moves toward but still away from the specific password region.

3. The image password lock system by tracing the position information of the organism or article feature of claim 1, wherein the password is formed by moving a feature of the target object to each of the specific password regions.

4. The image password lock system by tracing the position information of the organism or article feature of claim 3, wherein the feature of the target object is selected from the group consisting of an organism feature and an article feature.

5. The image password lock system by tracing the position information of the organism or article feature of claim 4, wherein the organism feature is selected from the group consisting of an pupil of an user, and an head of the user.

6. The image password lock system by tracing the position information of the organism or article feature of claim 4, wherein the organism feature is initially set to a black object.

7. The image password lock system by tracing the position information of the organism or article feature of claim 6, wherein the organism feature is selected from the group consisting of an pupil of an user, and an head of the user.

8. The image password lock system by tracing the position information of the organism or article feature of claim 4, wherein when locking the organism feature fails due to a plurality of black pixels in the central region are few, the central region is set to be a 6×

6 mask template and the article feature is defined by a template matching method of a shape detection, thereby obtaining a coordinate of the article feature.

9. The image password lock system by tracing the position information of the organism or article feature of claim 8, wherein the article feature is selected from the group consisting of a ring, a signature pen, and a decoration.

10. The image password lock system by tracing the position information of the organism or article feature of claim 1, wherein an up/down direction and a left/right moving direction of the dynamic image data read by a photographic chip of the photographic device corresponds to an up/down direction and a left/right moving direction of the user.

11. The image password lock system by tracing the position information of the organism or article feature of claim 10, wherein the photographic device is a charge coupled device.

12. The image password lock system by tracing the position information of the organism or article feature of claim 1, wherein when a photographic lens of the photographic device is shielded with a hand to start an initial setting of the image password lock system, when the photographic lens has shielded with the hand for a preset time, the image password lock system is in a standby state, and when the hand is away from the photographic lens with the preset time passed, the photographic device outputs an indicating signal to inform an user and retrieves a feature of the target object before the photographic lens, where the target object has a distinct color from a background to avoid that calculating the center coordinate point of the target object fails.

13. The image password lock system by tracing the position information of the organism or article feature of claim 12, wherein the indicating signal is selected from the group consisting of a light and a sound.

14. The image password lock system by tracing the position information of the organism or article feature of claim 1, further comprising:

a means for making a sound to notify a user that the user moves following a coordinate points indicated by the image password lock system when a movement coordinate point of the user has not reached a neighborhood of the coordinate point.