Device, system and method for determining compliance with a positioning instruction by a figure in an image

• US 7,515,734 B2
• Filed: 03/27/2006
• Issued: 04/07/2009
• Est. Priority Date: 03/27/2006
• Status: Expired due to Fees

• Current Assignee: EyeCue Vision Technologies LTD
• Original Assignee: EyeCue Vision Technologies LTD
• Inventors: Horovitz, Rinat, Horovitz, Ronen
• Primary Examiner(s): Johns; Andrew W
• Application Number:
  US11/389,310
• Publication Number:
  US 20070223816A1
• Time in Patent Office: 1,107 Days
• Field of Search: 382/100, 382/103, 382/132, 382/151, 382/153, 382/286, 382/291
• US Class Current: 382/100
• CPC Class Codes: G06V 40/107 Static hand or arm

Abstract

A device, system and method for calculating location coordinates for a figure in an image that is illuminated by visible light, comparing such location coordinates to location coordinates of a figure, and evaluating compliance by such figure to an instruction to assume a defined position.

Claims

1. A system comprising:

an imaging device to capture a plurality of images of a figure using visible light;

a processor; and

an output device;

wherein

said imaging device captures a first of said plurality of said images of said figure in a first position; and

said processor compares said first position of said figure in said first of said plurality of said images to a second position of said figure in a second of said plurality of images, and determines compliance with an instruction to change said first position of said figure using said comparison.

2. The system as in claim 1, wherein said output device issues an indication of said compliance.

3. The system as in claim 1, wherein said output device issues said instruction to change said first position of said figure, and wherein said processor determines compliance with said instruction to change said first position of said figure to said second position.

4. The system as in claim 1, wherein said processor assesses a non-compliance with said instruction, and said output device issues a suggestion to correct said non-compliance.

5. The system as in claim 1, wherein said processor identifies a color of an object in said first of said plurality of said images.

6. The system as in claim 1, wherein said processor differentiates said figure from background image data.

7. The system as in claim 1, wherein said processor calculates a coordinate of a skeleton of said figure.

8. The system as in claim 1, wherein said processor calculates an intersection of a head-torso axis and a shoulder axis of said figure.

9. The system as in claim 1, wherein said processor calculates a convex deficiency of a skeleton of said figure.

10. The system as in claim 9, wherein said processor calculates an openness of said convex deficiency.

11. The system as in claim 1, wherein said processor calculates a distance and position of a center of mass of a convex deficiency from a center of mass of a skeleton of said figure.

12. The system as in claim 1, wherein said processor identifies a shape of an object in said image.

13. The system as in claim 1:

wherein said processor;

calculates a first distance and position of a center of mass of a convex deficiency from a center of mass of a skeleton of said figure in said first of said plurality of said images;

calculates a second distance and position of a center of mass of a convex deficiency from a center of mass of a skeleton of said figure in said second of said plurality of said images; and

compares said first distance and position of a center of mass of a convex deficiency from a center of mass of a skeleton of said figure to said second distance and position of a center of mass of a convex deficiency from a center of mass of a skeleton of said figure of said figure in said second of said plurality of images.

14. A device comprising:

a memory;

a processor;

an output device; and

an imager;

wherein

said imager captures an image of a figure, said image captured using visible light;

said processor calculates a plurality of first location coordinates of said figure in said image;

said output device issues a signal to alter a position of said figure;

said processor compares said plurality of first location coordinates stored in said memory to a plurality of second location coordinates; and

said output device issues a signal of a result of said comparison;

wherein said plurality of first location coordinates correspond to a plurality of mass center points of convex deficiencies of a skeleton of said figure.

15. The device as in claim 14, wherein said processor calculates a plurality of clusters of colors in said image, and said processor compares said plurality of clusters to color cluster information stored in said memory.

16. A method comprising:

calculating, using one or more processors, a position coordinate of a figure in a first image, said image captured using visible light;

comparing, using one or more processors, said position coordinate of said figure in said first image to a position coordinate of said figure in a second image; and

evaluating, using one or more processors, compliance by said figure in said second image with an instruction to assume a defined position;

wherein said calculating comprises calculating a distance and position of a mass center of a convex hull deficiency in said second image from a mass center of said figure in said second

17. The method as in claim 16, comprising clustering color pixels in said first image;

and comparing color clusters in said first image to color clusters in said second image.

18. An article comprising a computer-readable storage medium, having stored thereon instructions, that when executed on a computer, cause the computer to:

calculate a position coordinate of a figure in an image, said image captured using visible light;

compare said position coordinate of said figure in said image to a position coordinate of a figure in a known position; and

determine a position of said figure in said image;

wherein when executed on said computer further cause the computer to calculate a distance and position of a mass center of a convex hull deficiency of said figure in said image from a mass center of a skeleton of said figure in said image.