Interactive eyewear selection system

• US 6,231,188 B1
• Filed: 07/31/2000
• Issued: 05/15/2001
• Est. Priority Date: 09/22/1998
• Status: Expired due to Fees

• Current Assignee: Feng Gao, Wei Li
• Original Assignee: Feng Gao, Wei Li
• Inventors: Li, Wei, Gao, Feng
• Primary Examiner(s): MANUEL, GEORGE C
• Application Number:
  US09/629,763
• Time in Patent Office: 288 Days
• Field of Search: 351/204, 351/205, 351/177, 351/178, 351/227, 351/246, 351/207, 332/00, 335/07, 382/117, 382/275, 382/276, 396/18
• US Class Current: 351/227
• CPC Class Codes: G02C 13/003 Measuring during assembly or fitting of spectacles
• CPC Class Codes: G02C 13/005 Measuring geometric parameters required to locate ophtalmic lenses in spectacles frames apparatus for testing or instruments for examining the eyes per se A61B3/00; machines or devices and accessories for grinding the edges of lenses using spectacles as a template B24B9/144

Abstract

An interactive eyewear selection system comprising: a video camera and digitizing system for acquiring a digital image of a person'"'"'s face, including the temple areas of the face; an eyeglass frames database for storing digital eyeglass frame images; an automated interface for selecting an eyeglass frame image from the frames database, the image containing frame temple portions; a digital processing system for automatically superimposing the selected frame image on the image of the person'"'"'s face, in a composite image, such that the frame appears to be worn naturally on the person'"'"'s face and the frame temple portions are shown at the temple areas of the face; and a display device for displaying the digital image of the person'"'"'s face and for displaying the composite image.

Claims

1. A method of processing a digital eyeglass frame image which depicts an eyeglass frame and a background, said method comprising the steps of:

converting said digital frame image into a gray-level image which depicts a gray-level eyeglass frame and a gray-level background corresponding to the eyeglass frame and the background of said digital eyeglass frame image;

smoothing the gray-level image such that the boundary of the gray-level eyeglass frame is smooth;

substantially removing the gray-level background from the gray-level image to produce gray-level frame boundary data;

converting the gray-level frame boundary data into a binary image depicting a binary eyeglass frame; and

creating a color-filled image from said binary image and said digital eyeglass frame image, said color-filled image depicting an eyeglass frame having left and right color-filled rim areas and further depicting a color-filled background area, the left rim area being filled with a first color, the right rim area being filled with a second color, and the background area being filled with a third color.

2. The method of claim 1, wherein the step of removing the gray-level background from the gray-level image is performed by using edge detection operators.

3. The method of claim 1, wherein the gray-level frame boundary data is a gray-level frame boundary image.

4. The method of claim 3, further comprising the step of increasing the contrast of the gray-level frame boundary image before converting said image into the binary image.

5. The method of claim 1, further comprising the step of determining the centroids of the left and the right rim areas.

6. The method of claim 5, further comprising the step of determining the frame center fc, defined as the center point between the centroids of the left and the right rim areas.

7. The method of claim 6, further comprising the step of determining the segment heights, d1 and d2, of the eyeglass frame depicted in said color-filled image.

8. The method of claim 1, wherein the eyeglass frame depicted in said color-filled image has left and right rims, left and right temples, and a bridge between the left and right rims.

9. The method of claim 8, further comprising the step of determining left and right bridge points, B1 and B2, associated with the bridge of the eyeglass frame depicted in said color-filled image.

10. The method of claim 8, further comprising the step of determining left and right temple points, Q1 and Q2, associated with the left and the right temples, respectively, of the eyeglass frame depicted in said color-filled image.

11. The method of claim 10, further comprising the step of determining left and right temple segments, L1 and L2, associated with the left and the right temples, respectively, of the eyeglass frame depicted in said color-filled image.

12. A method of processing a digital eyeglass frame image which depicts a transparent or semi-transparent eyeglass frame and a background, said digital image having a plurality of colors, said method comprising the steps of:

(a) determining which color of the plurality of colors of said digital image occupies most of the area in said image;

(b) determining the locations where the color determined in step (a) occurs in said digital image;

(c) classifying the locations determined in step (b) as the background of said digital image;

(d) converting said digital image into a binary image depicting a binary eyeglass frame; and

(e) creating a color-filled image from said binary image and said digital eyeglass frame image, said color-filled image depicting an eyeglass frame having left and right color-filled rim areas and further depicting a color-filled background area, the left rim area being filled with a first color, the right rim area being filled with a second color, and the background area being filled with a third color.

13. The method of claim 12, wherein said step (a) is performed by generating a histogram for the plurality of colors of said digital image.

14. The method of claim 12, further comprising the steps of

(f) determining a neighborhood of colors surrounding the color determined in step (a);

(g) determining the locations of the neighborhood of colors determined in step (f); and

(h) classifying the locations of the neighborhood of colors as the background of said digital image.

15. A memory for storing eyeglass frame data, comprising:

an eyeglass frame data structure stored in said memory, said data structure including

a color-filled image,

said color filled-image depicting an eyeglass frame having left and right predetermined rim areas and further depicting a predetermined background area,

the left rim area being filled with a first color, the right rim area being filled with a second color, and the background area being filled with a third color.