METHOD, APPARATUS, AND PROGRAM FOR DISPLAYING AN OBJECT ON A COMPUTER SCREEN

• US 20110298822A1
• Filed: 12/03/2010
• Published: 12/08/2011
• Est. Priority Date: 12/17/2009
• Status: Active Grant

• Current Assignee: Dassault Systemes SA
• Original Assignee: Dassault Systemes SA
• Inventors: Bertholon, Florent
• Granted Patent: US 8,791,958 B2
• Time in Patent Office: Days
• US Class Current: 345/629
• CPC Class Codes: G06T 15/503 Blending, e.g. for anti-aliasing
• CPC Class Codes: G06T 2210/36 Level of detail
• CPC Class Codes: G06T 5/50 using two or more images, e.g. averaging or subtraction

Abstract

The invention is directed to a computer-implemented method for displaying an object on a computer screen, the method comprising the steps of: (i) computing a first image; (ii) displaying the first image; (iii) repeating k times the following steps: (iv) computing a n^th transition image; (v) computing a n^th merged image by merging the first image and the n^th transition image, the first image and the n^th transition image being weighted; and (vi) displaying the n^th merged image; wherein n ranges from 1 to k, n and k being positive integers.

Claims

1. A computer-implemented method for displaying an object on a computer screen, the method comprising the steps of:

computing a first image;

displaying the first image;

repeating k times the following steps;

computing a n^th transition image;

computing a n^th merged image by merging the first image and the n^th transition image, the first image and the n^th transition image being weighted; and

displaying the n^th merged image;

wherein n ranges from 1 to k, n and k being positive integers.

2. The method according to claim 1, wherein the n^th transition image is computed starting from the (n-1)^th transition image.

3. The method according to claim 1, wherein the step of computing the n^th merged image is carried out by a function ƒ

in which the pixels of the first image and n^th transition image are variables of the function ƒ

.

4. The method according to claim 1, wherein the first image and the n^th transition image are weighted by the function ƒ

which is a weighting function.

5. The method according to claim 4, wherein the weighting function ƒ

is defined as follow;

p1 ƒ

(Im_Deg, Im_Trans(n), n)=α

(n)·

Im_Trans(n)+(1−

α

(n))·

Im_Deg; and

wherein

Im_Deg is the computed first image;

Im_Trans(n) is the computed n^th transition image; and

α

(n) is a function ranging from 0 to 1 and having n as a variable.

6. The method according to claim 1, wherein at the step of repeating, k is selected so as to meet an end criterion.

7. The method according to claim 6, wherein the end criterion is met when the merged image displayed is a final image.

8. The method according to claim 6, wherein k is selected by default or by a user.

9. An apparatus for displaying an object on a computer screen, the apparatus comprising means for:

computing a first image;

displaying the first image;

repeating k times the following steps;

computing a n^th transition image;

computing a n^th merged image by merging the first image and the n^th transition image, the first image and the n^th transition image being weighted; and

displaying the n^th merged image;

wherein n ranges from 1 to k, n and k being positive integers.

10. A computer program, stored on a computer readable medium, for displaying an object on a computer screen, comprising code means for causing a computer to take the steps of:

computing a first image;

displaying the first image;

repeating k times the following steps;

computing a n^th transition image;

computing a n^th merged image by merging the first image and the n^th transition image, the first image and the n^th transition image being weighted; and

displaying the n^th merged image;

wherein n ranges from 1 to k, n and k being positive integers.