Method and device for computer-aided motion estimation
1 Assignment
0 Petitions
Accused Products
Abstract
A method and a device for computer-aided motion estimation in at least two temporally successive digital images with pixels to which coding information is assigned are provided, the motion being estimated on the basis of the spatial distribution of feature points.
-
Citations
29 Claims
-
1. (canceled)
-
2-11. -11. (canceled)
-
12. A method for computer-aided motion estimation in at least two temporally successive digital images with pixels to which coding information is assigned, comprising:
-
determining a set of feature points of the first image with subpixel accuracy using a first selection criterion, a feature point of the first image being a pixel of the first image, in the case of which the coding information which is assigned to the pixel and the coding information which is assigned in each case to the pixels in a vicinity of the pixel satisfy the first selection criterion;
determining a set of feature points of the second image with subpixel accuracy using a second selection criterion, a feature point of the second image being a pixel of the second image, in the case of which the coding information which is assigned to the pixel and the coding information which is assigned in each case to the pixels in a vicinity of the pixel satisfy the second selection criterion;
determining an assignment of each feature point of the first image to a respective feature point of the second image on the basis of the spatial distribution of the set of feature points of the first image and on the basis of the spatial distribution of the set of feature points of the second image; and
estimating the motion with subpixel accuracy on the basis of the assignment. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
-
-
20. A computer program element, which, after it has been loaded into a memory of a computer, has the effect that the computer carries out a method for computer-aided motion estimation in at least two temporally successive digital images with pixels to which coding information is assigned, comprising:
-
determining a set of feature points of the first image with subpixel accuracy using a first selection criterion, a feature point of the first image being a pixel of the first image, in the case of which the coding information which is assigned to the pixel and the coding information which is assigned in each case to the pixels in a vicinity of the pixel satisfy the first selection criterion;
determining a set of feature points of the second image with subpixel accuracy using a second selection criterion, a feature point of the second image being a pixel of the second image, in the case of which the coding information which is assigned to the pixel and the coding information which is assigned in each case to the pixels in a vicinity of the pixel satisfy the second selection criterion;
determining an assignment of each feature point of the first image to a respective feature point of the second image on the basis of the spatial distribution of the set of feature points of the first image and on the basis of the spatial distribution of the set of feature points of the second image; and
estimating the motion with subpixel accuracy on the basis of the assignment.
-
-
21. A computer-readable storage medium, on which a program is stored which enables a computer, after it has been loaded into a memory of the computer, to carry out a method for computer-aided motion estimation in at least two temporally successive digital images with pixels to which coding information is assigned, comprising:
-
determining a set of feature points of the first image with subpixel accuracy using a first selection criterion, a feature point of the first image being a pixel of the first image, in the case of which the coding information which is assigned to the pixel and the coding information which is assigned in each case to the pixels in a vicinity of the pixel satisfy the first selection criterion;
determining a set of feature points of the second image with subpixel accuracy using a second selection criterion, a feature point of the second image being a pixel of the second image, in the case of which the coding information which is assigned to the pixel and the coding information which is assigned in each case to the pixels in a vicinity of the pixel satisfy the second selection criterion;
determining an assignment of each feature point of the first image to a respective feature point of the second image on the basis of the spatial distribution of the set of feature points of the first image and on the basis of the spatial distribution of the set of feature points of the second image; and
estimating the motion with subpixel accuracy on the basis of the assignment.
-
-
22. A device for computer-aided motion estimation in at least two temporally successive digital images with pixels to which coding information is assigned, comprising:
-
means for determining a set of feature points of the first image with subpixel accuracy using a first selection criterion, a feature point of the first image being a pixel of the first image, in the case of which the coding information which is assigned to the pixel and the coding information which is assigned in each case to the pixels in a vicinity of the pixel satisfy the first selection criterion;
means for determining a set of feature points of the second image with subpixel accuracy using a second selection criterion, a feature point of the second image being a pixel of the second image, in the case of which the coding information which is assigned to the pixel and the coding information which is assigned in each case to the pixels in a vicinity of the pixel satisfy the second selection criterion;
means for determining an assignment of each feature point of the first image to a respective feature point of the second image on the basis of the spatial distribution of the set of feature points of the first image and on the basis of the spatial distribution of the set of feature points of the second image; and
means for estimating the motion with subpixel accuracy on the basis of the assignment. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29)
-
Specification