IMAGE PROCESSING APPARATUS AND METHOD FOR TRACKING A LOCATION OF A TARGET SUBJECT
First Claim
1. A digital image processing apparatus having a tracking function for tracking a location variation of a set tracking area on a plurality of frame images, the apparatus comprising:
- a similarity calculation unit having a frame image input, a template input, and a similarity output, the similarity calculation unit configured to calculate the similarity output by;
(a) varying a location of a template on one frame image, wherein the similarity calculation unit(i) calculates a second direction similarity byfixing a first direction location of the template in a first direction on the one frame image andvarying a second direction location of the template in a second direction on the one frame image, the second direction being perpendicular to the first direction, and(ii) then calculates a first direction similarity byfixing the second direction location of the template at a location where the second direction similarity is the highest andvarying the first direction location of the template in the first direction on the one frame image; and
(b) outputting the first direction similarity and the second direction similarity via the similarity output.
2 Assignments
0 Petitions
Accused Products
Abstract
A digital image processing apparatus has a tracking function for tracking a location variation of a set tracking area on a plurality of frame images. The digital image processing apparatus includes a similarity calculation unit that calculates a similarity by varying a location of a template on one frame image. The similarity calculation unit calculates a second direction similarity by fixing a first direction location of the template in a first direction on the one frame image and by varying a second direction location of the template in a second direction which is perpendicular to the first direction, and then calculates a first direction similarity by fixing the second direction location of the template at a location where the second direction similarity is the highest and by varying the first direction location of the template in the first direction on the one frame image.
-
Citations
22 Claims
-
1. A digital image processing apparatus having a tracking function for tracking a location variation of a set tracking area on a plurality of frame images, the apparatus comprising:
a similarity calculation unit having a frame image input, a template input, and a similarity output, the similarity calculation unit configured to calculate the similarity output by; (a) varying a location of a template on one frame image, wherein the similarity calculation unit (i) calculates a second direction similarity by fixing a first direction location of the template in a first direction on the one frame image and varying a second direction location of the template in a second direction on the one frame image, the second direction being perpendicular to the first direction, and (ii) then calculates a first direction similarity by fixing the second direction location of the template at a location where the second direction similarity is the highest and varying the first direction location of the template in the first direction on the one frame image; and (b) outputting the first direction similarity and the second direction similarity via the similarity output. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
12. A method of controlling a digital image processing apparatus, the method comprising:
-
(a) calculating a second direction similarity by regarding a tracking area set on a previous frame image as a template on a current frame image, regarding a location or a neighboring location of the tracking area in a first direction on the previous frame image as a first direction location of the template in the first direction, fixing the first direction location of the template, varying a second direction location of the template in a second direction which is perpendicular to the first direction; and (b) calculating a first direction similarity by fixing the second direction location of the template at a location where the second direction similarity is the highest, which is determined in (a), and by varying the first direction location of the template in the first direction on the current frame image. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21)
-
-
22. A computer readable storage medium having stored thereon a program executable by a processor for performing a method, the method comprising:
-
(a) calculating a second direction similarity by regarding a tracking area set on a previous frame image as a template on a current frame image, regarding a location or a neighboring location of the tracking area in a first direction on the previous frame image as a first direction location of the template in the first direction, fixing the first direction location of the template, varying a second direction location of the template in a second direction which is perpendicular to the first direction; and (b) calculating a first direction similarity by fixing the second direction location of the template at a location where the second direction similarity is the highest, which is determined in (a), and by varying the first direction location of the template in the first direction on the current frame image.
-
Specification