SE8702600D0 - CORRELATION OF IMAGES - Google Patents
CORRELATION OF IMAGESInfo
- Publication number
- SE8702600D0 SE8702600D0 SE8702600A SE8702600A SE8702600D0 SE 8702600 D0 SE8702600 D0 SE 8702600D0 SE 8702600 A SE8702600 A SE 8702600A SE 8702600 A SE8702600 A SE 8702600A SE 8702600 D0 SE8702600 D0 SE 8702600D0
- Authority
- SE
- Sweden
- Prior art keywords
- image
- function
- readjusted
- elements
- images
- Prior art date
Links
- 238000005314 correlation function Methods 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/14—Picture signal circuitry for video frequency region
- H04N5/144—Movement detection
- H04N5/145—Movement estimation
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/20—Analysis of motion
- G06T7/262—Analysis of motion using transform domain methods, e.g. Fourier domain methods
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Mathematical Physics (AREA)
- Computer Vision & Pattern Recognition (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Image Analysis (AREA)
Abstract
Compensation of the image to be readjusted (2), with respect to another image, called the reference image (1), is effected the background of the image to be readjusted (2) having undergone a translation with respect to the background of the reference image (1). The process consists in: - defining a correlation function, which is a function of the coordinates of the elements of the image to be readjusted (2) and of the elements of the reference image (1) having a high luminance gradient, i.e. corresponding with contours, and as a function of the components * capital Greek delta *x and * capital Greek delta *y of a translation vector of a correlation window (7,8) cut out from the images (1,2); - computing the values T x and T y of the components * capital Greek delta *x and * capital Greek delta *y , such that the correlation function is a maximum, this computation being refined by a second order interpolation; - computing luminance values of the elements of an image called the readjusted image, as a function of the luminance values of the elements of the image to be readjusted c2) and as a function of the values T x and T y . Application to the tracking of an object in a series of images.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8608920A FR2751453A1 (en) | 1986-06-20 | 1986-06-20 | METHOD FOR REPLACING AN IMAGE IN RELATION TO ANOTHER IMAGE, AND DEVICE FOR IMPLEMENTING SAID METHOD |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SE8702600D0 true SE8702600D0 (en) | 1987-06-22 |
Family
ID=9336517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE8702600A SE8702600D0 (en) | 1986-06-20 | 1987-06-22 | CORRELATION OF IMAGES |
Country Status (5)
| Country | Link |
|---|---|
| DE (1) | DE3720377A1 (en) |
| FR (1) | FR2751453A1 (en) |
| GB (1) | GB2315946B (en) |
| IT (1) | IT8767525A0 (en) |
| SE (1) | SE8702600D0 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100255648B1 (en) * | 1997-10-10 | 2000-05-01 | 윤종용 | Video motion detection apparatus and method by gradient pattern matching |
| DE19834465A1 (en) * | 1998-07-30 | 2015-05-28 | LFK Lenkflugkörpersysteme GmbH | Device and method for track point shifting |
| RU2468437C2 (en) * | 2009-07-14 | 2012-11-27 | Тагир Данилович Гильфанов | Method to increase resolution of video sequence |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3828122A (en) * | 1970-09-29 | 1974-08-06 | Bendix Corp | Tv area correlation tracker |
| FR2538653B1 (en) * | 1982-05-28 | 1989-03-31 | Thomson Csf | METHOD FOR ESTIMATING TRANSLATIONS SUBJECT TO OBJECTS REPRESENTED IN A SEQUENCE OF IMAGES AND DEVICE IMPLEMENTING THIS METHOD |
-
1986
- 1986-06-20 FR FR8608920A patent/FR2751453A1/en active Pending
-
1987
- 1987-06-18 IT IT8767525A patent/IT8767525A0/en unknown
- 1987-06-19 GB GB8714370A patent/GB2315946B/en not_active Expired - Fee Related
- 1987-06-19 DE DE19873720377 patent/DE3720377A1/en not_active Ceased
- 1987-06-22 SE SE8702600A patent/SE8702600D0/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR2751453A1 (en) | 1998-01-23 |
| IT8767525A0 (en) | 1987-06-18 |
| GB8714370D0 (en) | 1998-01-07 |
| GB2315946A (en) | 1998-02-11 |
| DE3720377A1 (en) | 1998-05-07 |
| GB2315946B (en) | 1998-06-24 |
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