Method for motion compensation of a moving image using two dimensional triangle patch wireframe model
US6154578A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 30, 1997 |
| Grant date | Nov 28, 2000 |
| Priority date | — |
| Expiry date | Dec 30, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T7/20
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for compensating a motion of a moving image after estimating said motion is provided. In the method, a triangle-patch wireframe model is formed on a present frame of the moving image, and the triangle-patch wireframe model contains apexes. The motion vectors between the apexes of the triangle-patch wireframe model and corresponding points on a previous frame of the moving image is determined. The triangle-patch wireframe model on the present frame is transformed to form a transformed triangle-patch wireframe model on the previous frame by using the motion vectors such that the corresponding points respectively relate to secondary apexes of the transformed triangle-patch wireframe model. A first pixel value of a first pixel located at a predetermined position within the triangle-patch wireframe model of the present frame is replaced with a replacement pixel value of a second pixel located at a corresponding position within the triangle-patch wireframe model in the previous frame. Then, a new image is reconstructed using the replacement pixel value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.