Name
Abstract | ||
|---|---|---|
In this paper, an original spatial shape error-concealment technique, to be used in the context of object-based image and video coding schemes, is proposed. In this technique, it is assumed that the shape of the corrupted object at hand is in the form of a binary alpha plane, in which some of the shape data is missing due to channel errors. From this alpha plane, a contour corresponding to the border of the object can be extracted. However, due to errors, some parts of the contour will be missing and, therefore, the contour will be broken. The proposed technique relies on the interpolation of the missing contours with Be´zier curves, which is done based on the available surrounding contours. After all the missing parts of the contour have been interpolated, the concealed alpha plane can be easily reconstructed from the fully recovered contour and used instead of the erroneous one improving the final subjective impact. |
Year | DOI | Venue |
|---|---|---|
2004 | 10.1109/TIP.2004.823826 | IEEE transactions on image processing : a publication of the IEEE Signal Processing Society |
Keywords | Field | DocType |
missing contour interpolation,bezier curves,object-based image coding,corrupted object,computational complexity,channel error,feature extraction,contour extraction,video coding,binary alpha plane,mobile multimedia services,spatial shape error concealment technique,object-based video coding | Iterative reconstruction,Computer vision,Pattern recognition,Edge detection,Computer science,Interpolation,Image processing,Feature extraction,Artificial intelligence,Missing data,Motion estimation,Data compression | Journal |
Volume | Issue | ISSN |
13 | 4 | 1057-7149 |
Citations | PageRank | References |
26 | 1.57 | 4 |
Authors | ||
2 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Luis Ducla Soares | 1 | 226 | 27.77 |
| Fernando Pereira | 2 | 17717 | 2124.79 |