| Full text | |
| Author(s): |
de Lima, Vitor
;
Moreira, Thierry
;
Pedrini, Helio
;
Schwartz, William Robson
;
Imai, F
;
Tremeau, A
;
Braz, J
Total Authors: 7
|
| Document type: | Journal article |
| Source: | PROCEEDINGS OF THE 12TH INTERNATIONAL JOINT CONFERENCE ON COMPUTER VISION, IMAGING AND COMPUTER GRAPHICS THEORY AND APPLICATIONS (VISIGRAPP 2017), VOL 4; v. N/A, p. 10-pg., 2017-01-01. |
| Abstract | |
Video transmissions usually occur at a fixed or at a small number of predefined bit rates. This can lead to several problems in communication channels whose bandwidth can vary along time (e.g. wireless devices). This work proposes a video encoding method for solving such problems through a fine rate control that can be dynamically adjusted with low overhead. The encoder uses fractal compression and a simple rate distortion heuristic to preprocess the content in order to speed up the process of switching between different bit rates. Experimental results show that the proposed approach can accurately transcode a preprocessed video sequence into a large range of bit rates with a small computational overhead. (AU) | |
| FAPESP's process: | 15/12228-1 - Detection and recognition of complex events in videos |
| Grantee: | Hélio Pedrini |
| Support Opportunities: | Scholarships abroad - Research |
| FAPESP's process: | 15/03156-7 - Activity recognition from videos |
| Grantee: | Thierry Pinheiro Moreira |
| Support Opportunities: | Scholarships in Brazil - Doctorate |