Restricted H.264/AVC video coding for privacy region scrambling

Author

Tong, Lingling ; Dai, Feng ; Zhang, Yongdong ; Li, Jintao

Author_Institution

Multimedia Comput. Group, Chinese Acad. of Sci., Beijing, China

fYear

2010

fDate

26-29 Sept. 2010

Firstpage

2089

Lastpage

2092

Abstract

Scrambling is widely used to protect privacy in surveillance video. However, as a critical issue in privacy protected video scrambling, drift error has not been adequately studied. In this paper, we focus on drift error prevention for different elements scrambling in privacy protected H.264/AVC video, which is the prevailing coding standard. A restricted coding scheme is proposed to prevent drift error in Transform Coefficient (TC), Intra Prediction Mode (IPM) and Motion Vector (MV) scrambling, respectively. Experiments show that the proposed scheme effectively prevents drift error with coding efficiency dramatically improved.

Keywords

data privacy; image motion analysis; transforms; video coding; video surveillance; H.264/AVC video coding; IPM; MV scrambling; drift error prevention; intra prediction mode; motion vector scrambling; privacy protected video scrambling; privacy region scrambling; surveillance video; transform coefficient; Automatic voltage control; Bit rate; Decoding; Encoding; Image coding; Privacy; Video coding; H.264/AVC; Privacy protection; drift error prevention; surveillance; video scrambling;

fLanguage

English

Publisher

ieee

Conference_Titel

Image Processing (ICIP), 2010 17th IEEE International Conference on

Conference_Location

Hong Kong

ISSN

1522-4880

Print_ISBN

978-1-4244-7992-4

Electronic_ISBN

1522-4880

Type

conf

DOI

10.1109/ICIP.2010.5653444

Filename

5653444