A Cauchy Distribution based Video Watermark Detection for H.264/AVC in DCT Domain

 
When?
Monday 16 May 2011, 13:30 to 14:30
Where?
39BB02
Open to:
Staff, Students
Speaker:
Mr Gaobo Yang

Compared with Generalized Gaussian distribution (GGD), Cauchy distribution is superior to describe the statistical distribution of the Intra-coded DCT coefficients in H.264/AVC. For the bipolar additive watermark in H.264/AVC video stream, a Cauchy distribution based detection algorithm is proposed by ternary hypothesis testing. Experimental results show that the proposed approach can achieve more than 80% on average for the accuracy of watermark detection.

Date:
Monday 16 May 2011
Time:

13:30 to 14:30


Where?
39BB02
Open to:
Staff, Students
Speaker:
Mr Gaobo Yang

Page Owner: eih206
Page Created: Monday 9 May 2011 16:24:41 by eih206
Last Modified: Monday 9 May 2011 16:25:21 by eih206
Expiry Date: Thursday 9 August 2012 16:22:17
Assembly date: Tue Mar 26 18:35:31 GMT 2013
Content ID: 55720
Revision: 1
Community: 1028