Error Concealment for Video Transmission Based on Watermarking

2005 ◽  
pp. 597-604
Author(s):  
Shuai Wan ◽  
Yilin Chang ◽  
Fuzheng Yang
Keyword(s):  
Video Transmission ◽  
Error Concealment

Efficient Frame Error Concealment Using Bilateral Motion Estimation for Low Bit-Rate Video Transmission

2009 ◽  
Vol E92-B (2) ◽  
pp. 461-472
Author(s):  
DinhTrieu DUONG ◽  
Min-Cheol HWANG ◽  
Byeong-Doo CHOI ◽  
Jun-Hyung KIM ◽  
Sung-Jea KO
Keyword(s):  
Motion Estimation ◽  
Video Transmission ◽  
Error Concealment ◽  
Bit Rate ◽  
Low Bit Rate

An Improved Error Concealment Based on Redundant Motion Vector Information

2012 ◽  
Vol 532-533 ◽  
pp. 1219-1224
Author(s):  
Hong Tao Deng
Keyword(s):  
Video Transmission ◽  
Error Concealment ◽  
Video Quality ◽  
Motion Vector ◽  
Compressed Video ◽  
Vector Information ◽  
Vector Estimation ◽  
Channel Errors ◽  
Bit Stream

During video transmission over error prone network, compressed video bit-stream is sensitive to channel errors that may degrade the decoded pictures severely. In order to solve this problem, error concealment technique is a useful post-processing tool for recovering the lost information. In these methods, how to estimate the lost motion vector correctly is important for the quality of decoded picture. In order to recover the lost motion vector, an Decoder Motion Vector Estimation (DMVE) criterion was proposed and have well effect for recover the lost blocks. In this paper, we propose an improved error concealment method based on DMVE, which exploits the accurate motion vector by using redundant motion vector information. The experimental results with an H.264 codec show that our method improves both subjective and objective decoder reconstructed video quality, especially for sequences of drastic motion.

H.264/AVC Error Concealment for DVB-H Video Transmission

2009 ◽  
pp. 461-484
Author(s):  
Susanna Spinsante ◽  
Ennio Gambi ◽  
Damiano Falcone
Keyword(s):  
Video Transmission ◽  
Error Concealment

scholarly journals An Optimized Dynamic Scene Change Detection Algorithm for H.264/AVC Encoded Video Sequences

2010 ◽  
Vol 2010 ◽  
pp. 1-9 ◽  
Author(s):  
Giorgio Rascioni ◽  
Susanna Spinsante ◽  
Ennio Gambi
Keyword(s):  
Change Detection ◽  
Video Transmission ◽  
Error Concealment ◽  
Detection Algorithm ◽  
Video Sequences ◽  
Semantic Features ◽  
Post Processing ◽  
Dynamic Scene ◽  
Scene Change ◽  
Scene Change Detection

Scene change detection plays an important role in a number of video applications, including video indexing, semantic features extraction, and, in general, pre- and post-processing operations. This paper deals with the design and performance evaluation of a dynamic scene change detector optimized for H.264/AVC encoded video sequences. The detector is based on a dynamic threshold that adaptively tracks different features of the video sequence, to increase the whole scheme accuracy in correctly locating true scene changes. The solution has been tested on suitable video sequences resembling real-world videos thanks to a number of different motion features, and has provided good performance without requiring an increase in decoder complexity. This is a valuable issue, considering the possible application of the proposed algorithm in post-processing operations, such as error concealment for video decoding in typical error prone video transmission environments, such as wireless networks.

Sign in / Sign up

Export Citation Format

Share Document