Title :
An Edge-Recovery-Based Error Concealment Method for Video
Author :
Sun, Jifeng ; Huang, Wenkai ; Zhang, Zhiyong
Author_Institution :
Sch. of Electron. & Inf. Eng., South China Univ. of Technol., Guangzhou
Abstract :
A low complexity spatial-domain error concealment method is proposed. The edges in lost MB´s are detected and recoveried by using neighborhood MB´s´ gradient data. The lost MB is divided into several smaller subblocks, each pixel in a subblock is directionally interpolated from representative boundary pixels adjacent to the subblock. Experimental results show that the proposed algorithm can recover high as well as low frequency information in lost MB´s and provide better visual quality and achieved with 1.5~2.5dB increase in PSNR in comparison with the conventional spatial domain interpolation.
Keywords :
edge detection; image resolution; interpolation; video coding; edge-recovery-based error concealment method; representative boundary pixels; spatial domain interpolation; video; visual quality; Automatic voltage control; Computer errors; Decoding; Error correction; Image edge detection; Image restoration; Intelligent systems; Interpolation; Video compression; Videoconference; Data Partition; Error Concealment; Error Control;
Conference_Titel :
Intelligent Systems Design and Applications, 2008. ISDA '08. Eighth International Conference on
Conference_Location :
Kaohsiung
Print_ISBN :
978-0-7695-3382-7
DOI :
10.1109/ISDA.2008.40
