Title :
Discontinuity-Adaptive De-Interlacing Scheme Using Markov Random Field Model
Author :
Li, Meng ; Nguyen, Thin
Author_Institution :
Dept. of Comput. Eng., California Univ., La Jolla, CA, USA
Abstract :
In this paper, a de-interlacing algorithm to find the optimal deinterlaced results given accuracy-limited motion information is proposed. The de-interlacing process is formulated as a maximum a posteriori (MAP)-Markov random field (MRF) problem. The MAP solution is the one that minimizes an energy function. The energy function imposes discontinuity adaptive smoothness constraint upon the deinterlaced frame. Simulation results show that the MAP-MRF formulation is efficient and the high frequency noise is removed in a few iterations.
Keywords :
Markov processes; maximum likelihood estimation; video signal processing; MAP-MRF; discontinuity-adaptive de-interlacing scheme; energy function maximization; maximum a posteriori Markov random field; Adaptive signal processing; Frequency; Hidden Markov models; Iterative algorithms; Markov random fields; Motion estimation; Noise robustness; Signal processing algorithms; TV receivers; Video sequences; TV receiver signal processing; hidden Markov models;
Conference_Titel :
Image Processing, 2006 IEEE International Conference on
Conference_Location :
Atlanta, GA
Print_ISBN :
1-4244-0480-0
DOI :
10.1109/ICIP.2006.312476