Title :
Super-resolution utilizing Total Variation regularization on CELL processor
Author :
Sakuta, Y. ; Tsutsui, A. ; Goto, T. ; Sakurai, M. ; Sakai, R.
Author_Institution :
Dept. of Comput. Sci. & Eng., Nagoya Inst. of Technol., Nagoya, Japan
Abstract :
In this paper, we have proposed a new fast super-resolution magnification method utilizing the Total Variation (TV) regularization for HDTV receivers. The TV regularization approach has not been considered to be a practical technology for motion pictures because of its large computational time. We have solved this problem by applying a combination of a High-pass filter (HPF) and the simpler TV method to the TV up-sampling block in the conventional TV magnification system. The computational time has been drastically reduced by the proposed method without losing picture quality. We have implemented our system on the CELL processor, in order to examine the feasibility of SD to HD conversion in HDTV receivers. The result is successful that the computational time for one frame processing is 14.98ms, which is less than one frame time of 16.7ms.
Keywords :
high definition television; high-pass filters; image resolution; microprocessor chips; television receivers; CELL processor; HDTV receivers; TV magnification system; TV regularization approach; TV up-sampling block; fast super-resolution magnification method; frame processing; high-pass filter; time 14.98 ms; time 16.7 ms; total variation regularization; HDTV; High definition video; Image edge detection; Image resolution; Interpolation; Pipelines;
Conference_Titel :
Consumer Electronics (ICCE), 2012 IEEE International Conference on
Conference_Location :
Las Vegas, NV
Print_ISBN :
978-1-4577-0230-3
DOI :
10.1109/ICCE.2012.6162055
