Interlaced to progressive scan conversion with double smoothing
- 1 January 1993
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Consumer Electronics
- Vol. 39 (3) , 241-246
- https://doi.org/10.1109/30.234588
Abstract
An interlaced to progressive (I/P) scan conversion scheme based on a three-point vertical median filtering is described. The three points are the interlaced data passed through double smoothing (DS). The DS based on order statistic filtering preceded by censoring eliminates impulsive and/or nonimpulsive noise while preserving signal edges. The three-point vertical median operation for I/P conversion controls the adaptive switching between a moving scene mode and a stationary scene mode without complex motion and edge detection. A structure for implementation of the proposed I/P conversion circuit is described. This circuit features an integrated dynamic RAM based on horizontal lines, a field memory, and a high-speed bubble sorter. Test results confirm that the proposed scheme is effective in I/P conversion for impulsive and/or nonimpulsive noise-contaminated imagesKeywords
This publication has 4 references indexed in Scilit:
- Interlaced to progressive scan conversion for HD-MAC applicationIEEE Transactions on Consumer Electronics, 1992
- Double smoothing of images using median and Wiener filtersIEEE Transactions on Acoustics, Speech, and Signal Processing, 1989
- A generalization of median filtering using linear combinations of order statisticsIEEE Transactions on Acoustics, Speech, and Signal Processing, 1983
- Applications of a nonlinear smoothing algorithm to speech processingIEEE Transactions on Acoustics, Speech, and Signal Processing, 1975