Paper Info
Title
A new signal processing method for video: reproduce the frequency spectrum exceeding the Nyquist frequency
Abstract
A new signal processing method to improve video image quality is proposed in this paper. Improving video image resolution has been researched for many years. The method of edge enhancing is usually known as Sharpness Circuit (SC), Enhancer or Unsharp Mask,. It is widely used since it works in real time and it is cost efficient. However, edge enhancing does not actually improve the degree of resolution but increases perceived resolution. It is almost impossible to create components exceeding the Nyquist frequency using conventional linear signal processing methods. Super Resolution (SR) is a highly interesting research field and many ideas and methods have been proposed, some of which have the potential to actually enhance the resolution. However, these ideas have not been widely discussed in the frequency domain. A new signal processing method that creates components exceeding the Nyquist frequency is proposed. The simulation results are discussed with regard to time domain as well as to the frequency domain.
Year
DOI
Venue
2012
10.1145/2155555.2155563
MMSys
Keywords
Field
DocType
video image quality,time domain,new signal processing method,nyquist frequency,frequency domain,frequency spectrum,improving video image resolution,real time,super resolution,conventional linear signal processing,sharpness circuit,edge enhancement,image quality,television,image,image resolution,signal processing,cost efficiency
Frequency domain,Multidimensional signal processing,Oversampling,Nyquist frequency,Computer science,Image processing,Filter (signal processing),Sub-pixel resolution,Electronic engineering,Aliasing
Conference
Citations 
PageRank 
References 
6
1.10
1
Authors
1
Name
Order
Citations
PageRank
Seiichi Gohshi17118.16