Digital video enhancement and denoising
Dissertant
University
University of Technology
Faculty
-
Department
Department of Electrical Engineering
University Country
Iraq
Degree
Master
Degree Date
2006
English Abstract
This thesis focuses on point-wise degradations, i.e., considering noise in video sequences.
White Gaussian additive noise is a commonly standard applied model to represent the noise as obtained in video signals under weak antenna signal conditions and AM (VSB) modulation.
After capturing noisy video scenes and extracting frames from these video files by Adobe after Effect software, the proposed algorithms enhance and deny the extracting frames.
A noise removal method have been proposed for color image sequences named by (3ADENCs), based on coupled spatial and temporal anisotropic diffusions.
In both cases, diffusion speed is determined by medium-specific (space or time) discontinuities detector.
Spatial discontinuities are measured via luminous gradient norm and it is important in stopping diffusion in edge area; while an (adaptive motion detection) was propose to detect temporal discontinuities and it is used in stopping diffusion in motion area.
The main advantages of this method is that it allows PDE formalism to provide fast yet stable algorithms and removes noise efficiently with high PSNR value.
To complete this work, a developed technique for spatiotemporal noise level estimation was proposed, that is more accurate and the least sensitive than varying noise levels and image sequence content among others.
Main Subjects
Information Technology and Computer Science
Topics
American Psychological Association (APA)
abd al-Ghani, Fatin Zakariyya. (2006). Digital video enhancement and denoising. (Master's theses Theses and Dissertations Master). University of Technology, Iraq
https://search.emarefa.net/detail/BIM-305887
Modern Language Association (MLA)
abd al-Ghani, Fatin Zakariyya. Digital video enhancement and denoising. (Master's theses Theses and Dissertations Master). University of Technology. (2006).
https://search.emarefa.net/detail/BIM-305887
American Medical Association (AMA)
abd al-Ghani, Fatin Zakariyya. (2006). Digital video enhancement and denoising. (Master's theses Theses and Dissertations Master). University of Technology, Iraq
https://search.emarefa.net/detail/BIM-305887
Language
English
Data Type
Arab Theses
Record ID
BIM-305887