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The defense date of the thesis is 2013-09-05
The current date is 2019-07-20
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URN etd-0905113-103437 Statistics This thesis had been viewed 959 times. Download 0 times. Author Chun-cheng Peng Author's Email Address No Public. Department Electrical Engineering Year 2012 Semester 2 Degree Master Type of Document Master's Thesis Language zh-TW.Big5 Chinese Page Count 79 Title IMAGE INTERPOLATION BY APPLICATIONOF DISCRETE SINE TRANSFORM Keyword DISCRETE SIN IMAGE INTERPOLATION BY APPLICATION IMAGE INTERPOLATION BY APPLICATION DISCRETE SIN Abstract Interpolation has been widely utilized in the generally adapted techniques for image processing nowadays, such as polynomial interpolation and Discrete Fourier Transform with zero padding. Somehow there usually deficiencies exist within and further optimization is highly demanded for the even finer needs for the current visual applications.
In this treatise, it has been found and discovered that interpolation techniques with Discrete Sine/Cosine Transform perform satisfactorily on in image processing one-dimensional, especially the so-called DST-Ⅰ according to the experiments in this thesis.
Some limitations of DST-Ⅰfound in previously works have been alleviated by our team while the improved version of DST-Ⅱhas also been derived and been utilized in the interpolation techniques. The visual differences of processed images after enlargement would be displayed and compared between DST-Ⅰ & DST-Ⅱ in the later chapters.
The picture viewer software handy usually generate defects as enlarging the images, it would bring unpleasant experiences for some applications require visual details. Our Team has successfully improved the Discrete Sine Transform technique that previously not applicable to one-dimensional image processing and pleasant results have been obtained. The procedures and effects DST-Ⅰ & DST-Ⅱtechniques are depicted and the images after enlargement are also displayed and compared in this work..
Advisor Committee Chau-Yun Hsu; - advisor
none - co-chair
none - co-chair
Files Date of Defense 2013-07-29 Date of Submission 2013-09-05