下載電子全文宣告This thesis is authorized to indicate in-campus access only
You can not download at the moment.
Your IP address is 22.214.171.124
The defense date of the thesis is 2010-09-06
The current date is 2019-02-22
This thesis will be accessible at off-campus not accessible
URN etd-0903110-135145 Statistics This thesis had been viewed 1244 times. Download 5 times. Author Yu-wei Chen Author's Email Address No Public. Department Computer Science and Enginerring Year 2009 Semester 2 Degree Master Type of Document Master's Thesis Language English Page Count 63 Title A Geometry-Distortion Resistant Image Detection System Based on Log-Polar Transform and Scale Invariant Feature Transform Keyword Geometry-Distortion Image Detection System Image Detection System Geometry-Distortion Abstract In many image detection systems, the detection results are superior to tamper distortion. However, the geometric distortions rearrange the feature positions, and this property often affects the results of feature comparison. In this thesis, the presented scheme aims at resisting the geometric distortions.
The scheme contains the feature construction phase and the comparison phase. In the feature construction phase, the scheme extracts unique features from each protected image based on Log Polar Transform and Scale Invariant Feature Transform. In the comparison phase, the scheme extracts features from the suspect image to compare each protected image.
Furthermore, this paper also focuses on similar image identification. There are two types of similar image that the scheme aims. The first type is that there are similar objects in two images. The second type is different view images. These two types of images are serious issue for feature comparison. Hence, this paper presents a scheme to solve this problem.
Advisor Committee Shang-lin Hsieh - advisor
none - co-chair
none - co-chair
Files Date of Defense 2010-07-29 Date of Submission 2010-09-06