Astatistical performance in dicator in some image processing problems / Chang Yun Fah

Chang, Yun Fah (2012) Astatistical performance in dicator in some image processing problems / Chang Yun Fah. PhD thesis, University of Malaya.

[img]
Preview
PDF
Download (22Kb) | Preview
    [img]
    Preview
    PDF
    Download (153Kb) | Preview
      [img]
      Preview
      PDF
      Download (182Kb) | Preview
        [img]
        Preview
        PDF
        Download (724Kb) | Preview
          [img]
          Preview
          PDF
          Download (249Kb) | Preview
            [img]
            Preview
            PDF
            Download (349Kb) | Preview
              [img]
              Preview
              PDF
              Download (426Kb) | Preview
                [img]
                Preview
                PDF
                Download (643Kb) | Preview
                  [img]
                  Preview
                  PDF
                  Download (5Mb) | Preview
                    [img]
                    Preview
                    PDF
                    Download (674Kb) | Preview
                      [img]
                      Preview
                      PDF
                      Download (172Kb) | Preview
                        [img]
                        Preview
                        PDF
                        Download (1067Kb) | Preview
                          [img]
                          Preview
                          PDF (Full Text)
                          Download (10Kb) | Preview

                            Abstract

                            The ability to compare or relate two digital images may be useful in developing performance evaluation algorithms. This thesis investigates the use of a particular correlation measure, 2 p R developed from the multidimensional unreplicated linear functional relationship (MULFR) model with single slope, as a measure or indicator of performance. This MULFR model is an extended version of the ULFR model introduced by Adcock in 1877. A literature survey was carried out showing that 2 p R has not been used before. The coefficient 2 p R was investigated in its ability to handle the issues of non-perfect reference image, multiple image attributes and combining image local-global information simultaneously. This survey is followed with the maximum likelihood estimation of parameters and a brief discussion of some theoretical properties of 2 p R . To investigate robust properties of 2 p R , an extensive simulation exercise was then carried out. Promising results, thus far, motivate the use of 2 p R in two image analysis problems; firstly a character recognition problem and secondly a particular data compression problem. In a handwritten Chinese character recognition problem, the 2 p R achieved the highest recognition rates even the pre-processing stage is removed from the recognition system. A substantial reduction of processing time, approximately 40.36% to 75.31%, was achieved using 2 p R . In JPEG compression problem, 2 p R is used as a measure of image quality which in turn indicates the performance of the compression method. It is shown that 2 p R performs well and satisfies the monotonicity, accuracy and consistency properties when perfect reference image was used. 2 p R was also shown to perform better than some frequently used similarity measures when imperfect reference image was used.

                            Item Type: Thesis (PhD)
                            Additional Information: Thesis (Ph.D.) – Faculty of Science, University of Malaya, 2012.
                            Uncontrolled Keywords: Astatistical performance in dicator
                            Subjects: Q Science > Q Science (General)
                            Divisions: Faculty of Science
                            Depositing User: Mrs Nur Aqilah Paing
                            Date Deposited: 19 Mar 2016 09:32
                            Last Modified: 19 Mar 2016 09:32
                            URI: http://studentsrepo.um.edu.my/id/eprint/6201

                            Actions (For repository staff only : Login required)

                            View Item