Estimating the size of an object captured with error

• Published in: Central European journal of operations research Vol. 26; no. 3; pp. 771 - 781
• Main Authors: Hamedović, Safet, Benšić, Mirta, Sabo, Kristian, Taler, Petar
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.09.2018; Springer; Springer Nature B.V
• Subjects: Bones; Business and Management; Confidence intervals; Errors; Estimation; Fluorescence; Image processing; Methods; Normal distribution; Operations research; Operations Research/Decision Theory; Original Paper; Statistical analysis; Statistical tests; Bosnia and Herzegovina; Maximum likelihood estimator; Uniform distribution; Laplace distribution; Normal distribution; Additive error; Noisy image
• ISSN: 1435-246X; 1613-9178
• DOI: 10.1007/s10100-017-0504-9

In many applications we are faced with the problem of estimating object dimensions from a noisy image. Some devices like a fluorescent microscope, X-ray or ultrasound machines, etc., produce imperfect images. Image noise comes from a variety of sources. It can be produced by the physical processes of imaging, or may be caused by the presence of some unwanted structures (e.g. soft tissue captured in images of bones). In the proposed models we suppose that the data are drawn from uniform distribution on the object of interest, but contaminated by an additive error. Here we use two one-dimensional parametric models to construct confidence intervals and statistical tests pertaining to the object size and suggest the possibility of application in two-dimensional problems. Normal and Laplace distributions are used as error distributions. Finally, we illustrate ability of the R-programs we created for these problems on a real-world example.