Title of thesis: DOSE AND IMAGE QUALITY CONSIDERATIONS IN COMPUTED TOMOGRAPHY Samir F Abboud, Master of Science, 2011 Thesis directed by: Professor Iacovos Kyprianou Department of Bioengineering The increased use of Computed Tomography as an imaging modality is of concern because of the growing body of evidence linking radiation exposure to cancer incidence. However, a framework does not yet ex...

0167-8655/$ see front matter 2011 Elsevier B.V. A doi:10.1016/j.patrec.2011.05.013 ⇑ Corresponding author. E-mail addresses: [email protected] (Z. H (W. Sun), [email protected] (W. Lu). Image splicing is very common and fundamental in image tampering, which severely threatens the integrity and authenticity of images. As a result, the detection of image splicing is of great importance...

Image steganography is used to embed covert messages in the form of files, text, or other images in digital images. The intent is to transmit hidden information. Steganalysis is the process used to detect hidden messages in images. Although steganography is not a new discipline, it has become increasingly important in today’s digital world where information is often and easily exchanged through...

The H.264 video coding standard achieves high performance compression and image quality at the expense of increased encoding complexity. Consequently, several fast mode decision and motion estimation techniques have been developed to reduce the computational cost. These approaches successfully reduce the computational time by reducing the image quality and/or increasing the bitrate. In this pap...

In this paper we propose the use of a local image transformation involving radial basis functions for landmark-based registration of medical images. More precisely, we consider radial basis functions as nodal functions in the modified Shepard method. In this way we obtain an image transformation more accurate and stable than the one given by the global radial basis functions, as shown by numeri...

Why do some images stick in our minds while others fade away? Recent work suggests that this is partially due to intrinsic differences in image content (Isola 2011, Bainbridge 2013, Borkin 2013). However, the context in which an image appears can also affect its memorability. Previous studies have found that images that are distinct, interfere less with other images in memory and are thus bette...

the current study aims to identify the effective factors and barriers to loyalty in electronic banking services in the private banks customers. for this purpose, a survey was done with a questionnaire sampling from 420 customers of private banks in golestan province, who have used electronic banking services in 2011. the results indicated that seven factors including preference, customer satisf...

Palmprint Recognition Using Image Processing Written by Administrator Wednesday, 16 March 2011 08:58 Last Updated Monday, 21 March 2011 07:23 In today’s world, biometrics system is used almost everywhere for the security and personal recognition. The palmprint is one of the most reliable physiological characteristics that can be used to distinguish between individuals. The primary objective of ...

OBJECTIVE The objective of our study was to evaluate the effect of organ-based tube current modulation and bismuth shielding on image quality and breast radiation dose in women undergoing low-dose chest CT. SUBJECTS AND METHODS From March 2011 through July 2011, 80 women prospectively underwent low-dose chest CT to screen for lung cancer. The patients were randomly assigned to a control group...