An approach based on contourlet image fusion and reformulated fuzzy clustering for change detection in satellite images is introduced in this paper. In this approach fusion of images is used to produce difference image from log ratio and mean ratio images. An optimal difference image should retain the unchanged areas and show the changed areas. So contourlet image fusion is used to generate the...

Background: Prospectively electrocardiography (ECG)-triggered high-pitch spiral coronary computed tomography angiography (CCTA) is a unique scan mode for dual-source CT (DSCT). Our reports aim to compare image quality and radiation dose of CCTA using high-pitch spiral or sequential acquisition mode in patients with low and stable heart rates. Materials and Methods: Patients with low and stable ...

In digital image reproduction, it is often desirable to compute image difference of reproductions and the original images. The traditional CIE color difference formula, designed for simple color patches in controlled viewing conditions, is not adequate for computing image difference for spatially complex image stimuli. Zhang and Wandell [Proceedings of the SID Symposium, 1996; p 731–734] introd...

Objective: The human beings’ interest in beauty and improvement of their appearance might compel them to seek for cosmetic surgery. This study aimed to compare body image, self-esteem, and psychological problems between the applicants and non-applicants of cosmetic surgery in Iran. Methods: This was a cross-sectional study. A total of 200 participants were selected for this study (including 10...

six different Wavelet based Image Compression techniques are analyzed. The techniques involved in the comparison process are Embedded Zero tree Wavelet (ezw) , Set Partitioning In Hierarchical Trees (Spiht), Spatialorientation Tree Wavelet (stw), Wavelet Difference Reduction (wdr), Adaptively Scanned Wavelet Difference Reduction (aswdr) and Spiht_3d. Here, there are six types of Wavelet transfo...

The concept of body image has been the centre of attention for the past few decades. Every person has certain kind of view about his/her physical appearance; some people consider themselves attractive, others consider themselves “unattractive”. This attitude towards one’s body is actually our body image; the perception, thinking and feelings about one’s body and also how other perceives them. B...

The quality of human silhouettes has a direct effect on gait recognition performance. This paper proposes a robust dynamic gait representation scheme, frame difference energy image (FDEI), to suppress the influence of silhouette incompleteness. A gait cycle is first divided into clusters. The average image of each cluster is denoised and becomes the dominant energy image (DEI). FDEI representat...

Color image difference metrics are of great importance in the field of color image reproduction. In this study, we introduce an adaptive bilateral filter for predicting color image difference. This filter is simple, employing two Gaussian smoothing filters in different domains, which avoids the loss of edge information when smoothing the image. However, the challenge is to select appropriate pa...