Human eye movement modelling is a new, challenging, and promising research topic in computer vision. Human eye movement modelling aims at simulating the scan path in which a human being views an image, scene, or video. The successful modelling of human eye movements potentially benefits a wide range of applications such as image retrieval, image annotation, medical image diagnosis, and human vi...

BACKGROUND The aims of this study were to investigate the image quality and radiation exposure of pediatric protocols for cardiac CT angiography (CTA) in infants under one year of age. METHODOLOGY/PRINCIPAL FINDINGS Cardiac CTA examinations were performed using an anthropomorphic phantom representing a 1-year-old child scanned with non-electrocardiogram-gated (NG), retrospectively electrocard...

Figure 2 – Reformatted images showing the main coronary arteries of two subjects. Subject 1: 2D Affine + translational motion correction gives superior image quality compared to both 2D translational correction and a gated scan (with ~3x reduction in scan time). Subject 2: 2D motion correction gives similar image quality to the gated scan with ~2x reduction in scan time. Affine correction shows...

We compared the pre-injection transmission scan with the simultaneous emission/transmission scan (SET) using a body phantom in positron emission tomography (PET) to study the factors affecting emission (EMIS) images with different transmission (TRAN) data. The results showed that total count, region, scan method, and EMIS component influenced the bias and noise statistics. This influence was fu...

BACKGROUND Transthoracic echocardiographic examinations in women with large breasts are technically demanding and can lead to suboptimal image quality, excessive scan time, and cause pain and discomfort to patients. OBJECTIVE Evaluate the effects of self-made breast sling used during transthoracic echocardiographic examination on scanning time, image quality, pain, and satisfaction in women w...

Detecting the watermark from the rescanned image is still a challenging problem, especially for high resolution image. After printing and scanning, an image usually suffers global geometric distorts ( such as rotation, scaling, translation and cropping), local random nonlinear geometric distortions which is simulated in Random Bending function of Stirmark, as well as nonlinear pixel value disto...