This paper investigates methods of assessing retinal image quality. This is the first step of a larger research programme for computer assisted screening of diabetic retinopathy images. It is based on automatic detection of blood vessels using two techniques: blood vessel detection and K-means cluster. The algorithms are explained and the results obtained from a sample of 80 images. It was foun...

Background: Arterial sampling in PET studies for the purposes of kinetic modeling remains an invasive, time-intensive, and expensive procedure. Alternatives to derive blood time-activity curve (BTAC) are either reliant on large vessels field view or laborious implement prone many processing errors. An alternative method is proposed by simulation a non-invasive coincidence detection unit.

Abstract Background The additional information that transcranial Doppler can provide as part of a multimodal imaging protocol in many clinical settings has not been evaluated. Main body Transcranial is bedside procedure used to assess cerebral blood flow velocity via circulation and pulsatility index (PI). Many diseases lead vessels vasospasm subarachnoid hemorrhage trauma. Cerebral represented...

Retinal images play vital role in several applications such as disease diagnosis and human recognition. They also play a major role in early detection of diabetics by comparing the states of the retinal blood vessels. The detection of blood vessels from the retinal images is a tedious process. In this work a new algorithm to detect the blood vessels effectively has been proposed. Initially enha...

Automatic Detection of Exudates and Microaneurysms from Non-Dilated Diabetic Retinopathy Retinal Images S.Sankaranarayanan, Dr.,M.Anto Bennet Department of Electronics and Communication Engineering, VELTECH Avadi-Chennai600062, Tamilnadu, India __________________________________________________________________________________________ Abstract: Exudates are one of the earliest and most prevalent...

Vessel monitoring and surveillance is important for maritime safety and security, environment protection and border control. Ship monitoring systems based on Synthetic-aperture Radar (SAR) satellite images are operational. On SAR images the ships made of metal with sharp edges appear as bright dots and edges, therefore they can be well distinguished from the water. Since the radar is independen...