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Measuring visual axis on the eye closure will play one of important roles to investigate the brain function during sleep. It has been investigated using a simultaneous measurement system composed of functional MRI and infrared-video which takes palpebra images with eye closure. Although there are some methods for measuring visual axis from video images, they cannot be applied to estimate visual axis...
Estimation of visual axis during sleep has been attracting a considerable attention. A simultaneous measurement system composed of functional MRI and infrared-video has been developed to investigate a relationship between eye-movement and brain function during sleep. Although there are some methods for measuring visual axis of opening eyes from video images, they cannot be applied to estimate visual...
Volume visualization of cerebral blood vessels is highly significant for diagnosis of the cerebral diseases. It is because the automated segmentation of the blood vessels from an MR angiography (MRA) image is a knotty problem that there are few works on it. This paper proposes an automated method to segment the blood vessels from 3D time of flight (TOF) MRA volume data. The method consists of: (1)...
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