virtual colonialism (ameli, 2011) is reflecting a new trend of colonialismin the virtual space parallel to the physical space. according to ameli(2007), withthe “dual spacization” of life,the imperial powers like the united states of americatake the advantage of the synchronization and translocality of the virtual space toexpand their realm of imperial power through the “attraction” and “persua...

BACKGROUND Virtual colonoscopy is a potentially powerful tool for non-invasive colorectal evaluation. In vitro studies have established its accuracy in simulated polyp detection but little data exist regarding its use in clinical practice. AIMS To evaluate the ability of virtual colonoscopy to detect colorectal cancers and polyps in patients with endoscopically proven colorectal neoplasms and...

This paper presents a novel method to tie geometric boundary representation (BREP) to voxel-based collision detection for use in haptic manual assembly simulation. Virtual Reality, in particular haptics, has been applied with promising results to improve preliminary product design, assembly prototyping and maintenance operations. However, current methodologies do not provide support for low cle...

bstractMost current computer-aided detection (CAD) gorithms for the fully automatic detection of colonic polyps om 3D CT data suffer from high false positive rates. We eveloped and evaluated a post-processing algorithm to decrease e false positive rate of such a method. Our method attempts to odel the way a radiologist recognizes a polyp while scrolling a oss-sectional plane through 3D CT data ...