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One challenge in laparoscopic cholecystectomy surgery simulation is to construct a fast and accurate deformable gallbladder model. This paper proposed an improved multi-layer mass-spring modeling method which can adapt well to the built-in accelerating algorithms in PhysX-engine of GPU. A multi-layer mass-spring model was constructed based on the surface mesh of a gallbladder. The inner layers of...
A challenge in virtual reality based laparoscopic cholecystectomy simulation is to construct a fast and accurate deformable gallbladder model. This paper proposes a multi-layer mass-spring model which can adapt well to the built-in accelerating algorithms in PhysX-engine of GPU. The gallbladder is first segmented from clinical CT images. A multi-layer model based on the anatomical structure of gallbladder...
Facing the increasing needs for large-scale, robust, adaptive, and distributed/decentralized computing capabilities from such fields as Web intelligence, scientific and social computing, Internet commerce, and pervasive computing, an unconventional bottom-up paradigm, based on the notions of Autonomy-Oriented Computing (AOC) and self-organization in open complex systems, offers new opportunities for...
This paper describes a multisensory interface in which continuous contact sound effects of userpsilas actions on virtual objects are synthesized and rendered with haptic and visual stimuli. The auditory output is generated by convolving the force profile with the impulse response of an object, thus tightly coupled with the haptic output. Since each action, such as striking, scratching, and inhibiting,...
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