Realistic deformation of 3D human blood vessels

Abstract

We present a real‐time algorithm for realistically deforming 3D human blood vessels, while automatically detecting and avoiding interference among a large number of blood vessels under deformation. Sweep surfaces are employed for this purpose. Using a dynamic bounding volume hierarchy, specially designed for sweep surfaces, we support collision detection and other related geometric computations in real time. Copyright © 2013 John Wiley & Sons, Ltd.

Interactive tree modeling and deformation with collision detection and avoidance

“…Figure shows the 3D tree models that have been employed for this experiment. Employing the algorithm of Park et al , we extract the skeleton of tree and generated the trajectory curve T ( s ). We recorded the relative position and orientation of each leaf with respect to the moving frame along T ( s ), and the leaves are then smoothly transformed according to the deformation of each branch to which they belong.…”

“…Hyun et al and Lee and Kim employed sweep surfaces as a useful tool for human body and hand deformation. Using a dynamic BVH similar to ours, a recent work of Park et al demonstrated a sweep‐based real‐time collision detection and avoidance system for human blood vessels under deformation. Nevertheless, collisions in human anatomy applications occur mainly in joint areas such as knees and elbows.…”

“…Assuming the skeleton representation of trees, which can be extracted from their mesh models using conventional techniques , we attack the collision detection problem for a large number of tree branches under deformation, where the tube‐like branches interact with each other in a highly complex manner. Essential to the development of such an algorithm is the design of an optimal spatial data structure for the tube‐like branches represented as B‐spline sweep surfaces.…”

GPU‐assisted real‐time coupling of blood flow and vessel wall

“…Paolo Crosetto calculated WSS distribution during the blood vessel coupling by setting up different blood flow boundary conditions. Jaesung Park and A.Yureidini et al have carried out many works on vessel modeling. A.Yureidini put forth an approach to reconstruct vessels from point data.…”

“…A.Yureidini put forth an approach to reconstruct vessels from point data. Jaesung Park et al designed an approach to simulate real‐time three‐dimensional (3D) human blood vessel deformation using a dynamic bounding volume hierarchy, specially designed for sweep surfaces; their method supported collision detection and other related geometric computations in real time.…”