Hiromasa Suzuki

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We propose a new method for producing unfolded papercraft patterns of rounded toy animal figures from triangulated meshes by means of strip-based approximation. Although in principle a triangulated model can be unfolded simply by retaining as much as possible of its connectivity while checking for intersecting triangles in the unfolded plane, creating a(More)
Recently, animations with deforming objects have been frequently used in various computer graphics applications. Metamorphosis (or morphing) of three-dimensional objects is one of the techniques which realizes shape transformation between two or more existing objects. In this paper, we present an efficient framework for metamorphosis between two(More)
The objective of this research is to apply the subdivision surface for surface fitting problems when generating surfaces from data points or polyhedral models. The basic idea is to use the subdivision limit position (SLP) to adapt the control mesh of the subdivision surface to the data points. This method is not a time consuming process involving global(More)
This paper proposes a new mesh modeling scheme, called mesh fusion, based on three-dimensional (3D) meshbased metamorphosis. We establish the attachment from a part of one mesh to a part of another with smooth boundaries, employing the traditional cutting and pasting operation in conjunction with a combination of meshes, applying the idea of 3D(More)
Animations with deforming objects are frequently used in computer graphics applications. Metamorphosis (or morphing) of 3D objects is one of the techniques that realize a shape transformation between two or more existing objects. We present a new algorithm for 3D geometric metamorphosis between two objects based on harmonic mapping. Our algorithm is(More)
A new algorithm is proposed for calculating the approximate shortest path on a polyhedral surface. The method mainly uses Dijkstra's algorithm and is based on selective refinement of the discrete graph of a polyhedron. Although the algorithm is an approximation, it has the significant advantages of being fast, easy to implement, high approximation accuracy,(More)
This work investigates differences in contrast enhancement of the aorta, portal vein and liver by two different concentrations of contrast materials using an automatic bolus tracking technique. Seventy patients were assigned randomly into one of two groups. Contrast materials with iodine concentrations of 300 and 370 mg/ml were administered to patients in(More)
BACKGROUND Global longitudinal strain (GLS) measured by two-dimensional speckle tracking imaging (2D-STI) has been shown to be useful for assessing subtle change in left ventricular function in severe aortic stenosis (AS) patients with preserved left ventricular ejection fraction (LVEF). However, there is little information about the relation between the(More)
Recently, animations with deforming objects are frequently used in various Computer Graphics applications. Metamorphosis (or morphing) of three dimensional objects is one of techniques which realize a shape transformation between existing two or more objects. We present a new algorithm for 3D geometric metamorphosis between two objects based on Harmonic(More)