Shigeki Sugimoto

Learn More
We investigate the interactions among the pion, the vector mesons and the external gauge fields in the holographic dual of massless QCD proposed in our previous paper [1] on the basis of probe D8-branes embedded into a D4-brane background in type IIA string theory. We obtain the coupling constants by performing both analytic and numerical calculation, and(More)
A great variety of computer vision tasks, such as rigid/nonrigid structure from motion and photometric stereo, can be unified into the problem of approximating a lowrank data matrix in the presence of missing data and outliers. To improve robustness, the L1-norm measurement has long been recommended. Unfortunately, existing methods usually fail to minimize(More)
We consider aspects of dynamical baryons in a holographic dual of QCD that is proposed on the basis of a D4/D8-brane configuration. We construct a soliton solution carrying a unit baryon number and show that it is given by an instanton solution of four-dimensional Yang-Mills theory with fixed size. The Chern-Simons term on the flavor D8-branes plays a(More)
In this paper, we revisit the classical perspective-n-point (PnP) problem, and propose the first non-iterative O(n) solution that is fast, generally applicable and globally optimal. Our basic idea is to formulate the PnP problem into a functional minimization problem and retrieve all its stationary points by using the Gr"obner basis technique. The novelty(More)
A great variety of computer vision tasks, such as rigid/nonrigid structure from motion and photometric stereo, can be unified into the problem of approximating a low-rank data matrix in the presence of missing data and outliers. To improve robustness, the L<sub>1</sub>-norm measurement has long been recommended. Unfortunately, existing methods usually fail(More)
In this paper, we revisit the pose determination problem of a partially calibrated camera with unknown focal length, hereafter referred to as the PnPf problem, by using n(n &#x2265; 4) 3D-to-2D point correspondences. Our core contribution is to introduce the angle constraint and derive a compact bivariate polynomial equation for each point triplet. Based on(More)