CRV
2011
IEEE
12 years 4 months ago
2011
IEEE
—We present an algorithm that finds the rotation which best aligns a given configuration of directions on an unsorted set of directions. Using a cost function that we derive in...
ICASSP
2011
IEEE
12 years 8 months ago
2011
IEEE
A method is proposed for simulating the sound pressure signals on a spherical microphone array in a reverberant enclosure. The method employs spherical harmonic decomposition and ...
PR
2007
13 years 4 months ago
2007
This paper describes an approach of representing 3D shape by using a set of invariant Spherical Harmonic (SH) coefficients after conformal mapping. Specifically, a genus-zero 3D ...
PAMI
2002
13 years 4 months ago
2002
We analyze theoretically the subspace best approximating images of a convex Lambertian object taken from the same viewpoint, but under different distant illumination conditions. Si...
MOC
2002
13 years 4 months ago
2002
The spectral method with discrete spherical harmonics transform plays an important role in many applications. In spite of its advantages, the spherical harmonics transform has a dr...
DAGM
2001
Springer
13 years 9 months ago
2001
Springer
We consider 3D object retrieval in which a polygonal mesh serves as a query and similar objects are retrieved from a collection of 3D objects. Algorithms proceed first by a normal...
RT
2004
Springer
13 years 9 months ago
2004
Springer
Spherical harmonics are often used for compact description of incident radiance in low-frequency but distant lighting environments. For interaction with nearby emitters, computing...
ICMCS
2005
IEEE
13 years 10 months ago
2005
IEEE
In this paper, spherical harmonics are proposed as shape descriptors for 2d images. We introduce the concept of connectivity; 2d images are decomposed using connectivity which is ...
ICCV
2005
IEEE
13 years 10 months ago
2005
IEEE
Recognition of specular objects is particularly difficult because their appearance is much more sensitive to lighting changes than that of Lambertian objects. We consider an appr...
3DPVT
2006
IEEE
13 years 10 months ago
2006
IEEE
The spherical harmonic (SPHARM) description is a powerful surface modeling technique that can model arbitrarily shaped but simply connected three dimensional (3D) objects. Because...