Walsh–Hadamard analysis applied to the study of light propagation in a tapered gradient-index medium

Trabocchi, Osvaldo; Gómez-Reino, Carlos

doi:10.1364/josaa.21.000388

Cited by 2 publications

(1 citation statement)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To answer this question, we first analyze the spectrum of the trajectories of some non-rigid feature points and two typical wavelet trajectory bases, DCT 10,17 and WHT. 8,22 Then the error in the representation results of these trajectories by the two trajectory bases are investigated.…”

Section: Analysis Of Trajectory Representation Modelmentioning

confidence: 99%

Analysis of wavelet basis selection in optimal trajectory space finding for 3D non-rigid structure from motion

Wang

Cheng

Zheng

et al. 2014

Int. J. Wavelets Multiresolut Inf. Process.

View full text Add to dashboard Cite

Trajectory representation model has been proposed to describe non-rigid deformation. An optimal trajectory space finding algorithm for 3D non-rigid structure from motion (OTSF-NRSFM) based on this model also has been proposed. However, the influence of the wavelet basis selection on the OTSF-NRSFM algorithm has still not been studied. To help OTSF-NRSFM researchers select wavelet basis properly, we investigated the influences of wavelet basis selection. Two typical wavelet bases, DCT basis and WHT basis, are discussed in this paper. The spectrum properties of wavelet basis and feature point trajectory, trajectory representation results on synthetic shark data, OTSF-NRSFM reconstruction results on synthetic data and real data are analyzed. The results show that the wavelet selection has much influence on OTSF-NRSFM reconstruction results of some non-rigid feature points, which have complicated trajectory. This paper gives researchers some inspiration about wavelet basis selection in OTSF-NRSFM algorithm.

show abstract

Section: Analysis Of Trajectory Representation Modelmentioning

confidence: 99%