Neural computation approach for developing a 3-D shape reconstruction model

S. Y. Cho, T. W.S. Chow

Research output: Journal PublicationArticlepeer-review

24 Citations (Scopus)

Abstract

The shape from shading (SFS) problem refers to the well-known fact that most real images usually contain specular components and are affected by unknown reflectivity. In this paper, these limitations are addressed and a new neural-based three-dimensional (3-D) shape reconstruction model is proposed. The idea behind this approach is to optimize a proper reflectance model by learning the parameters of the proposed neural reflectance model. In order to do this, new neural-based reflectance models are presented. The FNN model is able to generalize the diffuse term, while the RBF model is able to generalize the specular term. A hybrid structure of FNN-based and RBF-based models is also presented because most real surfaces are usually neither Lambertian models nor ideally specular models. Experimental results, including synthetic and real images, are presented to demonstrate the performance of our approach given different specular effects, unknown illuminate conditions, and different noise environments.

Original languageEnglish
Pages (from-to)1204-1214
Number of pages11
JournalIEEE Transactions on Neural Networks
Volume12
Issue number5
DOIs
Publication statusPublished - Sep 2001
Externally publishedYes

Keywords

  • Neural-based reflectance model
  • Shape from shading (SFS)
  • Specular reflection

ASJC Scopus subject areas

  • Software
  • Computer Science Applications
  • Computer Networks and Communications
  • Artificial Intelligence

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