Cortical multiscale line-edge disparity model

• Author(s): Rodrigues, J. M. F. ; Martins, Jaime A. ; Lam, Roberto Célio Lau ; du Buf, J. M. H.
• Date: 2012
• Persistent ID: http://hdl.handle.net/10400.1/2095
• Origin: Sapientia - Universidade do Algarve
• Subject(s): Visão humana; Visão computacional; Córtex
• Document Type: Part of book or chapter of book
• Language: English

Description

Most biological approaches to disparity extraction rely on the disparity energy model (DEM). In this paper we present an alternative approach which can complement the DEM model. This approach is based on the multiscale coding of lines and edges, because surface structures are composed of lines and edges and contours of objects often cause edges against their background. We show that the line/edge approach can be used to create a 3D wireframe representation of a scene and the objects therein. It can also significantly improve the accuracy of the DEM model, such that our biological models can compete with some state-of-the-art algorithms from computer vision.