{ "id": "1603.06336", "version": "v1", "published": "2016-03-21T06:45:51.000Z", "updated": "2016-03-21T06:45:51.000Z", "title": "A unified approach to the well-posedness of some non-Lambertian models in Shape-from-Shading theory", "authors": [ "Fabio Camilli", "Simone Tozza" ], "categories": [ "math.AP" ], "abstract": "In this paper we show that the introduction of an attenuation factor in the %image irradiance brightness equations relative to various perspective Shape from Shading models allows to make the corresponding differential problems well-posed. We propose a unified approach based on the theory of viscosity solution and we show that the brightness equations with the attenuation term admit a unique viscosity solution. We also discuss in detail the possible boundary conditions that we can use for the Hamilton-Jacobi equations associated to these models.", "revisions": [ { "version": "v1", "updated": "2016-03-21T06:45:51.000Z" } ], "analyses": { "keywords": [ "unified approach", "non-lambertian models", "shape-from-shading theory", "well-posedness", "attenuation term admit" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2016arXiv160306336C" } } }