All Outputs (24)

Facial reconstruction and alignment using photometric stereo and surface fitting (2009)
Journal Article
Farooq, A. R., Atkinson, G., Smith, M., & Smith, L. (2009). Facial reconstruction and alignment using photometric stereo and surface fitting. Lecture Notes in Artificial Intelligence, 5524 LNCS, 88-95. https://doi.org/10.1007/978-3-642-02172-5_13

This paper presents a novel 3D face shape capture device suitable for practical face recognition applications. A new surface fitting based face alignment algorithm is then presented to normalise the pose in preparation for recognition. The 3D data ca... Read More about Facial reconstruction and alignment using photometric stereo and surface fitting.

Two-dimensional BRDF estimation from polarisation (2008)
Journal Article
Atkinson, G., & Hancock, E. R. (2008). Two-dimensional BRDF estimation from polarisation. Computer Vision and Image Understanding, 111(2), 126-141. https://doi.org/10.1016/j.cviu.2007.09.005

This paper presents a novel technique for reflectance function (BRDF) estimation, which uses polarisation information and photometric stereo. The first stage of the technique is standard and involves the acquisition of polarisation information (angle... Read More about Two-dimensional BRDF estimation from polarisation.

Shape estimation using polarization and shading from two views (2007)
Journal Article
Hancock, E. R., & Atkinson, G. (2007). Shape estimation using polarization and shading from two views. IEEE Transactions on Pattern Analysis and Machine Intelligence, 29(11), 2001-2017. https://doi.org/10.1109/TPAMI.2007.1099

This paper presents a novel method for 3D surface reconstruction that uses polarization and shading information from two views. The method relies on polarization data acquired using a standard digital camera and a linear polarizer. Fresnel theory is... Read More about Shape estimation using polarization and shading from two views.

Recovery of surface orientation from diffuse polarization (2006)
Journal Article
Hancock, E. R., & Atkinson, G. (2006). Recovery of surface orientation from diffuse polarization. IEEE Transactions on Image Processing, 15(6), 1653-1664. https://doi.org/10.1109/TIP.2006.871114

When unpolarized light is reflected from a smooth dielectric surface, it becomes partially polarized. This is due to the orientation of dipoles induced in the reflecting medium and applies to both specular and diffuse reflection. This paper is concer... Read More about Recovery of surface orientation from diffuse polarization.