In this paper, rotation, translation and luminance invariant features for texture image retrieval are investigated. The features are derived based on the statistical (standard deviation and shape parameter) distribution of the transform coefficients extracted from each steerable pyramid subband. By utilizing the proposed invariant features, the similarity measure between query and database imag...

This paper presents a novel face detection approach in color images. We employ spatial histograms as robust features for face detection. The spatial histograms consist of marginal distribution of color image information. Facial texture and shape are preserved by the spatial histogram representation. A hierarchical classifier combining histogram matching and support vector machine is utilized to...

This paper presents a probabilistic framework for robust recovery of dense 3D shape, motion, texture and lighting from monocular image streams. We assume that the object is smooth, Lambertian, illuminated by one distant light source, and subject to smoothly-varying rigid motion. The problem is formulated as a MAP estimation problem in which all shape, motion, noise variances and outlier probabi...

This paper proposes a method for extracting realistic textures from real-world reference spheres. The BRDF parameters of fundamental materials, as well as a material weight map for the sphere are obtained through a non-linear optimization process. The material weight map can be used as a conventional texture for relighting. With the BRDF models recovered, the real and natural appearances of 3D ...

Methods for the analysis of images of the same scene taken under three different lighting conditions are illustrated. A technique that separates the effects of geometry and surface coloration/texture in this “tri-luminal” environment is developed and experimental results are shown. Exploiting this technique to isolate geometric information, two methods which extract differential geometric prope...

This project will address the problem of creating mosaic maps of the seafloor using remotely-operated vehicles (ROV) or autonomous underwater vehicles (AUV) operated by the Monterey Bay Aquarium Research Institute (MBARI). The author believes that a number of shortcomings of the current system could be improved upon through the use of SIFT for image registration. Time permitting, the author wou...

Lighting plays a key role in night escapes of urban spaces, in a way that it can be effective in giving identity to them. By considering this importance and inexistence of a process for composing urban Lighting strategy made this study to be conducted by the objective of providing process for compilation of context-oriented lighting strategy in urban spaces. Reaching a suitable solution for Li...

lighting plays a key role in night escapes of urban spaces, in a way that it can be effective in giving identity to them. by considering this importance and inexistence of a process for composing urban lighting strategy made this study to be conducted by the objective of providing process for compilation of context-oriented lighting strategy in urban spaces. reaching a suitable solution for lig...