Appearance Sampling of Real Objects for Variable Illumination
نویسندگان
چکیده
منابع مشابه
Appearance Sampling for Obtaining A Set of Basis Images for Variable Illumination
Previous studies have demonstrated that the appearance of an object under varying illumination conditions can be represented by a low-dimensional linear subspace. A set of basis images spanning such a linear subspace can be obtained by applying the principal component analysis (PCA) for a large number of images taken under different lighting conditions. While the approaches based on PCA have be...
متن کاملReal-Time Global Illumination of Deformable Objects
Existing real-time rendering methods for global illumination use precomputation to simplify runtime computations, but constrain scene geometry to be rigid. This constraint greatly restricts the practical application of these techniques to interactive graphics. This research uses a data-driven approach to support real-time rendering of global illumination effects on deformable surfaces under low...
متن کاملAnimating Real Objects with Image-Based Illumination
We describe a new paradigm for three-dimensional computer graphics, using projectors to graphically animate physical objects in the real world. The idea is to replace a physical object—with its inherent color, texture, and material properties—with a neutral object and projected imagery, reproducing the original (or alternative) appearance directly on the object. Because the approach is to effec...
متن کاملA real-time variable sampling technique: DIEM
We describe a sampling technique particularly suitable for active vision: Dimensionally-Independent Exponential Mapping (DIEM), in which each dimension of the original data is sampled in an exponentially increasing or decreasing series of steps, with bilateral symmetry about the data mid-point. Multidimensional data sampling is achieved by combining single dimension sampling coordinates. DIEM i...
متن کاملEfficient, image-based appearance acquisition of real-world objects
Two ingredients are necessary to synthesize realistic images: an accurate rendering algorithm and, equally important, high-quality models in terms of geometry and reflection properties. In this dissertation we focus on capturing the appearance of real world objects. The acquired model must represent both the geometry and the reflection properties of the object in order to create new views of th...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: International Journal of Computer Vision
سال: 2007
ISSN: 0920-5691,1573-1405
DOI: 10.1007/s11263-007-0036-1