• Publications
  • Influence
Attribute and simile classifiers for face verification
TLDR
Two novel methods for face verification using binary classifiers trained to recognize the presence or absence of describable aspects of visual appearance and a new data set of real-world images of public figures acquired from the internet. Expand
Shape from Focus
  • S. Nayar, Y. Nakagawa
  • Mathematics, Computer Science
  • IEEE Trans. Pattern Anal. Mach. Intell.
  • 1 August 1994
TLDR
The shape from focus method presented here uses different focus levels to obtain a sequence of object images and suggests shape fromfocus to be an effective approach for a variety of challenging visual inspection tasks. Expand
Reflectance and texture of real-world surfaces
TLDR
The visual appearance of real-world surfaces and the dependence of appearance on imaging conditions is investigated and a BRDF (bidirectional reflectance distribution function) database with reflectance measurements for over 60 different samples, each observed with over 200 different combinations of viewing and source directions is presented. Expand
Visual learning and recognition of 3-d objects from appearance
TLDR
A near real-time recognition system with 20 complex objects in the database has been developed and a compact representation of object appearance is proposed that is parametrized by pose and illumination. Expand
Generalized Assorted Pixel Camera: Postcapture Control of Resolution, Dynamic Range, and Spectrum
TLDR
A comprehensive optimization method to arrive at the spatial and spectral layout of the color filter array of a GAP camera is presented and a novel algorithm for reconstructing the under-sampled channels of the image while minimizing aliasing artifacts is developed. Expand
Radiometric self calibration
  • T. Mitsunaga, S. Nayar
  • Computer Science
  • Proceedings. IEEE Computer Society Conference on…
  • 23 June 1999
TLDR
A simple algorithm is described that computes the radiometric response function of an imaging system, from images of an arbitrary scene taken using different exposures, to fuse the multiple images into a single high dynamic range radiance image. Expand
Contrast Restoration of Weather Degraded Images
TLDR
A physics-based model is presented that describes the appearances of scenes in uniform bad weather conditions and a fast algorithm to restore scene contrast, which is effective under a wide range of weather conditions including haze, mist, fog, and conditions arising due to other aerosols. Expand
Vision and the Atmosphere
TLDR
This work studies the visual manifestations of different weather conditions, and model the chromatic effects of the atmospheric scattering and verify it for fog and haze, and derives several geometric constraints on scene color changes caused by varying atmospheric conditions. Expand
A Theory of Single-Viewpoint Catadioptric Image Formation
  • S. Baker, S. Nayar
  • Computer Science
  • International Journal of Computer Vision
  • 16 November 1999
TLDR
This paper derives the complete class of single-lens single-mirror catadioptric sensors that have a single viewpoint, and describes all of the solutions in detail, including the degenerate ones, with reference to many of the catadi optric systems that have been proposed in the literature. Expand
FaceTracer: A Search Engine for Large Collections of Images with Faces
TLDR
The first image search engine based entirely on faces, which shows state-of-the-art classification results compared to previous works, and demonstrates the power of the architecture through a functional, large-scale face search engine. Expand
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