• Publications
  • Influence
Parsing scale-space and spatial stability analysis
We present a new method for parsing scale-space, spatial stability analysis, that allows the localization of region boundaries from scale space. Expand
  • 58
  • 6
Discrimination thresholds in the two-dimensional spatial frequency domain
In two experiments we have determined the discriminability between two sinusoidal gratings as a function of orientation and spatial frequency differences. Twelve orientation (15 degrees steps) andExpand
  • 80
  • 5
Ecological fingerprinting of ecosystem succession: Estimating secondary tropical dry forest structure and diversity using imaging spectroscopy
Abstract We evaluated the use of EO-1 Hyperion hyperspectral satellite imagery for mapping structure and floristic diversity in a Neotropical tropical dry forest as a way of assessing a region'sExpand
  • 115
  • 5
Hyperspectral discrimination of tropical dry forest lianas and trees : Comparative data reduction approaches at the leaf and canopy levels
A dataset of spectral signatures (leaf level) of tropical dry forest trees and lianas and an airborne hyperspectral image (crown level) are used to test three hyperspectral data reduction techniquesExpand
  • 85
  • 5
  • Open Access
Discrimination of lianas and trees with leaf-level hyperspectral data
Lianas are an important component of the biological diversity in two tropical forests with contrasting moisture regimes in Panama. However, their presence in a tree crown may be a source of confusionExpand
  • 102
  • 5
Inverting an illumination model from range and intensity maps
Abstract We propose a solution to the problem of determining surface material properties from range and intensity data using a simplified version of the Torrance-Sparrow illumination model. TheExpand
  • 63
  • 4
Estimating leaf area index from satellite imagery using Bayesian networks
In this study, we investigated the use of Bayesian networks for inferring tropical dry forest leaf area index (LAI) from satellite imagery in dry and wet seasons. Expand
  • 49
  • 4
Three processing characteristics of visual texture segmentation.
  • T. Caelli
  • Psychology, Medicine
  • Spatial vision
  • 1985
Three mechanisms are outlined which are sufficient to determine texture segmentation or discrimination. They are: (1) convolution of detector profiles with the input image; (2) impletion, where theExpand
  • 112
  • 3
  • Open Access
Subjective Lorentz transformations and the perception of motion.
It has been known for some 40 years that the perceived velocity of a moving object does not correspond to its physical velocity. It is also known that the perceived length and temporal duration of aExpand
  • 54
  • 2
The Application of Remote Sensing for Detecting Mass Graves: An Experimental Animal Case Study from Costa Rica *
Abstract:  Detection of mass graves utilizing the hyperspectral information in airborne or satellite imagery is an untested application of remote sensing technology. We examined the in situ spectralExpand
  • 45
  • 2