Hemispherical photography is a well-established method to optically assess ecological parameters related to plant canopies; e.g. ground-level light regimes and the distribution of foliage within the crown space. Interpreting hemispherical photographs involves classifying pixels as either sky or vegetation. A wide range of automatic thresholding or binarization algorithms exists to classify the ...

The previous chapters have focused on two specific image corrections: deblurring and denoising using image models and statistical priors tuned to the content of an image. In this chapter, we take a different approach toward image correction. Specifically, instead of developing corrections for general images using tuned models, we impose content restriction and look at a very specific, yet large...

We conducted two experiments to address questions over whether 9-monthold infants believe that objects depicted in realistic photographs can be picked up. In Experiment 1, we presented 9-month-old infants with realistic color photographs of objects, colored outlines of objects, abstract colored ‘‘blobs,’’ and blank pages. Infants most commonly rubbed or patted depictions of all types. They also...

Archive photographs are used widely in heritage education, but the photographic experience and our understanding of it, is poorer than it could be. This is primarily because the learning often fails to harness a photograph’s tangible indexical link with the past, but also because the instability of photographic meaning requires that we assign explicit labels for historic purposes, without alway...

The evolution of cooperation requires some mechanism that reduces the risk of exploitation for cooperative individuals. Recent studies have shown that men with wide faces are anti-social, and they are perceived that way by others. This suggests that people could use facial width to identify anti-social men and thus limit the risk of exploitation. To see if people can make accurate inferences li...

In this paper we consider the problem of computing the 3D shape of an unknown, arbitrarily-shaped scene from multiple color photographs taken at known but arbitrarilydistributed viewpoints. By studying the equivalence class of all 3D shapes that reproduce the input photographs, we prove the existence of a special member of this class, the maximal photo-consistent shape, that (1) can be computed...

In this paper we consider the problem of computing the 3D shape of an unknown, arbitrarily-shaped scene from multiple color photographs taken at known but arbitrarilydistributed viewpoints. By studying the equivalence class of all 3D shapes that reproduce the input photographs, we prove the existence of a special member of this class, the maximal photo-consistent shape, that (1) can be computed...

Consumers using online auction websites face the challenge of appraising products at a distance. Sellers and buyers in online auctions navigate this challenge by displaying and evaluating various cues, a critical one being use of photographs. Warranting theory predicts that cues less subject to control and manipulation by the presenter will be more influential in impression formation. Therefore...