Anthocyanin pigments have become a model trait for evolutionary ecology as they often provide adaptive benefits for plants. Anthocyanins have been traditionally quantified biochemically or more recently using spectral reflectance. However, both methods require destructive sampling and can be labor intensive and challenging with small samples. Recent advances in digital photography and image pro...

In the complex situation of a real archives or library, the contribution that air pollution makes to the fading of images is not easy to measure or observe. The effects are subtle and occur slowly, blending in with the action of light, heat, humidity, and the inherent stability (or instability) of each individual type of photograph. We are not able to say what percentage of the fading of a colo...

Fusion techniques can be applied to multispectral and higher spatial resolution panchromatic images to create a composite image that is easier to interpret than the individual images. Wavelet transform-based multisensor, multiresolution fusion (a type of band sharpening) was applied to Landsat thematic mapper (TM) multispectral and coregistered higher resolution SPOT panchromatic images. The ob...

Computational photography combines plentiful computing, digital sensors, modern optics, actuators, and smart lights to escape the limitations of traditional cameras, enables novel imaging applications and simplifies many computer vision tasks. However, a majority of current Computational photography methods involves taking multiple sequential photos by changing scene parameters and fusing the p...

This paper describes a new algorithm for combining color and texture information for the segmentation of color images. The algorithm uses maximum likelihood classi cation combined with a certainty based fusion criterion. The algorithm was validated using mosaics of real color textures. It was also tested on real outdoor color scenes and aerial images. This algorithm is part of a more complex sy...

Fig. 1: Illustration of the experimental setup to sample the surface temperature of a patch of land. In this work, we address rapid sampling of environmental fields using static and mobile imaging sensors. Specifically, we demonstrate effective reconstruction of the surface temperature field of a patch of vegetation. Accurate monitoring of surface temperature is desirable for various applicatio...

Digital photography is a relatively new topic for scholarly study in the area of computer mediated communication. Photographic technologies were only first computerized in the 1990s, but have rapidly supplanted older film technologies for a majority of professional uses. Digital photography has not simply substituted silicon chips for film, however, but has brought about rapid changes throughou...

A hundred years ago, before color photography existed, a Russian scholar ProkudinGorskii attempted to create color photographs by taking three black and white exposures of the same scene through three filters: blue, green and red, to be displayed using a special triple lens projector. Today, 1,902 three-channel negatives of these photographs survive and are available in digital format on the Li...

BACKGROUND We sought to compare the effects on ophthalmic function of coronary artery bypass grafting (CABG) with cardiopulmonary bypass (CPB) and off-pump (OPCAB) grafting and to investigate whether retinal microvascular damage is associated with markers of cerebral injury. METHODS AND RESULTS Retinal microvascular damage was assessed by fluorescein angiography and color fundus photography. ...