S. Walter

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In previous work, a platform has been developed for testing computer-vision algorithms for robotic planetary exploration (McGuire et al. 2004b,2005). This platform consisted of a digital video camera connected to a wearable computer for real-time processing of images at geological and astrobiological field sites. The real-time processing included image(More)
If Trinidad farmers are to meet consumers’ demands for safer food and also the requirements for export of produce then they must embrace Good Agricultural Practices (GAPs) on farms. This study assessed the extent of compliance with GAPs among smallholder vegetable farmers (n = 196) across Trinidad, West Indies. Farmers were randomly selected and surveyed(More)
We describe an image-comparison technique of Heidemann and Ritter (2008a,b) that uses image compression, and is capable of: (i) detecting novel textures in a series of images, as well as of: (ii) alerting the user to the similarity of a new image to a previously-observed texture. This image-comparison technique has been implemented and tested using our(More)
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