Some beetle species can have devastating economic impacts on forest and nursery industries. A recent example is Anophophora glabripennis, a species of beetle known in the United States as the "Asian Longhorrned beetle", which has damaged many American forests, and is a threat which can unintentionally reach south American countries, including Brazil. This work presents a new method based on X-ray computerized tomography (CT) and image processing for beetle injury detection in forests. Its results show a set of images with correct identification of the location of beetles in living trees as well as damage evaluation with time.RESUMO -Algumas espécies de besouros têm elevado impacto econômico em florestas e indústrias de móveis. Exemplo recente é aquele produzido pelo besouro Anophophora glabripennis, uma espécie conhecida nos Estados Unidos como Asian Longhorn, que tem produzido danos significativos em várias florestas americanas, representando uma ameaça que poderá encontrar transporte não-intencional para países da América do Sul, inclusive para o Brasil. Neste trabalho é apresentado um novo método com base no uso de tomografia de raios X computadorizada (CT) e processamento de imagens digitais para detecção de injúrias causadas por besouros em florestas. Os resultados mostram a correta identificação da localização de besouros em árvores vivas, como também fornecem uma avaliação do estrago temporal causado.Palavras-chave: Florestas, árvores, tomografia computadorizada e detecção de injúrias.
ResumoEste artigo apresenta uma base de Laboratório de Psicologia, 11(1): 19-28 (2013 A correspondência relativa a este artigo deverá ser enviada para: J.
Some evidences related to demography will change the way we design built environment, mainly hospitals. The world is facing a situation without precedents, so that soon there will be more elderly of extreme old age than ever before. With a continuous decline in death rates and rising life expectancy among them, reaching 80 years and even over 100. Living longer with a better life quality doesn’t mean a healthier living, but a hospital care dependency related to health problems. We are facing a change of the demographic profile for which we must undertake a mentality readjustment in order to suit and give qualitative answer to these groups’ life. With an increasing ageing population, the burden of age-related sensory impairment is expected to increase. There is a growing interest in the effects of the physical environment on the health and well being of the elderly and disabled population. The research is being held in an ophthalmological hospital, where all kinds of eye pathologies are treated, though presenting difficulties in color discrimination and perception, incapacity of reading at distance and interpreting complex pictograms. For a structured and effective research a participatory design methodology is considered to evaluate patient’s low vision condition and working health professionals testimonials. Through observation, interviews and tests validating its results with groups of specialists. The final result will be the installation in this hospital of a sensory-motor wayfinding system (Percept Walk) reflecting the conclusion held in the research process.
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