Realidade Aumentada (RA) é uma linha de pesquisa dentro da ciência da computação que lida com integração do mundo real e elementos virtuais ou dados criados pelo computador. Atualmente, a maior parte das pesquisas em RA está ligada ao uso de vídeos transmitidos ao vivo, que são digitalmente processados e “ampliados” pela adição de gráficos criados pelo computador. Pesquisas avançadas incluem uso de rastreamento de dados em movimento, reconhecimento de marcadores confiáveis utilizando mecanismos de visão, e a construção de ambientes controlados contendo qualquer número de sensores e atuadores.
What is “Augmented Reality”? Augmented Reality is virtual reality added to real imagery, imagine a camcorder where as you look through the viewfinder, you see some computer generated 3D objects drawn on top of the video picture. For example virtual chess pieces could be drawn on top of an empty chess board. The computer must know where the camcorder is relative to the chess board in order to know how to “augment” the image correctly. One way to achieve this is to put marker patterns in the scene, when this marker is recognized in the camera image, the computer rendering the virtual chess pieces knows what position and angle to render them and draw them over the camera image so that it appears natural to you looking through the viewfinder.
A more concise definition is: Augmented Reality (AR), also known as “Mixed Reality” is where virtual and real objects appear together in a real time system. A prominent meeting place and showcase for AR technology is the annual international conference ISMAR http://www.ismar06.org/ .
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