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We describe a novel automatic calibration method using a single camera for a multiple-projector spherical Fish Tank Virtual Reality (FTVR) display. Modeling the projector as an inverse camera, we estimate the intrinsic and extrinsic projector parameters automatically using a set of projected images on the spherical screen. A calibrated camera is placed beneath to observe partially visible projected...
3D reconstruction from the microscopy images of serial sections plays an important role in analyzing structure of biological specimens, such as neuronal circuits in brain tissue. This paper is focusing on the 3D reconstruction of synapses which is a branch of micro reconstruction of brain. Having analysed the structure of synapses, we first detect and locate them in serial sections with cascade AdaBoost...
In this article, we focus on the comparison of the passive techniques of multi-view 3D reconstruction, namely the following techniques : Passive Stereo vision, Shape from Silhouette and Space Carving. Available data in the Passive techniques are no more than one or many images taken from different point of views (using one or several cameras). These images will be used in order to render the three-dimensional...
Real-time 3-D imaging, otherwise known as 4-D imaging, is becoming increasingly important in areas such as medical science, entertainment, homeland security, and manufacturing. Numerous 3-D imaging techniques have been developed, but only a few of them have the potential to achieve realtime. Of these few, fringe analysis based techniques stand out, having many advantages over the rest. This paper...
Advances in image sensors and evolution of digital computation is a strong stimulus for development and implementation of sophisticated methods for capturing, processing and analysis of 3D data from dynamic scenes. Research on perspective time-varying 3D scene capture technologies is important for the upcoming 3DTV displays. Methods such as shape-from-texture, shape-from-shading, shape-from-focus,...
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