We describe a novel 3d particle image velocimetry (PIV) technique in microscopy using the wave-front coding method. Unlike conventional stereoscopic PIV, this technique has an extendeddepth-of-field (dOF) and require...
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In this work, we demonstrate a modified photometric stereo system with perfect pixel registration, capable of reconstructing continuous real-time 3d video at ~8 Hz for 64 x 64 image resolution by employing evolutionar...
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This paper broadly describes a novel approach to representing the three-dimensional world in a two-dimensional image. Rather than just relying on the physical behavior of light rays projected onto a surface, as is the...
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This paper broadly describes a novel approach to representing the three-dimensional world in a two-dimensional image. Rather than just relying on the physical behavior of light rays projected onto a surface, as is the case with most current imaging technologies, we are attempting to create a new imaging technology that emulates the subjective appearance of the world as perceived via the human visual system. We do so by computationally modelling a number of complex psychological processes occurring in visual perception. This approach results in a new non-linear projection framework called Fovography that we have shown has higher ratings than standard projections when measured across a range of psychological factors, including sense of presence, comfort, and ecological validity. Moreover, Fovographs are rated as being equally immersive when compared to a large format 180° cylindrical projection screen, and on a par with a virtual reality system, despite needing no glasses, headsets, or specialist display hardware to view.
Mobile three-dimensional imageacquisition and reconstruction system is proposed. When the server transmits the real scene's depth and color data to the mobile device, the elemental images are generated, anddirec...
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different indoor representation methods have been studied for their ability to provide indoor location-based services (LBS). Among them, omnidirectional imaging is one of the most typical and simple methods for repres...
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different indoor representation methods have been studied for their ability to provide indoor location-based services (LBS). Among them, omnidirectional imaging is one of the most typical and simple methods for representing an indoor space. However, a georeferenced omnidirectional image cannot be used for simple attribute searches, spatial queries, and spatial awareness analyses. To perform these functions, topological data are needed to define the features of and spatial relationships among spatial objects including indoor spaces as well as facilities like CCTV cameras considered in patrol service applications. Therefore, this study proposes an indoor space application data model for an indoor patrol service that can implement functions suited to linking indoor space data and service objects. In order to do this, the study presents a method for linking data between omnidirectional images representing indoor spaces and topological data on indoor spaces based on the concept of IndoorGML. Also, we conduct an experimental implementation of the integrated3d indoor navigation model for patrol service using GIS data. Based on the results, we evaluate the benefits of using such a 3ddata fusion method that integrates omnidirectional images with vector-based topological data models based on IndoorGML for providing indoor LBS in built environments.
Currently, rendering systems are able to produce photorealistic simulations of the appearance of many real-world materials. In the real world, viewer perception of objects depends on the lighting and object/material/s...
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This talk will describe new computational methods for 3d imaging in scattering media using phase space (e.g. light field) datasets and sparsity-contrained atomic norm algorithms. Experimentally, we use optogenetic tag...
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We propose using camera arrays coupled with coherent illumination to improve spatial resolution in long distance images by a factor of ten and beyond. Our experimental results for our prototype system increase resolut...
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An integral imaging display with vision enhancement capability is proposed. In addition to three-dimensional images, an asymmetric integral imaging system produces images of background scenes in viewers' focal ran...
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