The pair correlation function g(r) and the number density n for particles in a three-dimensional (3D) sample can be determined from a single two-dimensional (2D) image. The 2D image is obtained experimentally with a simple setup: a cross-sectional slab of particles is illuminated with a laser sheet and imaged with a single camera. After image analysis, to find positions of particles in two dime...

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We develop a view synthesis system, which is capable to collect/recover 3-D information of scenes from multiple calibrated/uncalibrated images; to store and access the 3-D information in an e cient way; and to synthesize, in real-time, arbitrary views of the scene within a pre-speci ed viewing area. We propose a new scene representation for our view synthesis system. Consequently, it is designe...

A tephrochronology has been established for a peat bog in the Lofoten Islands that provides a dating framework for future lake and bog studies of climate variation in this climatically sensitive area. Twenty-three tephra layers were identified, all apparently of Icelandic origin. These included the historically dated tephras of AD 1875 (Askja), AD 1362 (Öraefajökull), AD 1158 (Hekla), AD 1104 (...