Relativistic effects on imaging by a rotating optical system

Rotating Relativistic Thin Disks

Two families of models of rotating relativistic disks based on TaubNUT and Kerr metrics are constructed using the well-known “displace, cut and reflect” method. We find that for disks built from a generic stationary axially symmetric metric the “sound velocity”, (pressure/density)1/2, is equal to the geometric mean of the prograde and retrograde geodesic circular velocities of test particles mo...

Determination of experimental Tumor Volume of a mouse using optical imaging system in different processing stages

Rotating beams in isotropic optical system.

Based on the ray transformation matrix formalism, we propose a simple method for generation of paraxial beams performing anisotropic rotation in the phase space during their propagation through isotropic optical systems. The widely discussed spiral beams are the particular case of these beams. The propagation of these beams through the symmetric fractional Fourier transformer is demonstrated by...

Rendering Relativistic Effects in Transient Imaging

We present a real-time framework which allows interactive visualization of relativistic effects for time-resolved light transport. We leverage data from two different sources: real-world data acquired with an effective exposure time of less than 2 picoseconds, using a novel imaging technique termed femto-photography, and a transient renderer based on ray-tracing. We overcome the two main limita...

a study on construction of iranian life tables: the case study of modified brass logit system

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