Optical tracking has a great future in applications of virtual and augmented reality. It will assist to enhance the acceptance of virtual reality user interfaces, since optical tracking allows wireless interaction and precise tracking. Existing commercial motion capture systems are neither working reliably in real-time. Additionally, only few optical trackers can smooth and predict motion and i...

We present and analyze the optical and X-ray catalogs of moderateredshift cluster candidates from the ROSAT Optical X-ray Survey, or ROXS. The survey covers the sky area contained in the fields of view of 23 deep archival ROSAT PSPC pointings, 4.8 square degrees. The crosscorrelated cluster catalogs were constructed by comparing two independent catalogs extracted from the optical and X-ray band...

We theoretically introduce a new type of optical all-pass filter based on guided resonance in coupled photonic crystal slabs. The filter exhibits near-complete transmission for both on- and off-resonant frequencies and yet generates large resonant group delay. We further show that such a filter can be mechanically switched into a flat-top band rejection filter.

Error-free all-optical packet switching is demonstrated at 160 Gb/s. The system employs a highly scalable in-band optical labelling, filter-based label extraction, a hybrid-integrated optical flip-flop, and a single SOA-based wavelength converter.

The authors studied the performance of laser protective eyewear currently in use at the Lawrence Livermore National Laboratory: a goggle with a cellulose propionate filter from Glendale Protective Technologies and a goggle with a glass optical filter from Spectra Optics. A new polycarbonate optical filter material from Glendale was studied also, and its performance was compared with that of the...

This paper presents a extended approach to rz line coded signal estimation accuracy by improving the kalman filtration technique for optical fiber communication. The rz signal estimation with comparison to existing threshold approach and adaptive based approach were observed and an modified adaptive filter approach is proposed to further improve the estimation approach. Simulation results were ...

This study presents what is to our knowledge a new and efficient method for the design of an optical finite impulse response (FIR) filter by employing a particle swarm optimization technique. With the method proposed, the design of an optical FIR filter, which is able to provide an arbitrary spectrum output based on crystal birefringence, could be implemented with good performance and high effi...

We present an approach that significantly enhances the capabilities of traditional image mosaicing. The key observation is that as a camera moves, it senses each scene point multiple times. We rigidly attach to the camera an optical filter with spatially varying properties, so that multiple measurements are obtained for each scene point under different optical settings. Fusing the data captured...