conclusions nbi cystoscopy improved the detection rate. although false positives were more common with nbi, this was not statistically significant. nbi found additional aggressive tumors, which underscores the impact of detection in eortc recurrence risk scoring. results fifty patients, aged 63.86 ± 10.05 years, were enrolled. the overall detection rate was 98.9% for nbi vs. 89.4% for wli (p = ...

Abstract Magnetic particle imaging (MPI) quantitatively visualizes in vivo superparamagnetic iron oxide nanoparticles (SPIONs), which has shown great promises biomedicine. In this paper, we propose a single harmonic-based narrowband MPI approach via measuring harmonic—3 f 0 harmonic—of the SPIONs induced an excitation magnetic field with frequency = 5 kHz. The scanner is built to scan field-fre...

Current multispectral imaging systems use narrowband filters to capture the spectral content of a scene, which necessitates different filters to be designed for each application. In this paper, we demonstrate the concept of Fourier multispectral imaging which uses filters with sinusoidally varying transmittance. We designed and built these filters employing a single-cavity resonance, and made s...

During the last two decades, Maximum Likelihood estimation (ML) has been used to determine Direction Of Arrival (DOA) and signals propagated by the sources, using narrowband array signals. The algorithm fails in the case of wideband signals. As an attempt by the present study to overcome the problem, the array outputs are transformed into narrowband frequency bins, using short time Fourier tran...

This study focuses on the rotating target imaging and parameter estimation with narrowband radar echoes, which is essential for radar target recognition. First, a two-dimensional (2D) imaging model with narrowband echoes is established in this paper, and two images of the target are formed on the velocity-acceleration plane at two neighboring coherent processing intervals (CPIs). Then, the rota...

During the last two decades, Maximum Likelihood estimation (ML) has been used to determine Direction Of Arrival (DOA) and signals propagated by the sources, using narrowband array signals. The algorithm fails in the case of wideband signals. As an attempt by the present study to overcome the problem, the array outputs are transformed into narrowband frequency bins, using short time Fourier tran...

The Taurus Tunable Filter (TTF) is a tunable narrowband interference filter covering wavelengths from 6300Å to the sensitivity drop-off of conventional CCDs (∼ 9600 Å), although a blue ‘arm’ (3700−6500Å) is to be added by the end of 1997. The TTF offers monochromatic imaging at the cassegrain foci of both the Anglo-Australian and William Herschel Telescopes, with an adjustable passband of betwe...