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Frequency tuning in animal locomotion
Zoology, 2006In locomotion that involves repetitive motion of propulsive structures (arms, legs, fins, wings) there are resonant frequencies f(*) at which the energy consumption is a minimum. As animals need to change their speed, they can maintain this energy minimum by tuning their body resonances.
Boye K, Ahlborn +2 more
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Adaptive tuning to frequency response specifications
Automatica, 1990zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Yu Tang, Romeo Ortega
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Spatial frequency tuning of facilitation by masks
Vision Research, 1992The spatial frequency tuning of facilitation by masks is derived for a 2 c/deg test grating, counterphased at 8.8 Hz, from the contrasts at which masks of different spatial frequencies facilitate maximally. This tuning function has a bandwidth at half height of roughly 1.5 octaves, much broader than has been estimated previously from tuning functions ...
H D, Speed, J, Ross
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Frequency tuned salient edge detection
2011 24th Canadian Conference on Electrical and Computer Engineering(CCECE), 2011This paper presents a novel method for salient edge detection based on the frequency tuning principle. Limiting the operation to a single wavelet sub-band, the frequency components of the wavelet are analyzed. The average value in each frequency component (horizontal, vertical, and diagonal) is computed and subtracted from each pixel in its respective ...
Yusuf Saber, Matthew J. Kyan
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Comparison of tuning frequency estimation methods
Multimedia Tools and Applications, 2014In this paper, a comparison of different algorithms for concert pitch (i.e., tuning frequency or reference frequency) estimation is presented and discussed. The unavailability of ground-truth datasets makes this evaluation on real music recordings less trivial than it may initially appear.
DEGANI, Alessio +3 more
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Frequency-tuned active contour model
Neurocomputing, 2018Abstract Active contour model (ACM) is able to obtain sub-pixel precision segmentation and has been widely employed in biomedical image analysis and video segmentation. Existing region-based ACMs (RACM) without enough prior constraints, however, easily fail when segmenting low quality images, e.g.
Qing Guo 0005 +5 more
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OTA Based Frequency Tuning System
2007 14th IEEE International Conference on Electronics, Circuits and Systems, 2007An on-line tuning system based on the master-slave technique is proposed in this paper. The system is realized by employing only operational transconductance amplifiers (OTAs) for the realization of all stages. As a result, attractive offered benefits are the suitability of implementation of the resulted configurations in both integrated and discrete ...
Chrisostomos Kassimis +2 more
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Frequency Selection and Tuning
2018In general, multiple longitudinal and transverse electromagnetic modes simultaneously oscillate in a laser resonator. Hence, lasers emit a range of frequencies or wavelengths, determined by the linewidth of the laser transition, e.g. 1.5 GHz (2 pm) for the He-Ne laser at 633 nm or several THz (hundreds of nm) for the titanium-sapphire laser around 800 ...
Hans Joachim Eichler +2 more
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Frequency tuning of long-wavelength VCSELs
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2006Tuning properties of long-wavelength VCSELs have been studied experimentally, for the first time to our knowledge. Injection current and temperature tuning rates of two VCSELs operating near 1,512 and 1,577 nm have been measured using a Fabry-Perot etalon with free spectral range 0.056 cm(-1).
A, Lytkine, W, Jäger, J, Tulip
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