Sentence examples for ridge frequency from inspiring English sources

The fingerprint ridge frequency and orientation were captured using short-time Fourier transform.

Lim et al.[48] present a local-feature-based quality metric which computes orientation certainty level (OCL), ridge frequency, ridge thickness, and ridge-to-valley thickness ratio.

There are four popular context filters, namely, Gabor, Anisotropic, Watson, and STFT, whose parameters depend on the ridge direction and the ridge frequency.

For the application of DG3PD to fingerprints, we are especially interested in the texture image v as a feature for subsequent processing steps like segmentation, orientation field estimation [32] and ridge frequency estimation [15], and fingerprint image enhancement [15, 21].

Testicular teratoma was observed in 36 out of 124 testes with implanted fetal gonadal ridges (frequency 29%).

In these methods, the instantaneous frequency ridge extraction is one of the most important parts.

Analysis performed with 1 s segments: a instantaneous frequency ridge in wavelet map b instantaneous amplitude.

Local minutiae descriptors, which comprise ridge orientations and frequency information, are bound to ordinate values of a fuzzy vault applying a fuzzy commitment scheme.

Each time frequency ridge line represented all parameters of one oscillation (phase, frequency, amplitude, starting and ending times) as a function of time.

Both the propagation range of intercellular Ca2+ waves in the lesser epithelial ridge and the frequency of spontaneous [Ca2+i transient in the greater epithelial ridge increase when the extracellular free Ca2+ concentration ([Ca2+o) is decreased [ 190, 199, 200], and this manipulation is known to increase the open probability of connexin hemichannels [ 203- 206].

A time-frequency ridge,, represents continuous local energy maxima in the time-frequency domain.