نتایج جستجو برای: detection filter

تعداد نتایج: 676339  

Journal: :IEICE Transactions on Information and Systems 2020

Journal: :International Journal of Robust and Nonlinear Control 2017

Journal: :Mathematical Problems in Engineering 2016

1996
Rainer Herpers Markus Michaelis K.-H. Lichtenauer Gerald Sommer

In this contribution we introduce a method for the automatic detection of facial features and characteristic anatomical keypoints. In the application we are aiming at the anatomical landmarks are used to accurately measure facial features. Our approach is essentially based on a selective search and sequential tracking of characteristic edge and line structures of the facial object to be searche...

2003
M. Bertozzi A. Broggi R. Chapuis F. Chausse A. Tibaldi

This work presents a vision-based system for detecting and localizing pedestrians in road environments by means of a statistical technique. Initially, attentive vision techniques relying on the search for specific characteristics of pedestrians such as vertical symmetry and strong presence of edges, allow to select interesting regions likely to contain pedestrians. These regions are then used t...

2017
Miao Li Stephen D. Holland William Q. Meeker

Vibrothermography (Sonic IR, thermosonics) is a technique for finding cracks through frictional heat given off in response to vibration. Vibrothermography provides a sequence of infrared images as output of the inspection process. A fast and accurate automatic crack‐detection algorithm for the sequence‐of‐images data will greatly increase the productivity of vibrothermography method. Matched fi...

Journal: :iranian journal of medical physics 0
fereydoon nowshiravan rahatabad department of biomedical engineering, science and research branch, islamic azad university, tehran, iran

introduction one of the most important pre-processing steps in optical coherence tomography (oct) is reducing speckle noise, resulting from multiple scattering of tissues, which degrades the quality of oct images. materials and methods the present study focused on speckle noise reduction and edge detection techniques. statistical filters with different masks and noise variances were applied on ...

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