A shearlet approach to edge analysis and detection

S Yi, D Labate, GR Easley… - IEEE Transactions on …, 2009 - ieeexplore.ieee.org
It is well known that the wavelet transform provides a very effective framework for analysis of
multiscale edges. In this paper, we propose a novel approach based on the shearlet …

A modified S-transform and random forests-based power quality assessment framework

MV Reddy, R Sodhi - IEEE Transactions on Instrumentation …, 2017 - ieeexplore.ieee.org
The proposed work aims at the accurate detection and classification of various single and
multiple power quality (PQ) disturbances. To this end, a modified optimal fast discrete …

Robust image watermarking based on multiband wavelets and empirical mode decomposition

N Bi, Q Sun, D Huang, Z Yang… - IEEE Transactions on …, 2007 - ieeexplore.ieee.org
In this paper, we propose a blind image watermarking algorithm based on the multiband
wavelet transformation and the empirical mode decomposition. Unlike the watermark …

Edge detection by scale multiplication in wavelet domain

L Zhang, P Bao - Pattern Recognition Letters, 2002 - Elsevier
This paper proposes a wavelet based edge detection scheme by scale multiplication. The
dyadic wavelet transforms at two adjacent scales are multiplied as a product function to …

[HTML][HTML] System for screening objectionable images

JZ Wang, J Li, G Wiederhold, O Firschein - Computer Communications, 1998 - Elsevier
As computers and the Internet become more and more available to families, access of
objectionable graphics by children is increasingly a problem that many parents are …

A wavelet-based multiresolution edge detection and tracking

MY Shih, DC Tseng - Image and Vision Computing, 2005 - Elsevier
A gradient image describes the differences of neighboring pixels in the image. Extracting
edges only depending on a gradient image will results in noised and broken edges. Here …

A novel approach for edge detection based on the theory of universal gravity

G Sun, Q Liu, Q Liu, C Ji, X Li - Pattern Recognition, 2007 - Elsevier
This paper presents a new, simple and effective low-level processing edge detection
algorithm based on the law of universal gravity. The algorithm assumes that each image …

Automatic detection of defects in tire radiographic images

Y Zhang, D Lefebvre, Q Li - IEEE transactions on automation …, 2015 - ieeexplore.ieee.org
This paper is about the detection of tire defects in multi-textural radiographic images. We
consider the tire defects characterization problem in ways of local regularity analysis and …

[图书][B] Integrated region-based image retrieval

JZ Wang - 2001 - books.google.com
Content-based image retrieval is the set of techniques for retrieving relevant images from an
image database on the basis of automatically derived image features. The need for efficient …

Computer vision techniques for automatic structural assessment of underground pipes

SK Sinha, PW Fieguth, MA Polak - Computer‐Aided Civil and …, 2003 - Wiley Online Library
Pipeline surface defects such as cracks cause major problems for asset managers,
particularly when the pipe is buried under the ground. The manual inspection of surface …