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Affine invariant compact centroid distance shape descriptor for image retrieval

P. Arjun, T. T. Mirnalinee
2015 Applied Mathematical Sciences  
The sector area based object area normalization (OAN) technique is used for contour normalization.  ...  The work presented in this paper is contour based one dimensional shape feature extraction technique for closed contour objects. The continuous contour is normalized into 'N' representative points.  ...  A shape descriptor by Chahooki et al. [7] integrates contour-based and regionbased information for manifold learning based shape retrieval using fusion of dissimilarity measures. Lionel et al.  ... 
doi:10.12988/ams.2015.53214 fatcat:zxbauihguzdwbbiklbeuoueznm

Plant leaf classification and retrieval using multi‐scale shape descriptor

Guoqing Xu, Chen Li
2021 The Journal of Engineering  
Subsequently, for leaf retrieval the dissimilarity of each pair of leaf under each scale is computed using city block metric. And support vector machine is used as classifier for leaf classification.  ...  In this study, an original multi-scale shape descriptor is presented to perform leaf classification and retrieval.  ...  As one of the typical region-based descriptors, a combination of new and well-known geometric features are used for leaf classification task in [11] .  ... 
doi:10.1049/tje2.12050 fatcat:sigym46rnzgdhg4w4xn2n3xw6a

Contour salience descriptors for effective image retrieval and analysis

R. da S. Torres, A.X. Falcão
2007 Image and Vision Computing  
This work exploits the resemblance between content-based image retrieval and image analysis with respect to the design of image descriptors and their effectiveness.  ...  Contour saliences revisits its original definition, where the location of concave points was a problem, and provides a robust approach to incorporate concave saliences.  ...  The descriptor is a pair, feature vector and distance metric, used for image indexation by similarity.  ... 
doi:10.1016/j.imavis.2005.12.010 fatcat:btusbkjc5nbbroidaudbbxmszu

A Review on Shape based Descriptors for Image Retrieval

Pushpendra Singh, V.K. Gupta, P.N. Hrisheekesha
2015 International Journal of Computer Applications  
Contour based descriptor considers the whole area of the image while region based descriptor considers the boundary lines of the image. In this paper, shape based descriptors are reviewed.  ...  For searching an image from the database, images need to be described by certain features. The most important feature to describe an image is its shape. Now-adays, shape is used for image retrieval.  ...  Deng Sheng Zhang, Guojun Lu, [6] had reviewed and evaluated different Fourier Descriptors(FDs) for image retrieval. They studied three methods-Conventional FDs, Affine FDs and Short time FDs.  ... 
doi:10.5120/ijca2015906043 fatcat:3ardauul5rfnxadcqqc4iu27uu

SHREC'09 Track: Generic Shape Retrieval [article]

A. Godil, H. Dutagaci, C. Akgül, A. Axenopoulos, B. Bustos, M. Chaouch, P. Daras, T. Furuya, S. Kreft, Z. Lian, T. Napoléon, A. Mademlis (+9 others)
2009 Eurographics Workshop on 3D Object Retrieval, EG 3DOR  
The performance evaluation of the SHREC'09- Generic Shape Retrieval Contest is based on 6 different metrics.  ...  The aim of this track was to evaluate the performances of various 3D shape retrieval algorithms on the NIST generic shape benchmark.  ...  Different evaluation metrics measure different aspects of shape retrieval system.  ... 
doi:10.2312/3dor/3dor09/061-068 fatcat:5edwfisswnhbna44yap3wrvkte

An Efficient Trademark Image Retrieval using Combination of Shape Descriptor and Salience Features

Saurabh Agarwal, Nikhil Chaturvedi, Punit Kumar Johari
2014 International Journal of Signal Processing, Image Processing and Pattern Recognition  
In this research paper, we propose an efficient Trademark Image Retrieval (TIR) model which is a branch of Content Based Image Retrieval (CBIR).  ...  In the proposed system we extract the edge point of a particular image and after this the edge point are evaluated to find the corner pixel from it.  ...  Acknowledgements The authors would like to thank the anonymous reviewers for their constructive comments.  ... 
doi:10.14257/ijsip.2014.7.4.28 fatcat:g55waehwn5bjfkp457aafayjeu

SHREC'13 Track: Large Scale Sketch-Based 3D Shape Retrieval [article]

B. Li, Y. Lu, A. Godil, T. Schreck, M. Aono, H. Johan, J. M. Saavedra, S. Tashiro
2013 Eurographics Workshop on 3D Object Retrieval, EG 3DOR  
The aim of this track is to measure and compare the performance of sketch-based 3D shape retrieval methods based on a large scale hand-drawn sketch query dataset which has 7200 sketches and a generic 3D  ...  In this track, 5 runs have been submitted by 3 groups and their retrieval accuracies were evaluated using 7 commonly used retrieval performance metrics.  ...  a new composite Fourier Spectra feature extracted from Silhouette, Contour, and Edge images for a given 2D input image.  ... 
doi:10.2312/3dor/3dor13/089-096 fatcat:chwabfnmy5ezriwyb34slu2jqe

A Weighted Fourier and Wavelet-Like Shape Descriptor Based on IDSC for Object Recognition

Yan Zheng, Baolong Guo, Cheng Li, Yunyi Yan
2019 Symmetry  
This descriptor, called IDSC-wFW (a weighted Fourier and wavelet-like descriptor based on inner distance shape context), first rewrites shape histograms of IDSC descriptors, changing the histogram belonging  ...  to a point to the histogram belonging to a field, and sets the histogram of a field as a one-dimensional signal, then transforms this one-dimensional signal by using a Fourier transform and a transform  ...  Acknowledgments: The authors would like to thank the reviewers for their hard work. Conflicts of Interest: The authors declare no conflict of interest.  ... 
doi:10.3390/sym11050693 fatcat:x5azm5thnnayzdxhtfhyrd7y6a

Hierarchical String Cuts: A Translation, Rotation, Scale, and Mirror Invariant Descriptor for Fast Shape Retrieval

Bin Wang, Yongsheng Gao
2014 IEEE Transactions on Image Processing  
A hierarchical string cuts (HSCs) method is proposed to partition a shape into multiple level curve segments of different lengths from a point moving around the contour to describe the shape gradually  ...  This may suggest a new way of developing shape retrieval techniques in which a high accuracy can be achieved by a fast metric matching algorithm without using the time-consuming correspondence optimization  ...  MPEG-7 Shape Database The MPEG-7 CE-1 Part B shape database [15] is a widely used dataset for evaluating performances of similarity-based shape retrieval.  ... 
doi:10.1109/tip.2014.2343457 pmid:25122835 fatcat:xoxz2cbxb5hybjglpipoks7lvm

Feature Extraction and Retrieval of Ecommerce Product Images Based on Image Processing

Zhenfeng Wei, Xiaohua Zhang
2021 Traitement du signal  
The improved Fourier descriptor was innovatively into a metric learning-based product image feature extraction network, and the attention mechanism was introduced to realize accurate retrieval of product  ...  The research results provide a reference for feature extraction and retrieval in other fields of image processing.  ...  Therefore, the product identification based on image processing emerges as a key technique of the new retail.  ... 
doi:10.18280/ts.380119 fatcat:gztuqsu2ffewdiutgns34n4g6a

On Visual Similarity Based 3D Model Retrieval

Ding-Yun Chen, Xiao-Pei Tian, Yu-Te Shen, Ming Ouhyoung
2003 Computer graphics forum (Print)  
In this paper, however, we present a novel approach that matches 3D models using their visual similarities, which are measured with image differences in light fields.  ...  The techniques for content-based 3D model retrieval then become necessary. In this paper, a visual similarity-based 3D model retrieval system is proposed.  ...  Acknowledgements We would like to thank Miss Wan-Chi Luo, a graduate student, to help us manually classify the 1833 3DCafe objects into 47 classes plus another class "miscellaneous".  ... 
doi:10.1111/1467-8659.00669 fatcat:35phz3yxtfaxjbo2hywprd56xe

A shape-based approach for leaf classification using multiscaletriangular representation

Sofiene Mouine, Itheri Yahiaoui, Anne Verroust-Blondet
2013 Proceedings of the 3rd ACM conference on International conference on multimedia retrieval - ICMR '13  
In this paper we introduce a new multiscale shape-based approach for leaf image retrieval. The leaf is represented by local descriptors associated with margin sample points.  ...  Evaluations made on four public leaf datasets show that our shape-based approach achieves a high retrieval accuracy w.r.t. state-ofart methods.  ...  We would like also to thank Vera Bakić for her help to accomplish this work and Richard James for revising the English of this paper.  ... 
doi:10.1145/2461466.2461489 dblp:conf/mir/MouineYV13 fatcat:lygf75emwjbytcm4czn4txzjny

Content-based image retrieval utilizing explicit shape descriptors: applications to breast MRI and prostate histopathology

Rachel Sparks, Anant Madabhushi, Benoit M. Dawant, David R. Haynor
2011 Medical Imaging 2011: Image Processing  
Content-based image retrieval (CBIR) systems, in the context of medical image analysis, allow for a user to compare a query image to previously archived database images in terms of diagnostic and/or prognostic  ...  An accurate CBIR system relies on two components, (1) image descriptors which are related to a previously defined notion of image similarity and (2) quantification of image descriptors in order to accurately  ...  In addition to an accurate set of image descriptors, an appropriate metric to quantify image similarity in terms of quantitative image descriptors is necessary to retrieve the most similar images to a  ... 
doi:10.1117/12.878428 dblp:conf/miip/SparksM11 fatcat:u4cvyj3mxjfnlbopmqidh7enpm

Affine Invariant Gradient Based Shape Descriptor [chapter]

Abdulkerim Çapar, Binnur Kurt, Muhittin Gökmen
2006 Lecture Notes in Computer Science  
The performance of the proposed descriptor is evaluated over a database containing license plate characters.  ...  We also provide a distance definition for the proposed descriptor taking shifted property of the signature into account.  ...  We will evaluate the performance of the proposed method on shape retrieval image databases as a future work.  ... 
doi:10.1007/11848035_68 fatcat:am5rxztra5eqpcp6h666t4ls5m

Shape Based Image Retrieval Using Fused Features

Maria Abro, Shahnawaz Talpur, Nouman Soomro, Nazish Brohi
2018 EAI Endorsed Transactions on Internet of Things  
For content-based image retrieval, the shape is one of the most important discriminatory elements.  ...  The Fourier Descriptors, Moment-Based Features, Hierarchical Centroids and Histogram of Oriented Gradients have been applied for extraction of images from datasets.  ...  Evaluation Metrics For the problem of shape-based image retrieval, Bull-Eye Score is the standard evaluation metrics.  ... 
doi:10.4108/eai.31-10-2018.159916 fatcat:xmbrthfrlnhu5gyatsk7xpb3ei
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