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A New Shape Signature for Fourier Descriptors

A. El-ghazal, O. Basir, S. Belkasim
2007 Proceedings of IEEE international conference on image processing  
Shape-based image description is an important approach to Content-based Image Retrieval (CBIR).  ...  In this paper we investigate this technique and present a novel shape registration method for extracting Fourier descriptors.  ...  A survey of users on the cognition aspects of image retrieval indicates that users are more interested in retrieval based on shape than on color and texture [4] .  ... 
doi:10.1109/icip.2007.4378916 dblp:conf/icip/El-ghazalBB07 fatcat:s33wvgxd2fay3fiuajz23tpiru

Fast and Effective Retrieval of Plant Leaf Shapes [chapter]

Bin Wang, Yongsheng Gao
2013 Lecture Notes in Computer Science  
In this paper, a novel shape description and matching method based on multi-level curve segment measures (MLCSM) is proposed for plant leaf image retrieval.  ...  MLCSM extracts the statistical features of shape contour via measuring the curve bending, convexity and concavity of the curve segments with different length of shape contour to describe the shape.  ...  In our future work, we will consider learning similarity-preserving binary codes based on the proposed shape descriptor to further improve the efficient of plant leaf image retrieval.  ... 
doi:10.1007/978-3-642-37444-9_37 fatcat:vl5lc4rmyff67kdwrgerivryxa

A Survey of Shape Feature Extraction Techniques [chapter]

Yang Mingqiang, Kpalma Kidiyo, Ronsin Joseph
2008 Pattern Recognition Techniques, Technology and Applications  
It is the process of retrieving images from a collection based on automatically extracted features from those images.  ...  Content-based image retrieval (CBIR), emerged as a promising mean for retrieving images and browsing large images databases. CBIR has been a topic of intensive research in recent years.  ...  The present book is intended to collect representative researches around the globe focusing on low-level vision, filter design, features and image descriptors, data mining and analysis, and biologically  ... 
doi:10.5772/6237 fatcat:ggyqwzt4jvfuxg4cjb7vjniu3q

A Review on Shape based Descriptors for Image Retrieval

Pushpendra Singh, V.K. Gupta, P.N. Hrisheekesha
2015 International Journal of Computer Applications  
Some important shape descriptors have been identified for image retrieval according to the standard principles.  ...  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.  ...  Since JPEG compression is based on DCT so for image retrieval, Huffman tables uses DCT coefficients for feature extraction.  ... 
doi:10.5120/ijca2015906043 fatcat:3ardauul5rfnxadcqqc4iu27uu

A New Multi-resolution Affine Invariant Planar Contour Descriptor [chapter]

Taha Faidi, Faten Chaieb, Faouzi Ghorbel
2015 Lecture Notes in Computer Science  
In this paper, a novel affine invariant shape descriptor for planar contours is proposed. It is based on a multi-resolution representation of the contour.  ...  For each contour resolution, a shape signature is defined from the contour points and the initial contour centroid and points. Finally, Fourier descriptors are computed for each signature.  ...  This work is carried out as part of a MOBIDOC thesis financed by the European Union under the PASRI program in partnership with the Research and Studies Telecommunications Center (CERT) and CRISTAL laboratory  ... 
doi:10.1007/978-3-319-23234-8_46 fatcat:dd4yzpnhvjezzc2y67c34x5u5y

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

Zhenfeng Wei, Xiaohua Zhang
2021 Traitement du signal  
To acquire high-level semantics of images and enhance the retrieval effect of products, this paper explores the feature extraction and retrieval of ecommerce product images based on image processing.  ...  The research results provide a reference for feature extraction and retrieval in other fields of image processing.  ...  of data points relative to chord length.  ... 
doi:10.18280/ts.380119 fatcat:gztuqsu2ffewdiutgns34n4g6a

Four Side Distance: A New Fourier Shape Signature [article]

Sonya Eini, Abdolah Chalechale
2013 arXiv   pre-print
Shape is one of the main features in content based image retrieval (CBIR). This paper proposes a new shape signature.  ...  In this technique, features of each shape are extracted based on four sides of the rectangle that covers the shape.  ...  CONCLUSION One of the important low-level features in content-based image retrieval is shape. This paper proposed a new CBIR system based on shape feature. This is based on boundary points of shapes.  ... 
arXiv:1302.5894v1 fatcat:nre7ma27hngnxg5kybcmrida7a

Describing Colors, Textures and Shapes for Content Based Image Retrieval - A Survey [article]

Jamil Ahmad, Muhammad Sajjad, Irfan Mehmood, Seungmin Rho, Sung Wook Baik
2015 arXiv   pre-print
In this paper we will present a detailed overview of some of the powerful color, texture and shape descriptors for content based image retrieval.  ...  Hence intense need has been felt to efficiently index and store large image collections for effective and on- demand retrieval.  ...  The traditional annotations based image retrieval (ABIR) and the recent one termed as Content based image retrieval (CBIR).  ... 
arXiv:1502.07041v1 fatcat:ajzvorf3pnbxxe2e7f6syhsu3e

Chord Context Algorithm for Shape Feature Extraction [chapter]

Yang Mingqiang, Kpalma Kidiyo, Ronsin Joseph
2011 Object Recognition  
For general shape representation, a recent review is given in [1] [2] . In this chapter, a shape descriptor based on chord context is proposed.  ...  Image retrieval is based on observation of an ordering of match scores obtained by searching through a database.  ...  Suppose the average distance of all the points on the edge of a shape to its centroid is D.  ... 
doi:10.5772/14979 fatcat:vlfyi4yrhvgvvpzvqxpklscxgu

Design of a Novel Shape Signature by Farthest Point Angle for Object Recognition

M. Radhika Mani, G.P.S. Varma, Potukuchi D.M., Ch. Satyanarayana
2014 International Journal of Image Graphics and Signal Processing  
Zhang et al [25] evaluated various shape signatures for 1-D FD basing on the features like centroid distance, area, affinity, position, chord length, curvature and psi etc., and concluded that centroid  ...  Importance of -Fourier Descriptor‖ (FD) for the shape based object representation is described. A survey for the available shape signature assignment methods with Fourier descriptors is presented.  ...  Ghazal's findings proved that FPD based shape signature turned out with greater retrieval performance, when compared to other methods that rely on signatures like radial signature, chord length, angular  ... 
doi:10.5815/ijigsp.2015.01.05 fatcat:3yrpeelcfvecblw7t3fe4evome

A Survey on Feature Extraction Techniques for Shape based Object Recognition

Mitisha Narottambhai, Purvi Tandel
2016 International Journal of Computer Applications  
Some of those feature extraction techniques, with their invariance properties are discussed here for the image retrieval system.  ...  So, feature extraction techniques are one of the important part of the image retrieval systems.  ...  Centroid distance, area, chord length (maximum length, minimum length) are shape signatures [8] [9] .  ... 
doi:10.5120/ijca2016908782 fatcat:px4da5ytpvcpdi3yh6ik6l4cey

Shape-Based Invariant Feature Extraction for Object Recognition [chapter]

Mingqiang Yang, Kidiyo Kpalma, Joseph Ronsin
2012 Intelligent Systems Reference Library  
Shape-based invariant features extraction for object recognition. Roumen Kountchev and Kazumi Nakamatsu.  ...  Advances in reasoning-based image processing, analysis and intelligent systems: Conventional and intelligent paradigms, Roumen Kountchev, Kazumi Nakamatsu (eds.), Springer, 60 p., 2012. hal-00652422  ...  the content-based image retrieval (CBIR) approaches.  ... 
doi:10.1007/978-3-642-24693-7_9 fatcat:u4ppiahsi5ee7cpowojj3kbt3y

Shape matching by part alignment using extended chordal axis transform

Z. Yasseen, A. Verroust-Blondet, A. Nasri
2016 Pattern Recognition  
We start by a skeleton-based segmentation of the shape inspired by the Chordal Axis Transform.  ...  Our experimental evaluations validate the proposition that part correspondence allows conceptual matching of precisely dissimilar shapes. 1 or skeleton-based segmentation [35] of the shape 1 .  ...  Acknowledgements Zahraa Yasseen is supported by a scholarship from the Lebanese National Council for Scientific Research (CNRS).  ... 
doi:10.1016/j.patcog.2016.03.022 fatcat:bvqysjng5rg45ns5qnfoztgeqi

Chord Bunch Walks for Recognizing Naturally Self-overlapped and Compound Leaves

Bin Wang, Yongsheng Gao, Changming Sun, Michael Blumenstein, John La Salle
2019 IEEE Transactions on Image Processing  
A novel chord bunch walks (CBW) descriptor is developed through the chord walking behaviour that effectively integrates the shape image function over the walked chord to reflect both the contour features  ...  Five experiments, including image retrieval of compound leaves, image retrieval of naturally self-overlapped leaves, and retrieval of mixed leaves on three large scale datasets, are conducted.  ...  A classical descriptor for region-based shape analysis is the Zernike moments (ZM) [39] which is generated by projecting the shape image function on a set of orthogonal basis functions defined in the  ... 
doi:10.1109/tip.2019.2921526 fatcat:is3mxtpiincjxof3ewegfz6jni

Performance Comparison of Fourier Transform and its Derivatives as Shape Descriptors for Mango Grading

Suchitra Khoje, Shrikant Bodhe
2012 International Journal of Computer Applications  
The purpose of this research work is to explore image processing algorithms and techniques to sort misshapen mango fruits based on their shape features.  ...  Wavelet Fourier Descriptor outperforms region based and contour based Fourier descriptor with classification efficiency of 89.83%.  ...  In recent years, for content based image retrieval, computer vision techniques are developed by researchers using shape descriptors.  ... 
doi:10.5120/8401-2280 fatcat:dwoznp542jcjhj5jthyjlkakeq
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