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Image query processing based on multi-level signatures

F. Rabitti, P. Savino
1991 Proceedings of the 14th annual international ACM SIGIR conference on Research and development in information retrieval - SIGIR '91  
Particukzr emphasis is given on the definition of suitable content-based access structures to make more ejjicient the query processing. An approach based on multi-level signatures is adopted.  ...  The query is pre-processed on the signatures to jilter-out most of the images not sati~ing the query. Finally, an evaluation of the ejjiciency and precision of the signature technique is given.  ...  demonstrates the advantage of our multi-level signature query processing approach.  ... 
doi:10.1145/122860.122891 dblp:conf/sigir/Rabitti91 fatcat:qpjo72sf75aavdjniqoku4yfw4

Signature based Document Image Retrieval Using Multi-level DWT Features

Umesh D. Dixit, M. S. Shirdhonkar
2017 International Journal of Image Graphics and Signal Processing  
This paper proposes a method for automatic signature extraction and signature based document image retrieval using multi-level discrete wavelet transform features.  ...  Hence it has attracted a lot of researchers from the field of document image analysis and processing.  ...  of documents based on the signature.  ... 
doi:10.5815/ijigsp.2017.08.05 fatcat:guzw6udyifc6fp2u3uvg2xyc6e

MINDEX: An efficient index structure for salient-object-based queries in video databases

Lei Chen, M. Tamer �zsu, Vincent Oria
2004 Multimedia Systems  
In this paper, we propose a multi-level index structure (MINDEX) to efficiently handle the salient object-based queries with different levels of constraints.  ...  Moreover, these index structures are designed without consideration of the granularity levels of constraints on salient objects and the characteristics of video data.  ...  will be helpful Fig. 7 Two signature-based multi-level signature filter + to answer these queries.  ... 
doi:10.1007/s00530-004-0137-4 fatcat:n6wwavmev5c5hchjvssinlcv5e


M Praveen, K. Sivanarulselvan, P. Betty
2016 ELK Asia Pacific Journal of Computer Science and Information Systems  
Keywords: Content based image retrieval (CBIR), Feature matching, Multiple query image retrieval (MQIR), semantic gap reduction techniques.  ...  Ren (2006) Multi-image query content-based image retrieval, University of Wollongong thesis collections. [6] conference on acoustic, speech and signal processing.  ...  Multi-query approach is proposed for efficient semantic gap reduction in CBIR. Survey is done on different multi-query content based image retrieval systems.  ... 
doi:10.16962/eapjcsis/issn.2394-0441/20160930.v2i1.03 fatcat:npu62nb2xfbgtkqpekux6wik54

Bag-of-Visual-Words for Signature-Based Multi-Script Document Retrieval [article]

Ranju Mandal and Partha Pratim Roy and Umapada Pal and Michael Blumenstein
2018 arXiv   pre-print
to match with the query signature.  ...  An end-to-end architecture for multi-script document retrieval using handwritten signatures is proposed in this paper.  ...  A multi-level step-by-step approach was used for recognition of logos and the logo matching process involved a logo database.  ... 
arXiv:1807.06772v1 fatcat:z2g6qunh4neevitr7lbgsu7cc4

Image Retrieval using Steerable Pyramid

Swapna Borde, Udhav Bhosle
2012 International Journal of Computer Applications  
In this paper, content based image retrieval (CBIR) is done using the image feature set extracted from Steerable Pyramid applied on the image at two levels (Level-1 and Level-2) of decomposition.  ...  The Content Based Image Retrieval System (CBIR) is a system, which retrieves the similar images from an image collection based on visual features such as color, texture and shape.  ...  Several previous works extract texture features based on wavelet packet signatures and wavelet frames.  ... 
doi:10.5120/4620-6853 fatcat:27oyxjqkpvexpfsdz5f4wy4qsm

Scalable triangulation-based logo recognition

Yannis Kalantidis, Lluis Garcia Pueyo, Michele Trevisiol, Roelof van Zwol, Yannis Avrithis
2011 Proceedings of the 1st ACM International Conference on Multimedia Retrieval - ICMR '11  
Given a query image and a large logo database, the goal is to recognize the logo contained in the query, if any.  ...  We see large scale recognition as a sub-linear search problem where signatures of the query image are looked up in an inverted index structure of the class models.  ...  In the future, optimizations for RANSAC based on the multi-scale Delaunay triangulation signatures could be investigated in order to localize the logo in the query image.  ... 
doi:10.1145/1991996.1992016 dblp:conf/mir/KalantidisPTZA11 fatcat:fvghbgtzczaavasxefrbhna2qe

Machine-Learning-Based Real-Time Multi-Camera Vehicle Tracking and Travel-Time Estimation

Xiaohui Huang, Pan He, Anand Rangarajan, Sanjay Ranka
2022 Journal of Imaging  
Our approach consists of (1) multi-object single-camera tracking, (2) vehicle re-identification among different cameras, (3) multi-object multi-camera tracking, and (4) travel-time estimation.  ...  We evaluated the proposed framework on real intersections in Florida with pan and fisheye cameras. The experimental results demonstrate the viability and effectiveness of our method.  ...  Each vehicle has about 11 images (near departure time) per camera, and we can apply multi-query matching setting by averaging these 11 images for signature ReID.  ... 
doi:10.3390/jimaging8040101 pmid:35448228 pmcid:PMC9032018 fatcat:d2tceiiudjgm7cgp7nggbk4fqq

Efficient content-based indexing of large image databases

Essam A. El-Kwae, Mansur R. Kabuka
2000 ACM Transactions on Information Systems  
Type I signatures are used at all tree levels except the leaf level and are based only on the domain objects included in the image.  ...  Type II signatures, on the other hand, are stored at the leaf level and are based on the included domain objects and their spatial relationships.  ...  Fig. 6 . 6 Signature generation and comparison based on superimposed coding. Fig. 7 . 7 Two Signature Multi-Level Signature Filter( 2SMLSF).  ... 
doi:10.1145/348751.348762 fatcat:fqtaynklqzdtblwybdhaunb5eq

Using content based image retrieval techniques for the indexing and retrieval of Thai handwritten documents

Seksan Sangsawad, Chun Che Fung
2010 2010 The 2nd International Conference on Computer and Automation Engineering (ICCAE)  
Issues associated with Thai handwritten documents are the lack of spacing between words, multi-level alphabets and different writing styles.  ...  The objective of the proposal is to develop a semiautomated method to index and retrieve Thai handwritten documents based on sampled keywords by combining CBIR and signature recognition techniques.  ...  The method is based on Content Based Image Retrieval (CBIR) and offline signature recognition techniques.  ... 
doi:10.1109/iccae.2010.5451992 fatcat:fl4pvxasorhgpkufiibu2zubje

Scalable face image retrieval with identity-based quantization and multi-reference re-ranking

Zhong Wu, Qifa Ke, Jian Sun, Heung-Yeung Shum
2010 2010 IEEE Computer Society Conference on Computer Vision and Pattern Recognition  
On a one-millon face database, we show that our local features and global hamming signatures are complementary-the inverted index based on local features provides candidate images with good recall, while  ...  the multi-reference re-ranking with global hamming signature leads to good precision.  ...  Multi-reference re-ranking The candidate images returned from traversing index are initially ranked based on the number of matched visual words, i.e., it is solely based on the query image.  ... 
doi:10.1109/cvpr.2010.5539976 dblp:conf/cvpr/WuKSS10 fatcat:q4e5kt4clvdu7kmyosibq3iiei

Scalable Face Image Retrieval with Identity-Based Quantization and Multireference Reranking

Zhong Wu, Qifa Ke, Jian Sun, Heung-Yeung Shum
2011 IEEE Transactions on Pattern Analysis and Machine Intelligence  
On a one-millon face database, we show that our local features and global hamming signatures are complementary-the inverted index based on local features provides candidate images with good recall, while  ...  the multi-reference re-ranking with global hamming signature leads to good precision.  ...  Multi-reference re-ranking The candidate images returned from traversing index are initially ranked based on the number of matched visual words, i.e., it is solely based on the query image.  ... 
doi:10.1109/tpami.2011.111 pmid:21646678 fatcat:eklftkfx3jbgxalfsvskobxmsm


S. Meena
2017 International Journal of Advanced Research in Computer Science  
a digital signature and image captcha is an innovative factor to verify an each user.  ...  In this paper, we have implemented a novel verification technique that associate with static username and password as a way in authentication followed by OTP based on the token generator method along with  ...  This introduced query based image captcha process reduces unauthorized access also robustness. The sample image captcha related query is shown in the following figure 2.  ... 
doi:10.26483/ijarcs.v8i7.4566 fatcat:itqvg74ebvharfjnavtfjhduge

Compact image signature generation: An application in image retrieval

Manish Chowdhury, Sudeb Das, Malay Kumar Kundu
2013 2013 5th International Conference on Computer Science and Information Technology  
In this article, we have proposed a novel Content Based Image Retrieval (CBIR) system, where each image in the database is represented by a compact image signature which is computed using the Nonsubsampled  ...  Extensive experiments were carried out to evaluate the effectiveness of the proposed system on SIMPLIcity image database consisting of 1000 images.  ...  Multi-class prediction mechanism using LS-SVM based on the image signatures is discussed in Section III.  ... 
doi:10.1109/csit.2013.6588749 fatcat:phyibjzj5jctzhcogl26wbo3fq

Indexing images in Oracle8i

Melliyal Annamalai, Rajiv Chopra, Samuel DeFazio, Susan Mavris
2000 Proceedings of the 2000 ACM SIGMOD international conference on Management of data - SIGMOD '00  
The design of the index type is based on a multi-level ltering algorithm. The lters reduce the search space so that the expensive comparison algorithm operates on a small subset of the data.  ...  Content-based retrieval of images is the ability t o retrieve images that are similar to a query image.  ...  The index implementation is based on a multi-level lter, with the rst lter based on multiple bitmap indexes.  ... 
doi:10.1145/342009.335463 dblp:conf/sigmod/AnnamalaiCD00 fatcat:nt7zyxmthvfynpxxmbwzhw6w6y
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