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While it is nearly effortless for humans to quickly assess the perceptual similarity between two images, the underlying processes are thought to be quite complex. Despite this, the most widely used perceptual metrics today, such as PSNR and…

Computer Vision and Pattern Recognition · Computer Science 2018-04-12 Richard Zhang , Phillip Isola , Alexei A. Efros , Eli Shechtman , Oliver Wang

Living in the age of the digital media explosion, the amount of data that is being stored increases dramatically. However, even if existing storage systems suggest efficiency in capacity, they are lacking in durability. Hard disks, flash,…

Image and Video Processing · Electrical Eng. & Systems 2019-04-08 Melpomeni Dimopoulou , Marc Antonini , Pascal Barbry , Raja Appuswamy

With the rapid growth of textual content on the Internet, efficient large-scale semantic text retrieval has garnered increasing attention from both academia and industry. Text hashing, which projects original texts into compact binary hash…

Information Retrieval · Computer Science 2025-11-03 Liyang He , Zhenya Huang , Cheng Yang , Rui Li , Zheng Zhang , Kai Zhang , Zhi Li , Qi Liu , Enhong Chen

This paper presents a deep learning approach for image retrieval and pattern spotting in digital collections of historical documents. First, a region proposal algorithm detects object candidates in the document page images. Next, deep…

Computer Vision and Pattern Recognition · Computer Science 2022-08-05 Caio da S. Dias , Alceu de S. Britto , Jean P. Barddal , Laurent Heutte , Alessandro L. Koerich

This paper describes a method to efficiently retrieve protein database sequences similar to a query sequence, while allowing for significant numbers of mutations. We call this method SEQR for SEQuence Retrieval. This approach increases the…

Genomics · Quantitative Biology 2018-11-05 David I. Hurwitz , Lianyi Han , Lewis Y. Geer

The yearly global production of data is growing exponentially, outpacing the capacity of existing storage media, such as tape and disk, and surpassing our ability to store it. DNA storage - the representation of arbitrary information as…

Quantitative Methods · Quantitative Biology 2023-10-04 Thomas Heinis , Roman Sokolovskii , Jamie J. Alnasir

In the real world, the degradation of images taken under haze can be quite complex, where the spatial distribution of haze is varied from image to image. Recent methods adopt deep neural networks to recover clean scenes from hazy images…

Computer Vision and Pattern Recognition · Computer Science 2021-11-19 Tian Ye , Mingchao Jiang , Yunchen Zhang , Liang Chen , Erkang Chen , Pen Chen , Zhiyong Lu

Unsupervised hashing can desirably support scalable content-based image retrieval (SCBIR) for its appealing advantages of semantic label independence, memory and search efficiency. However, the learned hash codes are embedded with limited…

Information Retrieval · Computer Science 2019-04-26 Lei Zhu , Zi Huang , Zhihui Li , Liang Xie , Heng Tao Shen

Similarity search (nearest neighbor search) is a problem of pursuing the data items whose distances to a query item are the smallest from a large database. Various methods have been developed to address this problem, and recently a lot of…

Data Structures and Algorithms · Computer Science 2014-08-14 Jingdong Wang , Heng Tao Shen , Jingkuan Song , Jianqiu Ji

When reasoning about tasks that involve large amounts of data, a common approach is to represent data items as objects in the Hamming space where operations can be done efficiently and effectively. Object similarity can then be computed by…

Information Retrieval · Computer Science 2021-03-29 Christian Hansen , Casper Hansen , Jakob Grue Simonsen , Christina Lioma

We propose a flexible procedure for large-scale image search by hash functions with kernels. Our method treats binary codes and pairwise semantic similarity as latent and observed variables, respectively, in a probabilistic model based on…

Computer Vision and Pattern Recognition · Computer Science 2016-04-26 Bahadir Ozdemir , Larry S. Davis

In this paper we introduce a new digital image forensics approach called forensic similarity, which determines whether two image patches contain the same forensic trace or different forensic traces. One benefit of this approach is that…

Computer Vision and Pattern Recognition · Computer Science 2020-04-22 Owen Mayer , Matthew C. Stamm

In this paper, we propose a learning-based supervised discrete hashing method. Binary hashing is widely used for large-scale image retrieval as well as video and document searches because the compact representation of binary code is…

Computer Vision and Pattern Recognition · Computer Science 2016-12-01 Gou Koutaki , Keiichiro Shirai , Mitsuru Ambai

Fast nearest neighbor searching is becoming an increasingly important tool in solving many large-scale problems. Recently a number of approaches to learning data-dependent hash functions have been developed. In this work, we propose a…

Machine Learning · Computer Science 2013-03-05 Xi Li , Guosheng Lin , Chunhua Shen , Anton van den Hengel , Anthony Dick

Deep Convolutional Neural Network (CNN) features have been demonstrated to be effective perceptual quality features. The perceptual loss, based on feature maps of pre-trained CNN's has proven to be remarkably effective for CNN based…

Computer Vision and Pattern Recognition · Computer Science 2019-07-30 Taimoor Tariq , Juan Luis Gonzalez , Munchurl Kim

The shear number of sources that will be detected by next-generation radio surveys will be astronomical, which will result in serendipitous discoveries. Data-dependent deep hashing algorithms have been shown to be efficient at image…

Computer Vision and Pattern Recognition · Computer Science 2023-09-06 Steven Ndung'u , Trienko Grobler , Stefan J. Wijnholds , Dimka Karastoyanova , George Azzopardi

Locality-sensitive hashing (LSH) is an important tool for managing high-dimensional noisy or uncertain data, for example in connection with data cleaning (similarity join) and noise-robust search (similarity search). However, for a number…

Data Structures and Algorithms · Computer Science 2018-04-18 Martin Aumüller , Tobias Christiani , Rasmus Pagh , Francesco Silvestri

Proliferation of touch-based devices has made sketch-based image retrieval practical. While many methods exist for sketch-based object detection/image retrieval on small datasets, relatively less work has been done on large (web)-scale…

Computer Vision and Pattern Recognition · Computer Science 2015-11-03 Sarthak Parui , Anurag Mittal

This paper describes a novel approach to synthesize molecular reactions to train a perceptron, i.e., a single-layered neural network, with sigmoidal activation function. The approach is based on fractional coding where a variable is…

Emerging Technologies · Computer Science 2020-04-01 Xingyi Liu , Keshab K. Parhi

We present a novel spatial hashing based data structure to facilitate 3D shape analysis using convolutional neural networks (CNNs). Our method well utilizes the sparse occupancy of 3D shape boundary and builds hierarchical hash tables for…

Graphics · Computer Science 2019-04-19 Tianjia Shao , Yin Yang , Yanlin Weng , Qiming Hou , Kun Zhou
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