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Detecting complex events in a large video collection crawled from video websites is a challenging task. When applying directly good image-based feature representation, e.g., HOG, SIFT, to videos, we have to face the problem of how to pool…

Computer Vision and Pattern Recognition · Computer Science 2016-08-22 Lan Wang , Chenqiang Gao , Jiang Liu , Deyu Meng

The high dimensionality of hyperspectral images often imposes a heavy computational burden for image processing. Therefore, dimensionality reduction is often an essential step in order to remove the irrelevant, noisy and redundant bands.…

Computer Vision and Pattern Recognition · Computer Science 2022-11-01 Asma Elmaizi , Maria Merzouqi , Elkebir Sarhrouni , Ahmed hammouch , Chafik Nacir

We present a method for calibrating the Ensemble of Exemplar SVMs model. Unlike the standard approach, which calibrates each SVM independently, our method optimizes their joint performance as an ensemble. We formulate joint calibration as a…

Computer Vision and Pattern Recognition · Computer Science 2015-04-27 Davide Modolo , Alexander Vezhnevets , Olga Russakovsky , Vittorio Ferrari

Pedestrian Detection is the most critical module of an Autonomous Driving system. Although a camera is commonly used for this purpose, its quality degrades severely in low-light night time driving scenarios. On the other hand, the quality…

Computer Vision and Pattern Recognition · Computer Science 2022-01-25 Kinjal Dasgupta , Arindam Das , Sudip Das , Ujjwal Bhattacharya , Senthil Yogamani

In this paper, we present a novel approach for object recognition in real-time by employing multilevel feature analysis and demonstrate the practicality of adapting feature extraction into a Naive Bayesian classification framework that…

Computer Vision and Pattern Recognition · Computer Science 2017-10-31 Yang Cheng , Timeo Dubois

For image recognition, an extensive number of methods have been proposed to overcome the high-dimensionality problem of feature vectors being used. These methods vary from unsupervised to supervised, and from statistics to graph-theory…

Computer Vision and Pattern Recognition · Computer Science 2018-01-12 Cigdem Turan , Kin-Man Lam , Xiangjian He

We present an optical wavefront shaping approach that allows tracking and localization of signal hidden inside or behind a scattering medium. The method combines traditional feedback based wavefront shaping together with a switch function,…

Presented is a novel way to combine snapshot compressive imaging and lateral shearing interferometry in order to capture the spatio-spectral phase of an ultrashort laser pulse in a single shot. A deep unrolling algorithm is utilised for the…

This work presents a comparison of machine learning algorithms that are implemented to segment the characters of text presented as an image. The algorithms are designed to work on degraded documents with text that is not aligned in an…

Computer Vision and Pattern Recognition · Computer Science 2021-07-29 P Preethi , Hrishikesh Viswanath

Most existing person re-identification algorithms either extract robust visual features or learn discriminative metrics for person images. However, the underlying manifold which those images reside on is rarely investigated. That raises a…

Computer Vision and Pattern Recognition · Computer Science 2017-03-27 Song Bai , Xiang Bai , Qi Tian

Matching-based methods, especially those based on space-time memory, are significantly ahead of other solutions in semi-supervised video object segmentation (VOS). However, continuously growing and redundant template features lead to an…

Computer Vision and Pattern Recognition · Computer Science 2022-08-23 Zhihui Lin , Tianyu Yang , Maomao Li , Ziyu Wang , Chun Yuan , Wenhao Jiang , Wei Liu

Convolutional Neural Network (CNN) is a very powerful approach to extract discriminative local descriptors for effective image search. Recent work adopts fine-tuned strategies to further improve the discriminative power of the descriptors.…

Computer Vision and Pattern Recognition · Computer Science 2017-11-28 Tuan Hoang , Thanh-Toan Do , Dang-Khoa Le Tan , Ngai-Man Cheung

Object detection performance, as measured on the canonical PASCAL VOC dataset, has plateaued in the last few years. The best-performing methods are complex ensemble systems that typically combine multiple low-level image features with…

Computer Vision and Pattern Recognition · Computer Science 2014-10-23 Ross Girshick , Jeff Donahue , Trevor Darrell , Jitendra Malik

Are score function estimators an underestimated approach to learning with $k$-subset sampling? Sampling $k$-subsets is a fundamental operation in many machine learning tasks that is not amenable to differentiable parametrization, impeding…

Machine Learning · Computer Science 2024-08-19 Klas Wijk , Ricardo Vinuesa , Hossein Azizpour

Background and purpose: Heart disease has been one of the most important causes of death in the last 10 years, so the use of classification methods to diagnose and predict heart disease is very important. If this disease is predicted before…

Machine Learning · Computer Science 2021-03-16 Jafar Abdollahi , Babak Nouri-Moghaddam

We present a progressive image decomposition method based on a novel non-linear filter named Sub-window Variance filter. Our method is specifically designed for image detail enhancement purpose; this application requires extraction of image…

Computer Vision and Pattern Recognition · Computer Science 2021-07-23 Kin-Ming Wong

A method for object classification that is based on distribution analysis is proposed. In addition, a method for finding relevant features and the unification of this algorithm with another classification algorithm is proposed. The…

Machine Learning · Computer Science 2021-11-09 Thomas Olschewski

Morphological methods play a crucial role in remote sensing image processing, due to their ability to capture and preserve small structural details. However, most of the existing deep learning models for semantic segmentation are based on…

Computer Vision and Pattern Recognition · Computer Science 2025-03-11 Jun Xie , Wenxiao Li , Faqiang Wang , Liqiang Zhang , Zhengyang Hou , Jun Liu

A saliency guided hierarchical visual tracking (SHT) algorithm containing global and local search phases is proposed in this paper. In global search, a top-down saliency model is novelly developed to handle abrupt motion and appearance…

Computer Vision and Pattern Recognition · Computer Science 2018-12-24 Fangwen Tu , Shuzhi Sam Ge , Yazhe Tang , Chang Chieh Hang

Medical image analysis has become a topic under the spotlight in recent years. There is a significant progress in medical image research concerning the usage of machine learning. However, there are still numerous questions and problems…

Image and Video Processing · Electrical Eng. & Systems 2018-05-16 Taha J. Alhindi , Shivam Kalra , Ka Hin Ng , Anika Afrin , Hamid R. Tizhoosh