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We present a new wrapper feature selection algorithm for human detection. This algorithm is a hybrid feature selection approach combining the benefits of filter and wrapper methods. It allows the selection of an optimal feature vector that…

Computer Vision and Pattern Recognition · Computer Science 2025-03-24 Jeonghwan Park , Kang Li , Huiyu Zhou

The characteristics of feature selection, nonlinear combination and multi-task auxiliary learning mechanism of the human visual perception system play an important role in real-world scenarios, but the research of image fusion theory based…

Computer Vision and Pattern Recognition · Computer Science 2020-06-23 Aiqing Fang , Xinbo Zhao , Jiaqi Yang , Yanning Zhang

Image compression has been applied in the fields of image storage and video broadcasting. However, it's formidably tough to distinguish the subtle quality differences between those distorted images generated by different algorithms. In this…

Computer Vision and Pattern Recognition · Computer Science 2024-01-17 Kaiqun Wu , Xiaoling Jiang , Rui Yu , Yonggang Luo , Tian Jiang , Xi Wu , Peng Wei

We present a method for visual object classification using only a single feature, transformed color SIFT with a variant of Spatial Pyramid Matching (SPM) that we called Sliding Spatial Pyramid Matching (SSPM), trained with an ensemble of…

Computer Vision and Pattern Recognition · Computer Science 2012-12-19 Hao Wooi Lim , Yong Haur Tay

Content-based image retrieval (CBIR) is one of the most active research areas in multimedia information retrieval. Given a query image, the task is to search relevant images in a repository. Low level features like color, texture, and shape…

Computer Vision and Pattern Recognition · Computer Science 2018-12-12 Asheet Kumar , Shivam Choudhary , Vaibhav Singh Khokhar , Vikas Meena , Chiranjoy Chattopadhyay

Accurate classification of weather conditions in images is essential for enhancing the performance of object detection and classification models under varying weather conditions. This paper presents a comprehensive study on classifying…

Computer Vision and Pattern Recognition · Computer Science 2024-09-04 Eden Ship , Eitan Spivak , Shubham Agarwal , Raz Birman , Ofer Hadar

In this paper, we propose a method for image-set classification based on convex cone models. Image set classification aims to classify a set of images, which were usually obtained from video frames or multi-view cameras, into a target…

Computer Vision and Pattern Recognition · Computer Science 2019-03-18 Naoya Sogi , Rui Zhu , Jing-Hao Xue , Kazuhiro Fukui

Current top-performing blind perceptual image quality prediction models are generally trained on legacy databases of human quality opinion scores on synthetically distorted images. Therefore they learn image features that effectively…

Computer Vision and Pattern Recognition · Computer Science 2016-09-16 Deepti Ghadiyaram , Alan C. Bovik

The bag-of-words (BOW) model is the common approach for classifying documents, where words are used as feature for training a classifier. This generally involves a huge number of features. Some techniques, such as Latent Semantic Analysis…

Computation and Language · Computer Science 2015-04-13 Rémi Lebret , Ronan Collobert

Convolutional Neural Networks (CNNs) are well established models capable of achieving state-of-the-art classification accuracy for various computer vision tasks. However, they are becoming increasingly larger, using millions of parameters,…

Computer Vision and Pattern Recognition · Computer Science 2017-07-27 Nikolaos Passalis , Anastasios Tefas

Image classification is a fundamental computer vision task and an important baseline for deep metric learning. In decades efforts have been made on enhancing image classification accuracy by using deep learning models while less attention…

Computer Vision and Pattern Recognition · Computer Science 2025-01-14 Yunfeng Zhao , Huiyu Zhou , Fei Wu , Xifeng Wu

Dictionary learning is a cornerstone of image classification. We set out to address a longstanding challenge in using dictionary learning for classification; that is to simultaneously maximise the discriminability and…

Computer Vision and Pattern Recognition · Computer Science 2020-12-08 Rasool Ameri , Ali Alameer , Saideh Ferdowsi , Kianoush Nazarpour , Vahid Abolghasemi

In this paper, we propose a method using the fusion of CNN and transformer structure to improve image classification performance. In the case of CNN, information about a local area on an image can be extracted well, but there is a limit to…

Computer Vision and Pattern Recognition · Computer Science 2022-08-22 Keong Hun Choi , Jin Woo Kim , Yao Wang , Jong Eun Ha

Continuous Bag of Words (CBOW) is a powerful text embedding method. Due to its strong capabilities to encode word content, CBOW embeddings perform well on a wide range of downstream tasks while being efficient to compute. However, CBOW is…

Computation and Language · Computer Science 2019-02-19 Florian Mai , Lukas Galke , Ansgar Scherp

This work aims to reproduce results from the CVPR 2020 paper by Gidaris et al. Self-supervised learning (SSL) is used to learn feature representations of an image using an unlabeled dataset. This work proposes to use bag-of-words (BoW) deep…

Computer Vision and Pattern Recognition · Computer Science 2022-01-19 Harry Nguyen , Stone Yun , Hisham Mohammad

Word embedding models learn semantically rich vector representations of words and are widely used to initialize natural processing language (NLP) models. The popular continuous bag-of-words (CBOW) model of word2vec learns a vector embedding…

Computation and Language · Computer Science 2020-06-02 Shashank Sonkar , Andrew E. Waters , Richard G. Baraniuk

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

Baggage inspection systems using X-ray screening are crucial for security. Only 90% of threat objects are recognized from the X-ray system based in human inspection. Manual detection requires high concentration due to the images complexity…

Image and Video Processing · Electrical Eng. & Systems 2019-03-06 David Castro Piñol , Enrique Juan Marañón Reyes

Aggregating different image features for image retrieval has recently shown its effectiveness. While highly effective, though, the question of how to uplift the impact of the best features for a specific query image persists as an open…

Computer Vision and Pattern Recognition · Computer Science 2018-08-16 Leulseged Tesfaye Alemu , Marcello Pelillo

We investigate an applicability of Bayesian-optimization (BO) to optimize hyperparameters associated with support-vector-machine (SVM) in order to classify facies using elastic properties derived from well data in the East Central Graben,…

Geophysics · Physics 2022-04-04 Yohei Nishitsuji , Jalil Nasseri