English
Related papers

Related papers: Feature Dimensionality Reduction for Video Affect …

200 papers

Dimensionality reduction can be applied to hyperspectral images so that the most useful data can be extracted and processed more quickly. This is critical in any situation in which data volume exceeds the capacity of the computational…

Image and Video Processing · Electrical Eng. & Systems 2024-02-27 Daniela Lupu , Joseph L. Garrett , Tor Arne Johansen , Milica Orlandic , Ion Necoara

Human affective recognition is an important factor in human-computer interaction. However, the method development with in-the-wild data is not yet accurate enough for practical usage. In this paper, we introduce the affective recognition…

Computer Vision and Pattern Recognition · Computer Science 2020-10-05 Sachihiro Youoku , Yuushi Toyoda , Takahisa Yamamoto , Junya Saito , Ryosuke Kawamura , Xiaoyu Mi , Kentaro Murase

Facial expression-based human emotion recognition is a critical research area in psychology and medicine. State-of-the-art classification performance is only reached by end-to-end trained neural networks. Nevertheless, such black-box models…

Computer Vision and Pattern Recognition · Computer Science 2024-04-12 Tim Büchner , Niklas Penzel , Orlando Guntinas-Lichius , Joachim Denzler

Feature ranking and selection is a widely used approach in various applications of supervised dimensionality reduction in discriminative machine learning. Nevertheless there exists significant evidence on feature ranking and selection…

Machine Learning · Computer Science 2021-05-04 Ozan Ozdenizci , Deniz Erdogmus

Digital images nowadays have various styles of appearance, in the aspects of color tones, contrast, vignetting, and etc. These 'picture styles' are directly related to the scene radiance, image pipeline of the camera, and post processing…

Computer Vision and Pattern Recognition · Computer Science 2014-05-30 Zhenyu Guo , Z. Jane Wang

Sentiment Analysis refers to the study of systematically extracting the meaning of subjective text . When analysing sentiments from the subjective text using Machine Learning techniques,feature extraction becomes a significant part. We…

Computation and Language · Computer Science 2019-06-05 Avinash Madasu , Sivasankar E

Movement primitives are an important policy class for real-world robotics. However, the high dimensionality of their parametrization makes the policy optimization expensive both in terms of samples and computation. Enabling an efficient…

Robotics · Computer Science 2020-03-06 Samuele Tosatto , Jonas Stadtmueller , Jan Peters

We introduce the problem of learning affective correspondence between audio (music) and visual data (images). For this task, a music clip and an image are considered similar (having true correspondence) if they have similar emotion content.…

Multimedia · Computer Science 2019-04-18 Gaurav Verma , Eeshan Gunesh Dhekane , Tanaya Guha

Automated facial expression analysis has a variety of applications in human-computer interaction. Traditional methods mainly analyze prototypical facial expressions of no more than eight discrete emotions as a classification task. However,…

Computer Vision and Pattern Recognition · Computer Science 2018-05-04 Feng Zhou , Shu Kong , Charless Fowlkes , Tao Chen , Baiying Lei

Feature selection is a critical step in the analysis of high-dimensional data, where the number of features often vastly exceeds the number of samples. Effective feature selection not only improves model performance and interpretability but…

Machine Learning · Computer Science 2025-01-27 Raquel Espinosa , Gracia Sánchez , José Palma , Fernando Jiménez

Human affect recognition has been a significant topic in psychophysics and computer vision. However, the currently published datasets have many limitations. For example, most datasets contain frames that contain only information about…

Computer Vision and Pattern Recognition · Computer Science 2023-09-18 Zhihang Ren , Jefferson Ortega , Yifan Wang , Zhimin Chen , Yunhui Guo , Stella X. Yu , David Whitney

Visualizing high dimensional data by projecting them into two or three dimensional space is one of the most effective ways to intuitively understand the data's underlying characteristics, for example their class neighborhood structure.…

Machine Learning · Computer Science 2020-04-06 Pitoyo Hartono

Staircase-like contours introduced to a video by quantization in flat areas, commonly known as banding, have been a long-standing problem in both video processing and quality assessment communities. The fact that even a relatively small…

Multimedia · Computer Science 2022-02-23 Lukáš Krasula , Zhi Li , Christos G. Bampis , Mariana Afonso , Nil Fons Miret , Joel Sole

Recognition of human emotions from the imaging templates is useful in a wide variety of human-computer interaction and intelligent systems applications. However, the automatic recognition of facial expressions using image template matching…

Computer Vision and Pattern Recognition · Computer Science 2018-01-03 Olga Krestinskaya , Alex Pappachen James

Affective computing has proven to be a viable field of research comprised of a large number of multidisciplinary researchers resulting in work that is widely published. The majority of this work consists of computational models of emotion…

Artificial Intelligence · Computer Science 2009-03-05 Joost Broekens

Feature selection has drawn much attention over the last decades in machine learning because it can reduce data dimensionality while maintaining the original physical meaning of features, which enables better interpretability than feature…

Machine Learning · Computer Science 2022-09-27 Yiwen Liao , Jochen Rivoir , Raphaël Latty , Bin Yang

It has previously been shown that response transformations can be very effective in improving dimension reduction outcomes for a continuous response. The choice of transformation used can make a big difference in the visualization of the…

Methodology · Statistics 2021-07-01 Marina Masioti , Luke A. Prendergast , Amanda Shaker

With advances in data-driven machine learning research, a wide variety of prediction models have been proposed to capture spatio-temporal features for the analysis of video streams. Recognising actions and detecting action transitions…

Computer Vision and Pattern Recognition · Computer Science 2024-03-06 Harshala Gammulle , David Ahmedt-Aristizabal , Simon Denman , Lachlan Tychsen-Smith , Lars Petersson , Clinton Fookes

Attributes are semantically meaningful characteristics whose applicability widely crosses category boundaries. They are particularly important in describing and recognizing concepts where no explicit training example is given, \textit{e.g.,…

Computer Vision and Pattern Recognition · Computer Science 2017-05-01 Mahdi M. Kalayeh , Boqing Gong , Mubarak Shah

Image segmentation is the task of associating pixels in an image with their respective object class labels. It has a wide range of applications in many industries including healthcare, transportation, robotics, fashion, home improvement,…

Computer Vision and Pattern Recognition · Computer Science 2023-01-19 Yuanbo Wang , Unaiza Ahsan , Hanyan Li , Matthew Hagen