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Neural networks trained to classify images do so by identifying features that allow them to distinguish between classes. These sets of features are either causal or context dependent. Grad-CAM is a popular method of visualizing both sets of…

Computer Vision and Pattern Recognition · Computer Science 2021-03-24 Mohit Prabhushankar , Ghassan AlRegib

We present an unsupervised visual feature learning algorithm driven by context-based pixel prediction. By analogy with auto-encoders, we propose Context Encoders -- a convolutional neural network trained to generate the contents of an…

Computer Vision and Pattern Recognition · Computer Science 2016-11-22 Deepak Pathak , Philipp Krahenbuhl , Jeff Donahue , Trevor Darrell , Alexei A. Efros

Image distortion classification and detection is an important task in many applications. For example when compressing images, if we know the exact location of the distortion, then it is possible to re-compress images by adjusting the local…

Computer Vision and Pattern Recognition · Computer Science 2018-05-29 Namhyuk Ahn , Byungkon Kang , Kyung-Ah Sohn

In computer vision tasks, the ability to focus on relevant regions within an image is crucial for improving model performance, particularly when key features are small, subtle, or spatially dispersed. Convolutional neural networks (CNNs)…

Computer Vision and Pattern Recognition · Computer Science 2024-12-10 Mahmudul Hasan

Deep learning opacity often impedes deployment in high-stakes domains. We propose a training framework that aligns model focus with class-representative features without requiring pixel-level annotations. To this end, we introduce…

Artificial Intelligence · Computer Science 2026-02-16 Giacomo Ignesti , Davide Moroni , Massimo Martinelli

Over the last decade, Convolutional Neural Network (CNN) models have been highly successful in solving complex vision problems. However, these deep models are perceived as "black box" methods considering the lack of understanding of their…

Computer Vision and Pattern Recognition · Computer Science 2018-11-13 Aditya Chattopadhyay , Anirban Sarkar , Prantik Howlader , Vineeth N Balasubramanian

Intrinsic image decomposition is an important and long-standing computer vision problem. Given an input image, recovering the physical scene properties is ill-posed. Several physically motivated priors have been used to restrict the…

Computer Vision and Pattern Recognition · Computer Science 2022-09-27 Zongji Wang , Yunfei Liu , Feng Lu

We evaluate whether features extracted from the activation of a deep convolutional network trained in a fully supervised fashion on a large, fixed set of object recognition tasks can be re-purposed to novel generic tasks. Our generic tasks…

Computer Vision and Pattern Recognition · Computer Science 2013-10-08 Jeff Donahue , Yangqing Jia , Oriol Vinyals , Judy Hoffman , Ning Zhang , Eric Tzeng , Trevor Darrell

What is an image and how to extract latent features? Convolutional Networks (ConvNets) consider an image as organized pixels in a rectangular shape and extract features via convolutional operation in local region; Vision Transformers (ViTs)…

Computer Vision and Pattern Recognition · Computer Science 2023-03-03 Xu Ma , Yuqian Zhou , Huan Wang , Can Qin , Bin Sun , Chang Liu , Yun Fu

Most approaches to human attribute and action recognition in still images are based on image representation in which multi-scale local features are pooled across scale into a single, scale-invariant encoding. Both in bag-of-words and the…

Computer Vision and Pattern Recognition · Computer Science 2018-03-28 Fahad Shahbaz Khan , Joost van de Weijer , Rao Muhammad Anwer , Andrew D. Bagdanov , Michael Felsberg , Jorma Laaksonen

The backbone of traditional CNN classifier is generally considered as a feature extractor, followed by a linear layer which performs the classification. We propose a novel loss function, termed as CAM-loss, to constrain the embedded feature…

Computer Vision and Pattern Recognition · Computer Science 2022-03-09 Chaofei Wang , Jiayu Xiao , Yizeng Han , Qisen Yang , Shiji Song , Gao Huang

It has long been considered a significant problem to improve the visual quality of lossy image and video compression. Recent advances in computing power together with the availability of large training data sets has increased interest in…

Multimedia · Computer Science 2017-03-30 Aaditya Prakash , Nick Moran , Solomon Garber , Antonella DiLillo , James Storer

We test this premise and explore representation spaces from a single deep convolutional network and their visualization to argue for a novel unified feature extraction framework. The objective is to utilize and re-purpose trained feature…

Computer Vision and Pattern Recognition · Computer Science 2017-07-19 Dalton Lunga , Dilip Patlolla , Lexie Yang , Jeanette Weaver , Budhendra Bhadhuri

Convolutional Neural Networks (CNNs) are powerful models that achieve impressive results for image classification. In addition, pre-trained CNNs are also useful for other computer vision tasks as generic feature extractors. This paper aims…

Computer Vision and Pattern Recognition · Computer Science 2015-07-10 Ben Athiwaratkun , Keegan Kang

Although unsupervised generative modeling of an image dataset using a Variational AutoEncoder (VAE) has been used to detect anomalous images, or anomalous regions in images, recent works have shown that this method often identifies images…

Computer Vision and Pattern Recognition · Computer Science 2020-08-13 David Dehaene , Pierre Eline

In this paper, we propose a method for image-set classification based on convex cone models, focusing on the effectiveness of convolutional neural network (CNN) features as inputs. CNN features have non-negative values when using the…

Computer Vision and Pattern Recognition · Computer Science 2018-06-01 Naoya Sogi , Taku Nakayama , Kazuhiro Fukui

Class activation map (CAM) has been widely used to highlight image regions that contribute to class predictions. Despite its simplicity and computational efficiency, CAM often struggles to identify discriminative regions that distinguish…

Computer Vision and Pattern Recognition · Computer Science 2025-04-01 Ziheng Zhang , Jianyang Gu , Arpita Chowdhury , Zheda Mai , David Carlyn , Tanya Berger-Wolf , Yu Su , Wei-Lun Chao

In the recent time deep learning has achieved huge popularity due to its performance in various machine learning algorithms. Deep learning as hierarchical or structured learning attempts to model high level abstractions in data by using a…

Computer Vision and Pattern Recognition · Computer Science 2019-04-26 Parth Shah , Vishvajit Bakrola , Supriya Pati

This research mainly emphasizes on traffic detection thus essentially involving object detection and classification. The particular work discussed here is motivated from unsatisfactory attempts of re-using well known pre-trained object…

Computer Vision and Pattern Recognition · Computer Science 2018-05-24 Baljit Kaur , Jhilik Bhattacharya

Over the past decade deep learning has revolutionized the field of computer vision, with convolutional neural network models proving to be very effective for image classification benchmarks. However, a fundamental theoretical questions…

Computer Vision and Pattern Recognition · Computer Science 2023-07-04 Vinoth Nandakumar , Arush Tagade , Tongliang Liu