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With the goal of identifying pixel-wise salient object regions from each input image, salient object detection (SOD) has been receiving great attention in recent years. One kind of mainstream SOD methods is formed by a bottom-up feature…

Computer Vision and Pattern Recognition · Computer Science 2021-02-19 Chaowei Fang , Haibin Tian , Dingwen Zhang , Qiang Zhang , Jungong Han , Junwei Han

Most models of visual attention aim at predicting either top-down or bottom-up control, as studied using different visual search and free-viewing tasks. In this paper we propose the Human Attention Transformer (HAT), a single model that…

Computer Vision and Pattern Recognition · Computer Science 2024-04-02 Zhibo Yang , Sounak Mondal , Seoyoung Ahn , Ruoyu Xue , Gregory Zelinsky , Minh Hoai , Dimitris Samaras

Convolutional networks have been the paradigm of choice in many computer vision applications. The convolution operation however has a significant weakness in that it only operates on a local neighborhood, thus missing global information.…

Computer Vision and Pattern Recognition · Computer Science 2020-09-11 Irwan Bello , Barret Zoph , Ashish Vaswani , Jonathon Shlens , Quoc V. Le

Humans are very good at directing their visual attention toward relevant areas when they search for different types of objects. For instance, when we search for cars, we will look at the streets, not at the top of buildings. The motivation…

Computer Vision and Pattern Recognition · Computer Science 2020-06-12 Hughes Perreault , Guillaume-Alexandre Bilodeau , Nicolas Saunier , Maguelonne Héritier

3D face alignment of monocular images is a crucial process in the recognition of faces with disguise.3D face reconstruction facilitated by alignment can restore the face structure which is helpful in detcting disguise interference.This…

Computer Vision and Pattern Recognition · Computer Science 2019-09-02 Lei Jiang Xiao-Jun Wu Josef Kittler

In this paper, we propose a new operator, called 3D DeFormable Attention (DFA3D), for 2D-to-3D feature lifting, which transforms multi-view 2D image features into a unified 3D space for 3D object detection. Existing feature lifting…

Computer Vision and Pattern Recognition · Computer Science 2023-07-25 Hongyang Li , Hao Zhang , Zhaoyang Zeng , Shilong Liu , Feng Li , Tianhe Ren , Lei Zhang

The idea of using the recurrent neural network for visual attention has gained popularity in computer vision community. Although the recurrent attention model (RAM) leverages the glimpses with more large patch size to increasing its scope,…

Computer Vision and Pattern Recognition · Computer Science 2021-11-16 Gang Chen

This paper tackles the challenging task of 3D visual grounding-locating a specific object in a 3D point cloud scene based on text descriptions. Existing methods fall into two categories: top-down and bottom-up methods. Top-down methods rely…

Computer Vision and Pattern Recognition · Computer Science 2024-10-22 Yang Liu , Daizong Liu , Wei Hu

Attentional Neural Network is a new framework that integrates top-down cognitive bias and bottom-up feature extraction in one coherent architecture. The top-down influence is especially effective when dealing with high noise or difficult…

Computer Vision and Pattern Recognition · Computer Science 2014-11-20 Qian Wang , Jiaxing Zhang , Sen Song , Zheng Zhang

Distributed radar sensors enable robust human activity recognition. However, scaling the number of coordinated nodes introduces challenges in feature extraction from large datasets, and transparent data fusion. We propose an end-to-end…

Signal Processing · Electrical Eng. & Systems 2026-01-07 Mina Shahbazifar , Zolfa Zeinalpour-Yazdi , Matthias Hollick , Arash Asadi , Vahid Jamali

In this paper a pure-attention bottom-up approach, called ViGAT, that utilizes an object detector together with a Vision Transformer (ViT) backbone network to derive object and frame features, and a head network to process these features…

Computer Vision and Pattern Recognition · Computer Science 2022-11-01 Nikolaos Gkalelis , Dimitrios Daskalakis , Vasileios Mezaris

Biological vision adopts a coarse-to-fine information processing pathway, from initial visual detection and binding of salient features of a visual scene, to the enhanced and preferential processing given relevant stimuli. On the contrary,…

Computer Vision and Pattern Recognition · Computer Science 2020-04-17 Ioannis Lelekas , Nergis Tomen , Silvia L. Pintea , Jan C. van Gemert

There are two mainstreams for object detection: top-down and bottom-up. The state-of-the-art approaches mostly belong to the first category. In this paper, we demonstrate that the bottom-up approaches are as competitive as the top-down and…

Computer Vision and Pattern Recognition · Computer Science 2022-04-19 Kaiwen Duan , Song Bai , Lingxi Xie , Honggang Qi , Qingming Huang , Qi Tian

Visual attention is a mechanism closely intertwined with vision and memory. Top-down information influences visual processing through attention. We designed a neural network model inspired by aspects of human visual attention. This model…

Computer Vision and Pattern Recognition · Computer Science 2025-06-09 Ruoyang Hu , Robert A. Jacobs

Camera, LiDAR and radar are common perception sensors for autonomous driving tasks. Robust prediction of 3D object detection is optimally based on the fusion of these sensors. To exploit their abilities wisely remains a challenge because…

Computer Vision and Pattern Recognition · Computer Science 2024-05-21 Ziang Guo , Zakhar Yagudin , Selamawit Asfaw , Artem Lykov , Dzmitry Tsetserukou

Fine-grained image classification is a challenging problem, since the difficulty of finding discriminative features. To handle this circumstance, basically, there are two ways to go. One is use attention based method to focus on informative…

Computer Vision and Pattern Recognition · Computer Science 2020-01-08 ZiChao Dong , JiLong Wu , TingTing Ren , Yue Wang , MengYing Ge

Vision Transformer (ViT) self-attention mechanism is characterized by feature collapse in deeper layers, resulting in the vanishing of low-level visual features. However, such features can be helpful to accurately represent and identify…

Computer Vision and Pattern Recognition · Computer Science 2024-08-06 Anxhelo Diko , Danilo Avola , Marco Cascio , Luigi Cinque

In recent years, face recognition systems have achieved exceptional success due to promising advances in deep learning architectures. However, they still fail to achieve expected accuracy when matching profile images against a gallery of…

Computer Vision and Pattern Recognition · Computer Science 2022-09-16 Moktari Mostofa , Mohammad Saeed Ebrahimi Saadabadi , Sahar Rahimi Malakshan , Nasser M. Nasrabadi

Most recent approaches for action recognition from video leverage deep architectures to encode the video clip into a fixed length representation vector that is then used for classification. For this to be successful, the network must be…

Computer Vision and Pattern Recognition · Computer Science 2018-08-30 Swathikiran Sudhakaran , Oswald Lanz

We develop a novel deep contour detection algorithm with a top-down fully convolutional encoder-decoder network. Our proposed method, named TD-CEDN, solves two important issues in this low-level vision problem: (1) learning multi-scale and…

Computer Vision and Pattern Recognition · Computer Science 2017-07-13 Yahui Liu , Jian Yao , Li Li , Xiaohu Lu , Jing Han