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Cognition does not only depend on bottom-up sensor feature abstraction, but also relies on contextual information being passed top-down. Context is higher level information that helps to predict belief states at lower levels. The main…

Artificial Intelligence · Computer Science 2018-01-09 Bernhard Hengst , Maurice Pagnucco , David Rajaratnam , Claude Sammut , Michael Thielscher

Contextual information plays an important role in many computer vision tasks, such as object detection, video action detection, image classification, etc. Recognizing a single object or action out of context could be sometimes very…

Computer Vision and Pattern Recognition · Computer Science 2023-02-13 Xuan Wang , Zhigang Zhu

Loss-gradients are used to interpret the decision making process of deep learning models. In this work, we evaluate loss-gradient based attribution methods by occluding parts of the input and comparing the performance of the occluded input…

Machine Learning · Computer Science 2022-07-19 Vinod Subramanian , Siddharth Gururani , Emmanouil Benetos , Mark Sandler

Deep robot vision models are widely used for recognizing objects from camera images, but shows poor performance when detecting objects at untrained positions. Although such problem can be alleviated by training with large datasets, the…

Robotics · Computer Science 2022-10-26 Hyogo Hiruma , Hiroki Mori , Hiroshi Ito , Tetsuya Ogata

This paper proposes a self-supervised objective for learning representations that localize objects under occlusion - a property known as object permanence. A central question is the choice of learning signal in cases of total occlusion.…

Computer Vision and Pattern Recognition · Computer Science 2022-06-14 Pavel Tokmakov , Allan Jabri , Jie Li , Adrien Gaidon

Object-centric learning (OCL) aims to learn representations of individual objects within visual scenes without manual supervision, facilitating efficient and effective visual reasoning. Traditional OCL methods primarily employ bottom-up…

Computer Vision and Pattern Recognition · Computer Science 2024-11-11 Dongwon Kim , Seoyeon Kim , Suha Kwak

Object perception is a fundamental sub-field of Computer Vision, covering a multitude of individual areas and having contributed high-impact results. While Machine Learning has been traditionally applied to address related problems, recent…

Computer Vision and Pattern Recognition · Computer Science 2020-03-18 Filippos Gouidis , Alexandros Vassiliades , Theodore Patkos , Antonis Argyros , Nick Bassiliades , Dimitris Plexousakis

Modern object detection and instance segmentation networks stumble when picking out humans in crowded or highly occluded scenes. Yet, these are often scenarios where we require our detectors to work well. Many works have approached this…

Computer Vision and Pattern Recognition · Computer Science 2022-10-10 Evan Ling , Dezhao Huang , Minhoe Hur

Existing attention mechanisms either attend to local image grid or object level features for Visual Question Answering (VQA). Motivated by the observation that questions can relate to both object instances and their parts, we propose a…

Computer Vision and Pattern Recognition · Computer Science 2021-08-30 Moshiur R Farazi , Salman H Khan

Bottom-up and top-down, as well as low-level and high-level factors influence where we fixate when viewing natural scenes. However, the importance of each of these factors and how they interact remains a matter of debate. Here, we…

Neurons and Cognition · Quantitative Biology 2018-05-18 Heiko H. Schütt , Lars O. M. Rothkegel , Hans A. Trukenbrod , Ralf Engbert , Felix A. Wichmann

Camouflaged objects adaptively fit their color and texture with the environment, which makes them indistinguishable from the surroundings. Current methods revealed that high-level semantic features can highlight the differences between…

Computer Vision and Pattern Recognition · Computer Science 2024-09-23 Jiepan Li , Fangxiao Lu , Nan Xue , Zhuohong Li , Hongyan Zhang , Wei He

Top-down visual attention mechanisms have been used extensively in image captioning and visual question answering (VQA) to enable deeper image understanding through fine-grained analysis and even multiple steps of reasoning. In this work,…

Computer Vision and Pattern Recognition · Computer Science 2018-03-15 Peter Anderson , Xiaodong He , Chris Buehler , Damien Teney , Mark Johnson , Stephen Gould , Lei Zhang

This study analyzes object-oriented (OO) program comprehension by experts and novices. We examine the effect of expertise in three dimensions of comprehension strategies: the scope of the comprehension, the top-down versus bottom-up…

Human-Computer Interaction · Computer Science 2016-08-14 Jean-Marie Burkhardt , Françoise Détienne , Susan Wiedenbeck

Image matching is a fundamental and critical task in various visual applications, such as Simultaneous Localization and Mapping (SLAM) and image retrieval, which require accurate pose estimation. However, most existing methods ignore the…

Computer Vision and Pattern Recognition · Computer Science 2023-08-31 Miao Fan , Mingrui Chen , Chen Hu , Shuchang Zhou

Natural scene understanding is a challenging task, particularly when encountering images of multiple objects that are partially occluded. This obstacle is given rise by varying object ordering and positioning. Existing scene understanding…

Computer Vision and Pattern Recognition · Computer Science 2020-04-07 Xiaohang Zhan , Xingang Pan , Bo Dai , Ziwei Liu , Dahua Lin , Chen Change Loy

Detecting occluded objects still remains a challenge for state-of-the-art object detectors. The objective of this work is to improve the detection for such objects, and thereby improve the overall performance of a modern object detector. To…

Computer Vision and Pattern Recognition · Computer Science 2022-10-19 Guanqi Zhan , Weidi Xie , Andrew Zisserman

We present a new algorithm for multi-region segmentation of 2D images with objects that may partially occlude each other. Our algorithm is based on the observation hat human performance on this task is based both on prior knowledge about…

Computer Vision and Pattern Recognition · Computer Science 2016-06-16 Yuka Kihara , Matvey Soloviev , Tsuhan Chen

Handling object interaction is a fundamental challenge in practical multi-object tracking, even for simple interactive effects such as one object temporarily occluding another. We formalize the problem of occlusion in tracking with two…

Computer Vision and Pattern Recognition · Computer Science 2018-05-23 Michael Motro , Joydeep Ghosh

Deep convolutional neural networks (DCNNs) are powerful models that yield impressive results at object classification. However, recent work has shown that they do not generalize well to partially occluded objects and to mask attacks. In…

Computer Vision and Pattern Recognition · Computer Science 2020-01-30 Adam Kortylewski , Qing Liu , Huiyu Wang , Zhishuai Zhang , Alan Yuille

We present a learning approach for localization and segmentation of objects in an image in a manner that is robust to partial occlusion. Our algorithm produces a bounding box around the full extent of the object and labels pixels in the…

Computer Vision and Pattern Recognition · Computer Science 2015-07-29 Samarth Brahmbhatt , Heni Ben Amor , Henrik Christensen