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Visual attention mechanisms have proven to be integrally important constituent components of many modern deep neural architectures. They provide an efficient and effective way to utilize visual information selectively, which has shown to be…

计算机视觉与模式识别 · 计算机科学 2019-05-24 Siddhesh Khandelwal , Leonid Sigal

We aim to localize objects in images using image-level supervision only. Previous approaches to this problem mainly focus on discriminative object regions and often fail to locate precise object boundaries. We address this problem by…

计算机视觉与模式识别 · 计算机科学 2016-09-15 Vadim Kantorov , Maxime Oquab , Minsu Cho , Ivan Laptev

Shadow removal aims at restoring the image content within shadow regions, pursuing a uniform distribution of illumination that is consistent between shadow and non-shadow regions. {Comparing to other image restoration tasks, there are two…

计算机视觉与模式识别 · 计算机科学 2024-10-07 Laniqng Guo , Chong Wang , Yufei Wang , Yi Yu , Siyu Huang , Wenhan Yang , Alex C. Kot , Bihan Wen

Shadow detection in general photos is a nontrivial problem, due to the complexity of the real world. Though recent shadow detectors have already achieved remarkable performance on various benchmark data, their performance is still limited…

计算机视觉与模式识别 · 计算机科学 2024-09-06 Xiaowei Hu , Tianyu Wang , Chi-Wing Fu , Yitong Jiang , Qiong Wang , Pheng-Ann Heng

Spatial attention has been introduced to convolutional neural networks (CNNs) for improving both their performance and interpretability in visual tasks including image classification. The essence of the spatial attention is to learn a…

图像与视频处理 · 电气工程与系统科学 2020-08-03 Linchuan Xu , Jun Huang , Atsushi Nitanda , Ryo Asaoka , Kenji Yamanishi

Increasing scene-awareness is a key challenge in video anomaly detection (VAD). In this work, we propose a hierarchical semantic contrast (HSC) method to learn a scene-aware VAD model from normal videos. We first incorporate foreground…

计算机视觉与模式识别 · 计算机科学 2023-03-24 Shengyang Sun , Xiaojin Gong

Shadow removal is a task aimed at erasing regional shadows present in images and reinstating visually pleasing natural scenes with consistent illumination. While recent deep learning techniques have demonstrated impressive performance in…

计算机视觉与模式识别 · 计算机科学 2024-03-18 Chong Wang , Yi Yu , Lanqing Guo , Bihan Wen

Accurate and robust detection of multi-class objects in optical remote sensing images is essential to many real-world applications such as urban planning, traffic control, searching and rescuing, etc. However, state-of-the-art object…

计算机视觉与模式识别 · 计算机科学 2020-01-08 Gongjie Zhang , Shijian Lu , Wei Zhang

Computational color constancy that requires esti- mation of illuminant colors of images is a fundamental yet active problem in computer vision, which can be formulated into a regression problem. To learn a robust regressor for color…

计算机视觉与模式识别 · 计算机科学 2016-08-12 Yanlin Qian , Ke Chen , Joni-Kristian Kamarainen , Jarno Nikkanen , Jiri Matas

Recent deep learning models have demonstrated strong capabilities for classifying text and non-text components in natural images. They extract a high-level feature computed globally from a whole image component (patch), where the cluttered…

计算机视觉与模式识别 · 计算机科学 2016-05-04 Tong He , Weilin Huang , Yu Qiao , Jian Yao

Shadows often occur when we capture the documents with casual equipment, which influences the visual quality and readability of the digital copies. Different from the algorithms for natural shadow removal, the algorithms in document shadow…

计算机视觉与模式识别 · 计算机科学 2024-06-19 Zinuo Li , Xuhang Chen , Chi-Man Pun , Xiaodong Cun

Local structures of shadow boundaries as well as complex interactions of image regions remain largely unexploited by previous shadow detection approaches. In this paper, we present a novel learning-based framework for shadow region recovery…

计算机视觉与模式识别 · 计算机科学 2015-05-11 Li Shen , Teck Wee Chua , Karianto Leman

Scene change detection (SCD), a crucial perception task, identifies changes by comparing scenes captured at different times. SCD is challenging due to noisy changes in illumination, seasonal variations, and perspective differences across a…

计算机视觉与模式识别 · 计算机科学 2022-08-12 Vijaya Raghavan T. Ramkumar , Elahe Arani , Bahram Zonooz

We present a context aware object detection method based on a retrieve-and-transform scene layout model. Given an input image, our approach first retrieves a coarse scene layout from a codebook of typical layout templates. In order to…

计算机视觉与模式识别 · 计算机科学 2019-12-10 Tao Wang , Xuming He , Yuanzheng Cai , Guobao Xiao

We present an end-to-end trainable deep convolutional neural network (DCNN) for semantic segmentation with built-in awareness of semantically meaningful boundaries. Semantic segmentation is a fundamental remote sensing task, and most…

计算机视觉与模式识别 · 计算机科学 2017-12-25 Dimitrios Marmanis , Konrad Schindler , Jan Dirk Wegner , Silvano Galliani , Mihai Datcu , Uwe Stilla

We propose a novel deep learning method for shadow removal. Inspired by physical models of shadow formation, we use a linear illumination transformation to model the shadow effects in the image that allows the shadow image to be expressed…

计算机视觉与模式识别 · 计算机科学 2019-08-26 Hieu Le , Dimitris Samaras

Change detection (CD) is a fundamental and important task for monitoring the land surface dynamics in the earth observation field. Existing deep learning-based CD methods typically extract bi-temporal image features using a weight-sharing…

计算机视觉与模式识别 · 计算机科学 2024-04-11 Haonan Guo , Xin Su , Chen Wu , Bo Du , Liangpei Zhang

Change detection, i.e. identification per pixel of changes for some classes of interest from a set of bi-temporal co-registered images, is a fundamental task in the field of remote sensing. It remains challenging due to unrelated forms of…

计算机视觉与模式识别 · 计算机科学 2021-09-20 Foivos I. Diakogiannis , François Waldner , Peter Caccetta

Concealed object detection (COD) in cluttered scenes is significant for various image processing applications. However, due to that concealed objects are always similar to their background, it is extremely hard to distinguish them. Here,…

计算机视觉与模式识别 · 计算机科学 2024-10-10 Yuhan Kang , Qingpeng Li , Leyuan Fang , Jian Zhao , Xuelong Li

Scene text recognition has drawn great attentions in the community of computer vision and artificial intelligence due to its challenges and wide applications. State-of-the-art recurrent neural networks (RNN) based models map an input…

计算机视觉与模式识别 · 计算机科学 2018-06-05 Yi-Chao Wu , Fei Yin , Xu-Yao Zhang , Li Liu , Cheng-Lin Liu