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Camouflaged object detection (COD) aims to identify the objects that conceal themselves in natural scenes. Accurate COD suffers from a number of challenges associated with low boundary contrast and the large variation of object appearances,…

计算机视觉与模式识别 · 计算机科学 2022-07-28 Geng Chen , Si-Jie Liu , Yu-Jia Sun , Ge-Peng Ji , Ya-Feng Wu , Tao Zhou

Detecting small scene text instances in the wild is particularly challenging, where the influence of irregular positions and nonideal lighting often leads to detection errors. We present MixNet, a hybrid architecture that combines the…

计算机视觉与模式识别 · 计算机科学 2023-08-30 Yu-Xiang Zeng , Jun-Wei Hsieh , Xin Li , Ming-Ching Chang

Deep neural object detection or segmentation networks are commonly trained with pristine, uncompressed data. However, in practical applications the input images are usually deteriorated by compression that is applied to efficiently transmit…

图像与视频处理 · 电气工程与系统科学 2022-05-16 Kristian Fischer , Christian Blum , Christian Herglotz , André Kaup

Shadows in videos are difficult to detect because of the large shadow deformation between frames. In this work, we argue that accounting for shadow deformation is essential when designing a video shadow detection method. To this end, we…

计算机视觉与模式识别 · 计算机科学 2023-03-28 Lihao Liu , Jean Prost , Lei Zhu , Nicolas Papadakis , Pietro Liò , Carola-Bibiane Schönlieb , Angelica I Aviles-Rivero

Shadows can originate from occlusions in both direct and indirect illumination. Although most current shadow removal research focuses on shadows caused by direct illumination, shadows from indirect illumination are often just as pervasive,…

计算机视觉与模式识别 · 计算机科学 2025-02-12 Jiamin Xu , Zelong Li , Yuxin Zheng , Chenyu Huang , Renshu Gu , Weiwei Xu , Gang Xu

Instance shadow detection is the task of detecting pairs of shadows and objects, where existing methods first detect shadows and objects independently, then associate them. This paper introduces FastInstShadow, a method that enhances…

计算机视觉与模式识别 · 计算机科学 2025-03-11 Takeru Inoue , Ryusuke Miyamoto

Recent methods for boundary or edge detection built on Deep Convolutional Neural Networks (CNNs) typically suffer from the issue of predicted edges being thick and need post-processing to obtain crisp boundaries. Highly imbalanced…

计算机视觉与模式识别 · 计算机科学 2018-07-27 Ruoxi Deng , Chunhua Shen , Shengjun Liu , Huibing Wang , Xinru Liu

Infrared small target detection (ISTD) is challenging due to complex backgrounds, low signal-to-clutter ratios, and varying target sizes and shapes. Effective detection relies on capturing local contextual information at the appropriate…

计算机视觉与模式识别 · 计算机科学 2024-12-24 Guoyi Zhang , Guangsheng Xu , Han Wang , Siyang Chen , Yunxiao Shan , Xiaohu Zhang

In this paper, we present a novel approach for contour detection with Convolutional Neural Networks. A multi-scale CNN learning framework is designed to automatically learn the most relevant features for contour patch detection. Our method…

计算机视觉与模式识别 · 计算机科学 2017-05-10 Teck Wee Chua , Li Shen

Scene change detection is an image processing problem related to partitioning pixels of a digital image into foreground and background regions. Mostly, visual knowledge-based computer intelligent systems, like traffic monitoring, video…

计算机视觉与模式识别 · 计算机科学 2022-12-21 Daniel F. S. Santos , Rafael G. Pires , Danilo Colombo , João P. Papa

As a long-standing problem in computer vision, face detection has attracted much attention in recent decades for its practical applications. With the availability of face detection benchmark WIDER FACE dataset, much of the progresses have…

计算机视觉与模式识别 · 计算机科学 2019-01-31 Shifeng Zhang , Rui Zhu , Xiaobo Wang , Hailin Shi , Tianyu Fu , Shuo Wang , Tao Mei , Stan Z. Li

Cascade is a widely used approach that rejects obvious negative samples at early stages for learning better classifier and faster inference. This paper presents chained cascade network (CC-Net). In this CC-Net, the cascaded classifier at a…

计算机视觉与模式识别 · 计算机科学 2017-02-24 Wanli Ouyang , Ku Wang , Xin Zhu , Xiaogang Wang

The challenging field of scene text detection requires complex data annotation, which is time-consuming and expensive. Techniques, such as weak supervision, can reduce the amount of data needed. In this paper we propose a weak supervision…

计算机视觉与模式识别 · 计算机科学 2022-01-14 Emanuel Metzenthin , Christian Bartz , Christoph Meinel

Object detection in challenging situations such as scale variation, occlusion, and truncation depends not only on feature details but also on contextual information. Most previous networks emphasize too much on detailed feature extraction…

计算机视觉与模式识别 · 计算机科学 2018-09-07 Wenchi Ma , Yuanwei Wu , Zongbo Wang , Guanghui Wang

Object detection in camera images, using deep learning has been proven successfully in recent years. Rising detection rates and computationally efficient network structures are pushing this technique towards application in production…

计算机视觉与模式识别 · 计算机科学 2020-05-18 Felix Nobis , Maximilian Geisslinger , Markus Weber , Johannes Betz , Markus Lienkamp

Low-light image enhancement is challenging in that it needs to consider not only brightness recovery but also complex issues like color distortion and noise, which usually hide in the dark. Simply adjusting the brightness of a low-light…

图像与视频处理 · 电气工程与系统科学 2020-03-17 Feifan Lv , Yu Li , Feng Lu

Aiming at improving the performance of existing detection algorithms developed for different applications, we propose a region regression-based multi-stage class-agnostic detection pipeline, whereby the existing algorithms are employed for…

计算机视觉与模式识别 · 计算机科学 2016-07-19 Wei Li , Matthias Breier , Dorit Merhof

Learning discriminative feature directly on point clouds is still challenging in the understanding of 3D shapes. Recent methods usually partition point clouds into local region sets, and then extract the local region features with…

计算机视觉与模式识别 · 计算机科学 2020-03-24 Xinhai Liu , Zhizhong Han , Fangzhou Hong , Yu-Shen Liu , Matthias Zwicker

Point cloud based place recognition is still an open issue due to the difficulty in extracting local features from the raw 3D point cloud and generating the global descriptor, and it's even harder in the large-scale dynamic environments. In…

计算机视觉与模式识别 · 计算机科学 2019-08-20 Zhe Liu , Shunbo Zhou , Chuanzhe Suo , Yingtian Liu , Peng Yin , Hesheng Wang , Yun-Hui Liu

Few-Shot Object Detection (FSOD) is a rapidly growing field in computer vision. It consists in finding all occurrences of a given set of classes with only a few annotated examples for each class. Numerous methods have been proposed to…

计算机视觉与模式识别 · 计算机科学 2022-01-07 Pierre Le Jeune , Anissa Mokraoui