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Reliable and accurate lane detection has been a long-standing problem in the field of autonomous driving. In recent years, many approaches have been developed that use images (or videos) as input and reason in image space. In this paper we…

Computer Vision and Pattern Recognition · Computer Science 2019-05-07 Min Bai , Gellert Mattyus , Namdar Homayounfar , Shenlong Wang , Shrinidhi Kowshika Lakshmikanth , Raquel Urtasun

Surface extraction from implicit neural representations modelling a single class surface is a well-known task. However, there exist no surface extraction methods from an implicit representation of multiple classes that guarantee topological…

Machine Learning · Computer Science 2026-02-19 Jash Vira , Andrew Myers , Simon Ratcliffe

The rapid advancement of generative models has led to a growing prevalence of highly realistic AI-generated images, posing significant challenges for digital forensics and content authentication. Conventional detection methods mainly rely…

Computer Vision and Pattern Recognition · Computer Science 2025-08-26 Dabbrata Das , Mahshar Yahan , Md Tareq Zaman , Md Rishadul Bayesh

Automatic segmentation of breast tumors from the ultrasound images is essential for the subsequent clinical diagnosis and treatment plan. Although the existing deep learning-based methods have achieved significant progress in automatic…

Image and Video Processing · Electrical Eng. & Systems 2023-10-24 Xing Yang , Jian Zhang , Qijian Chen , Li Wang , Lihui Wang

This paper presents an edge-based defocus blur estimation method from a single defocused image. We first distinguish edges that lie at depth discontinuities (called depth edges, for which the blur estimate is ambiguous) from edges that lie…

Computer Vision and Pattern Recognition · Computer Science 2021-11-10 Ali Karaali , Naomi Harte , Claudio Rosito Jung

Automatic extraction methods typically assume that line segments are pronounced, thin, few and far between, do not cross each other, and are noise and clutter-free. Since these assumptions often fail in realistic scenarios, many line…

Computer Vision and Pattern Recognition · Computer Science 2014-11-18 Rui F. C. Guerreiro

In arbitrary shape text detection, locating accurate text boundaries is challenging and non-trivial. Existing methods often suffer from indirect text boundary modeling or complex post-processing. In this paper, we systematically present a…

Computer Vision and Pattern Recognition · Computer Science 2023-06-21 Shi-Xue Zhang , Chun Yang , Xiaobin Zhu , Xu-Cheng Yin

As deep learning technology continues to evolve, the images yielded by generative models are becoming more and more realistic, triggering people to question the authenticity of images. Existing generated image detection methods detect…

Computer Vision and Pattern Recognition · Computer Science 2023-11-03 Xiuli Bi , Bo Liu , Fan Yang , Bin Xiao , Weisheng Li , Gao Huang , Pamela C. Cosman

High-Definition (HD) maps can provide precise geometric and semantic information of static traffic environments for autonomous driving. Road-boundary is one of the most important information contained in HD maps since it distinguishes…

Computer Vision and Pattern Recognition · Computer Science 2022-02-08 Zhenhua Xu , Yuxuan Liu , Lu Gan , Xiangcheng Hu , Yuxiang Sun , Ming Liu , Lujia Wang

Obstacle Detection is a central problem for any robotic system, and critical for autonomous systems that travel at high speeds in unpredictable environment. This is often achieved through scene depth estimation, by various means. When fast…

Robotics · Computer Science 2016-07-22 Michele Mancini , Gabriele Costante , Paolo Valigi , Thomas A. Ciarfuglia

Line segments are ubiquitous in our human-made world and are increasingly used in vision tasks. They are complementary to feature points thanks to their spatial extent and the structural information they provide. Traditional line detectors…

Computer Vision and Pattern Recognition · Computer Science 2023-03-29 Rémi Pautrat , Daniel Barath , Viktor Larsson , Martin R. Oswald , Marc Pollefeys

Distinguishing between computer-generated (CG) and natural photographic (PG) images is of great importance to verify the authenticity and originality of digital images. However, the recent cutting-edge generation methods enable high…

Computer Vision and Pattern Recognition · Computer Science 2022-09-08 Qiang Xu , Shan Jia , Xinghao Jiang , Tanfeng Sun , Zhe Wang , Hong Yan

Grading of cancer is important to know the extent of its spread. Prior to grading, segmentation of glandular structures is important. Manual segmentation is a time consuming process and is subject to observer bias. Hence, an automated…

Computer Vision and Pattern Recognition · Computer Science 2017-08-16 Rohith AP , Salman S. Khan , Kumar Anubhav , Angshuman Paul

Generic Boundary Detection (GBD) aims at locating the general boundaries that divide videos into semantically coherent and taxonomy-free units, and could serve as an important pre-processing step for long-form video understanding. Previous…

Computer Vision and Pattern Recognition · Computer Science 2022-10-06 Jing Tan , Yuhong Wang , Gangshan Wu , Limin Wang

Image colorization achieves more and more realistic results with the increasing computation power of recent deep learning techniques. It becomes more difficult to identify the fake colorized images by human eyes. In this work, we propose a…

Computer Vision and Pattern Recognition · Computer Science 2019-02-19 Weize Quan , Dong-Ming Yan , Kai Wang , Xiaopeng Zhang , Denis Pellerin

Line detection is a classic and essential problem in image processing, computer vision and machine intelligence. Line detection has many important applications, including image vectorization (e.g., document recognition and art design),…

Computer Vision and Pattern Recognition · Computer Science 2025-01-09 Liping Yang , Joshua Driscol , Ming Gong , Katie Slack , Wenbin Zhang , Shujie Wang , Catherine G. Potts

Generic event boundary detection aims to localize the generic, taxonomy-free event boundaries that segment videos into chunks. Existing methods typically require video frames to be decoded before feeding into the network, which demands…

Computer Vision and Pattern Recognition · Computer Science 2022-03-30 Congcong Li , Xinyao Wang , Longyin Wen , Dexiang Hong , Tiejian Luo , Libo Zhang

Motion estimation is one of the core challenges in computer vision. With traditional dual-frame approaches, occlusions and out-of-view motions are a limiting factor, especially in the context of environmental perception for vehicles due to…

Computer Vision and Pattern Recognition · Computer Science 2020-11-05 René Schuster , Christian Unger , Didier Stricker

Recently, generated images could reach very high quality, even human eyes could not tell them apart from real images. Although there are already some methods for detecting generated images in current forensic community, most of these…

Computer Vision and Pattern Recognition · Computer Science 2019-12-25 Xinsheng Xuan , Bo Peng , Wei Wang , Jing Dong

We propose a method to address challenges in unconstrained face detection, such as arbitrary pose variations and occlusions. First, a new image feature called Normalized Pixel Difference (NPD) is proposed. NPD feature is computed as the…

Computer Vision and Pattern Recognition · Computer Science 2015-09-08 Shengcai Liao , Anil K. Jain , Stan Z. Li