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Recognising in what type of environment one is located is an important perception task. For instance, for a robot operating in indoors it is helpful to be aware whether it is in a kitchen, a hallway or a bedroom. Existing approaches attempt…

Computer Vision and Pattern Recognition · Computer Science 2020-07-06 Shengyu Huang , Mikhail Usvyatsov , Konrad Schindler

We present a new learning-based method for multi-frame depth estimation from a color video, which is a fundamental problem in scene understanding, robot navigation or handheld 3D reconstruction. While recent learning-based methods estimate…

Computer Vision and Pattern Recognition · Computer Science 2021-07-13 Xiaoxiao Long , Lingjie Liu , Christian Theobalt , Wenping Wang

Most deep learning object detectors are based on the anchor mechanism and resort to the Intersection over Union (IoU) between predefined anchor boxes and ground truth boxes to evaluate the matching quality between anchors and objects. In…

Computer Vision and Pattern Recognition · Computer Science 2020-09-30 Heng Zhang , Elisa Fromont , Sébastien Lefevre , Bruno Avignon

Deep learning models have demonstrated exceptional performance in a variety of real-world applications. These successes are often attributed to strong base models that can generalize to novel tasks with limited supporting data while keeping…

Machine Learning · Computer Science 2024-12-19 Chenqi Li , Boyan Gao , Gabriel Jones , Timothy Denison , Tingting Zhu

Modern CNN-based object detectors assign anchors for ground-truth objects under the restriction of object-anchor Intersection-over-Unit (IoU). In this study, we propose a learning-to-match approach to break IoU restriction, allowing objects…

Computer Vision and Pattern Recognition · Computer Science 2019-11-13 Xiaosong Zhang , Fang Wan , Chang Liu , Rongrong Ji , Qixiang Ye

Humans can discern scene-independent features of objects across various environments, allowing them to swiftly identify objects amidst changing factors such as lighting, perspective, size, and position and imagine the complete images of the…

Computer Vision and Pattern Recognition · Computer Science 2024-11-05 Tonglin Chen , Yinxuan Huang , Zhimeng Shen , Jinghao Huang , Bin Li , Xiangyang Xue

We present a new framework to reconstruct holistic 3D indoor scenes including both room background and indoor objects from single-view images. Existing methods can only produce 3D shapes of indoor objects with limited geometry quality…

Computer Vision and Pattern Recognition · Computer Science 2022-08-09 Haolin Liu , Yujian Zheng , Guanying Chen , Shuguang Cui , Xiaoguang Han

The inference of topological principles is a key problem in structured reconstruction. We observe that wrongly predicted topological relationships are often incurred by the lack of holistic geometry clues in low-level features. Inspired by…

Computer Vision and Pattern Recognition · Computer Science 2023-09-19 Ziqiong Lu , Linxi Huan , Qiyuan Ma , Xianwei Zheng

Anomaly Detection involves identifying deviations from normal data distributions and is critical in fields such as medical diagnostics and industrial defect detection. Traditional AD methods typically require the availability of normal…

Computer Vision and Pattern Recognition · Computer Science 2025-08-12 Alireza Salehi , Mohammadreza Salehi , Reshad Hosseini , Cees G. M. Snoek , Makoto Yamada , Mohammad Sabokrou

Learning structures of 3D shapes is a fundamental problem in the field of computer graphics and geometry processing. We present a simple yet interpretable unsupervised method for learning a new structural representation in the form of 3D…

Computer Vision and Pattern Recognition · Computer Science 2020-03-27 Nenglun Chen , Lingjie Liu , Zhiming Cui , Runnan Chen , Duygu Ceylan , Changhe Tu , Wenping Wang

This paper presents a method for learning And-Or models to represent context and occlusion for car detection and viewpoint estimation. The learned And-Or model represents car-to-car context and occlusion configurations at three levels: (i)…

Computer Vision and Pattern Recognition · Computer Science 2015-09-29 Tianfu Wu , Bo Li , Song-Chun Zhu

Object detection has been one of the most active topics in computer vision for the past years. Recent works have mainly focused on pushing the state-of-the-art in the general-purpose COCO benchmark. However, the use of such detection…

Computer Vision and Pattern Recognition · Computer Science 2021-04-09 Manuel Carranza-García , Pedro Lara-Benítez , Jorge García-Gutiérrez , José C. Riquelme

In this paper, we aim to improve the performance of a deep learning model towards image classification tasks, proposing a novel anchor-based training methodology, named \textit{Online Anchor-based Training} (OAT). The OAT method, guided by…

Computer Vision and Pattern Recognition · Computer Science 2024-06-19 Maria Tzelepi , Vasileios Mezaris

Object detection is essential to safe autonomous or assisted driving. Previous works usually utilize RGB images or LiDAR point clouds to identify and localize multiple objects in self-driving. However, cameras tend to fail in bad driving…

Computer Vision and Pattern Recognition · Computer Science 2021-07-06 Zangwei Zheng , Xiangyu Yue , Kurt Keutzer , Alberto Sangiovanni Vincentelli

To endow machines with the ability to perceive the real-world in a three dimensional representation as we do as humans is a fundamental and long-standing topic in Artificial Intelligence. Given different types of visual inputs such as…

Computer Vision and Pattern Recognition · Computer Science 2020-10-20 Bo Yang

In this study, we address the challenge of 3D scene structure recovery from monocular depth estimation. While traditional depth estimation methods leverage labeled datasets to directly predict absolute depth, recent advancements advocate…

Computer Vision and Pattern Recognition · Computer Science 2023-09-19 Chi Zhang , Wei Yin , Gang Yu , Zhibin Wang , Tao Chen , Bin Fu , Joey Tianyi Zhou , Chunhua Shen

We propose a novel and flexible anchor mechanism named MetaAnchor for object detection frameworks. Unlike many previous detectors model anchors via a predefined manner, in MetaAnchor anchor functions could be dynamically generated from the…

Computer Vision and Pattern Recognition · Computer Science 2018-11-07 Tong Yang , Xiangyu Zhang , Zeming Li , Wenqiang Zhang , Jian Sun

Devising intelligent agents able to live in an environment and learn by observing the surroundings is a longstanding goal of Artificial Intelligence. From a bare Machine Learning perspective, challenges arise when the agent is prevented…

Computer Vision and Pattern Recognition · Computer Science 2022-04-27 Matteo Tiezzi , Simone Marullo , Lapo Faggi , Enrico Meloni , Alessandro Betti , Stefano Melacci

We present VoxScene, a novel anchor-conditioned voxel diffusion framework tailored for 3D scene synthesis. Current data-driven layout generation techniques typically rely on bounding proxies or implicit representations, which overlook…

In object detection, determining which anchors to assign as positive or negative samples, known as anchor assignment, has been revealed as a core procedure that can significantly affect a model's performance. In this paper we propose a…

Computer Vision and Pattern Recognition · Computer Science 2020-09-08 Kang Kim , Hee Seok Lee