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We propose a lightweight and scalable Regional Point-Language Contrastive learning framework, namely \textbf{RegionPLC}, for open-world 3D scene understanding, aiming to identify and recognize open-set objects and categories. Specifically,…

Computer Vision and Pattern Recognition · Computer Science 2024-05-07 Jihan Yang , Runyu Ding , Weipeng Deng , Zhe Wang , Xiaojuan Qi

Vehicle detection and localization in complex traffic scenarios pose significant challenges due to the interference of moving objects. Traditional methods often rely on outlier exclusions or semantic segmentations, which suffer from low…

Robotics · Computer Science 2025-01-29 Yinqi Chen , Meiying Zhang , Qi Hao , Guang Zhou

Objects classification generally relies on image acquisition and analysis. Real-time classification of high-speed moving objects is challenging, as both high temporal resolution in image acquisition and low computational complexity in…

Image and Video Processing · Electrical Eng. & Systems 2020-05-20 Zibang Zhang , Xiang Li , Manhong Yao , Shujun Zheng , Guoan Zheng , Jingang Zhong

Scene coordinate regression (SCR) models have proven to be powerful implicit scene representations for 3D vision, enabling visual relocalization and structure-from-motion. SCR models are trained specifically for one scene. If training…

Computer Vision and Pattern Recognition · Computer Science 2025-10-15 Wenjing Bian , Axel Barroso-Laguna , Tommaso Cavallari , Victor Adrian Prisacariu , Eric Brachmann

Context-dependence in human cognition process is a well-established fact. Following this, we introduced the image segmentation method that can use context to classify a pixel on the basis of its membership to a particular object-class of…

Computer Vision and Pattern Recognition · Computer Science 2012-02-10 Upendra Kumar , Tapobrata Lahiri , Manoj Kumar Pal

In unsupervised adaptation for vision-language models such as CLIP, pseudo-labels derived from zero-shot predictions often exhibit significant noise, particularly under domain shifts or in visually complex scenarios. Conventional…

Machine Learning · Computer Science 2025-07-31 Eman Ali , Chetan Arora , Muhammad Haris Khan

Local binary pattern (LBP) as a kind of local feature has shown its simplicity, easy implementation and strong discriminating power in image recognition. Although some LBP variants are specifically investigated for color image recognition,…

Computer Vision and Pattern Recognition · Computer Science 2020-12-14 Bin Xiao , Tao Geng , Xiuli Bi , Weisheng Li

The entropy of the codes usually serves as the rate loss in the recent learned lossy image compression methods. Precise estimation of the probabilistic distribution of the codes plays a vital role in the performance. However, existing deep…

Image and Video Processing · Electrical Eng. & Systems 2020-05-12 Mu Li , Kai Zhang , Wangmeng Zuo , Radu Timofte , David Zhang

Indoor scene reconstruction from monocular images has long been sought after by augmented reality and robotics developers. Recent advances in neural field representations and monocular priors have led to remarkable results in scene-level…

Computer Vision and Pattern Recognition · Computer Science 2023-05-23 Wei Dong , Chris Choy , Charles Loop , Or Litany , Yuke Zhu , Anima Anandkumar

Self-supervised learning has drawn attention through its effectiveness in learning in-domain representations with no ground-truth annotations; in particular, it is shown that properly designed pretext tasks (e.g., contrastive prediction…

Computer Vision and Pattern Recognition · Computer Science 2022-01-17 Jonghwan Mun , Minchul Shin , Gunsoo Han , Sangho Lee , Seongsu Ha , Joonseok Lee , Eun-Sol Kim

Camera localization methods based on retrieval, local feature matching, and 3D structure-based pose estimation are accurate but require high storage, are slow, and are not privacy-preserving. A method based on scene landmark detection (SLD)…

Computer Vision and Pattern Recognition · Computer Science 2024-02-01 Tien Do , Sudipta N. Sinha

Generating realistic images from scene graphs asks neural networks to be able to reason about object relationships and compositionality. As a relatively new task, how to properly ensure the generated images comply with scene graphs or how…

Computer Vision and Pattern Recognition · Computer Science 2019-01-17 Subarna Tripathi , Anahita Bhiwandiwalla , Alexei Bastidas , Hanlin Tang

Existing pedestrian attribute recognition (PAR) algorithms adopt pre-trained CNN (e.g., ResNet) as their backbone network for visual feature learning, which might obtain sub-optimal results due to the insufficient employment of the…

Computer Vision and Pattern Recognition · Computer Science 2024-09-04 Xiao Wang , Jiandong Jin , Chenglong Li , Jin Tang , Cheng Zhang , Wei Wang

Before the deep learning revolution, many perception algorithms were based on runtime optimization in conjunction with a strong prior/regularization penalty. A prime example of this in computer vision is optical and scene flow. Supervised…

Computer Vision and Pattern Recognition · Computer Science 2021-11-03 Xueqian Li , Jhony Kaesemodel Pontes , Simon Lucey

We present SLIP (SAM+CLIP), an enhanced architecture for zero-shot object segmentation. SLIP combines the Segment Anything Model (SAM) \cite{kirillov2023segment} with the Contrastive Language-Image Pretraining (CLIP)…

Computer Vision and Pattern Recognition · Computer Science 2024-05-27 Saaketh Koundinya Gundavarapu , Arushi Arora , Shreya Agarwal

Although most current license plate (LP) recognition applications have been significantly advanced, they are still limited to ideal environments where training data are carefully annotated with constrained scenes. In this paper, we propose…

Computer Vision and Pattern Recognition · Computer Science 2019-10-11 Younkwan Lee , Jiwon Jun , Yoojin Hong , Moongu Jeon

Context in image is crucial for scene labeling while existing methods only exploit local context generated from a small surrounding area of an image patch or a pixel, by contrast long-range and global contextual information is ignored. To…

Computer Vision and Pattern Recognition · Computer Science 2016-08-12 Heng Fan , Xue Mei , Danil Prokhorov , Haibin Ling

Exploiting spatial-angular correlation is crucial to light field (LF) image super-resolution (SR), but is highly challenging due to its non-local property caused by the disparities among LF images. Although many deep neural networks (DNNs)…

Computer Vision and Pattern Recognition · Computer Science 2023-08-14 Zhengyu Liang , Yingqian Wang , Longguang Wang , Jungang Yang , Shilin Zhou , Yulan Guo

Semantic scene completion is the task of jointly estimating 3D geometry and semantics of objects and surfaces within a given extent. This is a particularly challenging task on real-world data that is sparse and occluded. We propose a scene…

Computer Vision and Pattern Recognition · Computer Science 2021-04-14 Christoph B. Rist , David Emmerichs , Markus Enzweiler , Dariu M. Gavrila

We present an unsupervised visual feature learning algorithm driven by context-based pixel prediction. By analogy with auto-encoders, we propose Context Encoders -- a convolutional neural network trained to generate the contents of an…

Computer Vision and Pattern Recognition · Computer Science 2016-11-22 Deepak Pathak , Philipp Krahenbuhl , Jeff Donahue , Trevor Darrell , Alexei A. Efros