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3D object reconstruction is important for semantic scene understanding. It is challenging to reconstruct detailed 3D shapes from monocular images directly due to a lack of depth information, occlusion and noise. Most current methods…

Computer Vision and Pattern Recognition · Computer Science 2023-11-07 Ziwei Liao , Steven L. Waslander

Active learning is a paradigm of machine learning which aims at reducing the amount of labeled data needed to train a classifier. Its overall principle is to sequentially select the most informative data points, which amounts to determining…

Statistics Theory · Mathematics 2022-09-01 Christophe Denis , Mohamed Hebiri , Boris Ndjia Njike , Xavier Siebert

The proliferation of Deep Neural Networks has resulted in machine learning systems becoming increasingly more present in various real-world applications. Consequently, there is a growing demand for highly reliable models in many domains,…

Computer Vision and Pattern Recognition · Computer Science 2024-03-19 Pedro Conde , Rui L. Lopes , Cristiano Premebida

We add one more invariance - the state invariance - to the more commonly used other invariances for learning object representations for recognition and retrieval. By state invariance, we mean robust with respect to changes in the structural…

Computer Vision and Pattern Recognition · Computer Science 2025-02-28 Rohan Sarkar , Avinash Kak

Obtaining annotations for complex computer vision tasks such as object detection is an expensive and time-intense endeavor involving a large number of human workers or expert opinions. Reducing the amount of annotations required while…

Computer Vision and Pattern Recognition · Computer Science 2023-10-03 Marius Schubert , Tobias Riedlinger , Karsten Kahl , Matthias Rottmann

The pretraining-finetuning paradigm has gained widespread adoption in vision tasks and other fields, yet it faces the significant challenge of high sample annotation costs. To mitigate this, the concept of active finetuning has emerged,…

Computer Vision and Pattern Recognition · Computer Science 2024-03-18 Han Lu , Yichen Xie , Xiaokang Yang , Junchi Yan

Uncertainty estimation is important for interpreting the trustworthiness of machine learning models in many applications. This is especially critical in the data-driven active learning setting where the goal is to achieve a certain accuracy…

Computer Vision and Pattern Recognition · Computer Science 2020-07-14 Bo Li , Tommy Sonne Alstrøm

We propose an active learning approach to image segmentation that exploits geometric priors to speed up and streamline the annotation process. It can be applied for both background-foreground and multi-class segmentation tasks in 2D images…

Computer Vision and Pattern Recognition · Computer Science 2019-04-05 Ksenia Konyushkova , Raphael Sznitman , Pascal Fua

We consider the problem of object recognition in 3D using an ensemble of attribute-based classifiers. We propose two new concepts to improve classification in practical situations, and show their implementation in an approach implemented…

Computer Vision and Pattern Recognition · Computer Science 2016-10-25 Wentao Luan , Yezhou Yang , Cornelia Fermuller , John Baras

Recently, several studies have investigated active learning (AL) for natural language processing tasks to alleviate data dependency. However, for query selection, most of these studies mainly rely on uncertainty-based sampling, which…

Computation and Language · Computer Science 2020-11-30 Yekyung Kim

Both indoor and outdoor scene perceptions are essential for embodied intelligence. However, current sparse supervised 3D object detection methods focus solely on outdoor scenes without considering indoor settings. To this end, we propose a…

Computer Vision and Pattern Recognition · Computer Science 2025-06-16 Yun Zhu , Le Hui , Hang Yang , Jianjun Qian , Jin Xie , Jian Yang

Autonomous driving needs to rely on high-quality 3D object detection to ensure safe navigation in the world. Uncertainty estimation is an effective tool to provide statistically accurate predictions, while the associated detection…

Computer Vision and Pattern Recognition · Computer Science 2024-06-19 Illia Oleksiienko , Alexandros Iosifidis

We tackle the challenging problem of Open-Set Object Detection (OSOD), which aims to detect both known and unknown objects in unlabelled images. The main difficulty arises from the absence of supervision for these unknown classes, making it…

Computer Vision and Pattern Recognition · Computer Science 2024-12-13 Silin Cheng , Yuanpei Liu , Kai Han

Recently, Neural Radiance Fields (NeRF) has shown promising performances on reconstructing 3D scenes and synthesizing novel views from a sparse set of 2D images. Albeit effective, the performance of NeRF is highly influenced by the quality…

Computer Vision and Pattern Recognition · Computer Science 2022-09-20 Xuran Pan , Zihang Lai , Shiji Song , Gao Huang

Supervised machine learning based state-of-the-art computer vision techniques are in general data hungry. Their data curation poses the challenges of expensive human labeling, inadequate computing resources and larger experiment turn around…

Computer Vision and Pattern Recognition · Computer Science 2019-01-07 Vishal Kaushal , Rishabh Iyer , Suraj Kothawade , Rohan Mahadev , Khoshrav Doctor , Ganesh Ramakrishnan

Automated driving object detection has always been a challenging task in computer vision due to environmental uncertainties. These uncertainties include significant differences in object sizes and encountering the class unseen. It may…

Computer Vision and Pattern Recognition · Computer Science 2023-11-28 Zezhou Wang , Guitao Cao , Xidong Xi , Jiangtao Wang

We present the first evidence that adaptive learning techniques can boost the discovery of unusual objects within astronomical light curve data sets. Our method follows an active learning strategy where the learning algorithm chooses…

Infants learn actively in their environments, shaping their own learning curricula. They learn about their environments' affordances, that is, how local circumstances determine how their behavior can affect the environment. Here we model…

Artificial Intelligence · Computer Science 2024-05-14 Fedor Scholz , Erik Ayari , Johannes Bertram , Martin V. Butz

Classroom activity detection (CAD) focuses on accurately classifying whether the teacher or student is speaking and recording both the length of individual utterances during a class. A CAD solution helps teachers get instant feedback on…

Audio and Speech Processing · Electrical Eng. & Systems 2020-02-12 Hang Li , Yu Kang , Wenbiao Ding , Song Yang , Songfan Yang , Gale Yan Huang , Zitao Liu

It is now well established from a variety of studies that there is a significant benefit from combining video and audio data in detecting active speakers. However, either of the modalities can potentially mislead audiovisual fusion by…