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Effective waste sorting is critical for sustainable recycling, yet AI research in this domain continues to lag behind commercial systems due to limited datasets and reliance on legacy object detectors. In this work, we advance AI-driven…

Computer Vision and Pattern Recognition · Computer Science 2025-09-09 Hassan Abid , Khan Muhammad , Muhammad Haris Khan

An object detector's ability to detect and flag \textit{novel} objects during open-world deployments is critical for many real-world applications. Unfortunately, much of the work in open object detection today is disjointed and fails to…

Computer Vision and Pattern Recognition · Computer Science 2024-04-18 Matthew Inkawhich , Nathan Inkawhich , Hao Yang , Jingyang Zhang , Randolph Linderman , Yiran Chen

Zero-shot out-of-vocabulary detection (ZS-OOVD) aims to accurately recognize objects of in-vocabulary (IV) categories provided at zero-shot inference, while simultaneously rejecting undefined ones (out-of-vocabulary, OOV) that lack…

Computer Vision and Pattern Recognition · Computer Science 2026-02-02 Binyi Su , Chenghao Huang , Haiyong Chen

Audio-Visual Source Localization (AVSL) is the task of identifying specific sounding objects in the scene given audio cues. In our work, we focus on semi-supervised AVSL with pseudo-labeling. To address the issues with vanilla hard…

Computer Vision and Pattern Recognition · Computer Science 2024-03-06 Yuxin Guo , Shijie Ma , Yuhao Zhao , Hu Su , Wei Zou

This paper focuses on Semi-Supervised Object Detection (SSOD). Knowledge Distillation (KD) has been widely used for semi-supervised image classification. However, adapting these methods for SSOD has the following obstacles. (1) The teacher…

Computer Vision and Pattern Recognition · Computer Science 2020-09-03 Cong Chen , Shouyang Dong , Ye Tian , Kunlin Cao , Li Liu , Yuanhao Guo

Open-Vocabulary Object Detection (OVOD) aims to generalize object recognition to novel categories, while Weakly Supervised OVOD (WS-OVOD) extends this by combining box-level annotations with image-level labels. Despite recent progress, two…

Computer Vision and Pattern Recognition · Computer Science 2025-11-25 Jiaying Zhou , Qingchao Chen

Open-vocabulary (OV) 3D object detection is an emerging field, yet its exploration through image-based methods remains limited compared to 3D point cloud-based methods. We introduce OpenM3D, a novel open-vocabulary multi-view indoor 3D…

Computer Vision and Pattern Recognition · Computer Science 2025-08-28 Peng-Hao Hsu , Ke Zhang , Fu-En Wang , Tao Tu , Ming-Feng Li , Yu-Lun Liu , Albert Y. C. Chen , Min Sun , Cheng-Hao Kuo

The semi-supervised semantic segmentation (S4) can learn rich visual knowledge from low-cost unlabeled images. However, traditional S4 architectures all face the challenge of low-quality pseudo-labels, especially for the teacher-student…

Computer Vision and Pattern Recognition · Computer Science 2026-02-03 Shanwen Wang , Xin Sun , Danfeng Hong , Fei Zhou

Semi-supervised object detection (SSOD), leveraging unlabeled data to boost object detectors, has become a hot topic recently. However, existing SSOD approaches mainly focus on horizontal objects, leaving oriented objects common in aerial…

Computer Vision and Pattern Recognition · Computer Science 2025-09-26 Dingkang Liang , Wei Hua , Chunsheng Shi , Zhikang Zou , Xiaoqing Ye , Xiang Bai

The goal of this paper is to learn strong lip reading models that can recognise speech in silent videos. Most prior works deal with the open-set visual speech recognition problem by adapting existing automatic speech recognition techniques…

Computer Vision and Pattern Recognition · Computer Science 2021-12-06 K R Prajwal , Triantafyllos Afouras , Andrew Zisserman

The vocabulary size in temporal action localization (TAL) is limited by the scarcity of large-scale annotated datasets. To overcome this, recent works integrate vision-language models (VLMs), such as CLIP, for open-vocabulary TAL (OV-TAL).…

Computer Vision and Pattern Recognition · Computer Science 2024-12-20 Jeongseok Hyun , Su Ho Han , Hyolim Kang , Joon-Young Lee , Seon Joo Kim

Accurate 3D object detection is crucial for autonomous vehicles and robots to navigate and interact with the environment safely and effectively. Meanwhile, the performance of 3D detector relies on the data size and annotation which is…

Computer Vision and Pattern Recognition · Computer Science 2024-09-24 Minju Kang , Taehun Kong , Tae-Kyun Kim

Semi-Supervised Object Detection (SSOD) has achieved resounding success by leveraging unlabeled data to improve detection performance. However, in Open Scene Semi-Supervised Object Detection (O-SSOD), unlabeled data may contains unknown…

Computer Vision and Pattern Recognition · Computer Science 2024-01-04 Jingyu Zhuang , Kuo Wang , Liang Lin , Guanbin Li

Semi- and weakly-supervised learning have recently attracted considerable attention in the object detection literature since they can alleviate the cost of annotation needed to successfully train deep learning models. State-of-art…

Computer Vision and Pattern Recognition · Computer Science 2022-06-20 Akhil Meethal , Marco Pedersoli , Zhongwen Zhu , Francisco Perdigon Romero , Eric Granger

A visually rich document (VRD) utilizes visual features along with linguistic cues to disseminate information. Training a custom extractor that identifies named entities from a document requires a large number of instances of the target…

Computation and Language · Computer Science 2024-04-02 Ritesh Sarkhel , Xiaoqi Ren , Lauro Beltrao Costa , Guolong Su , Vincent Perot , Yanan Xie , Emmanouil Koukoumidis , Arnab Nandi

Open-vocabulary object detection (OVOD) aims to detect both seen and unseen categories, yet existing methods often struggle to generalize to novel objects due to limited integration of global and local contextual cues. We propose…

Computer Vision and Pattern Recognition · Computer Science 2026-05-12 Soichiro Okazaki , Tatsuya Sasaki , Hiroki Ohashi

Out-of-distribution (OOD) detection is crucial for deploying reliable machine learning models in open-world applications. Recent advances in CLIP-based OOD detection have shown promising results via regularizing prompt tuning with OOD…

Computer Vision and Pattern Recognition · Computer Science 2024-11-07 Geng Yu , Jianing Zhu , Jiangchao Yao , Bo Han

Pretraining on large labeled datasets is a prerequisite to achieve good performance in many computer vision tasks like 2D object recognition, video classification etc. However, pretraining is not widely used for 3D recognition tasks where…

Computer Vision and Pattern Recognition · Computer Science 2021-01-08 Zaiwei Zhang , Rohit Girdhar , Armand Joulin , Ishan Misra

Vision-language models such as CLIP have boosted the performance of open-vocabulary object detection, where the detector is trained on base categories but required to detect novel categories. Existing methods leverage CLIP's strong…

Computer Vision and Pattern Recognition · Computer Science 2023-09-06 Cheng Shi , Sibei Yang

Recent success of pre-trained foundation vision-language models makes Open-Vocabulary Segmentation (OVS) possible. Despite the promising performance, this approach introduces heavy computational overheads for two challenges: 1) large model…

Computer Vision and Pattern Recognition · Computer Science 2024-09-18 Jingxuan Xu , Wuyang Chen , Yao Zhao , Yunchao Wei