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Open-vocabulary detection (OVD) aims to detect novel objects without instance-level annotations to achieve open-world object detection at a lower cost. Existing OVD methods mainly rely on the powerful open-vocabulary image-text alignment…

计算机视觉与模式识别 · 计算机科学 2024-10-10 Zishuo Wang , Wenhao Zhou , Jinglin Xu , Yuxin Peng

Open-vocabulary object detection (OVOD) enables novel category detection via vision-language alignment, but massive model sizes hinder deployment on resource-constrained devices. While quantization offers practical compression, we reveal…

计算机视觉与模式识别 · 计算机科学 2026-03-10 Jinyeong Park , Donghwa Kang , Brent ByungHoon Kang , Hyeongboo Baek , Jibum Kim

Open-Vocabulary Segmentation (OVS) aims to segment classes that are not present in the training dataset. However, most existing studies assume that the training data is fixed in advance, overlooking more practical scenarios where new…

计算机视觉与模式识别 · 计算机科学 2025-10-14 Dongjun Hwang , Yejin Kim , Minyoung Lee , Seong Joon Oh , Junsuk Choe

Zeroth-Order (ZO) optimization is pivotal for scenarios where backpropagation is unavailable, such as memory-constrained on-device learning and black-box optimization. However, existing methods face a stark trade-off: they are either…

机器学习 · 计算机科学 2026-05-29 Chen Liang , Xiatao Sun , Qian Wang , Daniel Rakita

Detecting objects based on language information is a popular task that includes Open-Vocabulary object Detection (OVD) and Referring Expression Comprehension (REC). In this paper, we advance them to a more practical setting called Described…

计算机视觉与模式识别 · 计算机科学 2025-06-09 Chi Xie , Zhao Zhang , Yixuan Wu , Feng Zhu , Rui Zhao , Shuang Liang

In open-world scenarios, Generalized Category Discovery (GCD) requires identifying both known and novel categories within unlabeled data. However, existing methods often suffer from prototype confusion caused by shortcut learning, which…

计算机视觉与模式识别 · 计算机科学 2025-12-01 Kailin Lyu , Jianwei He , Long Xiao , Jianing Zeng , Liang Fan , Lin Shu , Jie Hao

We present a new open-vocabulary detection approach based on region-centric image-language pretraining to bridge the gap between image-level pretraining and open-vocabulary object detection. At the pretraining phase, we incorporate the…

计算机视觉与模式识别 · 计算机科学 2024-07-22 Dahun Kim , Anelia Angelova , Weicheng Kuo

Spoken language change detection (LCD) refers to detecting language switching points in a multilingual speech signal. Speaker change detection (SCD) refers to locating the speaker change points in a multispeaker speech signal. The objective…

音频与语音处理 · 电气工程与系统科学 2023-10-10 Jagabandhu Mishra , S. R. Mahadeva Prasanna

Continual Generalized Category Discovery (C-GCD) faces a critical challenge: incrementally learning new classes from unlabeled data streams while preserving knowledge of old classes. Existing methods struggle with catastrophic forgetting,…

机器学习 · 计算机科学 2025-07-24 Hao Dai , Jagmohan Chauhan

Change detection encompasses a variety of task types, and the goal of building change detection (BCD) tasks is to accurately locate buildings and distinguish changed building areas. In recent years, various deep learning-based BCD methods…

图像与视频处理 · 电气工程与系统科学 2026-03-11 ChengMing Wang

The task of LiDAR-based 3D Open-Vocabulary Detection (3D OVD) requires the detector to learn to detect novel objects from point clouds without off-the-shelf training labels. Previous methods focus on the learning of object-level…

计算机视觉与模式识别 · 计算机科学 2025-03-27 Xingyu Peng , Si Liu , Chen Gao , Yan Bai , Beipeng Mu , Xiaofei Wang , Huaxia Xia

Remote sensing change detection (RSCD) aims to identify surface changes from co-registered bi-temporal images. However, many deep learning-based RSCD methods rely solely on change-map annotations and underuse the semantic information in…

计算机视觉与模式识别 · 计算机科学 2025-11-21 Ching-Heng Cheng , Chih-Chung Hsu

Open-Vocabulary Temporal Action Detection (OV-TAD) aims to classify and localize action segments in untrimmed videos for unseen categories. Previous methods rely solely on global alignment between label-level semantics and visual features,…

计算机视觉与模式识别 · 计算机科学 2026-03-26 Sa Zhu , Wanqian Zhang , Lin Wang , Xiaohua Chen , Chenxu Cui , Jinchao Zhang , Bo Li

Humans do not memorize everything. Thus, humans recognize scene changes by exploring the past images. However, available past (i.e., reference) images typically represent nearby viewpoints of the present (i.e., query) scene, rather than the…

计算机视觉与模式识别 · 计算机科学 2025-06-16 Kyusik Cho , Suhan Woo , Hongje Seong , Euntai Kim

Classifier free guidance is a standard method for conditional sampling in diffusion models, but its sampling rule is not aligned with the objective used in training. This mismatch induces a structural sampling error through the interaction…

机器学习 · 计算机科学 2026-05-27 Nakgyu Yang , Yechan Lee , SooJean Han

Semantic Change Detection (SCD) refers to the task of simultaneously extracting the changed areas and the semantic categories (before and after the changes) in Remote Sensing Images (RSIs). This is more meaningful than Binary Change…

计算机视觉与模式识别 · 计算机科学 2024-02-23 Lei Ding , Jing Zhang , Kai Zhang , Haitao Guo , Bing Liu , Lorenzo Bruzzone

Traditional object detection models are typically trained on a fixed set of classes, limiting their flexibility and making it costly to incorporate new categories. Open-vocabulary object detection addresses this limitation by enabling…

计算机视觉与模式识别 · 计算机科学 2025-10-07 Jyoti Kini , Rohit Gupta , Mubarak Shah

Reward-based fine-tuning of video diffusion models is an effective approach to improve the quality of generated videos, as it can fine-tune models without requiring real-world video datasets. However, it can sometimes be limited to specific…

计算机视觉与模式识别 · 计算机科学 2025-10-24 Takehiro Aoshima , Yusuke Shinohara , Byeongseon Park

Supervised deep learning models depend on massive labeled data. Unfortunately, it is time-consuming and labor-intensive to collect and annotate bitemporal samples containing desired changes. Transfer learning from pre-trained models is…

计算机视觉与模式识别 · 计算机科学 2022-09-13 Hao Chen , Wenyuan Li , Song Chen , Zhenwei Shi

The 3D occupancy estimation task has become an important challenge in the area of vision-based autonomous driving recently. However, most existing camera-based methods rely on costly 3D voxel labels or LiDAR scans for training, limiting…

计算机视觉与模式识别 · 计算机科学 2024-07-26 Simon Boeder , Fabian Gigengack , Benjamin Risse