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Recent camera-based 3D object detection is limited by the precision of transforming from image to 3D feature spaces, as well as the accuracy of object localization within the 3D space. This paper aims to address such a fundamental problem…

Computer Vision and Pattern Recognition · Computer Science 2024-02-08 Chaoqun Wang , Yiran Qin , Zijian Kang , Ningning Ma , Ruimao Zhang

Object detection in 3D point clouds is a crucial task in a range of computer vision applications including robotics, autonomous cars, and augmented reality. This work addresses the object detection task in 3D point clouds using a highly…

Computer Vision and Pattern Recognition · Computer Science 2023-02-14 Sultan Abu Ghazal , Jean Lahoud , Rao Anwer

Multi-modal learning, particularly among imaging and linguistic modalities, has made amazing strides in many high-level fundamental visual understanding problems, ranging from language grounding to dense event captioning. However, much of…

Computer Vision and Pattern Recognition · Computer Science 2019-10-28 Tanzila Rahman , Bicheng Xu , Leonid Sigal

Dense Video Object Captioning (DVOC) is the task of jointly detecting, tracking, and captioning object trajectories in a video, requiring the ability to understand spatio-temporal details and describe them in natural language. Due to the…

Computer Vision and Pattern Recognition · Computer Science 2025-10-31 Gabriel Fiastre , Antoine Yang , Cordelia Schmid

We present Mix3D, a data augmentation technique for segmenting large-scale 3D scenes. Since scene context helps reasoning about object semantics, current works focus on models with large capacity and receptive fields that can fully capture…

Computer Vision and Pattern Recognition · Computer Science 2021-11-30 Alexey Nekrasov , Jonas Schult , Or Litany , Bastian Leibe , Francis Engelmann

Describing what has changed in a scene can be useful to a user, but only if generated text focuses on what is semantically relevant. It is thus important to distinguish distractors (e.g. a viewpoint change) from relevant changes (e.g. an…

Computer Vision and Pattern Recognition · Computer Science 2019-04-18 Dong Huk Park , Trevor Darrell , Anna Rohrbach

Reasoning segmentation increasingly employs reinforcement learning to generate explanatory reasoning chains that guide Multimodal Large Language Models. While these geometric rewards are primarily confined to guiding the final localization,…

Computer Vision and Pattern Recognition · Computer Science 2026-03-05 Tao Yang , Qing Zhou , Yanliang Li , Qi Wang

Performing 3D dense captioning and visual grounding requires a common and shared understanding of the underlying multimodal relationships. However, despite some previous attempts on connecting these two related tasks with highly…

Computer Vision and Pattern Recognition · Computer Science 2022-12-05 Dave Zhenyu Chen , Ronghang Hu , Xinlei Chen , Matthias Nießner , Angel X. Chang

Dense video captioning aims to generate corresponding text descriptions for a series of events in the untrimmed video, which can be divided into two sub-tasks, event detection and event captioning. Unlike previous works that tackle the two…

Computer Vision and Pattern Recognition · Computer Science 2023-07-24 Qi Zhang , Yuqing Song , Qin Jin

Object detection and classification of traffic signs in street-view imagery is an essential element for asset management, map making and autonomous driving. However, some traffic signs occur rarely and consequently, they are difficult to…

Computer Vision and Pattern Recognition · Computer Science 2018-09-06 Clint Sebastian , Ries Uittenbogaard , Julien Vijverberg , Bas Boom , Peter H. N. de With

Convolutional Neural Networks achieve state-of-the-art accuracy in object detection tasks. However, they have large computational and energy requirements that challenge their deployment on resource-constrained edge devices. Object detection…

Computer Vision and Pattern Recognition · Computer Science 2021-08-17 Marina Neseem , Sherief Reda

To alleviate the cost of obtaining accurate bounding boxes for training today's state-of-the-art object detection models, recent weakly supervised detection work has proposed techniques to learn from image-level labels. However, requiring…

Computer Vision and Pattern Recognition · Computer Science 2018-11-27 Keren Ye , Mingda Zhang , Wei Li , Danfeng Qin , Adriana Kovashka , Jesse Berent

Existing dense or paragraph video captioning approaches rely on holistic representations of videos, possibly coupled with learned object/action representations, to condition hierarchical language decoders. However, they fundamentally lack…

Computer Vision and Pattern Recognition · Computer Science 2024-01-10 Shih-Han Chou , James J. Little , Leonid Sigal

Generating captions for images is a task that has recently received considerable attention. In this work we focus on caption generation for abstract scenes, or object layouts where the only information provided is a set of objects and their…

Computer Vision and Pattern Recognition · Computer Science 2017-07-25 Xuwang Yin , Vicente Ordonez

Object localization in general environments is a fundamental part of vision systems. While dominating on the COCO benchmark, recent Transformer-based detection methods are not competitive in diverse domains. Moreover, these methods still…

Computer Vision and Pattern Recognition · Computer Science 2023-07-21 Mingqiao Ye , Lei Ke , Siyuan Li , Yu-Wing Tai , Chi-Keung Tang , Martin Danelljan , Fisher Yu

Video summarization aims to automatically generate a diverse and concise summary which is useful in large-scale video processing. Most of the methods tend to adopt self-attention mechanism across video frames, which fails to model the…

Computer Vision and Pattern Recognition · Computer Science 2022-03-29 Yingchao Pan , Ouhan Huang , Qinghao Ye , Zhongjin Li , Wenjiang Wang , Guodun Li , Yuxing Chen

Our goal in this work is to train an image captioning model that generates more dense and informative captions. We introduce "relational captioning," a novel image captioning task which aims to generate multiple captions with respect to…

Computer Vision and Pattern Recognition · Computer Science 2019-09-24 Dong-Jin Kim , Jinsoo Choi , Tae-Hyun Oh , In So Kweon

Video captioning combines video understanding and language generation. Different from image captioning that describes a static image with details of almost every object, video captioning usually considers a sequence of frames and biases…

Computation and Language · Computer Science 2022-01-11 Fenglin Liu , Xuancheng Ren , Xian Wu , Bang Yang , Shen Ge , Yuexian Zou , Xu Sun

The encoder-decoder framework has become widely popular nowadays. In this model, the encoder extracts informative visual features from an input image, and the decoder employs a sequence-to-sequence formulation to generate the corresponding…

Computer Vision and Pattern Recognition · Computer Science 2026-04-28 Swadhin Das , Vivek Yadav

Text-based Visual Question Answering~(TextVQA) aims to produce correct answers for given questions about the images with multiple scene texts. In most cases, the texts naturally attach to the surface of the objects. Therefore, spatial…

Computer Vision and Pattern Recognition · Computer Science 2023-06-16 Hao Li , Jinfa Huang , Peng Jin , Guoli Song , Qi Wu , Jie Chen