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Visual localization is the problem of estimating a camera within a scene and a key component in computer vision applications such as self-driving cars and Mixed Reality. State-of-the-art approaches for accurate visual localization use…

Computer Vision and Pattern Recognition · Computer Science 2021-03-30 Qunjie Zhou , Torsten Sattler , Marc Pollefeys , Laura Leal-Taixe

In natural language processing, most models try to learn semantic representations merely from texts. The learned representations encode the distributional semantics but fail to connect to any knowledge about the physical world. In contrast,…

Computation and Language · Computer Science 2021-11-16 Yizhen Zhang , Minkyu Choi , Kuan Han , Zhongming Liu

Visual grounding is the task of locating objects specified by natural language expressions. Existing methods extend generic object detection frameworks to tackle this task. They typically extract visual and textual features separately using…

Computer Vision and Pattern Recognition · Computer Science 2024-09-10 Ruilin Yao , Shengwu Xiong , Yichen Zhao , Yi Rong

There is extensive interest in metric learning methods for image retrieval. Many metric learning loss functions focus on learning a correct ranking of training samples, but strongly overfit semantically inconsistent labels and require a…

Machine Learning · Computer Science 2023-06-05 Christopher Liao , Theodoros Tsiligkaridis , Brian Kulis

We address the visual relocalization problem of predicting the location and camera orientation or pose (6DOF) of the given input scene. We propose a method based on how humans determine their location using the visible landmarks. We define…

Computer Vision and Pattern Recognition · Computer Science 2018-11-13 Soham Saha , Girish Varma , C. V. Jawahar

This paper presents an approach for grounding phrases in images which jointly learns multiple text-conditioned embeddings in a single end-to-end model. In order to differentiate text phrases into semantically distinct subspaces, we propose…

Computer Vision and Pattern Recognition · Computer Science 2018-07-31 Bryan A. Plummer , Paige Kordas , M. Hadi Kiapour , Shuai Zheng , Robinson Piramuthu , Svetlana Lazebnik

Open-vocabulary learning has emerged as a cutting-edge research area, particularly in light of the widespread adoption of vision-based foundational models. Its primary objective is to comprehend novel concepts that are not encompassed…

Computer Vision and Pattern Recognition · Computer Science 2023-10-24 Chunlei Wang , Wenquan Feng , Xiangtai Li , Guangliang Cheng , Shuchang Lyu , Binghao Liu , Lijiang Chen , Qi Zhao

As robots become more ubiquitous and capable, it becomes ever more important to enable untrained users to easily interact with them. Recently, this has led to study of the language grounding problem, where the goal is to extract…

Computation and Language · Computer Science 2012-07-03 Cynthia Matuszek , Nicholas FitzGerald , Luke Zettlemoyer , Liefeng Bo , Dieter Fox

Different from Object Detection, Visual Grounding deals with detecting a bounding box for each text-image pair. This one box for each text-image data provides sparse supervision signals. Although previous works achieve impressive results,…

Computer Vision and Pattern Recognition · Computer Science 2024-07-09 Weitai Kang , Gaowen Liu , Mubarak Shah , Yan Yan

Spatio-temporal video grounding aims to retrieve the spatio-temporal tube of a queried object according to the given sentence. Currently, most existing grounding methods are restricted to well-aligned segment-sentence pairs. In this paper,…

Computer Vision and Pattern Recognition · Computer Science 2020-08-25 Zhu Zhang , Zhou Zhao , Zhijie Lin , Baoxing Huai , Nicholas Jing Yuan

Nowadays, we have witnessed the early progress on learning the association between voice and face automatically, which brings a new wave of studies to the computer vision community. However, most of the prior arts along this line (a) merely…

Computer Vision and Pattern Recognition · Computer Science 2021-03-15 Peisong Wen , Qianqian Xu , Yangbangyan Jiang , Zhiyong Yang , Yuan He , Qingming Huang

Recent advances in deep learning have pushed the performances of visual saliency models way further than it has ever been. Numerous models in the literature present new ways to design neural networks, to arrange gaze pattern data, or to…

Computer Vision and Pattern Recognition · Computer Science 2019-07-05 Alexandre Bruckert , Hamed R. Tavakoli , Zhi Liu , Marc Christie , Olivier Le Meur

Textual-visual cross-modal retrieval has been a hot research topic in both computer vision and natural language processing communities. Learning appropriate representations for multi-modal data is crucial for the cross-modal retrieval…

Computer Vision and Pattern Recognition · Computer Science 2018-06-14 Jiuxiang Gu , Jianfei Cai , Shafiq Joty , Li Niu , Gang Wang

Spatio-temporal video grounding (STVG) requires localizing a target object in untrimmed videos both temporally and spatially from natural language descriptions. Despite their strong language understanding, multimodal large language models…

Computer Vision and Pattern Recognition · Computer Science 2025-11-27 Xin Gu , Haoji Zhang , Qihang Fan , Jingxuan Niu , Zhipeng Zhang , Libo Zhang , Guang Chen , Fan Chen , Longyin Wen , Sijie Zhu

Autoencoders are commonly trained using element-wise loss. However, element-wise loss disregards high-level structures in the image which can lead to embeddings that disregard them as well. A recent improvement to autoencoders that helps…

Computer Vision and Pattern Recognition · Computer Science 2020-04-06 Gustav Grund Pihlgren , Fredrik Sandin , Marcus Liwicki

The combination of visual and textual representations has produced excellent results in tasks such as image captioning and visual question answering, but the inference capabilities of multimodal representations are largely untested. In the…

Computation and Language · Computer Science 2020-04-07 Oier Lopez de Lacalle , Ander Salaberria , Aitor Soroa , Gorka Azkune , Eneko Agirre

In this paper, we present a simple baseline for visual grounding for autonomous driving which outperforms the state of the art methods, while retaining minimal design choices. Our framework minimizes the cross-entropy loss over the cosine…

Computer Vision and Pattern Recognition · Computer Science 2020-09-15 Nivedita Rufus , Unni Krishnan R Nair , K. Madhava Krishna , Vineet Gandhi

We propose a novel probabilistic model for visual question answering (Visual QA). The key idea is to infer two sets of embeddings: one for the image and the question jointly and the other for the answers. The learning objective is to learn…

Computer Vision and Pattern Recognition · Computer Science 2018-06-12 Hexiang Hu , Wei-Lun Chao , Fei Sha

Image-text matching is a key multimodal task that aims to model the semantic association between images and text as a matching relationship. With the advent of the multimedia information age, image, and text data show explosive growth, and…

Machine Learning · Computer Science 2024-06-24 Jinyin Wang , Haijing Zhang , Yihao Zhong , Yingbin Liang , Rongwei Ji , Yiru Cang

Temporal grounding aims to locate a target video moment that semantically corresponds to the given sentence query in an untrimmed video. However, recent works find that existing methods suffer a severe temporal bias problem. These methods…

Computer Vision and Pattern Recognition · Computer Science 2022-08-08 Jiachang Hao , Haifeng Sun , Pengfei Ren , Jingyu Wang , Qi Qi , Jianxin Liao