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High-definition (HD) semantic maps are crucial in enabling autonomous vehicles to navigate urban environments. The traditional method of creating offline HD maps involves labor-intensive manual annotation processes, which are not only…

Computer Vision and Pattern Recognition · Computer Science 2023-06-16 Xuan Xiong , Yicheng Liu , Tianyuan Yuan , Yue Wang , Yilun Wang , Hang Zhao

Graph matching aims to establish correspondences between vertices of graphs such that both the node and edge attributes agree. Various learning-based methods were recently proposed for finding correspondences between image key points based…

Computer Vision and Pattern Recognition · Computer Science 2022-05-10 Zhenzhang Ye , Tarun Yenamandra , Florian Bernard , Daniel Cremers

We present a model that generates natural language descriptions of images and their regions. Our approach leverages datasets of images and their sentence descriptions to learn about the inter-modal correspondences between language and…

Computer Vision and Pattern Recognition · Computer Science 2015-04-15 Andrej Karpathy , Li Fei-Fei

Semantic labelling is highly correlated with geometry and radiance reconstruction, as scene entities with similar shape and appearance are more likely to come from similar classes. Recent implicit neural reconstruction techniques are…

Computer Vision and Pattern Recognition · Computer Science 2021-08-24 Shuaifeng Zhi , Tristan Laidlow , Stefan Leutenegger , Andrew J. Davison

Existing neural field representations for 3D object reconstruction either (1) utilize object-level representations, but suffer from low-quality details due to conditioning on a global latent code, or (2) are able to perfectly reconstruct…

Computer Vision and Pattern Recognition · Computer Science 2024-07-16 Christopher Wewer , Eddy Ilg , Bernt Schiele , Jan Eric Lenssen

The relevance between a query and a document in search can be represented as matching degree between the two objects. Latent space models have been proven to be effective for the task, which are often trained with click-through data. One…

Information Retrieval · Computer Science 2016-04-22 Shuxin Wang , Xin Jiang , Hang Li , Jun Xu , Bin Wang

Existing 3D surface representation approaches are unable to accurately classify pixels and their orientation lying on the boundary of an object. Thus resulting in coarse representations which usually require post-processing steps to extract…

Computer Vision and Pattern Recognition · Computer Science 2019-01-23 Mateusz Michalkiewicz , Jhony K. Pontes , Dominic Jack , Mahsa Baktashmotlagh , Anders Eriksson

When approaching the semantic segmentation of overhead imagery in the decimeter spatial resolution range, successful strategies usually combine powerful methods to learn the visual appearance of the semantic classes (e.g. convolutional…

Computer Vision and Pattern Recognition · Computer Science 2018-08-24 Michele Volpi , Devis Tuia

Recent work has shown great progress in integrating spatial conditioning to control large, pre-trained text-to-image diffusion models. Despite these advances, existing methods describe the spatial image content using hand-crafted…

Computer Vision and Pattern Recognition · Computer Science 2024-07-03 Jiayi Wang , Kevin Alexander Laube , Yumeng Li , Jan Hendrik Metzen , Shin-I Cheng , Julio Borges , Anna Khoreva

For best performance, today's semantic segmentation methods use large and carefully labeled datasets, requiring expensive annotation budgets. In this work, we show that coarse annotation is a low-cost but highly effective alternative for…

Computer Vision and Pattern Recognition · Computer Science 2022-12-16 Anurag Das , Yongqin Xian , Yang He , Zeynep Akata , Bernt Schiele

In this work, we develop a framework for shape analysis using inconsistent surface mapping. Traditional landmark-based geometric morphometrics methods suffer from the limited degrees of freedom, while most of the more advanced non-rigid…

Computational Geometry · Computer Science 2020-10-30 Gary P. T. Choi , Di Qiu , Lok Ming Lui

We show that it is possible to learn semantic segmentation from very limited amounts of manual annotations, by enforcing geometric 3D constraints between multiple views. More exactly, image locations corresponding to the same physical 3D…

Computer Vision and Pattern Recognition · Computer Science 2019-01-10 Sinisa Stekovic , Friedrich Fraundorfer , Vincent Lepetit

Visual semantic correspondence is an important topic in computer vision and could help machine understand objects in our daily life. However, most previous methods directly train on correspondences in 2D images, which is end-to-end but…

Computer Vision and Pattern Recognition · Computer Science 2021-04-14 Yang You , Chengkun Li , Yujing Lou , Zhoujun Cheng , Lizhuang Ma , Cewu Lu , Weiming Wang

Deep neural representations of 3D shapes as implicit functions have been shown to produce high fidelity models surpassing the resolution-memory trade-off faced by the explicit representations using meshes and point clouds. However, most…

Computer Vision and Pattern Recognition · Computer Science 2021-06-16 Rahul Venkatesh , Tejan Karmali , Sarthak Sharma , Aurobrata Ghosh , R. Venkatesh Babu , László A. Jeni , Maneesh Singh

Semantic shape completion is a challenging problem in 3D computer vision where the task is to generate a complete 3D shape using a partial 3D shape as input. We propose a learning-based approach to complete incomplete 3D shapes through…

Computer Vision and Pattern Recognition · Computer Science 2018-10-02 Swaminathan Gurumurthy , Shubham Agrawal

A comprehensive semantic understanding of a scene is important for many applications - but in what space should diverse semantic information (e.g., objects, scene categories, material types, texture, etc.) be grounded and what should be its…

Computer Vision and Pattern Recognition · Computer Science 2019-10-08 Iro Armeni , Zhi-Yang He , JunYoung Gwak , Amir R. Zamir , Martin Fischer , Jitendra Malik , Silvio Savarese

Zero-shot recognition aims to accurately recognize objects of unseen classes by using a shared visual-semantic mapping between the image feature space and the semantic embedding space. This mapping is learned on training data of seen…

Computer Vision and Pattern Recognition · Computer Science 2017-03-21 Yanan Li , Donghui Wang , Huanhang Hu , Yuetan Lin , Yueting Zhuang

Several recent publications have proposed methods for mapping images into continuous semantic embedding spaces. In some cases the embedding space is trained jointly with the image transformation. In other cases the semantic embedding space…

Machine Learning · Computer Science 2017-02-28 Mohammad Norouzi , Tomas Mikolov , Samy Bengio , Yoram Singer , Jonathon Shlens , Andrea Frome , Greg S. Corrado , Jeffrey Dean

Despite the recent success of deep-learning based semantic segmentation, deploying a pre-trained road scene segmenter to a city whose images are not presented in the training set would not achieve satisfactory performance due to dataset…

Computer Vision and Pattern Recognition · Computer Science 2017-04-28 Yi-Hsin Chen , Wei-Yu Chen , Yu-Ting Chen , Bo-Cheng Tsai , Yu-Chiang Frank Wang , Min Sun

Effective scene representation is critical for the visual grounding ability of representations, yet existing methods for 3D Visual Grounding are often constrained. They either only focus on geometric and visual cues, or, like traditional 3D…

Computer Vision and Pattern Recognition · Computer Science 2025-10-15 Qinghongbing Xie , Zijian Liang , Fuhao Li , Long Zeng