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Research connecting text and images has recently seen several breakthroughs, with models like CLIP, DALL-E 2, and Stable Diffusion. However, the connection between text and other visual modalities, such as lidar data, has received less…

Computer Vision and Pattern Recognition · Computer Science 2023-05-03 Georg Hess , Adam Tonderski , Christoffer Petersson , Kalle Åström , Lennart Svensson

While three-dimensional (3D) building models play an increasingly pivotal role in many real-world applications, obtaining a compact representation of buildings remains an open problem. In this paper, we present a novel framework for…

Computer Vision and Pattern Recognition · Computer Science 2022-12-20 Zhaiyu Chen , Hugo Ledoux , Seyran Khademi , Liangliang Nan

The aim of this work is to provide a semantic scene synthesis from a single depth image. This is used in assistive aid systems for visually impaired and blind people that allow them to understand their surroundings by the touch sense. The…

Computer Vision and Pattern Recognition · Computer Science 2021-04-22 Chayma Zatout , Slimane Larabi

In this paper, we introduce a method for estimating blind spots for sensor setups of autonomous or automated vehicles and/or robotics applications. In comparison to previous methods that rely on geometric approximations, our presented…

Robotics · Computer Science 2024-02-15 Marc Uecker , J. Marius Zöllner

In this paper, we consider a simple class of stratified spaces -- 2-complexes. We present an algorithm that learns the abstract structure of an embedded 2-complex from a point cloud sampled from it. We use tools and inspiration from…

Computational Geometry · Computer Science 2023-05-05 Yossi Bokor Bleile

A growing body of work studies Blindspot Discovery Methods ("BDM"s): methods that use an image embedding to find semantically meaningful (i.e., united by a human-understandable concept) subsets of the data where an image classifier performs…

Machine Learning · Computer Science 2023-07-13 Gregory Plumb , Nari Johnson , Ángel Alexander Cabrera , Ameet Talwalkar

We present PointFusion, a generic 3D object detection method that leverages both image and 3D point cloud information. Unlike existing methods that either use multi-stage pipelines or hold sensor and dataset-specific assumptions,…

Computer Vision and Pattern Recognition · Computer Science 2018-08-28 Danfei Xu , Dragomir Anguelov , Ashesh Jain

We propose a novel approach aimed at object and semantic scene completion from a partial scan represented as a 3D point cloud. Our architecture relies on three novel layers that are used successively within an encoder-decoder structure and…

Computer Vision and Pattern Recognition · Computer Science 2022-04-01 Yida Wang , David Joseph Tan , Nassir Navab , Federico Tombari

We use a deep neural network to detect and place region-of-interest boxes around ultracold atom clouds in absorption and fluorescence images---with the ability to identify and bound multiple clouds within a single image. The neural network…

Quantum Gases · Physics 2021-08-03 Lucas R. Hofer , Milan Krstajić , Péter Juhász , Anna L. Marchant , Robert P. Smith

Scene understanding from images is a challenging problem encountered in autonomous driving. On the object level, while 2D methods have gradually evolved from computing simple bounding boxes to delivering finer grained results like instance…

Computer Vision and Pattern Recognition · Computer Science 2020-03-11 Rui Wang , Nan Yang , Joerg Stueckler , Daniel Cremers

Perception systems play a crucial role in autonomous driving, incorporating multiple sensors and corresponding computer vision algorithms. 3D LiDAR sensors are widely used to capture sparse point clouds of the vehicle's surroundings.…

Computer Vision and Pattern Recognition · Computer Science 2025-08-05 Helin Cao , Sven Behnke

Computer-Aided Design (CAD) model reconstruction from point clouds is an important problem at the intersection of computer vision, graphics, and machine learning; it saves the designer significant time when iterating on in-the-wild objects.…

Computer Vision and Pattern Recognition · Computer Science 2023-12-11 Yujia Liu , Anton Obukhov , Jan Dirk Wegner , Konrad Schindler

Spectroscopy is an important tool for probing the properties of materials, chemicals and biological samples. We design a practical transmitter-receiver system that exploits entanglement to achieve a provable quantum advantage over all…

Quantum Physics · Physics 2020-11-03 Haowei Shi , Zheshen Zhang , Stefano Pirandola , Quntao Zhuang

We introduce a learning-based approach for room navigation using semantic maps. Our proposed architecture learns to predict top-down belief maps of regions that lie beyond the agent's field of view while modeling architectural and stylistic…

Computer Vision and Pattern Recognition · Computer Science 2020-07-21 Medhini Narasimhan , Erik Wijmans , Xinlei Chen , Trevor Darrell , Dhruv Batra , Devi Parikh , Amanpreet Singh

We present a data-driven approach that colorizes 3D furniture models and indoor scenes by leveraging indoor images on the internet. Our approach is able to colorize the furniture automatically according to an example image. The core is to…

Graphics · Computer Science 2017-03-01 Jie Zhu , Yanwen Guo , Han Ma

The great flexibility of a view camera allows to take high quality photographs that would not be possible any other way. But making a given object into focus is a long and tedious task, although the underlying laws are well known. This…

Optimization and Control · Mathematics 2015-03-18 Stéphane Mottelet , Luc de Saint Germain , Olivier Mondin

Point clouds are widely used in various fields, including augmented reality (AR) and robotics, where relighting and texture editing are crucial for realistic visualization. Achieving these tasks requires accurately separating albedo from…

Computer Vision and Pattern Recognition · Computer Science 2025-11-14 Shogo Sato , Takuhiro Kaneko , Shoichiro Takeda , Tomoyasu Shimada , Kazuhiko Murasaki , Taiga Yoshida , Ryuichi Tanida , Akisato Kimura

Single-view point cloud completion aims to recover the full geometry of an object based on only limited observation, which is extremely hard due to the data sparsity and occlusion. The core challenge is to generate plausible geometries to…

Computer Vision and Pattern Recognition · Computer Science 2022-10-05 Bowen Zhang , Xi Zhao , He Wang , Ruizhen Hu

Creative processes such as painting often involve creating different components of an image one by one. Can we build a computational model to perform this task? Prior works often fail by making global changes to the image, inserting objects…

Computer Vision and Pattern Recognition · Computer Science 2024-12-25 Alper Canberk , Maksym Bondarenko , Ege Ozguroglu , Ruoshi Liu , Carl Vondrick

As the basic task of point cloud analysis, classification is fundamental but always challenging. To address some unsolved problems of existing methods, we propose a network that captures geometric features of point clouds for better…

Computer Vision and Pattern Recognition · Computer Science 2021-04-14 Shi Qiu , Saeed Anwar , Nick Barnes