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The introduction of cheap RGB-D cameras, stereo cameras, and LIDAR devices has given the computer vision community 3D information that conventional RGB cameras cannot provide. This data is often stored as a point cloud. In this paper, we…

计算机视觉与模式识别 · 计算机科学 2018-10-22 Aleksandr Savchenkov , Andrew Davis , Xuan Zhao

In this work, we present a new 3D face recognition method based on Speeded-Up Local Descriptor (SULD) of significant points extracted from the range images of faces. The proposed model consists of a method for extracting distinctive…

计算机视觉与模式识别 · 计算机科学 2012-10-29 B. H. Shekar , N. Harivinod , M. Sharmila Kumari , K. Raghurama Holla

We show how to define curvature as a measure using the Gauss-Bonnet Theorem on a family of singular surfaces obtained by gluing together smooth surfaces along boundary curves. We find an explicit formula for the curvature measure as a sum…

经典分析与常微分方程 · 数学 2018-07-02 Robert S Strichartz

In this paper, we propose a novel fitting method that uses local image features to fit a 3D Morphable Model to 2D images. To overcome the obstacle of optimising a cost function that contains a non-differentiable feature extraction operator,…

计算机视觉与模式识别 · 计算机科学 2016-05-13 Patrik Huber , Zhen-Hua Feng , William Christmas , Josef Kittler , Matthias Rätsch

Minimizing the Gaussian curvature of meshes can play a fundamental role in 3D mesh processing. However, there is a lack of computationally efficient and robust Gaussian curvature optimization method. In this paper, we present a simple yet…

图形学 · 计算机科学 2021-01-19 Wenming Tang , Yuanhao Gong , Kanglin Liu , Jun Liu , Wei Pan , Bozhi Liu , Guoping Qiu

3D object proposals, quickly detected regions in a 3D scene that likely contain an object of interest, are an effective approach to improve the computational efficiency and accuracy of the object detection framework. In this work, we…

机器人学 · 计算机科学 2018-06-27 Ramanpreet Singh Pahwa , Tian Tsong Ng , Minh N. Do

Three-dimensional local feature detection and description techniques are widely used for object registration and recognition applications. Although several evaluations of 3D local feature detection and description methods have already been…

计算机视觉与模式识别 · 计算机科学 2020-07-06 Odysseas Kechagias-Stamatis , Nabil Aouf , Mark A. Richardson

The recognition of materials and objects inside transparent containers using computer vision has a wide range of applications, ranging from industrial bottles filling to the automation of chemistry laboratory. One of the main challenges in…

计算机视觉与模式识别 · 计算机科学 2015-06-02 Sagi Eppel

One of the fundamental requirements for an artificial hand to successfully grasp and manipulate an object is to be able to distinguish different objects' shapes and, more specifically, the objects' surface curvatures. In this study, we…

医学物理 · 物理学 2011-09-19 Saba Salehi , John-John Cabibihan , Shuzhi Sam Ge

A robust and accurate 3D detection system is an integral part of autonomous vehicles. Traditionally, a majority of 3D object detection algorithms focus on processing 3D point clouds using voxel grids or bird's eye view (BEV). Recent works,…

计算机视觉与模式识别 · 计算机科学 2020-09-18 Sumesh Thakur , Jiju Peethambaran

Skins wrapping around our bodies, leathers covering over the sofa, sheet metal coating the car - it suggests that objects are enclosed by a series of continuous surfaces, which provides us with informative geometry prior for objectness…

计算机视觉与模式识别 · 计算机科学 2025-02-14 Hongru Yan , Yu Zheng , Yueqi Duan

Monocular depth prediction plays a crucial role in understanding 3D scene geometry. Although recent methods have achieved impressive progress in evaluation metrics such as the pixel-wise relative error, most methods neglect the geometric…

计算机视觉与模式识别 · 计算机科学 2019-08-02 Wei Yin , Yifan Liu , Chunhua Shen , Youliang Yan

An accurate and rapid-response perception system is fundamental for autonomous vehicles to operate safely. 3D object detection methods handle point clouds given by LiDAR sensors to provide accurate depth and position information for each…

机器人学 · 计算机科学 2020-08-04 Guidong Yang , Simone Mentasti , Mattia Bersani , Yafei Wang , Francesco Braghin , Federico Cheli

We present a fine-tuning method to improve the appearance of 3D geometries reconstructed from single images. We leverage advances in monocular depth estimation to obtain disparity maps and present a novel approach to transforming 2D…

计算机视觉与模式识别 · 计算机科学 2022-10-20 Marissa Ramirez de Chanlatte , Matheus Gadelha , Thibault Groueix , Radomir Mech

This paper considers online object-level mapping using partial point-cloud observations obtained online in an unknown environment. We develop and approach for fully Convolutional Object Retrieval and Symmetry-AIded Registration (CORSAIR).…

计算机视觉与模式识别 · 计算机科学 2022-04-26 Tianyu Zhao , Qiaojun Feng , Sai Jadhav , Nikolay Atanasov

Reconstructing photo-realistic drivable human avatars from multi-view image sequences has been a popular and challenging topic in the field of computer vision and graphics. While existing NeRF-based methods can achieve high-quality novel…

计算机视觉与模式识别 · 计算机科学 2024-03-19 Yujiao Jiang , Qingmin Liao , Xiaoyu Li , Li Ma , Qi Zhang , Chaopeng Zhang , Zongqing Lu , Ying Shan

3D convolutional neural networks (3D-CNN) have been used for object recognition based on the voxelized shape of an object. In this paper, we present a 3D-CNN based method to learn distinct local geometric features of interest within an…

计算机视觉与模式识别 · 计算机科学 2017-07-18 Aditya Balu , Sambit Ghadai , Kin Gwn Lore , Gavin Young , Adarsh Krishnamurthy , Soumik Sarkar

Single-view 3D shape retrieval is a challenging task that is increasingly important with the growth of available 3D data. Prior work that has studied this task has not focused on evaluating how realistic occlusions impact performance, and…

计算机视觉与模式识别 · 计算机科学 2024-01-02 Qirui Wu , Daniel Ritchie , Manolis Savva , Angel X. Chang

This paper uses clustering algorithms to introduce a shape framework for deformable objects. Until now, the shape detection of the deformable objects has faced several challenges: 1) unable to form a unified framework for multiple shapes;…

机器人学 · 计算机科学 2023-12-19 Fangqing Chen

The goal of this paper is to compare surface-based and volumetric 3D object shape representations, as well as viewer-centered and object-centered reference frames for single-view 3D shape prediction. We propose a new algorithm for…

计算机视觉与模式识别 · 计算机科学 2018-06-13 Daeyun Shin , Charless C. Fowlkes , Derek Hoiem