2022年5月8日 · 本文提出了一种统一的线段检测方法(ulsd)，用于检测平面、鱼眼和球面图像中有畸变和无 畸变的线段。 最近，人们提出了一个更高层次的 线段 检测 任务，即线框解析，以联合 检测 有意义和显著的 线段 和 线段 端点。

2024年8月18日 · ULSD-ISPRS 是基于 PyTorch 实现的统一线段检测方法，源自论文《ULSD: Unified Line Segment Detection across Pinhole, Fisheye, and Spherical Cameras》。 该项目采用了一种基于贝塞尔曲线的创新线段表示方法，能够检测任意畸变的线段，无论图像是否经过畸变校 …

ULSD is a unified line segment detection method for both distorted and undistorted images from pinhole, fisheye or spherical cameras. With a novel line segment representation based on the Bezier curve, our method can detect arbitrarily distorted line segments.

ULSD is a model-free approach that can take both distorted and undistorted images from the pinhole, fisheye or spher- ical cameras as input, and directly output vectorized line

2021年8月1日 · To address these two problems, we propose a novel learning-based Unified Line Segment Detection method (i.e., ULSD) for distorted and undistorted images in this paper. Specifically, we first propose a novel equipartition point-based Bezier curve representation to model arbitrary distorted line segments.

2024年8月18日 · ULSD-ISPRS 是一款由武汉大学与卡内基梅隆大学合作开发的开源工具，实现了针对平面、鱼眼和球面相机的统一实时线段检测算法。本项目基于 PyTorch 实现，利用新颖的贝塞尔曲线表示法，能够有效检测各种变形的线段，无论是畸变还是非畸变图像都能处理。

ULSD is a unified line segment detection method for both distorted and undistorted images from pinhole, fisheye or spherical cameras. With a novel line segment representation based on the Bezier curve, our method can detect arbitrarily distorted line segments.

2021年8月1日 · In this paper, we present a unified line segment detection method (ULSD) for detecting undistorted and distorted line segments in pinhole, fisheye, and spherical images.

2024年3月14日 · The proposed ULSD is a model-free approach that can take both distorted and undistorted images from the pinhole, fisheye or spherical cameras as input, and directly output vectorized line segments, as shown in Fig. 1. The performance of ULSD is evaluated on various datasets which demonstrates the superiority to state-of-the-art (SOTA).

ULSD的网络可分为三部分：特征提取网络、Line Proposal Network（LPN）和最后的分类器LOI Head。 以平面、鱼眼或球形相机拍摄的图像作为输入，网络可以直接输出矢量化的线段，如图1所示。

ULSD-ISPRS是开源PyTorch实现，旨在统一检测针孔、鱼眼和球面相机图像中的线段。 该方法采用Bezier曲线表示，能处理任意扭曲的线段。 在多类型相机数据集上的实验显示其在准确性和效率上优于现有【此简介由AI生成】

ULSD is a unified line segment detection method for both distorted and undistorted images from pinhole, fisheye or spherical cameras. With a novel line segment representation based on the Bezier curve, our method can detect arbitrarily distorted line segments.

2021年5月25日 · In this paper, we propose a new 2D-3D registration method to estimate 2D-3D line feature correspondences and the camera pose in untextured point clouds of structured environments. Specifically, we first use geometric constraints between vanishing points and 3D parallel lines to compute all feasible camera rotations.

2020年11月5日 · Targeting at the unified line segment detection (ULSD) for both distorted and undistorted images, we propose to represent line segments with the Bezier curve model. Then the line...

2022年9月8日 · 本文提出了一种统一的线段检测方法(ulsd)，用于检测平面、鱼眼和球面图像中有畸变和无 畸变的线段。最近，人们提出了一个更高层次的线段检测 任务，即线框解析，以联合检测有意义和显著的线段和线段端点。

Targeting at the unified line segment detection (ULSD) for both distorted and undistorted images, we propose to represent line segments with the Bezier curve model. Then the line segment detection is tackled by the Bezier curve regression with an end-to-end network, which is model-free and without any undistortion preprocessing.

Targeting at the unified line segment detection (ULSD) for both distorted and undistorted images, we propose to represent line segments with the Bezier curve model. Then the line segment detection is tackled by the Bezier curve regression with an end-to-end network, which is model-free and without any undistortion preprocessing.

of-the-art line segment detectors, e.g., HAWP and ULSD, are used to detect line segments on the fused feature map, namely FE-HAWP and FE-ULSD respectively. A glance at the performance of different methods is shown in Fig.1(i) and (l), where the proposed FE-HAWP and FE-ULSD have the best performance. As far as we know, this is the first

超低硫化柴油(ulsd)是一种硫含量大大降低的柴油。自2006年以来，几乎所有在欧洲和北美可用的石油基柴油都是ulsd类型。 降低硫含量的举措允许应用先进的排放控制技术，大大降低柴油燃烧产生的有害排放物。

Ultra-low-sulfur diesel (ULSD) is diesel fuel with substantially lowered sulfur content. Since 2006, almost all of the petroleum-based diesel fuel available in Europe and North America has been of a ULSD type.