MVTec Software GmbH

3D 视觉技术 – 单目 2½D(高度图像)

Depth from focus
Sheet of light
沿一束投影光线测量物体的轮廓,可以确定物体的 3D 形状。

单目 2½D – Depth from Focus 和 Sheet of Light

有多种“主动技术”可用于通过一台相机提取高度信息。得到的 3D 信息非常类似于双目立体。最常用的方法有:

  • Depth from focus (DFF) 通过计算图像所有像素的焦点来提取距离信息。使用小景深计算物体表面与相机的距离。
  • Sheet of light 意指通过重建物体上的投射光线来测量物体的高度轮廓。

这些技术尤其适用于三维重建,DFF 特别适用于小型物体,sheet of light 则适用于没有纹理的物体。典型应用示例包括 3D 物体的质量检查以及 3D 物体的位置识别。

对于密集的高度图,我们的软件提供了多种可用于处理 2½D 图像的方法,例如确定 3D 平面之间的物体边缘或角度。Sheet of light 还可以实现面向线或点的高精准度 3D 测量。


DFF 示例
使用我们的软件,通过 DFF 进行 PCB 跟踪检查。
Sheet of light 示例
使用我们的软件,通过 sheet of light 测量物体。


References CN

Bin-picking application with MVTec HALCON boosts productivity

Short cycle times, little scrap, minimal stock-keeping – the factory of the future is networked and highly economical. This requires increasingly...

References CN

Fully automated dispense and labeling system for pharmaceutical products runs with MVTec HALCON

MVTec’s Certified Integration Partner Crave Technical developed a vision system for an automatic unit-of-use dispense and labeling system for...

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MVTec HALCON controls linear conveyor and robot system for fully automatic assembly of components

The complexity of the automation technology is constantly growing. On the one hand, this is due to the increasing variety of parts, and on the other...

References CN

甜椒机器人 SWEEPER 利用 MVTec HALCON 检测并采摘成熟作物

荷兰瓦赫宁根大学及研究中心 (WUR) 开发了一种能够收获成熟作物的温室采摘机器人。这项任务基于形状和颜色的检测算法使用 MVTec HALCON 实现。


Science Project: Proprioceptive Industrial Robot Gripper – Kinemetrix

Kinemetrix, based in Lexington, KY, specializes in advanced solutions for robotic automation. This spring, they supported a team of high school...

References CN

3D Vision Guided Robotic Assembly - Kinemetrix

Using HALCON's surface-based 3D matching technology and 3D point cloud data, the position and orientation of parts on an automated clip assembly cell...


Completely under Control: Bin-Picking-System Allows for Better Efficiency in the Production of Differential Gears - Jtekt Torsen

This article only exists as German version. To read the article in German, please follow this link.


Vision Helps Spot Failures on the Rail - Network Rail Ltd.

An automated vision inspection system relieves rail workers from the task of manually inspecting rail infrastructure


Vision Q.400 – The Universal Inspection Software for Industrial Image Processing

The software package Vision Q.400 from Q.VITEC was first created 20 years ago in cooperation with MVTec. Since this time, it has been continuously...


Vision system sorts tomato seedlings - University of Wageningen

More than 150 million tons of tomatoes are produced every year around the world. With seedlings costing €0.25, plant growers such as Westland...