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Entries for the 'Vision Inspection' Category

3D Void Detection System
Cesar Pena

3D Void Detection System

I recently developed a 3D void detection prototype system for the packaging industry. The system will measure the empty volume inside of a box filled with contents. Once this volume is known, a subsequent system can optimize the number of packing peanuts required to fill up the box. By using this system, the filling of boxes with packing peanuts can be automated. The Hardware and Software used to measure the empty volume are: 3D camera from IFM Electronic (part number PMD O3D201...

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DMC exhibiting at the National Instruments Technical Symposium
Darren Jones

DMC exhibiting at the National Instruments Technical Symposium

DMC will join leading companies to host the National Instruments Technical Symposium that builds on the success of NIWeek, the worldwide virtual instrumentation conference and exhibition held annually in Austin, Texas, where the company is headquartered. NIWeek 2010 concluded in August with attendance of more than 2,500 people, who participated in hands-on training, interactive technical sessions, summits, exhibitions and workshops. National Instruments designed the NI Technical Symposium to del...

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RT-201: PLCs vs. Real-Time Systems
Eric Nielsen

RT-201: PLCs vs. Real-Time Systems

In RT-101: Real-Time Operating Systems (RTOS), I provided readers with a brief description of the many benefits that systems running an RTOS can provide in harsh and demanding environments. The bigger question is: in an industry saturated by PLCs (Programmable Logic Controllers), PACs (Programmable Automation Controllers), Field Point controllers, Microcontrollers and many others, why should an engineer choose an RTOS PAC (Programmable Automation Controller) platform above all the rest? To addre...

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Line Laser Thickness and 3D Inspection
Leon Grossman

Line Laser Thickness and 3D Inspection

I recently implemented a project where we were using a SICK Ranger camera to measure a part. This camera works by measuring the position of light from a line generating laser on its 2D field of view and translating that to a height position. This works because features that are higher and closer to the camera will be closer to the top of the camera's 2D field of view and things that are lower will be closer to the bottom. This is the same effect can easily be seen in shadows when the sun is ...

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RT-301: Capabilities of Distributed LabVIEW Real-Time
Darren Jones

RT-301: Capabilities of Distributed LabVIEW Real-Time

Eric Nielsen’s Real Time blog did a good job of hitting the major strengths and benefits of any system based on a controller running a Real-time operating system. Here I’ll get into a little more depth, specifically for the capabilities these systems give in regards to distributed execution. As we’ve learned, the major benefits of running a Real-Time system are determinism and robust operation. These benefits can be realized in a very powerful way: distributed execution. Dis...

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Selecting the Right Machine Vision Software and Platform
Cesar Pena

Selecting the Right Machine Vision Software and Platform

One of our many areas of expertise at DMC is developing and integrating machine vision systems. Our focus is on offering the most effective solution for the application; we are hardware/vendor independent and are not tied to any platform. When selecting a vision hardware and software platform, the most important questions to answer are: What are the technical challenges of the application? How many vision systems will be produced? How many cameras are needed for each vision system? I...

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Introducing LabVIEW Object Oriented Programming to your Toolbox
Danny Budzinski

Introducing LabVIEW Object Oriented Programming to your Toolbox

The concept of LabVIEW Object Oriented Programming (LVOOP) has been around for a number of years now, but has consistently been one of those areas that seemed to have to high of a learning curve to justify learning “just because”. Luckily, in a recent project I managed to get the green light for implementing an object oriented (OO) solution. For me the biggest appeal for OO programming in LabVIEW was the increase in organization, manageability, and code-reuse that it offers. The i...

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DMC Starts Integrator Relationship with IFM Effector
Ken Brey

DMC Starts Integrator Relationship with IFM Effector

DMC has entered an Integrator relationship with IFM Effector centered around their unique and exciting 3D Image Sensor. This is an industrial, cost-effective Time-of-Flight Camera that measures the distance to everything in its field of view based on the time it takes pulses of light to make the round-trip from the camera to the object and back. Potential uses include volume measurement, object detection and classification, vehicle guidance and much more. The units come self-contained wit...

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Mobile Volume Measurement Device on Fork Truck a Success
David Simmons

Mobile Volume Measurement Device on Fork Truck a Success

Recently one of DMC's customers, LTS Scale, issued a press release describing the first fork-truck-mounted dimensional weighing system. DMC worked closely with this customer from the first stages of research through the development of the system and into product production, successfully delivering a flexible and robust system that met numerous design challenges along the way. The system uses a laser and camera to reconstruct a 3D environment, identifies the object being measured and returns ...

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Edmund Double-Gauss Lenses Produce Sharp Focus
Ken Brey

Edmund Double-Gauss Lenses Produce Sharp Focus

I have been working on a 3D vision application using the SICK Ranger camera. My application involves precision measurement, so I want to get the best results possible from the equipment. The Ranger came with a Fujinon 35mm lens which focused sharply in the center of the field of view. However there was significant blur near the edges. (The CMOS sensor on the Ranger is 15.4mm diagonal. That exceeds the specification of most common machine vision lenses.) I tried a Tamron 35mm lens, and ach...

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Ken Brey

NASA sees the advantages of Structured Light for 3D vision

Recent press releases by NASA show how the agency is realizing the advantages of using Structured Light for 3D vision. A recent NASA Invention of the Year was a hand-held, battery-operated scanner that they use to create surface maps of shuttle tile damage. The same high-speed 3D scanner technology can also be used for longer range 3D measurements. NASA is investigating using this method for Rover Navigation and in-flight shuttle inspection with a system mounted on the robotic arm. DMC ...

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Matrox Introduces 3D Scanning in MIL 9
Ken Brey

Matrox Introduces 3D Scanning in MIL 9

Matrox has added 3D scanning tools to the Matrix Imaging Library (MIL), version 9.0. The concept is similar to that employed in single-purpose devices by Micro-Epsilon and SICK. (see Two 3D Scanner tools.) The camera images a laser line from an out-of-plane location and processes the line position and shape as 3D points. The difference is that while the others process the line directly in the camera and transfers only a single line of height information, Matrox transfers the raw image to the ...

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New 3D Measurement Tool from IFM
Ken Brey

New 3D Measurement Tool from IFM

I saw an amazing new 3d vision tool at the Robot and Vision Show today. It is the IFM Defector PMD 3DD. This device is a 64X48 pixel distance sensor. It operates by the time of flight principle. A pulse of light infra-red light is emitted by the device which bounces off of an object in the field of view and returns to the device through a lens. Each pixel measures the time required for the light to make the round trip. By this way, it produces a 3D image of the object in front of it. ...

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Spotlight: Two 3D Scanner tools
Ken Brey

Spotlight: Two 3D Scanner tools

Purpose-built 3D scanning tools are an exciting new development in machine vision. People have been building their own 3D scanners for years with cameras and line lasers. Now, a couple of integrated and factory-calibrated units are on the market which offer a great head-start to a successful 3D scanning application. SICK | IVP Ruler E The SICK | IVP Ruler E is the integrated and calibrated version of the Sick Ranger product line. Specs: 13 varieties available 15...

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