Machine vision systems: basic things you need to know

A machine vision system is based on technology that uses image-based inspection for a variety of applications such as robot guidance, process control, and automated inspection, just to name a few. In reality, machine vision involves many technologies, expertise, methods, actions, embedded systems, hardware and software products, to name a few. Let’s find out more about it.

There is a difference between machine vision and machine vision. Basically, this system tries to create an integration between current technologies in new ways and implement them to solve real world problems.

The machine vision process involves planning the details of the project and then finding solutions. And the process starts with the creation of images and progresses to the automated analysis of the information required as images.

Image Based Inspection

Mainly, visual inspection machines are used for image-based inspection and robot guidance. The first step involves image acquisition, which is taken using lighting, lenses, and cameras.

VM software programs are used in combination with digital image processing for the extraction of the required information.

Team

Typical parts of an automated inspection system include output devices, software, image processors, cameras, and lighting.

Images

The imaging device may be part of the unit or may function independently. If it is part of the machine, it is known as a smart sensor or smart camera. When used as a stand-alone unit, the connection is made to intermediate hardware, a frame grabber or rendering device.

Although traditional imaging is also used in machine vision systems, other alternatives such as X-ray imaging, 3D imaging, line scan imaging, hyperspectral imaging, and multispectral imaging are also quite common.

While most visual inspection systems use 2D images, many also use 3D images. In fact, 3D image-based systems are becoming more popular over time. The most common 3D imaging method involves triangulation, which is based on scanning.

In this scan, a laser is fired onto the object’s surface and viewed from quite a different angle. Also, in the case of a visual inspection machine, you can achieve this by a scanning movement of the camera.

Lines from more than one scan are combined into a point cloud or depth map. In special cases, stereoscopic vision is implemented, especially when unique features are found in both camera views.

Other visual inspection systems are based on grids or light time. For example, the grid array oriented system makes use of a pseudo-random structured light system.

Image processing

Once an image is captured, it is processed. Generally, the processing is done in more than one stage. Usually the sequence starts with many tools like filters that change the image. Subsequently, the extraction of data and objects is carried out. The data is then communicated and compared to different target values ​​to create the desired results.

So, this was a brief introduction to machine vision systems, also known as visual inspection systems. If you are interested, you can install this system in your inspection rooms for better inspection. I hope this helps.