Camera & Vision Techniques

Gamma is a machine vision technique used to correct the difference between the digital image readout and the perception of the human eye. It can also be used to correct over illuminated spots. This is a detailed article about Gamma correction.

Depth of field is important for acquiring a sharp image of an object you are inspecting. With the right use of depth of field, you can ensure that the object you inspect is in focus, while the background and foreground are not in focus. That way it is easier for your vision software to recognize your object.

Applications with fast moving objects, often need a high framerate and short exposure time. Short exposure time comes with less light, meaning a light sensitive lens and image sensor are required.
Here is an overview of settings that will help you find the optimal settings in your high-speed application. You can use this as a guideline.

Welcome to the step-by-step instruction for installing an industrial camera to the MVec167 industrial camera enclosure. If at any moment during the instruction, you have questions, make sure to give us a call or email us at cs@get-cameras.com and our team will help you out. We wish you good luck with the installation

Pixel binning and Decimation are advanced camera features that are available on a selected cameras. To check if this feature is available for your camera, open the framerate calculator as explained in this article https://www.get-cameras.com/How-to-use-the-frame-calculator-for-industrial-cameras and check if you have the BinningHorizontal, BinningVertical, DecimationHorizontal and DecimationVertical field visible in the framerate calculator for your camera model.

Industrial machine vision cameras are reliable and robust, so must be the external triggering system.

When fast operation is needed, the trigger sensor needs to react very quickly. The trigger sensor will change the voltage (electricity) on the specified pins of the camera’s I/O connector.

This system works with the so-called rising edge or falling edge, voltage going from a low value to high (rising edge), or from high to low (falling edge).

To calculate the framerate of an industrial camera, a framerate calculator is available. This doc used to be available after installing the SDK. The frame rate calculator (an excel file) was located in the folder C:\Program Files\Daheng Imaging\GalaxySDK\Doc. Currently you can download the frame rate calculator from our download area.

Bandwidth is the amount of data which can be transmitted over a certain interface (USB3 / GigE / 5GigE) during a certain period. The higher the bandwidth of the interface, the more and faster data can be received or sent. This article will explain multiple options for bandwidth control and how to calculate the required framerate for your industrial USB3 camera.

This guide will explain how to set and use the Region of interest function of the industrial camera, how to resize an image and how to capture only a defined area. This is commonly used to:
-    reduce the amount of collected data
-    reduce the required bandwidth
-    increase the framerate of an industrial camera
-    isolate the view on a certain area
In this article we will set a Region of Interest and offset it from the top left corner to the centre of our image. Using these 3 steps you can define the size and position of the industrial cameras Region of Interest.

This article will explain 4 different ways to power a GigE camera. We talk about powering the industrial camera via a PoE Switch, PoE Injector, GigE Power adapter and via an external power source.

When you have set the parameters of your camera according to your application requirements, you can store these settings into the camera. When you reboot the camera, or reapply power to the camera, the camera will now start with your saved settings.

The use of (color) C-mount lens filters is to be able to create contrast between colored parts of an object with a monochrome camera to easily detect and measure the specific part of the object. Additionally (color)C-mount lens filters are used to block external-environmental lighting. Why monochrome camera and not color? Because monochrome cameras  are up to 3 times more light sensitive and produce sharper images. (Color)C-mount lens filters can be applied to camera lenses without significant loss of light or image quality.

To synchronize industrial machine vision cameras the I/O port of the industrial camera is required. A master camera will hardware trigger it’s slave cameras to assure perfect synchronization between all cameras. In this example we explain how to connect 1 master camera to 3 slave cameras. As a result the setup will have 4 industrial cameras perfect synchronized.
Technical schematic of a synchronized camera setup:

We will explain how to connect 4 industrial GigE cameras. Therefore we have used the following material: 4x MER-630-16GC-P, 6.3MP industrial GigE camera 5 Port PoE switch 1000mbit / 1Gbit PC with windows 10 and a 1000mbit / 1Gbit networkcard Please double check that your connection is 1000mbit / 1Gbit and not 100mbit. Some PoE switches are only 100mbit and we see more often that customer think they have 1Gbit connection but in reality they have a 100mbit connection. This article explains how you can check if you have a 1 Gbit connection. You can only check this when the industrial GigE camera is connected.

How to connect and trigger a LED light source with a machine vision camera from Daheng Imaging using an industrial strobe controller. This is applicable to both USB3 and GigE machine vision cameras that have a trigger output. As additional hardware we have used a 12V powersupply, a Power LED and a triggerable industrial strobe controller, the ACC-MV-LED-STROBECONTROLLER-V1.