Why Monitor Calibration is Crucial when Setting up a Vision System
Your display is an essential interface when working with vision applications. Monitor calibration is an often overlooked yet crucial step in setting up a vision application, especially if visual inspection is the primary use for the camera. Even monitors from the same manufacturer, with the same model number, and connected to the same computer can display the same image with some variance in tonality or color.
Understanding Dynamic Range and Signal-to-Noise Ratio When Comparing Cameras
Dynamic Range and Signal-to-Noise Ratio are very helpful when comparing cameras and trying to select the particular camera to meet your needs. Dynamic Range and Signal-to-Noise Ratio are commonly mistaken with one another, so let’s clarify the differences with providing definitions, equations, and descriptions for each.
The Impact of a Lens’ Focal Length on a Vision System
Selecting a lens for a vision system plays a crucial part in the overall behavior of the system. Not only will it dictate your field of view and depth of field, but it can also have implications on your machine vision algorithms and rules. Let’s explore the impact that the lens’s focal length can have on a system using machine vision.
Why Sensor Size Matters When Selecting a Camera for an Imaging Application
When selecting a camera for an imaging application, the size of the camera’s sensor is an important consideration as sensor pixel size is directly related to its sensitivity. Sensor sizes, however, are not exactly as they may seem. A 1” sensor is indeed larger than 1/2” sensor but it does not measure exactly 1 inch in any of its dimensions including diagonally.
Sensitivity vs. Frame Rate in Low Light Imaging
Understanding Resolution in Digital Microscopy
An In-Depth Look at Bit Depth
The bit depth of a camera defines the number of distinct shades that are available for each pixel. Many imaging applications don’t require a bit depth of more than 8 bits, however when color accuracy is needed, high bit depth is key in detecting the slightest deviation from specific color tones. For instance, when inspecting paint in automotive assembly lines, high bit depth allows the industrial camera to perform the analysis with greater accuracy.
Using NIR for Inspection Applications
This week, Lumenera is at the SPIE Defense + Commercial Sensing show demonstrating our Lt16059HM, a USB 3.0 industrial grade 16 MP CCD large format monochrome camera with Canon lens and a visible light blocking filter. Using an 850 nm NIR light ring we will be demonstrating how the camera can help differentiate organic vs inorganic matter in inspection applications. The detail and sensitivity at this wavelength is a result of our superior camera design that does not contain infrared filters, anti-aliasing filters or data altering firmware commonly found consumer camera systems.
Back to School with Lumenera
Our friends at BioBus told us that our INFINITY microscope cameras made the experience significantly more impactful for both students and staff. As the hands-on, visual nature of microscopy is key to the success of their program, our research-grade cameras led to an enhanced learning experience for the students—they were more engaged and eager to spend more time on the microscopes, and able to ask more questions about the real-time results they were seeing on the monitors thanks to the video frame rate and high definitions images our cameras produced.
Selecting the Right Coupler for your Microscope Camera
Selecting a suitable coupler to connect a camera to a microscope is an important step in the instrument’s configuration. Another term for a coupler is a C-mount adapter, and the terms are often used interchangeably. When selecting a coupler, several factors must be considered in order to maximize the camera’s field of view, without compromising image quality.