The capability of a machine vision camera to capture the details of a scene is defined by several parameters with dynamic range at the top of the list. High contrast images require a high dynamic range. One problem is there can be different ways to calculate dynamic range, which makes it difficult to compare cameras…
In theory, bigger pixels on full-HD CCD image sensors are better for global security applications because they are more sensitive for improved low light performance. The drawback is that bigger optics are required so size, weight, power, and cost (SWaP-C) requirements are challenged. As many systems are upgrading from standard definition to full-HD cameras or…
How electro-optical sensor modules with full HD resolution or higher, enhance the detection, recognition, and identification capabilities of situational awareness, long- range observation and designator systems. To improve the information gathered from situational awareness, long-range observation and designator systems, the big trend is to gather full motion video 24/7 with the addition of more daylight…
Hyperspectral imaging involves dividing light into thousands of small bands to gain detailed information. This compares with multi-spectral, which deals with far fewer bands. Every pixel has a complete spectrum in it and this can be used for a variety of applications including mineralogy, agriculture, astronomy, and surveillance. With lightweight hyperspectral imaging systems mounted on…
There is a perception that color precision can only be achieved with 3-chip prism-based (3-CCD, multiple-chip prism, etc.) video cameras. Because of advances in sensor design, knowledgeable camera designers can now get excellent color images from Bayer patterned image sensors. These images are so good that all consumer digital SLR cameras use a single chip…
For details on measuring the Photon Transfer Curve, Hyperspectral Imaging, Machine Vision Camera Evaluation and Selection or 3-D Underwater Imaging, check out some of our most popular posts: Measuring the Photon Transfer Curve How to Measure the Photon Transfer Curve for CCD or CMOS Cameras How to Measure the Photon Transfer Curve for CCD or…
The HD-SDI video interface standard was developed for television broadcasting, but it can be advantageous in global security applications such as high-end surveillance or unmanned systems, allowing simple designs or upgrades with full HD cameras.
Hyperspectral imaging combines imaging and spectroscopy, which can increase measurement accuracy for a variety of applications (for more information on hyperspectral imaging, click here). At the 2013 Photonics West Exhibition, Imec demonstrated their approach. Here is a video of Andy Lambrechts of Imec explaining their solution: http://www.photonicsonline.com/doc.mvc/multispectral-imaging-for-subject-classification-0001 Imec approached Adimec to collaborate as the…
What is hyperspectral imaging?
This is a repost of a wonderful blog written by Albert Theuwissen on his blog (Harvest Imaging) that we thought might be helpful for those testing and evaluating CCD or CMOS machine vision cameras.
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