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Cognex Corp. - Smart Sensor 3-24 GIF LB

Getting the Most Out of Your Image

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Recent advances in image-processing technologies are meeting the demand for better picture quality, faster data rates and higher accuracy.

Sarah Sookman

For developers of scientific or industrial image-processing applications, robustly and accurately extracting the vital information contained in each pixel presents a constant challenge. Recent developments in camera, frame grabber and algorithm technologies have contributed to raising the standards for picture quality, data rates, processing capabilities, robustness and accuracy.

The front of the line

At the front end of an application is the camera (or sensor). Typical analog cameras provide 640 x 480-pixel, 8-bit resolution at 25 or 30 fps. Many imaging applications, though, demand higher resolution and frame rates. As digital cameras made their appearance, those in industry began to see their benefits: Converting analog data to digital was no longer necessary, and images at a greater resolution and bit depth could be acquired. With digital cameras, image data can be transmitted directly to the PC, eliminating the need to convert the digital data to analog and back again. The benefits of an all-digital interface spawned research efforts in this direction...
Hamamatsu Corp. - Earth Innovations MR 2/24

Published: May 2003
Glossary
algorithm
A precisely defined series of steps that describes how a computer performs a task.
pixel
A pixel, short for "picture element," is the smallest controllable element of a digital image or display. It is a fundamental unit that represents a single point in a raster image, which is a grid of pixels arranged in rows and columns. Each pixel contains information about the color and brightness of a specific point in the image. Some points about pixels include: Color and intensity: In a colored image, each pixel typically consists of three color channels: red, green, and blue (RGB). The...
algorithmcamerasFeaturesframe grabbersimage-processingindustrialpixelSensors & Detectors

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