Which Camera Has Higher Resolution - Color or Monochrome? Hardware: Image Acquisition (IMAQ)
Problem: I have the option of choosing either a color or a monochrome camera for a machine vision application. Which type of camera should I choose if I want higher resolution? Solution: For two cameras with an equal number of pixels, the monochrome camera can give you higher resolution than the color camera. Most color cameras determine pixel color with a combination of filters (such as the Bayer filter) and interpolation from the intensity values of neighboring pixels. This interpolation inevitably reduces resolution. Monochrome cameras do not need this interpolation and hence give you higher resolution than color cameras with a single image sensor. If you want a color image with the highest possible resolution, you need to use a color camera with three separate image sensors for the three colors. In these devices, a prism splits the incoming light into Red, Green and Blue components and directs it to the appropriate image sensor. These cameras typically consume more power than the single image sensor cameras. Related Links: Attachments:
Report Date: 11/08/2007 Last Updated: 11/08/2007 Document ID: 4F7LD91S |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
