Understanding Imaging System Specifications for Pixel-Level Measurement of Displays: Comparing Measurement Performance of Current CCD and CMOS Sensors

White Paper

Imaging systems rely on sensors to accurately interpret light as photometric data and enable evaluation of displays. This paper discusses properties of today’s high-resolution sensors used for image-based photometric display testing, and examines measurement examples to compare sensor type (CCD versus CMOS), pixel size, and signal-to-noise ratio (SNR), and the effect of these properties on the accuracy and repeatability of data for pixel-level display measurement.

In this White Paper, you will learn about:

  • Pixel-level display measurement challenges
  • Importance of measurement repeatability and precision
  • Measurement system specifications
    • Resolution
    • Signal-to-Noise Ratio (SNR)
    • Photo-sensor size and well capacity
    • Photon Transfer Curve (PTC)
  • A comparison of today's CCD vs. CMOS performance for pixel-level measurement
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