Analysis of Contrast Sensitivity and Spectral Response of Imaging Systems.

Abstract

The characteristics of imaging systems CID, CCD, and VIDICON were investigated in terms of the contrast sensitivity and the spectral response in the near infrared region. The object distance of 83.5 cm, the radiant flux density of 0.93 microwatts/cm2 and a black and white bar chart were used for the measurement of CTF. The spectral response was measured at 2520 K using a tungsten light source. The CID image sensor has high sensitivity, resolving capability and spectral response at low light level comparing to the CCD or VIDICON. The limited resolution values of 23.0 line-pairs/mm for CCD and 28.4 line-pairs/mm for VIDICON, the cutoff wavelengths of 1.0 micrometers for CCD and 0.94 micrometers for VIDICON were determined. The limiting resolution value and the cutoff wavelength for CID were much higher than those of CCD or VIDICON and lay outside the range of this experiment. Keywords include: CID, CCD, VIDICON, Noise, Limiting resolution, Contrast sensitivity, and Spectral response.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1985
Accession Number
ADA164228

Entities

People

  • Young Soo Kim

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Advanced Electronics
  • Biomedical
  • Sensors

DTIC Thesaurus Topics

  • Camera Tubes
  • Charge Coupled Devices
  • Classification
  • Detectors
  • Dynamic Range
  • Electro-Optics
  • Elements
  • Flux Density
  • Gratings (Spectra)
  • Light Sources
  • Low Light Levels
  • Measurement
  • Micrometers
  • Optical Phenomena
  • Optics
  • Radiant Flux Density
  • Transfer Functions

Fields of Study

  • Physics

Readers

  • Astronomy/Astrophysics
  • Sensor Fusion and Tracking Systems.