Image Interpretation for Soft-Copy Displays of Digitally Derived Images

Abstract

The effects of manipulating image noise and image blur were determined on an information extraction task using soft-copy displays. The participants in this study were 15 military photointerpreters from Langley Air Force Base, Virginia. The empirical findings indicated that the main effect of image noise was statistically significant (p < 0.002) as was the main effect of image blur (p = 0.060). The noise by blur interaction was not statistically significant (p = .872). In general, image interpretation performance decreased with increasing image noise and image blur levels. This pattern of results was very similar to the empirical observations of a previous study which employed the same image and task conditions for hard-copy displays.

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References

Burke

J. J.

Snyder

H. L.

Quality metrics of digitally derived imagery and their relation to interpreter performance. Proceedings of the Society for Photographic Instrumentation Engineers, Image Quality, Vol. 310, San Diego, CA, August, 1981.

Burke

J. J.

Strickland

R. N.

Quality metrics of digitally derived imagery and their relation to interpreter performance: I. Preparation of a large scale database. Blacksburg: Virginia Polytechnic Institute and State University, HFL-81-1, 1982.

Chao

B. P.

Beaton

R. J.

Snyder

H. L.

Evaluation of CRT-displayed digital imagery using subjective scaling. A paper presented at the Annual Meeting of the Human Factors Society, Seattle, October, 1982.

Snyder

H. L.

Maddox

M. E.

Shedivy

D. I.

Turpin

J. A.

Burke

J. J.

Strickland

R. N.

Digital image quality and interpretability: Database and hardcopy studies. Optical Engineering, 1982, 21, 14–22.