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Treesearch

An evaluation of lithographed forest stereograms.

Informally Refereed
Download (PDF 690 KB): https://research.fs.usda.gov/download/treesearch/25869.pdf

Abstract

Aerial photo stereograms are valuable for showing neophyte photo interpreters the stereoscopic appearance of common objects and conditions. They are also useful for instruction in measuring heights, horizontal distances, and angles on photos. Collections of stereograms of known conditions are worthwhile reference material for interpretation work in unknown areas.

Citation

Bernstein, David A. 1961. An evaluation of lithographed forest stereograms. PNW Old Series Research Note No. 212, p. 1-5