Shape Coding for Daymarks

Hill, J. Harry; Abernethy, C. N.

i

Shape Coding for Daymarks

1974-03-01
By Hill, J. Harry ; Abernethy, C. N.

File Language:

English

Details

Creators:

Hill, J. Harry ; Abernethy, C. N.
Corporate Creators:

John A. Volpe National Transportation Systems Center (U.S.)
Corporate Contributors:

John A. Volpe National Transportation Systems Center (U.S.)
Subject/TRT Terms:
Publication/ Report Number:

DOT-TSC-CG-72-04 ; CG-D-78-74
Resource Type:

Tech Report
Geographical Coverage:

United States
Edition:

Final report; Jul 1071- Jun1972
Corporate Publisher:

United States. Coast Guard
Abstract:

Three experiments were conducted on form discrimination to select and evaluate forms for shape coding of daymarks. The discriminability of the forms was measured by the frequency with which each form was identified correctly and the frequency with which each form was confused with the other forms under evaluation. The form, in addition to the presently used can and nun, that was found sufficiently discriminable for use as a shape code for daymarks is the hourglass or a cylinder of equal aspect ratio. (Author)
Format:

PDF
Download URL:

https://rosap.ntl.bts.gov/view/dot/11376/dot_11376_DS1.pdf
File Type:

[PDF - 5.01 MB]
Collection(s):

Volpe Center
Main Document Checksum:

urn:sha256:72a32e09520446d43763042f65634d25c4b268f98bf87be7683547a5ecfc09db

File Language:

English

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