Automatic Data Reduction from Aerial Photographs - Phase 1 Report

Details

• Creators:
  Raudseps, Juris G. ; Prerau, David S.
• Corporate Creators:
  John A. Volpe National Transportation Systems Center (U.S.)
• Corporate Contributors:
  United States. Federal Highway Administration
• Subject/TRT Terms:
  • Traffic
  • Aerial photography
  • Data collection
  • Information processing
  • Aerial surveying
  • Computer programs
• Publication/ Report Number:
  DOT-TSC-FHWA-71-01;PB-204 810
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States
• Edition:
  Technical report, Jul 1970-Jun 1971
• Corporate Publisher:
  United States. Federal Highway Administration
• Abstract:
  Aerial photographs are useful in various studies of highway traffic behavior. From a timed sequence of aerial photographs of a fixed highway area, one can find for each vehicle crossing the area data on position, velocity, trajectory (i.e., entrancing, lane changing, and exiting) and type (i.e., car, truck, or bus). In this project, an interactive system consisting of a computer, computer-controlled flying spot scanner, and a graphics tablet is utilized to significantly automate the data reduction process. This report describes the state-of-the-art of data reduction and the system being developed. The pertinent computer programs developed to date are documented in detail.
• Format:
  PDF
• Funding:
  R-1016
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/11514/dot_11514_DS1.pdf
• File Type:
  [PDF - 6.53 MB]
• Collection(s):
  Volpe Center ; Federal Highway Administration
• Main Document Checksum:
  urn:sha-512:e45e2599589fb9d81673d478659415494f0ba589a38edf9352c6cd08e08404b44549e38a886dc7d5f5401d351bd5d9fa9d3ccc4d133f1426c03f22836ec94466