Details:

Creators:
Grejner-Brzezinska, Dorota A. ; Toth, Charles
Grejner-Brzezinska, Dorota A. ; Toth, Charles Less -
Corporate Creators:
Ohio. Dept. of Transportation
Subject/TRT Terms:
[+]
Digital Mapping Geographic Information Systems Geographic Information Systems--Ohio Global Positioning System Photography Photography In Road Inspection Roads--Inspection--Ohio
Publication/ Report Number:
FHWA/OH-2004/013
Resource Type:
Tech Report
Geographical Coverage:
Ohio
Edition:
Executive summary.
Corporate Publisher:
Ohio. Dept. of Transportation
Abstract:
Obtaining sensor orientation by direct measurements is

a rapidly emerging mapping technology. Modern GPS

and INS systems allow for the direct determination of

platform position and orientation at an unprecedented

accuracy. In airborne surveying, aircraft trajectory and

platform orientation can be determined at the level of

few cm and 20-30 arcsec, respectively at an almost

continuous time scale. The use of such integrated

GPS/INS systems offers immediate benefits for largeformat

camera-based airborne surveying by

substantially reducing the need for ground control and

by basically eliminating aerial-triangulation, except for

system calibration. For emerging sensors such as

LIDAR, RADAR, multi-/hyperspectral imagers,

however, the use of the direct orientation systems is

mandatory since indirect methods such as control

point-based aerial-triangulation are not feasible.

ODOT Aerial Engineering has been operating an

airplane with a large-format Zeiss Jena LMK2000

camera. The introduction of a modern GPS/INS-based

direct orientation system was not only highly desirable

for economic reasons, but also mandatory if ODOT

wanted to keep up with technological developments.

Since ODOT predominantly performs corridor surveys

over the highway infrastructure, the use of direct

orientation makes it even more attractive in this case,

since the savings due to the elimination of control

points are quite substantial. By establishing a

GPS/INS-based direct orientation technology for

ODOT aerial operations, the foundations was given for

future imaging sensor extensions such as the

introduction of LIDAR systems or the like.


Format:
PDF
Funding:
14661(0)
Collection(s):
US Transportation Collection
Main Document Checksum:
[+]
urn:sha256:f7a8ba7c186ce32c7cfc752db44c39f500998d337264d3b83a1e3ea0a3146835
Download URL:
https://rosap.ntl.bts.gov/view/dot/18469/dot_18469_DS1.pdf
File Type:

Supporting Files

• No Additional Files

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