Survey of the House of the Charioteers, Ostia, Italy using the Optech ILRIS-3D

Object #:

Survey Date (start):

Mar 15, 2007

Survey Date (end):

Mar 20, 2007

Conditions:

Mostly sunny, windy

Scanner Details:

Optech ILRIS-3D, Serial No:10162, meters

Company Name:

Center for Advanced Spatial Technologies

Turntable Used:

No

RGB Data Capture Information:

NA. Color information was not acquired for the scans however intensity data is automatically acquired with the ILRIS 3D.

Data Resolution:

Varies

Number of Scans:

107

Control Data Filename:

NA

Planimetric Map Filename:

NA

Description of Final Datasets for Archive:

Original scans (unedited) in e57 format (Note: Some are not included in the final registration), transformation matrices for each scan, Registered point cloud in ASCII format. NOTE: A portion of the scans for the House of the Charioteers (those with the Charioteer_ suffix) were aqcuired from a lift boom to provide the necessary vantage points to aqcuire data for some of the structures' tall walls. However, as a result of the windy conditions during the survey and the subsequent movement of the scanner/lift boom, there is movement evidenced in several of the scans. The easiest way to spot this movement is to look for an unnatural ripple or wave pattern in the dataset. This pattern is not always constant and can appear to varying degrees within and between scans. Also, due to insufficient computing power at the time the data were processed, not all of the scans acquired for the House of the Charioteers was registered to one another. The scans that were not included in the final registered dataset have also been archived. Prior to registration 64 of the scans were edited to remove extraneous data. The edited scans were imported into Polyworks IMAlign (and gridded) and then registered. The transformation matrices from the edited scans were exported and are provided here with the original, unedited scans. The final registered point cloud has also been provided as a single ASCII file.