High Resolution Documentation of Rock Art Panel 11 on Petroglyph Trail

Object #:

Survey Date (start):

Mar 22, 2011

Survey Date (end):

Mar 23, 2011

Conditions:

Scanned at nighttime

Scanner Details:

Breuckmann SmartScan HE, serial number:2104, mm

Company Name:

Center for Advanced Spatial Technologies, University of Arkansas JBHT 304 Fayetteville, AR 72701; Angie Payne and Katie Simon

Turntable Used:

No

RGB Data Capture Information:

Yes. Internal color capture. The light from the scanner projector was used as the light source.

Data Resolution:

0.14999999999999999

Number of Scans:

26

Control Data Filename:

Planimetric Map Filename:

N

Description of Final Datasets for Archive:

Data were initially acquired using OptoCat software. Scan images (jpgs) were exported from OptoCat and processed using Adobe Photoshop. The strong vignette caused by using the projector as the principle light source was removed and all photos were color balanced as best as possible to one another. The new images were added back to the scans in OptoCat. From there, the 26 usable scans were imported into Rapidform XOR using the OptoCat Container (.ctr) format. In Rapidform, the data were merged into a single mesh file containing approximately 50 million polygons. The data were too large for additional mesh post-processing and were reduced 50%. Holes were filled on the reduced mesh. The original scans (prior to image editing), the registered dataset, and the final mesh dataset have been archived.

Dataset Name:

chaco_petro_GR.txt

Registration Method:

Individual scans were aligned during the scanning process using N point pairs alignment in the OptoCAT software. Once all scans were aligned, a global alignment was computed.

Registration Error:

0.023

# Points in File:

19,474,625

Dataset Name:

Point Editing Summary:

Overlap Reduction:

No

Smoothing:

No

Subsampling:

No

Color Editions:

No

Dataset Name:

chaco_petro_mesh.obj

Number Triangles:

28,500,229

Additional Processing Notes:

26 scans were merged using Rapidform XOR2. Data were reduced by 50% and then holefilled. No attempt was made to fill the holes along the vertical ledge in the data as there was not enough surrounding data to accurately fill the gaps.

Holes Filled:

Yes

Smoothing:

Yes

Color Editions:

Yes

Healing/Despiking:

Yes

RGB Color Included:

Yes

Data Reduction:

Yes

Adjustment Matrix:

NA

Mesh Name:

RGB Color:

No