YML files containing the solved extrinsic orientation (EO) from Step C in the Camera Calibration procedures outlined in Bruder and Brodie (2020) for both survey dates (20210918 and 20211006).
(Source: USGS)
- x
- camera X-coordinate, Easting in NAD83(2011)/UTM Zone 18N of camera position.
(Source: U.S. Geological Survey)
| Range of values |
|---|
| Minimum: | 456526.3051 |
|---|
| Maximum: | 456527.2849 |
|---|
| Units: | meters |
|---|
- y
- camera Y-coordinate, Northing in NAD83(2011)/UTM Zone 18N of camera position.
(Source: U.S. Geological Survey)
| Range of values |
|---|
| Minimum: | 3948251.6339 |
|---|
| Maximum: | 3948251.7429 |
|---|
| Units: | meters |
|---|
- z
- camera Z-coordinate, elevation referenced to NAVD88 in meters of GEOID12B.
(Source: U.S. Geological Survey)
| Range of values |
|---|
| Minimum: | 13.8440 |
|---|
| Maximum: | 13.8555 |
|---|
| Units: | meters |
|---|
- azimuth
- The horizontal direction the camera is pointing and positive clockwise (CW) from World Y Axis.
(Source: Bruder and Brodie (2020))
| Range of values |
|---|
| Minimum: | 46.0519 |
|---|
| Maximum: | 47.3163 |
|---|
| Units: | Angle units in degrees |
|---|
- tilt
- The up/down tilt of the camera. 0 is the camera looking nadir, 90 is the camera looking at the horizon right side up, and 180 is looking directly up.
(Source: Bruder and Brodie (2020))
| Range of values |
|---|
| Minimum: | 61.6874 |
|---|
| Maximum: | 63.3029 |
|---|
| Units: | Angle units in degrees |
|---|
- roll
- The rotation around a horizontal axis going through the length of the lens of the camera. 0 degrees is a horizontal flat camera. Looking from behind the camera, counterclockwise (CCW) rotation of the camera would result in a positive roll.
(Source: Bruder and Brodie (2020))
| Range of values |
|---|
| Minimum: | 2.6738 |
|---|
| Maximum: | 3.3757 |
|---|
| Units: | Angle units in degrees |
|---|
Entity_and_Attribute_Overview:
There are a total of 19 intrinsic orientation (IO) JPEG images. The filename for each IO image is formatted as "dunex_c2_20210914_IO_##", where the number (##) is the original photo ID. There are two extrinsic orientation (EO) JPEG images per GCP survey (dunex_c2_20210918_GCP_image_raw.jpg, dunex_c2_20210918_GCP_image_annotated.jpg, dunex_c2_20211006_GCP_image_raw.jpg, dunex_c2_20211006_GCP_image_annotated.jpg). These images have EXIF and other imagery header information encoded within each file, see the process steps for more information.
Entity_and_Attribute_Detail_Citation:
The entity and attribute information were generated by the individual and/or agency identified as the originator of the dataset. Please review the rest of the metadata record for additional details and information.
Entity_and_Attribute_Overview:
To place the photos taken by the CoastCam into real world coordinates and to rectify them into a planar view, objects within the field of view of the camera must be located. The elevation and position of the lenses in the CoastCam setup were estimated by surveying the legs of the camera tower with RTK GPS, and computing the mean horizontal position and mean elevation, and adding the tower height. The CoastCam took pictures of the position of each target within the camera view. The '_EO' zip folders each contain the GCP CSV file, the resultant EO parameters in a YML file, and 'raw' and 'annotated' images showing all the GCPs. The CSV files (dunex_c2_20210918_EO_GCPsurvey.csv and dunex_c2_20211006_EO_GCPsurvey.csv) with all the measurements were populated and GCP numbers were hand labeled on the annotated images (dunex_c2_20210918_GCP_image_annotated.jpg and dunex_c2_20211006_GCP_image_annotated.jpg) so that the targets could be labeled correctly in Step B of the Camera Calibration steps in Bruder and Brodie (2020). There are a total of 4 JPEGs. Images have EXIF and other imagery header information encoded within each file, see the process steps for more information.
Entity_and_Attribute_Detail_Citation:
The entity and attribute information were generated by the individual and/or agency identified as the originator of the dataset. Please review the rest of the metadata record for additional details and information.
