Title

bearii_2020nov17 

Time period

2020-11-172020-11-17 

Horizontal Accuracy

0.2m  

Code

MGA Zone 55 GDA2020 

Title

ECW,TIFF 

Topic category

• Imagery base maps earth cover

Use limitation

General 

Classification

Unclassified  

Description

Aerial Triangulation -Initial EO configuration based on boresight-corrected airborne GPS-IMU data from the airborne GPS-IMU unit post-processed in Novatel Inertial Explorer using the nearest ARGN CORS station. -Initial EO error residual estimates were input based on the quality of the GPS-IMU solution output from Novatel Inertial Explorer. -Validation of differential GPS-IMU solution using nearest ARGN CORS station data by comparison with Inertial Explorer's precise-point-positioning (PPP) solution that utilises precise satellite orbit and clock information. -Confirmation that initial EO error residual estimates are valid. -Automated tie point matching with interactive filtering based on maximum parallax, minimum correlation and maximum search window. -Manual refinement of block adjustment with manual tie point review and exclusion. -Final block adjustment with any GCPs included as control and visual review of final solution. Orthophoto Production -Bi-directional Reflectance Distribution Function (BRDF) algorithm on a flightline by flightline basis prior to orthophoto production. -Stereoscopically derived DEM (typically at 4 times image resolution) for orthophoto processing after a review of the completeness and accuracy of the generated DEM. -Individual orthophotos were generated with the (minimum) outer 10% of the image removed. -Photomod Geomosaic for the production of a seamless orthophoto mosaic from the individual orthophotos. -Colour and contrast balance across the mosaic. 

Classification

Unclassified  

Attribute Quality

Positional Accuracy

Conceptual Consistency

Comments

3 band imagery meets expected band naming and combination expectations 

Missing Data

Comments

Imagery is complete for specified township area. 

Excess Data

Platform Type

Aerial  

Assembly

Mosaic  

Tile Size

1 km  

Raster Type

Aerial Photo  

X Pixel Resolution (cm)

10cm  

Y Pixel Resolution (cm)

10cm  

Seamlessness

Full  

Number of Bands

3 

Band List

1,2,3  

Resampling Kernel

Unknown  

Rectification Type

Orthorectified  

Platform Name

Fixed Wing Aircraft