Title

Yambuk LiDAR 

 

Time period

2022-08-172022-08-17 

 

Horizontal Accuracy

0.3m  

Vertical Accuracy

0.1m  

Code

MGA Zone 54 GDA2020 

 

 

Title

LAZ 1.4 (Compressed LAS) 

 

 

Topic category

• Elevation

 

Use limitation

General 

Classification

Unclassified  

 

Description

1)Real time coverage in field 2)Data download from field 3)Coverage check to see if refly planning if required 4)GNSS-IMU processing sbet 5)Extracting full wave form data and geo-referencing 6)Filtering for ground 7)Flight line matching 8)Tiling 8)Relative adjustments 9)LiDAR points classification 10)Absolute adjustment vs control 11)Generating deliverables DEM / DSM /DHM using natural neighbour interpolation 12)Georeferencing imagery using the precise flight trajectory from GNSS-IMU post-processing; 13)Automatic measurement of tie points between the images and combined block adjustment; 14)Classify the autocorrelated point cloud and extract the ground point; 15)Generate the Ortho images in OrthoMaster; 6)Adjusting colour balance and generating the mosaic in Inpho's Orthovista software; 16)Accuracy and Color sample confirming; 17)Processing the mosaic in SeamEditor and Adobe Photoshop software. 18)QC the mosaic data after producing; 19)Output product in MGA projection; 20)QA the finished product; 

 

Classification

Unclassified  

 

Attribute Quality

Positional Accuracy

Conceptual Consistency

Comments

ICSM Level 2+ classification was applied and the data files include RGB imagery point colourisation on all tiles. 

Missing Data

Comments

The LiDAR files are full data tiles (no null space) and the extent and coverage is common with the other datasets in this project. 

Excess Data

 

Platform Type

Aerial  

Assembly

Single  

Tile Size

1 km  

 

 

Scan Rate (Hz)

0Hz  

Scan Frequency (kHz)

0kHz  

Footprint Size (m)

0.25m  

Point Density Actual (pts/m2)

8points/m2  

Point Spacing Actual (pts/m)

0.34999999points/m2  

Ellipsoid Provided

1 

Ellipsoid Vertical Datum

GRS80 Ellipsoidal (ITRF2008)  

Ellipsoid Format

LAZ 1.4 (Compressed LAS)  

Geoid Vertical Datum

AUSGEOID2020  

Additional Adjustments

The survey was adjusted to State Survey Control Marks supplied by the Surveyor General of Victoria 

Environmental Conditions

LiDAR was captured under standard conditions suited for LiDAR survey with requirements for concurrent aerial photography being a secondary consideration. 

Tidal Conditions

Not Applicable to this block (or within +/- 2hrs of low tide if a coastal blocks) 

Class Level

2 

Classification

Class Level	Class 0 - Unclassified	Class 1 - Default	Class 2 - Ground	Class 3 - Low Vegetation	Class 4 - Medium Vegetation	Class 5 - High Vegetation	Class 6 - Buildings/Structures	Class 7 - Low/High Points	Class 8 - Model Key Points	Class 9- Water	Class 10 - Bridge	Class 12 - Flightline Overlap Points
2	0	1	1	1	1	1	1	1	0	1	1	0