Las format definition
This is the .las format to be introduced in SURE 2.0.
SURE is able to read data up to LAS Version 1.3 and will write pointcloud data in LAS Version 1.2
|X||long||32 bit||X coordinate|
|Y||long||32 bit||Y coordinate|
|Z||long||32 bit||Z coordinate|
|Point Source ID||unsigned short||16 bit||Base image from matching|
|Red||unsigned short||16 bit||Red color channel|
|Green||unsigned short||16 bit||Green color channel|
|Blue||unsigned short||16 bit||Blue color channel|
|Intensity||unsigned short||16 bit||Alpha color channel|
|Number of returns||3 bit|
For the dense matching the number of returns is equivalent to the number of stereo models. Maximum value of 7 means seven or more.
SURE makes the assumption that after a given number of stereo models (5 to 7), the sample's accuracy does not increase, for that reason we clamp the number of returns to 7
|Classification||unsigned char||8 bit||0 unclassified - 12 overlap points|
|UserData||unsigned char||8 bit||Accuracy ( to be determined)|