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Camera Calibration »
EstimateRealScale
Estimate the scale for points in the Z=0 plane in a perpendicular view.
Syntax
C++
C#
void avl::EstimateRealScale
(
const avl::Matrix& inCameraMatrix,
const avl::Position3D& inCameraPosition,
float& outUnitsPerPixel
)
void EstimateRealScale
(
Matrix inCameraMatrix,
Position3D inCameraPosition,
out float outUnitsPerPixel
)
Parameters
|
Name |
Type |
Default |
Description |
 |
inCameraMatrix |
const Matrix& |
|
Camera matrix obtained from calibration. |
|
inCameraPosition |
const Position3D& |
|
Camera position for which the scale is estimated. |
 |
outUnitsPerPixel |
float& |
|
Scale factor, or physical dimensions of 1 pixel in the world plane. |
Errors
| Error type |
Description |
| DomainError |
Invalid camera position (z=0) in EstimateRealScale. |
| DomainError |
Invalid camera matrix (must be 3x3) in EstimateRealScale. |
| DomainError |
Invalid camera matrix (Fx=0) in EstimateRealScale. |
