F_VN_NonMaxSuppressionExp
Perform non-maximum suppression on given bounding boxes and corresponding scores. (expert function)
Syntax
Definition:
FUNCTION F_VN_NonMaxSuppressionExp : HRESULT
VAR_INPUT
ipBoundingBoxes : ITcVnContainer;
ipScores : ITcVnContainer;
ipDestIndcies : Reference To ITcVnContainer;
fScoreThreshold : REAL;
fOverlapThreshold : REAL;
ipClassIndcies : ITcVnContainer;
fEta : REAL;
nTopK : DINT;
hrPrev : HRESULT;
END_VARInputs
|
Name |
Type |
Description |
|---|---|---|
|
ipBoundingBoxes |
Container of bounding boxes to apply the non maximum supresion (ContainerType_Vector_TcVnRectangle_DINT) | |
|
ipScores |
Container of coreeponding score for each bounding box (ContainerType_Vector_REAL) | |
|
ipDestIndcies |
Reference To ITcVnContainer |
Container of the kept indcies after apply the non maximum suppression (ContainerType_Vector_DINT) |
|
fScoreThreshold |
REAL |
A threshold [0.0 to 1.0] used to filter the bounding boxes by score |
|
fOverlapThreshold |
REAL |
A threshold [0.0 to 1.0] that determines the minimum degree of intersection over union (IoU) required for bounding boxes to be considered overlapping |
|
ipClassIndcies |
Container of corresponding set of class indcies (ContainerType_Vector_DINT) | |
|
fEta |
REAL |
An adjustable threshold [0.0 to 1.0] used to dynamically reduce the overlap threshold during processing. Setting it to 1 maintains a constant value for the overlap threshold |
|
nTopK |
DINT |
The maximum number of bounding boxes with the highest scores to undergo the suppression algorithm (must be >= 0). Setting it to zero applies the algorithm to all bounding boxes |
|
hrPrev |
HRESULT indicating the result of previous operations (If SUCCEEDED(hrPrev) equals false, no operation is executed.) |
Required License
TC3 Vision Base
System Requirements
Development environment | Target platform | PLC libraries to include |
|---|---|---|
TwinCAT V3.1.4024.59 or later | PC or CX (x64) with PL50, e.g. Intel 4-core Atom CPU | Tc3_Vision |