F_VN_MatchDescriptorsKnnFlannLsh
Match descriptors (k nearest neighbors) using a FLANN based approach with LSH index.
Syntax
Definition:
FUNCTION F_VN_MatchDescriptorsKnnFlannLsh : HRESULT
VAR_INPUT
ipQueryDescriptors : ITcVnImage;
ipTrainDescriptors : ITcVnImage;
ipMatches : Reference To ITcVnContainer;
nK : UDINT;
hrPrev : HRESULT;
END_VAR
Inputs
|
Name |
Type |
Description |
|---|---|---|
|
ipQueryDescriptors |
Query descriptors (i.e. descriptors of a reference/template image) | |
|
ipTrainDescriptors |
Training descriptors (i.e. descriptors of a source/input image) | |
|
ipMatches |
Reference To ITcVnContainer |
Returns a container which is filled with the descriptor matches (ContainerType_Vector_Vector_TcVnDMatch; Non-zero interface pointers are reused.) |
|
nK |
UDINT |
Number of required best train matches for each query descriptor (i.e. nk := 2) |
|
hrPrev |
HRESULT indicating the result of previous operations (If SUCCEEDED(hrPrev) equals false, no operation is executed.) |
Return valueRequired License
TC3 Vision Matching
System Requirements
Development environment | Target platform | PLC libraries to include |
|---|---|---|
TwinCAT V3.1.4024.54 or later | PC or CX (x64) with PL50, e.g. Intel 4-core Atom CPU | Tc3_Vision |