F_VN_MatchDescriptorsFlannLsh

F_VN_MatchDescriptorsFlannLsh 1:

Match descriptors using a FLANN based approach with LSH index.

Syntax

Definition:

FUNCTION F_VN_MatchDescriptorsFlannLsh : HRESULT
VAR_INPUT
    ipQueryDescriptors : ITcVnImage;
    ipTrainDescriptors : ITcVnImage;
    ipMatches          : Reference To ITcVnContainer;
    hrPrev             : HRESULT;
END_VAR

F_VN_MatchDescriptorsFlannLsh 2: Inputs

Name

Type

Description

ipQueryDescriptors

ITcVnImage

Query descriptors (i.e. descriptors of a reference/template image)

ipTrainDescriptors

ITcVnImage

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_TcVnDMatch; Non-zero interface pointers are reused.)

hrPrev

HRESULT

HRESULT indicating the result of previous operations (If SUCCEEDED(hrPrev) equals false, no operation is executed.)

F_VN_MatchDescriptorsFlannLsh 3: Return value

HRESULT

Further information

F_VN_MatchDescriptorsFlannLsh 4:

Number of matches

For reasons related to the method, the number of matches can vary from call to call with this function.

Required 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