meshroom.nodes.aliceVision.FeatureMatching.FeatureMatching
Category: Sparse Reconstruction
This node performs the matching of all features between the candidate image pairs.
It is performed in 2 steps:
1/ Photometric Matches
It performs the photometric matches between the set of features descriptors from the 2 input images. For each feature descriptor on the first image, it looks for the 2 closest descriptors in the second image and uses a relative threshold between them. This assumption kill features on repetitive structure but has proved to be a robust criterion.
2/ Geometric Filtering
It performs a geometric filtering of the photometric match candidates. It uses the features positions in the images to make a geometric filtering by using epipolar geometry in an outlier detection framework called RANSAC (RANdom SAmple Consensus). It randomly selects a small set of feature correspondences and compute the fundamental (or essential) matrix, then it checks the number of features that validates this model and iterate through the RANSAC framework.
Online
Inputs:
input (File)
featuresFolders (ListAttribute)
imagePairsList (File)
describerTypes (ChoiceParam)
photometricMatchingMethod (ChoiceParam)
geometricEstimator (ChoiceParam)
geometricFilterType (ChoiceParam)
distanceRatio (FloatParam)
maxIteration (IntParam)
geometricError (FloatParam)
knownPosesGeometricErrorMax (FloatParam)
minRequired2DMotion (FloatParam)
maxMatches (IntParam)
savePutativeMatches (BoolParam)
crossMatching (BoolParam)
guidedMatching (BoolParam)
matchFromKnownCameraPoses (BoolParam)
exportDebugFiles (BoolParam)
verboseLevel (ChoiceParam)
Outputs:
output (File)
- class meshroom.nodes.aliceVision.FeatureMatching.FeatureMatching
- __init__()
Methods
__init__()buildCommandLine(chunk)postUpdate(node)Method call after node's internal update on invalidation.
processChunk(chunk)stopProcess(chunk)update(node)Method call before node's internal update on invalidation.
upgradeAttributeValues(attrValues, fromVersion)Attributes
categorycgroupParsedcmdCorecmdMemcommandLinecommandLineRangecpudocumentationgpuinputsinternalFolderinternalInputsoutputspackageNamepackageVersionparallelizationramsize