findWorldPointsInTracks

Find world points that correspond to point tracks

Syntax

pointIndices = findWorldPointsInTracks(wpSet,tracks)

[pointIndices,validIndex] = findWorldPointsInTracks(wpSet,tracks)

pointIds = findWorldPointsInTracks(wpSet,tracks)

[pointIds,validIndex] = findWorldPointsInTracks(wpSet,tracks)

Description

pointIndices = findWorldPointsInTracks(wpSet,tracks) finds the indices, pointIndices, of world points that correspond to the specified point tracks tracks.Use this syntax if you added points using the addWorldPoints function without specifying unique point identifiers pointIds.

[pointIndices,validIndex] = findWorldPointsInTracks(wpSet,tracks) additionally returns a vector that indicates whether each point track has a corresponding world point. Use this syntax if you added points using the addWorldPoints function without specifying unique point identifiers pointIds.

pointIds = findWorldPointsInTracks(wpSet,tracks) finds the point identifiers, pointIds, of world points that correspond to the specified point tracks tracks. Use this syntax if you added points using the addWorldPoints function by specifying unique point identifiers pointIds.

[pointIds,validIndex] = findWorldPointsInTracks(wpSet,tracks) additionally returns a vector that indicates whether each point track has a corresponding world point. Use this syntax if you added points using the addWorldPoints function by specifying unique point identifiers pointIds.

Examples

Find World Points in Tracks

Load precomputed world point set and image view set.

data = load(fullfile(toolboxdir('vision'),'visiondata','worldpointsetAndTracks.mat'));

Find point tracks across views.

tracks = findTracks(data.vSet);

Find 3-D world points corresponding to point tracks.

pointIndices = findWorldPointsInTracks(data.wpSet,tracks);

Input Arguments

wpSet — World point set

worldpointset object

World point set, specified as a worldpointset object.

tracks — Point tracks

M-element row vector of pointTrack objects

Point tracks, specified as an M-element row vector of pointTrack objects.

Output Arguments

pointIndices — World point indices

scalar | N-element vector of integers

World point indices, specified as a scalar or an N-element vector of integers. This input is valid when sequential indices are used for the points in the wpSet object.

pointIds — World point identifiers

M-element array vector of integers

World point identifiers, specified as an M-element vector of integers. M is the number of world points. This input is valid when points were added using addWorldPoints.

validIndex — Logical index

M-element logical vector

Logical index of point track correspondences, returned as an M-element logical vector. M is the number of point tracks in the tracks argument. A value of 1 (true) indicates that the associated point track has a corresponding world point, and a value of 0 (false) indicates that it does not.

Extended Capabilities

C/C++ Code Generation
Generate C and C++ code using MATLAB® Coder™.

Version History

Introduced in R2020b