dtwBridgePlot

Bridge Plot of point-to-point mapping of DTW

Contents

Syntax

Description

dtwBridgePlot(vec1, vec2, dtwPath) plots the point-to-point mapping of DTW between vec1 and vec2.

dtwBridgePlot(vec1, vec2, dtwPath, viewType) uses the specified view type to do plotting:

• viewType='2d' for 2D view of the bridge plot (This is the default.)
• viewType='3d' for 3D view of the bridge plot

Example

2D view of the bridge plot

vec1=[71 73 75 80 80 80 78 76 75 73 71 71 71 73 75 76 76 68 76 76 75 73 71 70 70 69 68 68 72 74 78 79 80 80 78];
vec2=[69 69 73 75 79 80 79 78 76 73 72 71 70 70 69 69 69 71 73 75 76 76 76 76 76 75 73 71 70 70 71 73 75 80 80 80 78];
dtwOpt=dtwOptSet;
dtwOpt.type=1;
[minDist1, dtwPath1, dtwTable1] = dtw(vec1, vec2, dtwOpt);
dtwOpt.type=2;
[minDist2, dtwPath2, dtwTable2] = dtw(vec1, vec2, dtwOpt);
subplot(2,1,1); dtwBridgePlot(vec1, vec2, dtwPath1, '2d'); title('Alignment by type-1 DTW');
subplot(2,1,2); dtwBridgePlot(vec1, vec2, dtwPath2, '2d'); title('Alignment by type-2 DTW');

3D view of the bridge plot

figure;
subplot(2,1,1); dtwBridgePlot(vec1, vec2, dtwPath1, '3d'); title('Alignment by type-1 DTW'); view(-10, 70);
subplot(2,1,2); dtwBridgePlot(vec1, vec2, dtwPath2, '3d'); title('Alignment by type-2 DTW'); view(-10, 70);

See Also

dtwBridgePlot, dtw1, dtw2, dtw3.

Published with MATLAB® R2018a