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-rw-r--r--src/argaze/ArUcoMarkers/ArUcoTracker.py4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/argaze/ArUcoMarkers/ArUcoTracker.py b/src/argaze/ArUcoMarkers/ArUcoTracker.py
index 07c15d0..37c567e 100644
--- a/src/argaze/ArUcoMarkers/ArUcoTracker.py
+++ b/src/argaze/ArUcoMarkers/ArUcoTracker.py
@@ -173,6 +173,10 @@ class ArUcoTracker():
marker.translation = markers_tvecs[i][0]
marker.rotation, _ = cv.Rodrigues(markers_rvecs[i][0])
marker.points = markers_points.reshape(4, 3)
+ else:
+ marker.translation = numpy.empty([0])
+ marker.rotation = numpy.empty([0])
+ marker.points = numpy.empty([0])
self.__tracked_markers[marker_id] = marker