How can I pass ground truth objects with differing label sets to "objectDet?ectorTrain?ingData"?

weqd asked: 2023-05-18 truth , label , computer , Robotics and Autonomous Systems , Ground Truth Labeling

Learn how to train your object detector in MATLAB with varying label sets This resource guides you through passing ground truth objects to objectDetectorTra...

Expert Answer

Neeta Dsouza answered . 2025-07-15 10:55:35

The ability to pass ground truth objects with differing label sets to "objectDetectorTrainingData" is currently not supported. However, a workaround would be to merge all the ground truth objects in the array into a single ground truth object and passing this result to the function call.

To do this, you need to horizontally concatenate all the "LabelData" tables into a single table, vertically concatenate all the "LabelDefinitions" tables into a single table, and use these results to construct a new ground truth object via the "groundTruth" function.

Note: Some additional processing may be necessary to account for labels used by multiple ground truth objects.

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