How to use NMS¶
If your model makes some overlapped duplicate BBs, you can use the built-in NMS operation to remove all the duplicate
BBs. To do so, select the BBSpredicted, RightClick on the column header,
hover over Derive virtual column
, and select Non-maximum suppression (NMS)
.
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A set of virtual columns are created as shown in the orange box in the figure below. One of them is the BBs column named BBS_predicted_NMS0.25. Other columns are just associated attributes of the new set of BBs.
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The 0.25
in the BBs column name represents the IOU threshold applied to derive the NMS-processed BBs. You can adjust
the IOU threshold under Tweak virtual column
of this NMS-processed BBs column.
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This new BBs virtual column can be used as if they are the predicted BBs for any operations such as converting these BBs to ground truth.