Add NMS iou threshold configurable parameter

[jaegukhyun]

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# Copyright (C) 2024 Intel Corporation
# SPDX-License-Identifier: Apache-2.0

[sovrasov]

Are detectors so sensitive to IoU in NMS? We shouldn't apply any default value tricks, since it all is visible in the UI.
My initial thought was to bind 0.5 default value for all detectors and tilers, conduct a couple experiments, and call it a day. Unfortunately, that's a sacrifice we're making because of the imperfect Geti configuration system, which doesn't support per model tuning for default params.

If that's not possible (the detectors are too sensitive, we could think of changing the tiling threshold only)

[eugene123tw]

Are detectors so sensitive to IoU in NMS? We shouldn't apply any default value tricks, since it all is visible in the UI. My initial thought was to bind 0.5 default value for all detectors and tilers, conduct a couple experiments, and call it a day. Unfortunately, that's a sacrifice we're making because of the imperfect Geti configuration system, which doesn't support per model tuning for default params.

If that's not possible (the detectors are too sensitive, we could think of changing the tiling threshold only)

@jaegukhyun Based on the experiment: https://intel-my.sharepoint.com/:x:/p/eugene_liu/EWr2Xk17brBDgqZO62qlgSIBNNugJIalJZTWQJYqmaNiVg?e=SgQqpe

Let's change the default NMS IoU threshold to 0.5, what do you think?

[eugene123tw]

Only some minor comments

[eugene123tw]

Thanks Jaeguk!