Research map / 3D vision / Depth and stereo
Tracking Multiple Objects Outside the Line of Sight Using Speckle Imaging
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Measured effects reported in the paper
| What was changed | Where | Measured | Effect |
|---|---|---|---|
| Use speckle imaging and a diffuse wall as a virtual bare sensor to track a single hidden object | NLOS object tracking · NLOS single-object trajectories | tracking error: 4.5 µm, 9.5 µm | Helped |
| Add clustering to assign speckle shift vectors to individual objects | NLOS multi-object tracking · NLOS multiple-object trajectories | tracking error: 5.4 µm, 10.2 µm | Helped |
| Use PCA before clustering shifted speckle images | NLOS multi-object tracking · NLOS multi-object clustering | clustering robustness | Helped |
| Track multiple objects using an unlabeled motion histogram rather than assigning shift vectors to objects | Speckle-based multi-object tracking · Multiple independently moving objects | individual trajectory recovery | Hurt |
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