| Spatio-temporal model | Present model |
|---|---|
| Object orientation | Orientation relative to the y-axis defined for equations (25, 26) |
| Object velocity | Vx |
| Object drift angle | tan−1[Ky/Kx] |
| Object spatial frequency | Kx/|cos(tan−1[Ky/Kx])| |
| Object temporal frequency | VxKx |
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