01 / OVER TIME
HAND SCALE / PENDULUM FIELD NOTES
A small movement.
A small movement.
A visible signal.
CAMERA 04 / LIVE OBSERVATION
The bell pendulum at the small-bird feeder. Follow its image, position and motion, one measured frame at a time.
Open camera screen ↗1280 × 720 tracking coordinates
02 / TOP VIEW · XZ
X →Around the reference.
Z ↑
mm
CURRENT X / Z —, — mmREFERENCE X / Z —, — mm
Top view XZ · positive Z points away from the camera.
03 / THRESHOLD RECORD
UTCWhen the bell moves.
- Events appear after an observed counter increase.
The source counter records triggers with a 2.5-second cooldown and restarts with the tracker. Its trigger can differ from the 3D amplitude threshold displayed here.
Image, motion,
observation.
- Position & reference
- The detected bell center, apparent radius and slowly adapting equilibrium reference remain in image pixels.
- Offset & velocity
- X / Y / Z movement is transmitted in millimeters and millimeters per second. Positive Z points away from the lens. The overhead diagram plots physical X against depth Z. Y remains in the readout as the vertical component.
- Fit & calibration
- Geometric fit is a matching score, not a probability or brightness reading. Samples at 15% or below are omitted from the traces. Z is inferred from apparent size; its accuracy requires a physical calibration test.