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EMA smoothing added

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This commit is contained in:
Alexander Shabarshov 2026-05-11 17:50:35 +01:00
parent 5473bc9d09
commit 9d72ede1d2
1 changed files with 17 additions and 6 deletions
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23
CameraController.cs
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@ -20,10 +20,13 @@ public sealed class CameraController
private readonly int _lostFreezeFrames; private readonly int _lostFreezeFrames;
private readonly float _cameraEasing; private readonly float _cameraEasing;
// --- NEW: dropout tolerance --- // --- Dropout tolerance ---
private const int DropoutToleranceFrames = 20; // adjust as needed private const int DropoutToleranceFrames = 20;
private int _dropoutCounter; private int _dropoutCounter;
// --- NEW: EMA smoothing ---
private const float EmaFactor = 0.85f; // 0.85 = smooth but responsive
private int _lostFrames; private int _lostFrames;
private Point2f _cameraCenter; private Point2f _cameraCenter;
private TrackState _state; private TrackState _state;
@ -75,20 +78,18 @@ public sealed class CameraController
} }
// --------------------------------------------------------- // ---------------------------------------------------------
// NEW: dropout tolerance // Dropout tolerance
// --------------------------------------------------------- // ---------------------------------------------------------
if (!objectCenter.HasValue) if (!objectCenter.HasValue)
{ {
if (_dropoutCounter < DropoutToleranceFrames) if (_dropoutCounter < DropoutToleranceFrames)
{ {
// Treat as still tracked
objectCenter = _kalman.LastMeasurement; objectCenter = _kalman.LastMeasurement;
_dropoutCounter++; _dropoutCounter++;
} }
} }
else else
{ {
// Reset dropout counter when detection is present
_dropoutCounter = 0; _dropoutCounter = 0;
} }
@ -102,7 +103,7 @@ public sealed class CameraController
if (_lostFrames <= _lostFreezeFrames) if (_lostFrames <= _lostFreezeFrames)
{ {
_state = TrackState.LostFreeze; _state = TrackState.LostFreeze;
objectCenter = null; // Kalman predicts but camera won't move objectCenter = null;
} }
else else
{ {
@ -123,11 +124,21 @@ public sealed class CameraController
{ {
smoothedCenter = _kalman.Update(objectCenter); smoothedCenter = _kalman.Update(objectCenter);
// ---------------------------------------------------------
// NEW: EMA smoothing
// ---------------------------------------------------------
smoothedCenter = new Point2f(
smoothedCenter.X * (1 - EmaFactor) + _cameraCenter.X * EmaFactor,
smoothedCenter.Y * (1 - EmaFactor) + _cameraCenter.Y * EmaFactor
);
// fast easing
float fastEasing = 0.015f; float fastEasing = 0.015f;
_cameraCenter = new Point2f( _cameraCenter = new Point2f(
_cameraCenter.X + (smoothedCenter.X - _cameraCenter.X) * fastEasing, _cameraCenter.X + (smoothedCenter.X - _cameraCenter.X) * fastEasing,
_cameraCenter.Y + (smoothedCenter.Y - _cameraCenter.Y) * fastEasing); _cameraCenter.Y + (smoothedCenter.Y - _cameraCenter.Y) * fastEasing);
// configurable easing
_cameraCenter = new Point2f( _cameraCenter = new Point2f(
_cameraCenter.X + (smoothedCenter.X - _cameraCenter.X) * _cameraEasing, _cameraCenter.X + (smoothedCenter.X - _cameraCenter.X) * _cameraEasing,
_cameraCenter.Y + (smoothedCenter.Y - _cameraCenter.Y) * _cameraEasing); _cameraCenter.Y + (smoothedCenter.Y - _cameraCenter.Y) * _cameraEasing);