Estimated Value
Also known as: heuristic estimate, inferred value
An estimated value is a number derived from observable cues and encoded rules rather than from direct sensor measurement. This means a confident, grounded inference that is never presented as a measured fact.
When you submit a video without launch-monitor data, SwingVantage can still produce useful numbers — but they are estimates. Estimated values are computed from pose-estimation output, visual cues, and the heuristic engine's rule library. They carry a confidence score reflecting how much signal was available. The most important rule: an estimated value is always labeled 'Estimated' and is never shown in the same way as a measured value. This is a non-negotiable honesty rule.
An estimated value is still useful for coaching decisions. Use it for directional guidance (path too in-to-out, attack angle too steep). At the same time, understanding the exact number has an uncertainty range that is visible in the confidence interval.
When building a progress baseline from estimated values, use a rolling average across 5 or more sessions rather than a single session. This means this reduces random video-quality variation and produces a more stable estimate of your true average mechanical pattern.
Example
Without a launch monitor, SwingVantage shows: 'Estimated club path: +5° ± 3° (Confidence: 68/100 — inferred from video landmarks)' — clearly not a measured number.
Why it matters
Estimates are useful and honest. Estimates presented as measurements are harmful. The label exists so you always know which you have.
How it shows up on video
Estimated values in Motion Lab are shown with a dashed skeleton overlay and a yellow [E] badge. The dashed rendering is a visual reminder that the position is inferred from pose estimation rather than from a sensor, and small deviations from ground truth are expected and labeled.
Common mistakes
- Dismissing estimated values entirely because they are not measured — estimates from high-quality video with high confidence scores are accurate enough for all coaching-relevant decisions.
- Acting on a small change in an estimated value without checking whether the change is within the stated confidence interval. This means the interval tells you whether the change is meaningful or within estimation noise.
- Not accounting for video quality differences between sessions when comparing estimated values. This means a session recorded in poor lighting will produce estimates with wider uncertainty intervals than a well-lit session. This makes session-to-session comparisons less reliable.
- Reporting estimated values in the same format as measured values when sharing data — always preserve the [E] label when exporting or discussing estimated metrics.
In SwingVantage Motion Lab
In Motion Lab, every estimated metric shows its confidence interval alongside the point estimate — for example, "Club Path: +4.8° ± 2.1° [Estimated]". The interval is not decorative. It defines the range within which the true value likely falls and should inform how much weight you place on small changes.
Related terms
- Measured ValueA measured value is a number that came from a real sensor or instrument. This means a launch monitor, radar gun, or wearable. This means and was not inferred or estimated from video or rules.
- Heuristic DataHeuristic data is information read through encoded expert rules of thumb to surface the most likely pattern quickly and reliably. This means a confident estimate, not a measured result.
- Data Source LabelA Data Source Label is the badge shown alongside every metric in SwingVantage that identifies where that data came from. This means Measured, Estimated, AI Interpreted, Placeholder, or Real. This means. As a result, you always know how to weight it.
- Confidence ScoreA confidence score is a 0–100 calibration of how much to trust a finding, scaled by sample size, shot-to-shot consistency, and how complete your inputs were.
- Evidence LabelAn evidence label separates what SwingVantage measured (a sensor or launch-monitor number) from what it estimated (an inferred likely pattern). As a result, an estimate is never presented as a lab measurement.
Put this into your swing
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