Quantitative analysis of parathyroid autofluorescence from near-infrared (NIR) video recordings.
Extract emission intensity curves over time and transform subjective visual scoring into objective, reproducible measurements.
Built for NIR autofluorescence research.
ParaGlow
Near-Infrared Autofluorescence Research
Quantify parathyroid autofluorescence over time.
Extract emission curves from NIR videos and transform
subjective scoring into an objective and reproducible score.
λ
Customizable OCR Engine
1/s
Customizable Frame Rate
ƒ
ICG Curve Time-intensity extraction
Get started
1
Drop your video
MP4, MOV, AVI, MKV and more.
2
Select the number region
Draw a rectangle around the on-screen number.
3
Done
Charts, statistics, and export — all automatic.
Drop video or click
MP4, MOV, AVI, MKV, WebM...
Uploading and analyzing...
Step 1 of 2
Select the number region
Draw a rectangle over the area where the fluorescence number is displayed.
ParaGlow will use this region to read values via OCR on every extracted frame.
Extracting first frame...
X1: -%
Y1: -%
X2: -%
Y2: -%
Step 2 of 2
Extraction Parameters
Configure how ParaGlow processes the video before starting the analysis.
Frame Interval
How often a frame is captured from the video. Lower values give more data points but take longer to process.
seconds
OCR Engine
Choose which engine processes the video frames. Dual mode runs both and shows a concordance rate.
Selected Region
The area of each frame where OCR will look for the number. Go back to adjust.
X1
-%
Y1
-%
X2
-%
Y2
-%
Analysis Complete
Results
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Duration
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Frames
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Peak
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Average
Scroll down for detailed charts and data
Dashboard
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File
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⏲
Duration
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▦
Frames
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✓
Detected
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Minimum
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Maximum
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Average
Detection Pipeline
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OCR Engine
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Temporal Correction
Engine Concordance
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Apple Vision
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EasyOCR
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Concordance
Moving Average
i
The window is the number of seconds used to calculate each average point. A larger window smooths out noise and shows the overall trend more clearly; a smaller window stays closer to the raw data. For example, "5s" means each point on the curve is the average of the surrounding 5 seconds of readings.
