Semi-Automated Optical Heartbeat Analysis
Features
Platform
|
SOHA (Original Version) |
SOHA Version 3 |
Requires MatLab |
|
|
Stand alone |
|
|
Analyzable Files
|
SOHA (Original Version) |
SOHA Version 3 |
Black & White *.avi files |
|
|
*.cxd files (HCImage) |
|
|
Timing
|
SOHA (Original Version) |
SOHA Version 3 |
Based on average fps (.avi files) |
|
|
Based on each frame's time stamp (.cxd files) |
|
|
Noise Reduction
|
SOHA (Original Version) |
SOHA Version 3 |
Threshold setting |
|
|
High and low pass filters for average darkness algorithm |
|
|
High and low pass filters for pixel-by-pixel algorithm |
|
|
Selectable ROI eliminates non-cardiac tissue from analysis |
|
|
Interval Identification
|
SOHA (Original Version) |
SOHA Version 3 |
Automatic, modifiable by average darkness algorithm |
|
|
Ability to correct individual intervals if needed |
|
|
Adjustable threshold for ignoring periods of no movement (minimum interval) |
|
|
New Phase Analysis
|
SOHA (Original Version) |
SOHA Version 3 |
Systolic interval precisely parsed into contraction and relaxation phases |
|
|
Diameter Measurements
|
SOHA (Original Version) |
SOHA Version 3 |
Two set of vertical measurements |
|
|
Selectable vertical and horizontal measurements |
|
|
.avi Movie Output with Movement Highlighted
|
SOHA (Original Version) |
SOHA Version 3 |
.avi movies to .avi output |
|
|
.cxd files to .avi output |
|
|
Adjustable movement threshold (0-100%) |
|
|
New Output
|
SOHA (Original Version) |
SOHA Version 3 |
Contraction Phase |
|
|
Relaxation Phase |
|
|
Isometric Phase |
|
|
Automatic Detection of Unusually Long Intervals |
|
|