SynScopeV - Signal/Video Visualization and Alignment Tool

Purpose

SynScopeV is an offline visualization and alignment tool for time-varying signals and videos. SynScopeV supports multiple signal sources that may differ in offset and/or sample rate, as well as multiple videos sources.

SynScopeV's main purpose is to support the interactive alignment of signals, and the alignment of signals with video footages.

SynScopeV offers resampling functionalities to merge aligned signals, as well as several options to export relations between signals and videos for further processing in other tools.

Details

SynScopeV allows to define reference points that correspond to identical events between source pairs. It then estimates the offset and resample rate to link these sources. I.e., it maps sample time from one source to the other via a link equation.

Sources include signals and videos. Reference points (links) can be freely defined between signals, between videos, and between signals and videos.

Source alignment can be inspected with (i) synchronous visualization or (ii) resampling.
(i) Synchronous visualization: linked sources (signals and videos) scroll together according to the link relation.
(ii) Resampling: linked signals are resampled to the highest sample rate and offset-compensated.

Resampled signals can be merged in a single file. Reference points and link relations can be exported for use in other programs.

A typical usage example is the inspection of data recorded from multiple sensors aquired on different systems, together with (optional) video footage.

Key features

• Multiple signal sources
• Multiple channels per sources
• Multiple, configurable, views of the sources
• Multiple video sources
• Navigation through signal waveform (scroll, zoom, etc.)
• Navigation through the videos
• Interactive specification of the reference points between source pairs
• Automatic estimation from the reference points of offset and resample factor between pairs of sources (source linking).
• Configurable activation of links between signal sources
• Synchronized visualization of linked sources; linked signals/videos scroll jointly according to the link equation
• Resampling of linked signals (builtin and with Matlab support)
• Merge and save resampled signals

License

GPL V.2

History

Version	Release date	Changes
1.0	23.03.2010	Added export of documentation video showing synchronized sensor signals and video sources (using ffmpeg)
0.91	03.09.2009	Support for signal files with 'NaN' values

Download

Version	Source	Windows binary
1.0	SynScopeV_1.0-src	SynScopeV_1.0-win
0.91	SynScopeV_0.91-src	SynScopeV_0.91-win

This project is hosted on gna.org. Pull the latest code directly from the SVN:

svn co svn://svn.gna.org/svn/dscope/trunk dscope

Contribute code directly via SVN by becoming a project member.