{ Recent Developments in Tangra 3 and the ADV File Format Hristo Pavlov IOTA Meeting 2014, College Park, MD, 13 July 2014.

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Astronomical Digital Video System (ADVS)

Presentation transcript:

{ Recent Developments in Tangra 3 and the ADV File Format Hristo Pavlov IOTA Meeting 2014, College Park, MD, 13 July 2014

New Video File Formats ADV ADV AAV AAV Astronomical Digital Video with ADVS Astronomical Analogue Video with OccuRec

ADV – The Open File Format of ADVS HEADER DATA SECTIONS DEFINITION SYSTEM METADATA TABLE DATA BLOCKS INDEX TABLE USER METADATA TABLE IMAGE (BAND2) IMAGE (BAND3) IMAGE (BAND1) METADATA FITS IMAGE (BAND1) IMAGE (BAND2) IMAGE (BAND3) METADATA ADV IMAGE (BAND1) STREAM1 (IMAGES/BAND1) FRAME1 IMAGE (BAND1) FRAME2 FRAME3 FRAME4 FRAME N METADATA STREAM2 (STATUS DATA/BAND2) METADATA INDEX (FAST ACCESS) IMAGE (BAND3) FRAME N IMAGE (BAND3) FRAME4 FRAME3 FRAME2 FRAME1 Astro Digital Video (ADV) File Structure

Typical Non-Image Data Stored in ADV

ADV version 2 and AdvLib New ADV version 2 being developed New ADV version 2 being developed - Lagarith16 lossless compression - More powerful and extensible - Larger development group Open source C++ and C# libraries available to record in ADV format Open source C++ and C# libraries available to record in ADV format ADV (ver1) Already used by other software ADV (ver1) Already used by other software - Genika Trigger - Holenstein’s High Speed Video Recorder

AAV Files and OccuRec

New Tangra 3 Features IOTA-VTI Timestamp OCR-ing IOTA-VTI Timestamp OCR-ing New Tracking Engine New Tracking Engine Display Mode Enhancements Display Mode Enhancements Integration with Occult’s AOTA and OccultWatcher Integration with Occult’s AOTA and OccultWatcher Mutual Events Reduction Mutual Events Reduction ‘Overlapping’ Objects PSF Fitting ‘Overlapping’ Objects PSF Fitting 3D Polynomial Background Support 3D Polynomial Background Support Display of Instrumental Stellar Magnitudes on the Light Curves Display of Instrumental Stellar Magnitudes on the Light Curves

Reading IOTA-VTI Timestamp Background must not be too bright Background must not be too bright All fields and frames must be present All fields and frames must be present

New Tracking Algorithm

Display ‘Modes’

Display Gamma

AOTA Integration

OccultWatcher Integration C:\Videos\OccVideo.avi C:\Videos\OccVideo_AOTA_Event#1.jpg C:\Videos\OccVideo_AOTA_Xcorr.jpg C:\Videos\OccVideo.trep.xml

Mutual Events Reduction New “Measurement Type” New “Measurement Type” Need to specify Occultation or Eclipse Need to specify Occultation or Eclipse

Video Modelling

Close Targets Overlapping PSF Fitting

3D Polynomial Background 1-st Order 2-nd Order 3-rd Order

‘Background Glow’ Display Mode

Separated and Combined Measurements

Instrumental Stellar Magnitude Scale

Tangra is Open Source & Cross Platform Project Managed on GitHub Project Managed on GitHub Open Source for Contributors and Researchers Open Source for Contributors and Researchers Sciencewere License (Similar to OrbFit) Sciencewere License (Similar to OrbFit) Cross-Platform on Windows, Linux and Mac OSX (Using C++ and the Mono Framework) Cross-Platform on Windows, Linux and Mac OSX (Using C++ and the Mono Framework)

Questions?