1.
OPEN BACKSCATTER TOOLCHAIN (OPENBST) PROJECT
TOWARDS AN OPEN-SOURCE AND METADATA-RICH MODULAR IMPLEMENTATION
G. MASETTI, J.-M. AUGUSTIN, M. MALIK, C. PONCELET, X. LURTON, L. MAYER, G. RICE, M. SMITH
V1

2.
Raw Data File
Caris SIPS
QPS FMGT
Ifremer SonarScope
Beams
Pings
Pings
Pings
Beams
Beams
Reflectivity[dB]

3.
Nr.ofNoData
Reflectivity[dB]
Average Initial Reflectivity per Beam NoData Values for Initial Reflectivity per Beam
Beams Beams

4.
Reflectivity[dB]
Average Initial Reflectivity per Beam NoData Values for Initial Reflectivity per Beam
Beams
Nr.ofValidData
Histogram of Initial Reflectivity per Beam
Reflectivity [dB]

5.
RAW
MOS
Raw Data
Decoding
Geo
Referencing
Radiometric
Corrections
GEO
BS
ARA
Angle Dep.
Removal
Mosaicking

6.
RAW
MOS
Raw Data
Decoding
Geo
Referencing
Radiometric
Corrections
GEO
BS
ARA
Angle Dep.
Removal
Mosaicking

7.
A SHIFT IS REQUIRED FROM THE EXISTING CLOSED-SOURCE APPROACH

8.
A SHIFT IS REQUIRED FROM THE EXISTING CLOSED-SOURCE APPROACH
AN OPEN-SOURCE AND METADATA-RICH
MODULAR IMPLEMENTATION

9.
A SHIFT IS REQUIRED FROM THE EXISTING CLOSED-SOURCE APPROACH
AN OPEN-SOURCE AND METADATA-RICH
MODULAR IMPLEMENTATION
NOT COMPETING WITH COMMERCIAL SOLUTIONS, BUT
A SET OF COMMUNITY-VETTED, REFERENCE ALGORITHMS

10.
KEY COMPONENTS
1. EXTENSIBLE SOUNDER FORMAT (XSF)
2. PROCESSING TOOLCHAIN
3. PRODUCTS WITH PROCESSING METADATA

11.
EXTENDS
SONAR-NETCDF4
FOLLOWS CF METADATA CONVENTIONS

12.
RAW
MOS
Raw Data
Decoding
Geo
Referencing
Radiometric
Corrections
GEO
BS
ARA
Angle Dep.
Removal
Mosaicking
• OpenBST v. 0.1.0
• RawDecoding
• perbeam_bs_from_snippets_using_median
PROCESSING METADATA

13.
GITHUB
+
PYDRO 2019

14.
THANKS!
You can contact us at: openbst@hydroffice.org