|Ben Cox||University College London|
|Janek Gröhl||German Cancer Research Center (DKFZ)|
|Lina Hacker||University of Cambridge|
Our overarching goal is to enable intercomparison of photoacoustic imaging (PAI) data between different users (scientific groups / industries). To achieve this goal the Data Acquisition and Management (DAM) theme is conducting work towards three main goals:
Goal 1 is to define an essential list of metadata to fully characterise the format of PAI data acquired from commercial and custom-built PAI instruments and to transfer the device-specific data of instruments within the consortium to an open access database. Goal 2 is to implement an open source tool that enables conversion to the prior agreed standardized data format (HDF5). Goal 3 is to provide an open-access platform for PA reference data that can be used for comparison of processing algorithms etc.
A table summarizing information on the technical specifications of all PAI systems that are used within the consortium has been created and three main recommendations have been made: (1) To initially only include raw time series data into the standardization, (2) To use HDF5 as the standardized file format, and (3) To create a standardized list of metadata parameters. Furthermore, the working group has formulated a plan to create an open source conversion tool between data formats.
Towards goal 1:
Consensus document: This document aims to define a comprehensive list of necessary parameters to fully characterise PAI data. IPASC consensus should be reached on:
Strategy document: This document aims to describe the steps necessary to set up a PA device database. IPASC consensus should be reached on:
(1) Definitions of the required terminology.
(2) A detailed description of the metadata parameters identified as being essential to characterize PA devices.
(3) Definition of the physical units and data format of the respective parameters.
(1) A device data collection strategy.
(2) A device data storage strategy (containing e.g. the database format).
(3) A tool to transfer the technical information of the PAI devices to the created database.
Towards goal 2:
Software tool: The software tool should be able to provide conversion functionality from multiple different proprietary formats to the agreed HDF5 format including all metadata. This entails:
(1) A requirement analysis: Collection of all requirements for the tool.
(2) Setup of a code repository: A repository that contains the implementation of the converters.
Towards goal 3:
Strategy document: This document aims to describe a strategy how to create an open access data repository for the reference data sets. IPASC consensus should be reached on:
(1) The ideal composition of a reference data set for comparison of processing algorithms.
(2) A hosting strategy (single data items; data sets; Application programming interface (API) access)
(3) A reporting strategy (referencing of raw data sets after processing; computed metrics)