QASPERMAT

MATLAB functions for loading in session data for Gold Standard Phantom's QASPER phantom. The QASPER Pump Control software saves the logged data as a JSON file. The functions in this library provide a means to load this data into MATLAB for further analysis.

Requirements

• Requires the function jsonencode which was introduced in MATLAB R2016b
• Uses the class datetime which was introduced in MATLAB R2014b

Getting Started

To see how to use the functions it is recommended to look at example.m.

Functions:

• loadQasperSessionData: Loads the data from a supplied JSON file, handling conversion of base64 encoded streams and timestamps.
• convertQasperSerialDataNumber: Converts the timestamps in the QASPER session data to MATLAB format serial date numbers.
• extractQasperStreamAtTime: Returns QASPER session streams for given start time and duration, for example to get the samples for the interval when an image was acquired.
• friendlyQasperSessionStreamName: Provides 'friendly' names and units for each of the streams.
• getQasperSessionStreamIndex: Returns indices for stream names for accessing the QASPER session data structure returned by loadQasperSessionData

Changelog

[1.0.0] 04/12/2020

• Added examples.m demonstrating use of the library
• Function for loading in the data
• Function for converting python timestamps