2022-03-07

Agenda

HTJ2K/JPEG-XL Performance Update
- DICOM WG-04 approved a work item for JPEG-XL back Nov/Dec 2021
  - Focus is on color images
    - Color images are typically encoded with a color transform
    - If you have raw pixel data, you don't know what it is or looks like on screen (exactly what color it represents)
    - JPEG2000 specifies the actual color transform being used - with a key or array, but J2K is very slow
    - JPEG-XL supports color transforms and is faster than JPEG2000
    - DICOM does allow the color transform to be encoded in DICOM (its actually required) - but its difficult for decoders to apply these and many apply something before hand messing it up
- HTJ2K work item delayed - because JPEG-XL got a performance boost
- https://docs.google.com/document/d/1gS3cc7p00M3_Ub-0AC7shm16H_FCC2IyxqE2TCjpzUI/edit?usp=sharing
SIIM Awards (Mohannad)
- https://siim.org/general/custom.asp?page=honorary_awards
3D Visualization of Multiple Sclerosis Lesion (Geoffrey)
- 3D Flair is the sequence radiologist use for MS
- 100 micron MRI Scan: https://histopath.nmr.mgh.harvard.edu/images/?page=images&selectionType=collection&selectionId=22