Show HN: Streaming gigabyte medical images from S3 without downloading them

How does this compare to things like COGs (Cloud Optimised GeoTIFFs) or other binary blob + index raster pyramid formats?

Was there a requirement to work with these formats directly without converting?

Seems very similar to how maps work on the web these days, in particular protomap files [0]. I wonder if you could view the medical images in leaflet or another frontend map library with the addition of a shim layer? Cool work!

0: https://protomaps.com/

https://dicom.nema.org/dicom/dicomwsi/

Interesting guide to the Whole Slide Images (WSI) format. The surprising thing for me is that compression is used, and they note does not affect use in diagnostics.

Back in the day we used TIFF for a similar application (X-ray detector images).

This is really a job for JPEG-XL, which supports decode of portions of larger images and has recently been added to the DICOM standard.

Interesting - I'm not so familiar with S3 but I wonder if this would work for WSI stored on-premises. Imposing lower network requirememts and a lightweight web viewer is very advantageous in this use case. I'll have to try it out!

How does this handle images with different compression formats?

hey, I need this