Settings

Theme

We tested super-resolution pre-filter for LPR OCR. It did nothing

wink.co

8 points by xmichael909 2 months ago · 6 comments

Reader

xmichael909OP 2 months ago

Quick context: SR-as-a-pre-filter for ALPR gets a lot of attention right now there's a whole ICPR 2026 competition track on low-res plate recognition; so we actually testing it on our production lpr data.

  • mirsadm 2 months ago

    Have you tried classic CV SR algorithms (eg SR from multiple nearby frames)? Single frame SR seems unlikely to be useful.

    • xmichael909OP 2 months ago

      We tried that, wasn't a big lift to setup and tested. We used 1000 detections with at least 4 crops, and it made a bit of a difference but not much - our conclusion remains the same.

    • xmichael909OP 2 months ago

      No, that is a really great point. The ICPR competition the big winners were all about multi-frame. Will do some more experiments and update.

xnx 2 months ago

Not one image on the page?

  • xmichael909OP 2 months ago

    Yah we should probably add some back, we had examples but they were mostly meaningless to the human eye, but we'll try adding some "examples"

Keyboard Shortcuts

j
Next item
k
Previous item
o / Enter
Open selected item
?
Show this help
Esc
Close modal / clear selection