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We tested super-resolution pre-filter for LPR OCR. It did nothing (wink.co)
8 points by xmichael909 37 days ago
2 comments
xmichael909 37 days 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.
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mirsadm 37 days ago
Have you tried classic CV SR algorithms (eg SR from multiple nearby frames)? Single frame SR seems unlikely to be useful.
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xmichael909 36 days 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.
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xmichael909 36 days 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.
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xnx 37 days ago
Not one image on the page?
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xmichael909 36 days 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"
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