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Alexandra Branzan Albu

2 papers indexed

arxivcs.CV2026-07-13

NEEDL-Bench: Dataset for Swiss Needle Cast and Stomata Detection in Microscopy Images

Benjamin Blake, Declan McIntosh, Jürgen Ehlting, Nicolas Feau, Joey B. Tanney, Alexandra Branzan Albu

We present NEEDL-Bench, a microscopy detection benchmark for Swiss Needle Cast (SNC), a fungal disease of Douglas-fir trees. Douglas-fir is a keystone species of major ecological and economic importance as a softwood timber resource, and SNC affects productivity by forming sexual…

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arxivcs.CV2026-07-06

TubeLite: Lightweight Multi-Actor Spatio-Temporal Action Detection

Ali Soltaninezhad, Melissa Cote, Alejandro Rico Espinosa, Tunai Porto Marques, Alexandra Branzan Albu

Spatio-temporal action detection in videos requires jointly localizing actors in space and identifying action boundaries over time. A common challenge is constructing temporally stable action tubes, as frame-level detectors often suffer from jitter, fragmentation, and imprecise t…

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