Preprint
Aug 2026
P3CA: Encoder-Agnostic Interpretation of Vision Foundation Model Embeddings via Spatial Probing
Position-prompted PCA (P3CA), an encoder-agnostic method for local probing of channel-rich spatial tensors, is proposed and implemented in EmbedVision, an interactive 3D Slicer-based workflow, and evaluated across natural images, colorectal pathology foundation-model embeddings, and spatial transcriptomic tensors.
A. Jamzad, Dilakshan Srikanthan, F. Akbarifar et al.
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