VISTA: Validation-Guided Integration of Spatial and Temporal Foundation Models with Anatomical Decoding for Rare-Pathology VCE Event Detection. - Bo-Cheng Qiu; Yu-Fan Lin; Yu-Zhe Pien; Chia-Ming Lee; Fu-En Yang; Yu-Chiang Frank Wang; Chih-Chung Hsu (CoRR, 2026)