Focus, Don't Prune: Identifying Instruction-Relevant Regions for Information-Rich Image Understanding. - Mincheol Kwon; Minseung Lee; Seonga Choi; Miso Choi; Kyeong-Jin Oh; Hyunyoung Lee; Cheonyoung Park; Yongho Song; Seunghyun Park; Jinkyu Kim (CoRR, 2026)