Koichi Namekata Sherwin Bahmani Ziyi Wu 0002 Yash Kant Igor Gilitschenski David B. Lindell SG-I2V: Self-Guided Trajectory Control in Image-to-Video Generation. 2025 ICLR https://openreview.net/forum?id=uQjySppU9x conf/iclr/2025 db/conf/iclr/iclr2025.html#NamekataBWKGL25