Dear GIS-Idea 2026 Conference Secretariat,

Thank you very much for accepting our paper entitled “Assessment of Rice Growth at Different Phenological Stages Based on UAV Multispectral and High-Resolution UAV RGB Imagery.” which is scheduled for Session 8, from 11:20 to 11:40 on September 26, 2026.

I regret to inform you that, due to a previously scheduled fieldwork assignment for my research project, I will not be able to attend GIS-Idea 2026 and present our paper as scheduled.

I sincerely apologize for any inconvenience and greatly appreciate your kind understanding. I would like to express my sincere thanks to the Organizing Committee for the opportunity to participate in GIS-Idea 2026.

I wish the conference great success and hope to have the opportunity to contribute to future GIS-Idea events.

Thank you again for your understanding.

Best regards,

Le Van Canh