COMBINING HIGH SPATIAL RESOLUTION OPTICAL AND LIDAR DATA FOR OBJECTBASED IMAGE CLASSIFICATION Ruonan Li 1, Tianyi Zhang 1, Ruozheng Geng 1, Leiguang Wang 2, * 1 School of Forestry, Southwest Forestry University, Kunming, 650224, China 2 Institutes of Big Data and Artificial Intelligence, Southwest Forestry University, Kunming, 650024, China KEY WORDS: High .