Yu Yang 0004 Jing Xiong Xiaoyu She Chang Liu Chengwei Yang Jie Li Passive Initialization Method Based on Motion Characteristics for Monocular SLAM. 8176489:1-8176489:11 2019 2019 Complex. https://doi.org/10.1155/2019/8176489 https://www.wikidata.org/entity/Q128492869 db/journals/complexity/complexity2019.html#YangXSLYL19