李小文院士未及七十,突然离世,令其亲者悲,慕者痛.他崇尚简朴、酷爱自由、提携后进、平易近人的作风,产生了很大的社会影响,赢得了大众的好评.一名离世的科技工作者,被众多的仰慕者心悦诚服地追捧悼念,他的“粉丝们”喊出世间再无“扫地僧”.此情此景令人感动!李小文院士的生平事迹已经广为流传,本人与李小文院士相识共事20余载,今特撰此文,通过几个侧面介绍他的为人处事风格,同时重点对他的主要科学成就之一——遥感几何光学模型及影响做一概述,希望对读者有所启 Academician Li Xiaowen died suddenly of a seventieth death occasion so his relatives were miserable and mourning pains.He advocated a simple, fond of freedom, carrying forward the past and approachable style, had a great social impact and won the public’s praise. The death of the scientific and technological workers, many admirers sincerely sought after the memorial service, his “fans ” shout out of the world without “sweeping the monk ” .This situation is moving! Academician Li Xiaowen’s life story has been Widely circulated, I met with Academician Li Xiaowen for more than 20 years, I hereby present this article, through his side to introduce his style of doing things, while focusing on one of his main scientific achievements - remote sensing geometric optical model and its impact An overview, I hope readers have been inspired