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提高大比例尺航空像片树种判读精度的方法研究 被引量:1

RESEARCH OF THE METHOD ENHANCING ACCURACY OF INTERPRETATION FOR TREE SPECIES ON LARGE SCALE AERIALPHOTOS
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摘要 用因子试验的方法通过方差分析来检验彩色像片洗印材料及立体镜放大倍数对五个树种组判读精度的影响。试验结果表明,立体镜放大倍数对判读结果有重要影响,而像片洗印材料次之,其中使用4.5放大倍数的立体镜与像纸正片组合的判读方式能取得较好的效果,在比例尺1∶8000的情况下,对所有树种判读的总精度可达75%左右。并且,在试验条件下,五个树种组之间判读精度有很大差异,其中三个树种组可达80%以上。在判读观察条件相同时,不同树种的判读精度主要受判读者能力的影响,但通过使用像片判读检索表和计算机辅助判读的方法更能提高判读效果。 The paper concerns the effect of color aerialphoto material of print and magnification of stereoscope at interpretation accuracy for five groups of tree species through factor experiment and variance analysis. The result of the experiment indicates that the stereoscopes' magnification is important for enhancing the accuracy of photo interpretation, but photo material is second in the experimental case. Under the condition of the stereoscope with 4.5 magnification and print photo with scale 1: 8000, the accuracy of interpretation is the best in the experiment and it is over 75 percent for all tree species in the experiment. There is difference between the interpretation accuracy of tree species, three of whose accuracy reach more than 80 percent. In the same observing (Stereoscope magnification and material of photo), the difference of interpretation ability of interpreter, but using the key table of interpretation or the method of computer aiding interpretation, we can get higher accuracy of interpretation.
作者 周洪泽
机构地区 东北林业大学
出处 《东北林业大学学报》 CAS CSCD 北大核心 1990年第2期89-94,共6页 Journal of Northeast Forestry University
关键词 像片判读 正判率 因子试验 树种 航空像片 Photo interpretation Percent of right interpretation Factor experiment
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  • 1周洪泽,黄哲学.用计算机辅助进行航空像片森林分类的研究[J]东北林学院学报,1984(04).

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