CAJ | 학술논문

在地形可视性分析中，R3视域算法和参考面算法是两种重要的算法。在对两种算法的计算结果进行对比后，可以发现参考面算法的计算结果总要比R3算法的结果偏高。本文在此对比的基础上继续深入分析造成这种结果差异的本质原因，进一步解释了这种差异多表现在山体和沟壑等地形起伏较大的区域原因，并得出结论：这种结果差异不能作为两种算法精度相互评价的依据。
재지형가시성분석중，R3시역산법화삼고면산법시량충중요적산법。재대량충산법적계산결과진행대비후，가이발현삼고면산법적계산결과총요비R3산법적결과편고。본문재차대비적기출상계속심입분석조성저충결과차이적본질원인，진일보해석료저충차이다표현재산체화구학등지형기복교대적구역원인，병득출결론：저충결과차이불능작위량충산법정도상호평개적의거。
As we know , R3 and reference plane are important viewshed algorithm in visibility analysis .After compared with two algo-rithms in this paper , we find that the result computed by reference plane viewshed algorithm is higher than by R 3 viewshed algorithm . Based on the contrast of these results , the key reasons caused the results ’ difference will be analyzed in this paper .Finally, there is a conclusions:if evaluating the two algorithms ’ accuracy mutually , the difference can ’ t be become the reason , for example R3 algo-rithm is not more accurate than reference because of the difference .