Analysis of Nogunt'an (Emerald Cloud Pool) from Chŏng Sŏn’s Album of Views in the Capital Region (Kyŏnggyo myŏngsŭng ch'ŏp) Using Virtual Reality Analysis Tool

<i>The Scenic Views of Kyŏnggyo</i> (<i>Kyŏnggyo myŏngsŭng ch'ŏp</i> 京郊名勝帖) is a two-volume album of poetry and paintings in 1740 by Chŏng Sŏn (sobriquet: Kyŏmjae) during his time serving as magistrate of Yangch'ŏn. It captures scenic views from his travels along the Han River. Among these, three paintings (<i>Nogunt'an</i> 綠雲灘, <i>Tokpaekt'an</i> 獨栢灘, and <i>Uch'ŏn</i> 牛川), feature major viewpoints along the South Han River. Each has encouraged scholarly debates on the exact locations depicted in the album due to the scarcity of historical records and topographical changes of the area’s natural landscape.In particular, there has been no research that identifies the viewpoint and pictorial subject of <i>Nogunt'an</i>. This difficulty arises from two factors: first, the absence of architectural structures depicted in the painting, and second, the submersion of a rock that had once been significant landmark due to the construction of the P'altang Dam. These factors have made it impossible to fully match the painting’s historical landscape with its present-day appearance.This study aims to overcome these limitations by reconstructing the landscape in a virtual space. By analyzing topographical changes and utilizing image similarity evaluation techniques from the field of computer graphics, this study also propose the precise viewpoint of <i>Nogunt'an</i>, which previous studies were unable to clearly identify. Additionally, this research examines the fisheye lens distortion and panoramic composition techniques that Chŏng Sŏn frequently employed in <i>Kyŏnggyo myŏngsŭng ch'ŏp</i> and his other landscape paintings.