야외 조형물의 3DGS 재현 품질을 위한 모바일 통합 촬영 전략: 사례 기반 분석

초록

This study examined mobile capture methods for improving the outdoor sculpture reconstruction quality in three-dimensional Gaussian splatting (3DGS). An integrated capture strategy combining circular orbit paths, multiple heights, distance variation, reduced sky proportion, and fixed exposure was applied to six sculptures at Ttaogi Norebi Park, Siheung, Gyeonggi Province, South Korea, to address outdoor limitations, including transient objects, illumination variation, pose errors, and low-texture regions. All six objects exhibited improved peak signal-to-noise ratio (PSNR), structural similarity index, and learned perceptual image patch similarity, with the average PSNR increasing by 4.44 dB. However, the input format and shooting environment differed between pre- and post-capture; thus, the improvement is interpreted as an associated trend rather than a strategy-driven effect. Five experts rated strategy-applied reconstructions higher, although the conditions and evaluator compositions were not fully controlled. Based on these results, this study proposes a mobile outdoor 3DGS capture guideline.

키워드