ANALYZING PERCEPTUAL COLOR DIFFERENCES OF 3D STRUCTURES IN CIVIL ENGINEERING: REAL VS VIRTUAL ENVIRONMENTS

Tóm tắt

This study explores the perceptual color differences of 3D objects in real and virtual environments to improve color accuracy in civil engineering applications. Experiments were conducted using real-world objects under controlled D65 lighting and virtual objects displayed on LDR and HDR monitors. The grey scale method, involving fifteen colornormal observers for real-world tests and twelve for virtual tests, revealed that surface glossiness and lighting direction significantly affect color perception. Glossy surfaces exhibited smaller color differences, while combined diffuse and spot lighting further minimized these differences. Virtual experiments showed that HDR displays more accurately replicate real-world color differences, with a correlation of ???? =0.461 compared to ???? = 0.301 for LDR displays. However, discrepancies between real and virtual environments remain, suggesting that further advancements in rendering techniques are needed. These findings highlight the value of HDR technology in virtual simulations for achieving more precise color representation, ultimately enhancing design accuracy and decision-making in civil engineering.