14 August 2024 Hybrid lighting enhances color accuracy in DLP-based 3D imaging
Author Affiliations +
Abstract

Color accuracy is of immense importance in various fields, including biomedical applications, cosmetics, and multimedia. Achieving precise color measurements using diverse lighting sources is a persistent challenge. Recent advancements have resulted in the integration of LED-based digital light processing (DLP) technology into many scanning devices for three-dimensional (3D) imaging, often serving as the primary lighting source. However, such setups are susceptible to color-accuracy issues. Our study delves into DLP-based 3D imaging, specifically focusing on the use of hybrid lighting to enhance color accuracy. We presented an empirical dataset containing skin tone patches captured under various lighting conditions, including combinations and variations in indoor ambient light. A comprehensive qualitative and quantitative analysis of color differences (ΔE00) across the dataset was performed. Our results support the integration of DLP technology with supplementary light sources to achieve optimal color correction outcomes, particularly in skin tone reproduction, which has significant implications for biomedical image analysis and other color-critical applications.

© 2024 Society of Photo-Optical Instrumentation Engineers (SPIE)
Erik M. Barrios, Jesus Pineda, Lenny A. Romero, María S. Millán, and Andres G. Marrugo "Hybrid lighting enhances color accuracy in DLP-based 3D imaging," Optical Engineering 63(8), 083105 (14 August 2024). https://doi.org/10.1117/1.OE.63.8.083105
Received: 7 March 2024; Accepted: 12 July 2024; Published: 14 August 2024
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KEYWORDS
Digital Light Processing

Light sources and illumination

Skin

Light sources

Stereoscopy

Projection systems

Color tone

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