Discoloration Characteristics of Mechanochromic Sensors in RGB and HSV Color Spaces and Displacement Prediction
Source abstract
Abstract
Mechanochromic sensors are promising for structural health monitoring as they can visually monitor the deformation caused by discoloration. Most studies have focused on the large deformation problems over 100% strain; however, it is necessary to investigate the discoloration characteristics in a small deformation range to apply it to engineering structures, such as reinforced concrete. In this study, a photonic crystal-based discoloration sensor was investigated to determine the discoloration characteristics of the red, green, and blue (RGB) as well as hue, saturation, and value (HSV) color spaces according to displacement levels. B and S showed the highest sensitivity and linear discoloration at displacements < 1 mm, whereas R and H showed significant discoloration characteristics at displacements > 1 mm. The Vision Transformer model based on RGB and HSV channels was linearly predictable up to 4 mm displacement with an accuracy of R2 0.89, but errors were found at the initial displacement within 2 mm.
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Research context
OpenAlex topics: Infrared Target Detection Methodologies · Image Enhancement Techniques · Color Science and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Agricultural Machinery Engineering, Jeonbuk National University, Jeonju 54896, Republic of Korea
Department of Bioindustrial Machinery Engineering, Jeonbuk National University, Jeonju 54896, Republic of Korea
Department of Rural Construction, Jeonbuk National University, Jeonju 54896, Republic of Korea
Korean Peninsula Infrastructure Research Center, Department of Construction Policy Research, Korea Institute of Civil Engineering and Building Technology, Goyang-si 10223, Republic of Korea
Department of Structural Engineering Research, Korea Institute of Civil Engineering and Building Technology, Goyang-si 10223, Republic of Korea
Nano Lithography and Manufacturing Research Center, Korea Institute of Machinery and Materials (KIMM), Daejeon 34103, Republic of Korea
Funding
National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT)
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