Fig 1.
Detailed flow of the research approach.
Fig 2.
Process and methods for extracting initial product color schemes.
Table 1.
PAD emotion scale with 12 pairs of opposite adjectives.
Table 2.
10 adopted emotion characteristic references and their PAD coordinates.
Fig 3.
10 dual- and 10 tri-color test cases applied to color-matching prototypes during Stage 1.
Table 3.
Mean statistics from PAD scaling measurements of color-matching case samples during Stage 1.
Table 4.
PAD-coordinated values and emotional characteristics closeness of color-matching prototypes.
Fig 4.
Confirmed color-matching schemes for Stage 2.
Table 5.
Mean statistics of PAD-coordinated emotional responses in Stage 2.
Table 7.
Subjective visual preferences of Mean statistics & Normalized results in Stage 2.
Table 6.
Results of fuzzy grey correlation analysis of color-matching schemes in Stage 2.
Fig 5.
Subjective and objective prioritization of color-matching schemes in Stage 2.
Fig 6.
Areas of interest (AOIs) for experimental samples.
Fig 7.
Eye-tracking experimental procedure.
Fig 8.
Attention heatmap results.
Table 8.
Fixation duration statistics of color schemes.
Fig 9.
Rendering of the product with the optimal color scheme.
Fig 10.
Operational mechanism of the HKES model.
Table 9.
Method-level comparison of representative Kansei Engineering paradigms.
Fig 11.
Radar chart comparison of color scheme evaluation results obtained using different methods.