Fig. 1. Structure of the chromatic LED illumination module. (a) Physical picture of the module; (b) basket-weave arrangement; (c) Cartesian arrangement
Fig. 2. Model of the chromatic LED array. (a) LED arranged in basket-weave arrangement when N=28; (b) improved Shepard interpolation algorithm
Fig. 3. CGI system based on chromatic LED array
Fig. 4. RMSE of reconstructed image with different sampling methods
Fig. 5. Images reconstructed with different sampling ways. (a) Original image; (b) basket-weave sampling; (c) Cartesian sampling
Fig. 6. RMSE of reconstructed image with different algorithms
Fig. 7. Images reconstructed by different algorithms. (a) Original image; (b)--(e) mosaic interpolation algorithm, bicubic interpolation algorithm, bilinear interpolation algorithm, our algorithm in basket-weave sampling; (f)--(i) mosaic interpolation algorithm, bicubic interpolation algorithm, bilinear interpolation algorithm, our algorithm in Cartesian sampling
Fig. 8. Real image reconstruction results of different algorithms. (a) Original image; (b)--(e) mosaic interpolation algorithm, bicubic interpolation algorithm, bilinear interpolation algorithm, our algorithm in basket-weave sampling; (f)--(i) mosaic interpolation algorithm, bicubic interpolation algorithm, bilinear interpolation algorithm, our algorithm in Cartesian sampling