Table 1. Learned sensing classification of P. falciparum infection, thin smear.

		Illumination Type & Classification Score
Data	Value	PC Ring	Off-axis	PC +/-	All	Random	Optim.
Red-only	Average	0.827	0.782	0.718	0.711	0.749	0.852
	Majority	0.847	0.804	0.728	0.724	0.797	0.862
	STD	0.008	0.012	0.007	0.008	0.026	0.010
	Precision	0.922	0.917	0.845	0.822	0.860	0.926
	Recall	0.715	0.619	0.532	0.534	0.593	0.765
Green-only	Average	0.859	0.746	0.699	0.705	0.760	0.873
	Majority	0.878	0.756	0.707	0.719	0.807	0.892
	STD	0.008	0.015	0.014	0.011	0.040	0.017
	Precision	0.936	0.863	0.837	0.804	0.858	0.944
	Recall	0.769	0.582	0.498	0.542	0.621	0.791
Blue-only	Average	0.842	0.748	0.735	0.731	0.758	0.853
	Majority	0.872	0.771	0.744	0.751	0.825	0.884
	STD	0.015	0.011	0.013	0.011	0.029	0.018
	Precision	0.932	0.867	0.869	0.845	0.868	0.920
	Recall	0.737	0.585	0.554	0.566	0.610	0.773
RGB	Average	0.847	0.768	0.726	0.707	0.753	0.882
	Majority	0.872	0.788	0.747	0.722	0.833	0.908
	STD	0.018	0.010	0.020	0.020	0.039	0.019
	Precision	0.907	0.835	0.822	0.808	0.841	0.939
	Recall	0.772	0.669	0.579	0.544	0.625	0.818

"PC ring" illuminates with a ring of 20 dark-field LEDs for the first image and then the 8 central bright-field LEDs for the second image and subtracts the two images for phase contrast. "Off-axis" illuminates with one LED at a small angle with respect to the optical axis. "PC +/-" illuminates with a bright-field LED at an angle for the first image and the LED at equal and opposite angle for the second image before subtracting these two images. "All" sets all LEDs to a uniform brightness. "Random" sets the LEDs’ brightness to random values for the illumination. "Optim." is the learned pattern.