the angularity comparator charts reduced subjective shape classification error by two thirds , and group error ( overall performance expressed by the coefficient of variance ) decreased from 15.9 % to 4.7 % for type i ( normal cells ) , from 33.9 % to 17.3 % for type ii ( cells with angular nuclei ) , from 15.5 % to 14.1 % for type iii ( cells with smeared nuclei ) , and from 3.2 % to 5.5 % for type iv ( dead cells ) .
C0007610
cells
C0007634
cells