Research Article

Multistage Optimization Using a Modified Gaussian Mixture Model in Sperm Motility Tracking

Table 1

WHO standard for normal sperm characteristics.

Sperm propertyWHO standard for normal sperm property

Sperm count10 million sperms per milliliter.
Sperm morphologyHead: oval in shape, 3–5 μm long and 2-3 μm wide
Middle piece: less than 1 μm in width, 5–7.5 long, and must be uniform and visible
Tail: 45 μm in length, uniform, and visible
Sperm motilityFast progressive: velocity more than 25 μm/s
Slow progressive: velocity less than 25 μm/s
Immotile: velocity is equal to zero