Validation of Shape Context Based Image Registration Method Using Digital Image Correlation Measurement on a Rat Stomach

Table 1

Errors between the SD method calculation and DIC measurement.

Pressure/𝜀	RS 1; (Nr = Nt)	RS 2; (Nr = 90% × Nt)	RS 3; (Nr=80% × Nt)
0.2 kPa	5%±8%	7%±15%	7%±12%
0.4 kPa	7%±11%	11%±16%	14%±18%
0.6 kPa	8%±11%	22%±19%	23%±20%

Notes: data are means ± SD; RS 1, RS 2, and RS 3: the reference surfaces 1, 2, and 3; Nr: the surface sample counts on the reference surface (surface at pressure = 0.0 kPa); and Nt: the surface sampling point on the DIC measured target surface (surface at pressures 0.2, 0.4, or 0.6 kPa).