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. 2021 Aug 3;21(15):5239. doi: 10.3390/s21155239

Table 3.

Formulas of the pre-estimated positions of the number digits from 0 to 12.

Number Digit k	Formula
Number Digit k	$x_{d} [k]$	$y_{d} [k]$
1	$(2 x_{m i d}^{c} + x_{\max}^{c}) / 3$	$(2 y_{\max}^{c} + y_{m i d}^{c}) / 3$
2	$(x_{m i d}^{c} + 2 x_{\max}^{c}) / 3$	$(y_{\max}^{c} + 2 y_{m i d}^{c}) / 3$
3	$x_{\max}^{c}$	$y_{m i d}^{c}$
4	$(x_{m i d}^{c} + 2 x_{\max}^{c}) / 3$	$(y_{\min}^{c} + 2 y_{m i d}^{c}) / 3$
5	$(2 x_{m i d}^{c} + x_{\max}^{c}) / 3$	$(2 y_{\min}^{c} + y_{m i d}^{c}) / 3$
6	$x_{m i d}^{c}$	$y_{\min}^{c}$
7	$(2 x_{m i d}^{c} + x_{\min}^{c}) / 3$	$(2 y_{\min}^{c} + y_{m i d}^{c}) / 3$
8	$(x_{m i d}^{c} + 2 x_{\min}^{c}) / 3$	$(y_{\min}^{c} + 2 y_{m i d}^{c}) / 3$
9	$x_{\min}^{c}$	$y_{m i d}^{c}$
10	$(x_{m i d}^{c} + 2 x_{\min}^{c}) / 3$	$(y_{\max}^{c} + 2 y_{m i d}^{c}) / 3$
11	$(2 x_{m i d}^{c} + x_{\min}^{c}) / 3$	$(2 y_{\max}^{c} + y_{m i d}^{c}) / 3$
12	$x_{m i d}^{c}$	$y_{\max}^{c}$