Table 1.

Definition of data term D_p(x_p) and region interaction term $W_{p,q}^{c,d}\left({\mathbf{x}}_p^c,{\mathbf{x}}_q^d\right)$ in Eq. (1).

${\mathbf{x}}_p^c$	0	0	1	1
${\mathbf{x}}_p^d$	0	1	0	1
Dp(xp)	–log P(“background”|Ip)	–log P(“disc”|Ip)	∞	–log P(“cup”|Ip)
${\mathbf{x}}_p^c$	0	0	1	1
${\mathbf{x}}_q^d$	0	1	0	1
$W_{p,q}^{c,d}\left({\mathbf{x}}_p^c,{\mathbf{x}}_q^d\right)$	0	0	∞	0