TY  - GEN
AU  - Clarkson,E
AU  - Barrett,H
TI  - A bound on null functions for digital imaging systems with positivity constraints
SN  - 0146-9592
PY  - 2012///1002
N1  - Publication Type: Journal Article
UR  - https://doi.org/10.1364/ol.22.000814
ER  -