The present disclosure relates to a method performed by an assessment system (1) for prioritization among cameras (21, 22, 23, 2n) of a multi-camera arrangement (2). The assessment system obtains (1001) respective geographical camera position (211, 221, 231, 2n1) and camera properties (212, 222, 232, 2n2) of each of the cameras. The assessment system further receives (1002) information data (43) indicating a geographical object position (41) and object features (42) of a physical object (4) positioned in a surrounding (5) in a potential field of view (213, 223, 233, 2n3) of each of the cameras. Moreover, the assessment system determines (1003)—for each of the cameras—by comparing the object position and object features with the respective camera position and camera properties, a respective distance (D1, D2, D3, Dn) to the object position and a respective expected pixel size of the object at the respective distance. The assessment system furthermore compares (1004) respective image data (214, 224, 234, 2n4) of the surrounding derived from each of the cameras, with the respective expected pixel size. Moreover, the assessment system assigns (1005) each of the cameras a respective rating based on to what extent the respective image data corresponds to the respective expected pixel size.
The disclosure also relates to an assessment system in accordance with the foregoing, a surveillance system (3) comprising such an assessment system, and a respective corresponding computer program product and non-volatile computer readable storage medium.