EXPLOITING MULTI-CAMERA CONSTRAINTS WITHIN BUNDLE BLOCK ADJUSTMENT: AN EXPERIMENTAL COMPARISON

Abstract. The growing deployment of multi-head camera systems encouraged the emergence specific processing algorithms, able to face challenges posed by slanted view geometry. Such multi-camera are rigidly tied their manufacturers hence exploitation this internal constraint should be further exploited. Several approaches have been proposed deal with orientation constraints, aim reducing number unknowns, computational time and possibly improve accuracy. In paper we compare results provided publicly available implementations in order investigate advantages enforcing relative constraints for aerial terrestrial triangulation systems. Data from a Leica CityMapper Stereopolis-Ladybug considered, reporting how constrained solution can accuracy respect traditional (unconstrained) bundle block adjustment solutions.