In this work a project is presented on the future development of a technique based on digital close range photogrammetry combined with 3D laser scanning, to be applied to cultural heritage survey, modelling and documentation. Such technique will require a method to be realized for the block adjustment of the scanner point clouds and the bundles of images spatial rays in the same reference frame. The final goal is an algorithm for computing the 3D coordinates of object points from their plane coordinates measured on only one digital image at a time. An example is described on the co-registration of digital images and point clouds.