Precision is a key feature for the development of 3D measurement systems. Time-of-flight cameras used for such measurements create point clouds containing a lot of noise, which may not be useful for further analysis. In our research to solve this problem, we propose a new method for precise point cloud filtering. We use 2D information from a telecentric lens camera to remove outlier points from 3D measurements recorded with a Time-of-Flight camera. The use of a telecentric camera allows us to obtain the most precise information about the contour of an object, which allows us to accurately filter the object reconstruction in 3D.