This paper presents a method that allows very accurate measurements for a full characterization of shaped charge jets.A double visualization of the jets is achieved by means of both a modified high speed camera CORDIN i Double Orthogonal Synchro Streak Technique (DOSST) configuration and a classical Double X.Rays Technique (DXRT).The interests of this method are twofold: -Firstly, the DOSST and the DXRT complement each other. Because of the high precision of the system, DOSST allows to obtain very accurate space-time data. But some fragments can be hidden either at the jet tip by shock waves or at the rear of the jet by some detonation products. With DXRT, all fragments are visible on the X-ray photograph.-Secondly, the validity of the results can be controlled by comparing, on the same experiment, the X-ray data with the camera data.For each fragment, the raw data (space-time position, length and area) is semi-automatically determined by an image processing system developed at the Centre Technique des Systèmes Navals (CTSN). Then, all the usual characteristics of the jet are calculated using appropriate algorithms.The experimental methodology, the data processing and the results obtained for various shaped charges are detailed. Values obtained by the high speed camera and the X-ray flashes are compared. Finally, comparisons between the calculated values and the experimental observations, like impact locations on the witness plates, are also made.