then aligning and stitching them together to create a full 3d mesh model subsequently image sequences or videos without structured light patterns can be fully recovered in the post processing stage more specifically a frame selection process 116 can be performed by for example the frame selection module 116 of fig1 to separate the frames not illuminated by the structure light from the frames illuminated by the structured light to produce an image sequence that does not include images illuminated by the structured light such that reproduction and display of a scene is not negatively affected such a process is described in greater detail below fig4 depicts a flow diagram of a method for acquiring geometric information of images in accordance with an embodiment of the present invention the method 400 begins at step 402 in which an object is illuminated with flickering light as described above in one embodiment the flickering light is invisible to human eyes and can comprise a frequency of 60 hz although other frequencies can be used as such high accuracy and real time speed can be achieved even for objects with strong textures the method 400 then proceeds to step 404 at step 404 the images produced as the flickering light illuminates the reference object are captured by a camera as described above the method 400 then proceeds to step 406 at step 406 a differential analysis is applied to a produced differential image pair e g.