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this is a video to show how to add splines to a video image camera video image right click on the on the video and go to edit splines and we can add a new spline add a 2d spline and then we can move this over to match the upper lip like that and we can delete these extra knots by right clicking and then select and delete not and we can do the same for the lower lip just make these marks and shake your  notes and then delete the extra ones you don't think you need right click again  right click delete delete it's there  with dart and something that matches the lips and then to measure lip opening we will add a different type of measuring  spline called a fiducial and we can for instance of vertical fiducial to measure lip opening so as the lips open we will measure that gap and we could if you like have one for the lip protrusion so we could have another another one here for say up here for upper lip protrusion  it depends on your task and then what you need to do is unfortunately this is you need to do is unfortunately this is manual you need to go through for each of those lips and each time point that you're interested in you'll need to match the lips to that time points and there's the lips to that time points and there's the lips have opened it to that point and so it's plain one is the upper lip you could actually change the name of that so it's easier so that's upper lip  and spline to his lower lip okay so for the lower lip and we add a keyframe at this time point we can then adjust the position of the spline so not just the lip again and we can do the same for the upper lip and so and so on and once we finish that we can save the clothes and then I'll show you a second video on how to actually view these values from the aperture opening and closing