The following image is taken from teaching physics lecture Was man aus virtuellen Bildern lernen kann (in German):
Now the cited paper claims that the left hand side is the correct picture to explain the virtual image if you look with your eyes, the right hand side is correct if you use a camera (but incorrect if the camera is replaced with the eye). In the case of a plane mirror both constructions lead to the same result. However in the case of curved mirrors they lead to different results (which is also discussed in the cited paper). Now I am a bit confused since the right picture (with an eye instead of the camera) is that one typically drawn in physics textbooks (for example Pedrotti "Introduction to optics" p.38 or Halliday Resnick "Fundamentals of Physics" p.1140). So my question is, which picture is the correct one? Do you know further references of papers or books which discuss this problem more in detail? (I have only found this cited paper in German).