“…Previous proposed stereo shooting principles or models generally take part of influenced factors into consideration or based on human perception, also the shooting principles are two-level evaluation criteria. In 2000, Yamanoue et al based on a five-point scale of subjective perception, studied the relationship between shooting condition and cardboard effect of stereoscopic images [10]. Later, they used the five-point scale as the evaluation level in the subjective experiment in the work [15], and did the geometrical analysis of puppet-theater and cardboard effects.…”