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引言电影放映技术委员会决定,在采用现有的合适检验片条件下,应制定一个技术指南标准,以有助于有关人员确定放映画面表现清晰度的合格程度。虽然此标准并不涉及诸如画面对比度,色边,画面稳定性等诸因素,但它们对于表观清晰度的影响却是应该考虑的。1 范围本技术指南标准规定了测定70、35和16mm电影放映系统画面清晰度的条件,也规定了采用放映机调整用检验片进行放映时,画面清晰度的实际可接受极限值的等级(见附录A2)。
INTRODUCTION The Motion Picture Committee decided that a technical guidelines should be developed to facilitate the relevant personnel in determining the eligibility of the presentation pictures for clarity, using the existing suitable test strips. Although this standard does not deal with such factors as picture contrast, color fringing, picture stability, etc., their impact on apparent sharpness should be considered. 1 Scope This technical guideline specifies the conditions for the determination of the picture clarity of 70, 35 and 16 mm cinema projection systems as well as the level of the actual acceptable limits of picture sharpness when projecting with a test strip for projector adjustment (see appendix A2).