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    SMPTE RP 27 3-1989 Specifications for Safe Action and Safe Title Areas Test Pattern for Television Systems《电视系统动作安全区和字幕安全区的测试图规范》.pdf

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    SMPTE RP 27 3-1989 Specifications for Safe Action and Safe Title Areas Test Pattern for Television Systems《电视系统动作安全区和字幕安全区的测试图规范》.pdf

    1、SMPTE RECOMMENDED PRACTICE Specfcutions for Sah Action und Sap Title Areas TeJt Pattern for Televinbn Systems e RP 27.3-1989 1. Scope This practice specifies the format, dimensions, and optical densities for a test pattern for safe action and safe title areas for television systems. 2. Purpose This

    2、practice specifies a test pattern which indi- cates the safe action image area within which all significant action must take place and ehe safe title image area within which the more important information must be confined to ensure visibility of the information on the majority of home tele- vision r

    3、eceivers. . e 3. orm mat 3.1 Pattern. A reproduction of the test pattern is shown in Fig. 3.2 Area Limit Markings. Dashed lines having the shape and dimensions shown in the figures and table shall be provided to indicate the boundaries of the safe action and title areas. 3.3 Arrows and Border. The e

    4、ight boundary arrows and border define the edge of the test pattern area and the scanned area. 3.4 Pattern Identification. The identification num- ber of this document shall appear on the pattern as specified in the figures. Page 1 of 3 pages 4. Dimensions 4.1. Test Pattern. The dimensions of the te

    5、st pattern shall be as shown in Fig. 2 and the table in per- centages of frame height and reproduced with a tolerance of rt 2 percent of the frame height. 4.1.1 The area identification marks shall be posi- tioned symmetrically on the centerlines of the image area as specified in 4.4 within -.t. 2 pe

    6、r- cent of the respective dimension. 4.2 Image Size. The size of the scanned area, as indi- cated by the eight boundary arrows, shall be as ollows: 4.2.1 2x2 in test slides shall have image dimensions in accordance with American National Standard for Television-Image Areas and Mounts for Slides and

    7、Opaques, ANSIISMPTE 94-1985. 4.2.2 35-mm test films shall have image dimensions in accordance with American National Standard for Motion-Picture Film 35-mm) - Television Image Area, ANSI PH22.95-1984. 4.2.3 16-mm test films shall have image dimensions in accordance with American National Standard Di

    8、mensions for Television Image Area -un 16- mm Motion-Picture Film, ANSI PH22.96-1982. Copyright 1989 by the SOCIETY OF MOTIOh PICTURE AhTl) TELEVISION ENGIhEEKS 595 West Hnrtsdnle Avenue, White Plains, NY 10607, (9lr) 761-11Qil Revision of RP 27.3-1983 Approved March 29,1989 SMPTE RP*27.3 89 W 83.57

    9、401 0000462 443 W Page 2 of 3 pages HP27.3-1989 I Fig. 1 Reproduction of Test Pattern I Ih I I Ki ? E I I Il Fig. 2 Dimensional Drawing of Test Pattern RP 27.3-1989 Page 3 of 3 pages 4.3 Black-and-White Border. The dimensions of the black-and-white border shall be as follows: Inches Dimensions Perce

    10、nt 2x2 35-mm 16-mm A Scanned image height 100.0 0.843 0.594 0.276 B Scanned image width 133.3333 1.124 0.792 0.368 C Position of arrow 30.0 .253 0.178 0.083 D Arrow length 4.0 0.034 0.024 0.011 E Arrow shape in degrees 40.0 40.0 40.0 F Height of safe title area 80.0 0.674 0.475 0.221 G Width of safe

    11、 title area 106.0 0.894 0.630 0.293 H Corner radius, safe title area 21.0 0.177 0.125 0.058 J Height of safe action area 90.0 0.759 0.535 0.248 K Width of safe action area 120.0 1.012 0.713 0.331 L Corner radius, safe action area 24.0 0.202 0.143 0.066 M Length and spacing of lines 5 .O 0.042 0.030

    12、0.014 N Width of line 0.5 0.004 0.003 0.0014 P Heightof letters 2.5 0.021 0.015 0.007 Q Vertical position of action area 5.0 0.042 0.030 0.014 R Vertical position of title area 10.0 0.084 0.059 0.028 S Horizontal position of action area 6.67 0.056 0.040 0.018 T Horizontal position of title area 13.3

    13、3 0.112 0.079 0.037 4.3.1 Height and width dimensions of the black-and- white border for 2x2 in slides shall extend to the minimum dimensions specified in ANSI/ 4.3.2 For 35-mm motion-picture films, the black-and- white border shal extend to the dimensions specified by style A in American National S

    14、tand- ard for Motion-Picture Film (35-mm)-Camera Aperture Images, ANSI/SMPTE 59-1989. 4.3.3 For 16-mm motion-picture films, the black-and- white border shall extend to the dimensions specified in American National Standard for Motion-Picture Film (16-mm) - Camera Aper- ture Image and Usage, ANSIISMP

    15、TE 7-1988. 4.4 Line Width. The line width of the area limit marks shall be 0.50 rt 0.05 percent of picture height. 4.5 Lettering. The lettering shall be bold and of a style dnd size shown in the figures. 4.6 Safe Title. Dimensions F, G, H, R, and T shall not limit moving titles. Horizontally moving

    16、titles SMPTE 94-1985. (crawls) and vertically moving titles (rolls) are allowed to move to and between the extreme edges of the scanned image. 5. Optical Densities 5.1 Optical Densities. All optical densities shall be measured in accordance with American National Standard for Photography-Density Mea

    17、sure- ments-Geometric Conditions for Transmission Density, ANSI PH2.19-1986. 5.2 Background. The black background shall have a density greater than i -9. 5.3 The density of the dashes, arrows, and lettering shall be nominally clear. NOTE 1: The emulsion position shall correspond to the one normally usedfor the specific format. NOTE 2: Test material conforming to this practice is available from the Society of Motion Picture and Tele- vision Engineers.


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