SMPTE RP 27 2-1989 Specifications for Operational Registration Test Pattern for Multiple-Channel Television Cameras.pdf

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1、i. SMPTE RP*Z7=Z 89 = 8357401 O000457 08b SMPTE RECOMMENDED PRACTICE e RP 27.2-1989 Specificdtimx for peratwnal Regirtratkm Test Pattern far Multzple-Channel Televw.zOn Camras 1. Scope Format, dimensions, and optical densities are spe- cified for a test pattern transparency to be used as an operatio

2、nal alignment tool for multiple- channel color television cameras. 2. Purpose This practice specifies a test pattern designed to provide a television picture signal suitable for aligning, adjusting, and checking multiple-clian- ne1 color cameras for combined optical, mechani- cal, and electrical reg

3、istration. Page 1 of 4 pages 3. Format 3.1 Pattern. A reproduction of the test pattern is shown in Fig. 1. 3.2 Grid. The horizontal and vertical black lines of the grid produce a uniformly-spaced grid divid- ing the picture area into 18 squares vertically and 24 squares horizontally. Half dimensions

4、 have been added near the edges of the pattern where registration is most difficult to achieve. 3.3 Circles and Diagonals. Circles and diagonal black lines are provided to center the pattern on the camera tubes and check alignment. Fig. 1 Reproduction of Test Pattern Copyright 0 1989 by the SOCIETY

5、OF MOTIOA? PICTURE AND TELEVISIOIL? ESGIKEERS 595 West Hartsdale Avenue, White Plains, hrY 10607, (914) 761-1100 Revision of RP 27.2-1983 Approved February 28,1989 - SMPTE RP827.2 89 El 8357403 0000458 TL2 I Page 2 of 4 pages RP27.3- Fig. 2 Loeation of Boundary Arrows, Circles, Wedges and 45“ Lines

6、3.4 Resolution Wedges. Vertical and horizontal wedges are provided for checking optical and electrical focus and to aid registration. 3.5 Arrows and Border. The eight boundary arrows and black-and-white border define the edge of the test pattern area and the scanned area. 3.6 Pattern Identification.

7、 The identification num- ber of this document shall appear on the pattern as specified in Fig. 2. 4. Dimensions 4.1 Test Pattern. The dimensions of the test pattern shall be as shown in Figs. 2 through 5, in per- centages of frame height and reproduced with a tolerance of 4.2 Image Size. The size of

8、 the scanned area as indi- cated by the eight boundary arrows shall be as follows: 4.2.1 2x2 in test slides shall have dimensions as speci- fied in American National Standard for Tele- vision-Image Areas and Mounts for Slides and Opaques, ANSI/SiPTE 94-1985. 0.1 percent of the frame height. 89 Fig.

9、3 Loeation of Horizontal Grating Liner Page 3 of 4 pages RP 272-1989 I AJ AJ WEDGE ARROWS -AH _I_ AH - Fig. 4 Loeation of Vertical Grating Lines 7 EQUAL SPACES 7 rR (FWIDTH Q 200 b 300 500 Y407 S v!, BOUNDARY ARROWS 7 EQUAL SPACES Lp ( OF WIDTH O ) Fig. 5 Wedge Detail and Boundary Arrow8 SNPTE RP*Z7

10、-2 89 E 8357403 0000460 670 Page 4 of 4 pages Dimensions AA AB AC AD AE AF AG AH AI AK AL AM AN AO AP AR C D K L M N O P AJ AQ Q R S T U V W X Y 2 Percentage 100.00000 30.00000 5.55556 11.11111 16.66667 22.22222 27.77778 33.33333 38.88889 44.44444 47.22222 50.00000 55.55556 58.33333 61.11111 63.8888

11、8 66.66667 133.33333 25.00000 83.33333 1.00000 0.50000 17.7777 4.0000 0.1667 1.1667 0.5000 3.5000 20.0000 6.0000 10.0000 12.8571 15.0000 16.6667 18.0000 19.0909 8x10 6.300 1.890 0.350 0.700 1 .O50 1.400 1.750 2.100 2.450 2.800 2.975 3.150 3.500 3.675 3.850 4.025 4.200 8.400 1.575 5.250 0.063 0.032 1

12、.120 0.252 0.01 1 0.074 0.032 0.221 1 .260 0.378 0.630 0.810 0.945 I .O50 1.134 1.203 4.2.2 35-mm test films shall have image dimensions in accordance with American National Standard for Motion-Picture Film (35-mm) - Televi- sion Image Area, ANSI PH22.95-1984. 1.2.3 16-mm test films shall have image

13、 dimensions in accordance with American National Standard Dimensions for Television Image Area on 16- mm Motion-Picture Film, ANSI PH22.96-1982. 4.3 Black-and-white Border. The dimensions of the black-and-white border shall be as follows: 4.3.1 The dimensions (AA and BA) of the black- and-white bord

14、er for 2x2 in slides are specified as the transmitted image in ANSI/SMPTE 94- 1985. 4.3.2 For 35-mm motion-picture films, the black-and- white border shall extend to the dimensions spe- cified by Style A in American National Standard for Motion-Picture Film (35-mm) - Camera Aperture Images, ANSI/SMP

15、TE 59-1989. 4.3.3 For 16-mm motion-picture films, the black-and- white border shall extend to the dimensions spe- cified in American National Standard for Mo- tion-Picture Film (16-mm) - Camera Aper- ture Image and Usage, ANSI/SMPTE 7-1988. 4.4 Line Widths. The width of the grid lines, the circles,

16、and the diagonals shall be 0.167 f 0.011 percent of the scanned image height. RP 272-1989 Inches 2x2 0.8430 0.2529 0.0468 0.0937 0.1405 0.1873 0.2342 0.2810 0.3278 0.3747 0.3981 0.4215 0.4683 0.4917 0.5151 0.5386 0.5620 1.1240 0.2108 0.7025 0.0084 0.0042 O. 1499 0.0337 0.0014 0.0098 0.0042 0.0295 0.

17、1686 0.0506 0.0843 0.1084 O. 1264 0.1405 0.1517 0.1610 35-mm 0.6000 O. 1782 0.0330 0.0660 0.0990 0.1320 0.1650 0.1980 0.2310 0.2640 0.2805 0.2970 0.3300 0.3465 0.3630 0.3795 0.3960 0.8000 0.1485 0.4950 0.0059 0.0030 0.1056 0.0238 0.0010 0.0069 0.0030 0.0208 0.1188 0.0356 0.0594 0.0764 0.0891 0.0990

18、O. 1070 0.1 134 16-mm 0.2760 0.0828 0.0153 0.0307 0.0460 0.0613 0.0767 0.0920 0.1073 O. 1227 O. 1303 0.1380 0.1533 0.1610 0.1687 0.1763 0.1840 0.3680 0.0690 0.2300 0.0027 0.0014 0.0491 0.0110 0.0005 0.0032 0.0014 0.0097 0.0552 0.0166 0.0276 0.0355 0.0414 0.0460 0.0497 0.0527 4.3 Resolution Wedges. T

19、he resolution portion of the pattern is shown in detail in Fig. 5. The tol- erance of the nominal dimensions of the lines of the wedge shall be & 0.01 1 percent of the scanned image height. 4.5.1 The nominal dimensions of the wedge shall be as illustrated in Fig. 5. 1.5.2 At any given television lin

20、e number, the ratio of the width of the back half cycle to that of the white half cycle shall be 1.00 f 0.05. 5. Optical Densities 5.1 Optical Densities. All optical densities shall be measured in accordance with American National Standard for Photography - Density Measure- ments - Geometric Conditi

21、ons for Transmission Density, ANSI PH2.19-1986. 5.2 Background. The white background shall be nom- inally dear. 5.3 Grid lines, circles, diagonals, arrows, and letter- ing shall have a density greater than 1.9. 5.4 Resolution Wedges and Black-and-white Border. The resolution wedges and black-and-whi

22、te bor- der shall have a black density greater than 1.9 and the white shall be nominally clear. SOTE 1: The emulsion position shall correspond to the one normally used for the specific format. SOTE 2: Test material conforming to this practice is available from the Society of Motion Picture and Tele- vision Engineers.