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Flashcards in CTS Video Deck (23):
1

4:3 or Standard def

1.33

2

16:9 or HD video

1.77

3

16:10 or Computer/video

1.6

4

1.33

Standard def or 4:3

5

1.77

HD Video or 16:9

6

1.6

Computer/video or 16:10

7

What's the Pythagorean Theorem?

A squared + B squared = C squared

8

What's the formula for aspect ratio?

AR = W/H

9

Numbers for HD aspect ratio WITH diagonal

16:9:18.36

10

In SH = D / SL what do the variables mean?

SH is image height, D is distance of farthest viewer, SL is Level of screen detail.

11

What's the formula for determining image height?

SH = D / SL

12

What are the numbers for Level of screen detail?

8 for general viewing, 6 for reading, 4 for inspection detail

13

Formula for Viewer Distance by Text Height?

D = TH * 150

14

What's the average seated head height?

52" or 1.3 m

15

What the average seated eye height?

48" or 1.2 m

16

When talking about projector placement what do x, y, and z reference?

x = horizontal, y = vertical, z = throw

17

What's the formula for Throw Distance?

Screen width * throw ratio

18

What are some film aspect ratios and their names?

Panavision (1.85:1), 70mm (2.05:1), CenemaScope (2.35:1), Cinerama (2.76:1)

19

What are the two agreed upon resolutions of HD video?

1280 x 720 ; 1920 x 1080

20

What's the resolution of 2K video?

2048 x 1024

21

What's the resolution of 4K video?

4096 x 2048

22

Which two DCI set HD resolutions cannot yet be broadcast in the US?

2K (2048 x 1024) and 4K (4096 x 2048)

23

In the US we always broadcast TV signals at _____, no matter the resolution or original frame rate.

59.94 Hz