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Appendix 1

Appendix 1

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The Filmmaker’s Guide to Final Cut Pro Workfl ow<br />

tapes with the 29.97 time code (30 NDF) and a lower window with the 23.98 time code (24 NDF).<br />

The two windows should match exactly except for the frame numbers. The seconds should tick off<br />

in lock step. The lower window displays the time code from the HD tape. Before the reverse telecine,<br />

the 29.97 frame numbers in the upper window were perfect and the 23.98 lower frame numbers were<br />

blurred every few frames. After the reverse telecine the opposite is true.<br />

If you captured from the HD tapes in photo JPEG, there are no window burns, and none are needed.<br />

Your photo JPEG matches in every way, including the frame rate to the HD tapes, except they are<br />

very low resolution and bandwidth.<br />

As with the 29.97 online, use the media manager to create an off-line sequence, only in this case it<br />

will be an HD 23.98 off-line sequence.<br />

Go to Log and Capture, and in the capture settings set to HD 23.98 format. Click on Capture Scratch<br />

and set the capture scratch to the high-speed hard disc array. Select Batch Capture and when Final<br />

Cut Pro asks for the fi rst tape, load the corresponding HD tape into the recorder.<br />

You will need to arrive at the online with all of the original HD tapes and all titles and graphics in<br />

fi nal resolution. The best way to handle HD titles is to make them in 1,920 × 1,080 from the outset.<br />

When cut into a 720 × 486, if necessary, use the scale control in the motion tab to size them down.<br />

When imported into the HD online, they are the proper size.<br />

Up-Rez: Converting Standard Defi nition Video into<br />

High-Defi nition Video<br />

In some workfl ows, video shot in 24P SD is converted to 1080i, 1080p, or 720p HD video. Scaling<br />

is simple. All HD television sets have a scaler built in. These sets have inputs for NTSC SD video<br />

that they scale to 1080i and display. Some DVD players can also scale, playing SD DVDs to 1080i<br />

or even 720p.<br />

The simplest system of scaling takes each pixel and makes exact copies of them; the old pixel is the<br />

same size, only now it is made up of several pixels. The problem with this system is that the resulting<br />

image looks exactly like the original making the scaling somewhat pointless. Ideally, we want<br />

the new image to look like it was shot in HD, not just “blown up” SD. The new pixels need to be<br />

created by averaging and interpreting all the original pixels around the new pixel. For interlaced<br />

pictures, the new pixels also need to take into account the color of the pixels in the frame before and<br />

the frame after the one being scaled to properly interpolate an interlaced frame.<br />

The problems come from several places. Look at the SD image of the fl ag and pole in Figure 6.4.<br />

Where the lower fl ag meets the white, upper half of the fl ag, there are several rows of “blended”<br />

pixels. This is a necessary function of the DV codec. If the lower dark pixels met the white pixels<br />

directly, the edge would look jagged or “aliased.” By creating blended pixels, the jagged edge is<br />

smoothed, a process known as “antialiasing.” But in the HD image in Figure 6.5, the rows are now<br />

many pixels wide; the large blended pixels have been scaled with the rest of the image producing<br />

more blended pixels than needed to smooth the edge. The image now looks soft, the edges overblended.<br />

Many of the scaling algorithms used in up scaling have edge-enhancing functions to try to<br />

restore the edges.<br />

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