We use Optical Character Recognition (OCR) during our scanning and processing workflow to make the content of each page searchable. You can view the automatically generated text below as well as copy and paste individual pieces of text to quote in your own work.
Text recognition is never 100% accurate. Many parts of the scanned page may not be reflected in the OCR text output, including: images, page layout, certain fonts or handwriting.
re of the resolution possibilities of a l6mm film, which, relative to 35mm film, might have a figure of merit of 75. In other words, we start with a medium which gives you more margin for error. Unfortunately, 35mm film is costly and during the early days of educational television, will be completely impractical as a recording medium, except in special cases.
This leaves us then with 16mm film as our recording medium. This leaves us also with a difficult assignment if we are to achieve high quality. The margin for error is very slight.
Perhaps what most people do not realize who are entering this business, is the fact that a good kine recording is much more than the output of a good kine recording devices All elements in the system must be working as near optimum as possible.
Of first importance is lighting. Image orthicon tubes which are used in television cameras are extremely sensitive and can operate at very low light levels» But they work better at higher light levels» The output picture will be quieter in the sense that it will have less grain if at least 75 foot candles of key lighting are available in the studio. Then we can operate the image orthicon in its most favorable rangeo
With this basic level of light it is now important to create the illusion of depth and to minimize the flatness of a television image. Afterall, television is a monocular medium (a one-eyed monster). The only way in which the illusion of depth in a picture can be created is in the skillful use of lightinge We have found that lighting a subject from overhead in such a way that light hits the back of his shoulders will set the subject away from the scenery. If you watch big television shows you will notice that this is done. The depth effect can be further accentuated by the skillful use of spot lights and shadowse These are achieved by lighting one side of the subject to a higher level than the othere This latter type of lighting is known as modelinge With modeling and back lighting we can create the illusion of depth in a television image and give ita character which improves the
overall quality>