SP-424 The Voyage of Mariner
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Fig. B-2. The small area circled on
the picture of Mercury (Caloris Basin) is enlarged to show the
individual picture elements (pixels) that make up the picture. Each
of these elements is transmitted from the spacecraft as a binary
number which the ground computer processes through phototerminals
into the reconstructed picture to duplicate the picture originally
recorded on the vidicon aboard the spacecraft.
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