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Technology review

Video compression

It is known that the television signal is a combination of the luminance signal Y and two chroma signals U and V. Variations in their values allow 256 levels (from 0 to 255 for Y, and -128 to 127 for U / V), which in binary terms, corresponding to 8 bits (bit) or 1 byte (Byte).

Video Compression formats

At first glance, here lies a paradox: S-Video signal with less than DV resolution, however, requires greater flow. The explanation is simple - in fact DV-encoding is slightly different from MJPEG. Thus, DV uses the 4:2:0 principle the idea that compared to the 4:2:2 save 25%.

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