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formats yield low resolution for left and right images (both left and right images are hori-
zontallydown-sampled).Duetotheflexibilityofrenderinginteractivestereoscopicvideo,
colourplusdepthrepresentationhasbeentestedoverbroadcastingchannels [68] [24]. The
approach in [68] utilizes the “private” or “user data” of the MPEG-2 Transport Stream to
send the depth information [69], whereas the multiplexing of colour plus depth within the
MPEG-2 Transport Stream is studied in [24]. Moreover, the latter approach is now stand-
ardised as an amendment ISO/IEC 13818-1 (MPEG-2 Transport Stream) [70].
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