SMPTE RP 202-2008
- Video Alignment for Compression Coding (Revision of RP 202-2000)
- standard by Society of Motion Picture and Television Engineers,
- Category: SMPTE
$50.00
$25.00
Over multiple compression and decompression cycles, it is highly desirable to maintain the original positioningof the video signal within the raster. Less obvious, but just as important, is the need for macroblock alignmentto reduce artifacts among encoders and decoders from various equipment vendors. If concatenated encodersdo not share common macroblock boundaries, then additional quantization noise, motion-estimation errors,and poor mode decisions may result. Likewise, encoding decisions that may be carried through theproduction and post-production process with recoding data present will rely upon macroblock alignment.Conforming to this practice will minimize artifacts in multiple generations of compression (bit-rate reduction)encoding and decoding by optimizing macroblock alignment.
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