Objective Measurement Methods of Motion Artifacts for 45-Mbit, NTSC, DPCM, Bit-Reduction Video Codecs
Measurement methods are presented for objectively testing the effects of the motion prediction algorithms used in bit-reduction video coder/decoders (codecs) employing differential pulse-code modulation (DPCM) quantizing of NTSC signals. The objective testing method described utilizes a series of new test signals for measuring the video distortions of dynamic signals as a result of the bit-reduction process. By using these proposed test signals, the artifacts of slope overload, edge jitter, quantizing error, prediction error, phase jitter, and signal-to-noise ratio (SNR) can be measured accurately and with repeatability. These test methods can also measure the effects of the coding algorithm on dynamic resolution and temporal response.
- Print ISSN
- 0036-1682
- Published
- 1990-03
- Content type
- Original Research
- DOI
- 10.5594/J03921
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