&lt;title&gt;Digital HDTV compression at 44 Mbps using parallel motion-compensated transform coders&lt;/title&gt;

Hang, Hsueh-Ming; Leonardi, Riccardo; Haskell, Barry G.; Schmidt, Robert; Bheda, H.; Othmer, J.

doi:10.1117/12.24191

Cited by 4 publications

(3 citation statements)

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“…A compatible HDTV/TV system using a similar decomposition was proposed in [48]. It was noted in [47] that the scheme was sensitive to errors in the subbands, which could add up after reconstruction. This problem is particularly pronounced if motion artifacts occur.…”

Section: Ii:i I I Iiii!iiiiii!iiiii!iiiii Codinmentioning

confidence: 99%

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Multiresolution coding techniques for digital television: A review

Vetterli

1992

Multidim Syst Sign Process

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Abstract. Mtdtiresolution decompositions for video coding are reviewed. Both nonrecursive and recursive coding schemes are considered. In nonrecursive schemes, it is shown that pyramid structures have certain advantages over subband or wavelet techniques, and a specific spafiotemporal pyramid coding of HDTV is discussed in some detail. It is shown that recursive, DPCM like schemes will incur a slight loss of optimality due to a restricted form of prediction if multiresolution decomposition with compatible decoding is required. Compatibility and transmission issues are also discussed. Multiresolution transmission for digital broadcast TV is introduced. This, when combined with mulfiresolution source coding, achieves spectrum efficiency, robnstness and graceful degradation under channel impairments.

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Section: Ii:i I I Iiii!iiiiii!iiiii!iiiii Codinmentioning

confidence: 99%

“…The first method, which is to start with a multiresolution decomposition followed by independent DPCM loops (HMCP-DCTs), was investigated in [24], [46], [47] using subband decomposition. A compatible HDTV/TV system using a similar decomposition was proposed in [48].…”

Section: Ii:i I I Iiii!iiiiii!iiiii!iiiii Codinmentioning

confidence: 99%

Multiresolution coding techniques for digital television: A review

Vetterli

1992

Multidim Syst Sign Process

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“…This would allow HDTV to be transmitted on current vacant NTSC channels. 54 For voice-band videotelephony, target bit rates are in the range of 8 to 40 kbps.…”

Section: Introductionmentioning

confidence: 99%

Image and Video Compression: A Review

Podilchuk

Safranek

1997

Selected Topics in Electronics and Systems

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The area of image and video compression has made tremendous progress over the last several decades. The successes in image compression are due to advances and better understanding of waveform coding methods which take advantage of the signal statistics, perceptual methods which take advantage of psychovisual properties of the human visual system (HVS) and object-based models especially for very low bit rate work. Recent years have produced several image coding standards-JPEG for still image compression and H.261, MPEG-I and MPEG-II for video compression. While we have devoted a special section in this paper to cover international coding standards because of their practical value, we have also covered a large class of nonstandard coding technology in the interest of completeness and potential future value. Very low bit rate video coding remains a challenging problem as does our understanding of the human visual system for perceptually optimum compression.The wide range of applications and bit rates, from video telephony at rates as low as 9.6 kbps to HDTV at 20 Mbps and higher, has acted as a catalyst for generating new ideas in tackling the different challenges characterized by the particular application. The area of image compression will remain an interesting and fruitful area of research as we focus on combining source coding with channel coding and multimedia networking.

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