A filter based bit allocation scheme for subband compression of HDTV

Woods, John W.; Naveen, T.

doi:10.1109/83.148618

Cited by 83 publications

(23 citation statements)

References 12 publications

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“…With the following theorems, we establish the effect of RDWT synthesis on this noise; we note that a similar procedure was used in [13] to analyze the critically sampled DWT. Throughout, C ∞ denotes the space of infinite-dimensional sequences.…”

Section: Additive Noise In the Rdwt Domainmentioning

confidence: 99%

The redundant discrete wavelet transform and additive noise

Fowler¹

2005

IEEE Signal Process. Lett.

271

145

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Abstract-The behavior under additive noise of the redundant discrete wavelet transform (RDWT), a frame expansion that is essentially an undecimated discrete wavelet transform, is studied. Known prior results in the form of inequalities bound distortion energy in the original signal domain from additive noise in frame-expansion coefficients. In this paper, a precise relationship between RDWT-domain and original-signal-domain distortion for additive white noise in the RDWT domain is derived.Index Terms-redundant wavelet transform, frame expansion, additive noise

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Section: Additive Noise In the Rdwt Domainmentioning

confidence: 99%

The redundant discrete wavelet transform and additive noise

Fowler¹

2005

IEEE Signal Process. Lett.

271

145

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“…They optimize the trade-off of the rate between motion vectors and 3-D subbands [CW99] and consider digital cinema applications [CW02]. A bit allocation scheme for subband compression of HDTV is published in [WN92]. For video communication over wireless channels, Chou and Chen propose a perceptually optimized 3-D subband codec [CC96].…”

Section: Motion Compensation and Subband Codingmentioning

confidence: 99%

Video Coding with Superimposed Motion-Compensated Signals

Flierl¹

2004

The International Series in Engineering and Computer Science

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“…The represents any subband, i.e., , where is the decomposition level. By applying the analytic method mentioned in [17], is derived and the results are listed in Table I. As mentioned in Section II-A, a subband is divided into several code blocks.…”

Section: A Image Quality Controlmentioning

confidence: 99%

“…An indicator of whether belongs to Pass 2 or not, , is defined as (15) With , the bit counts, , in the bit plane is computed by (16) where is complement operator and is that the truncation point, , is Pass 1 in the th bit plane. Then, is obtained by (17) …”

Section: B Rate Estimationmentioning

confidence: 99%

Precompression Quality-Control Algorithm for JPEG 2000

Chang

Fang

Cheng

et al. 2006

IEEE Trans. on Image Process.

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Abstract-In this paper, a precompression quality-control algorithm is proposed. It can greatly reduce computational power of the embedded block coding (EBC) and memory requirement to buffer bit streams. By using the propagation property and the randomness property of the EBC algorithm, rate and distortion of coding passes is approximately predicted. Thus, the truncation points are chosen before actual coding by the entropy coder. Therefore, the computational power, which is measured with the number of contexts to be processed, is greatly reduced since most of the computations are skipped. The memory requirement, which is measured with the amount required to buffer bit streams, is also reduced since the skipped contexts do not generate bit streams. Experimental results show that the proposed algorithm reduces the computational power of the EBC by 80% on average at 0.8 bpp compared with the conventional postcompression rate-distortion optimization algorithm [1]. Moreover, the memory requirement is also reduced by 90%. The average PSNR degrades only about 0.1 0.3 dB, on average.

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A filter based bit allocation scheme for subband compression of HDTV

Cited by 83 publications

References 12 publications

The redundant discrete wavelet transform and additive noise

The redundant discrete wavelet transform and additive noise

Video Coding with Superimposed Motion-Compensated Signals

Precompression Quality-Control Algorithm for JPEG 2000

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