Robust optimal post-filter in oversampled lapped transform: Theory and application in image coding

Sheng, Yuxia; Chai, Lu; Zhang, Jingxin

doi:10.1016/j.sigpro.2013.03.019

Search citation statements

Order By: Relevance

Paper Sections

Select...

Analytical Formulae For Zero Mean Sources1

Introduction1

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2013

2014

Publication Types

Select...

Article1

Other1

Relationship

Self Cite1

Independent1

Authors

Journals

Cited by 2 publications

(2 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…andq opt is given by (16). By some basic calculus techniques, the optimal parameter α can be computed easily…”

Section: Analytical Formulae For Zero Mean Sourcesmentioning

confidence: 99%

See 1 more Smart Citation

Optimal Design of Multichannel Equalizers for the Structural Similarity Index

Chai

Sheng

2014

IEEE Trans. on Image Process.

Self Cite

View full text Add to dashboard Cite

The optimization of multichannel equalizers is studied for the structural similarity (SSIM) criteria. The closed-form formula is provided for the optimal equalizer when the mean of the source is zero. The formula shows that the equalizer with maximal SSIM index is equal to the one with minimal mean square error (MSE) multiplied by a positive real number, which is shown to be equal to the inverse of the achieved SSIM index. The relation of the maximal SSIM index to the minimal MSE is also established for given blurring filters and fixed length equalizers. An algorithm is also presented to compute the suboptimal equalizer for the general sources. Various numerical examples are given to demonstrate the effectiveness of the results.

show abstract

“…andq opt is given by (16). By some basic calculus techniques, the optimal parameter α can be computed easily…”

Section: Analytical Formulae For Zero Mean Sourcesmentioning

confidence: 99%

“…(iv) A sub-optimal solution is given when the mean of the original image is not zero. There have been various methods to design the optimal synthesis filter bank with MSE or MSE-reduced criteria [13]- [16]. It is natural to introduce SSIM index into the optimal design of filter banks.…”

Section: Introductionmentioning

confidence: 99%