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ICASSP '86. IEEE International Conference on Acoustics, Speech, and Signal Processing, 1986
Subband coding has become quite popular for the source encoding of speech. This paper presents a simple yet efficient extension of this concept to the source coding of images. We specify the constraints for a set of two-dimensional quadrature mirror filters (QMF's) for a particular frequency-domain partition, and show that these constraints are ...
J. Woods, S. O'Neil
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Subband coding has become quite popular for the source encoding of speech. This paper presents a simple yet efficient extension of this concept to the source coding of images. We specify the constraints for a set of two-dimensional quadrature mirror filters (QMF's) for a particular frequency-domain partition, and show that these constraints are ...
J. Woods, S. O'Neil
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Lifting scheme and image coding: average interpolating image coding
Proceedings of the Sixth International Symposium on Signal Processing and its Applications (Cat.No.01EX467), 2002A lifting scheme, from new wavelet research, can be used to implement the existing wavelets and to construct completely new wavelets. We construct the average interpolating wavelet of 2 degree and apply it to image coding; finally, we get an image coding result as good as, if not better than, that of the D9/7 recommended by JPEG2000 draft.
null Zeng Jianfen, null Ma Zhengming
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IEEE Transactions on Image Processing, 1992
The authors consider the encoding of image subbands with a tree code that is asymptotically optimal for Gaussian sources and the mean squared error (MSE) distortion measure. They first prove that optimal encoding of ideally filtered subbands of a Gaussian image source achieves the rate distortion bound for the MSE distortion measure.
S, Nanda, W A, Pearlman
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The authors consider the encoding of image subbands with a tree code that is asymptotically optimal for Gaussian sources and the mean squared error (MSE) distortion measure. They first prove that optimal encoding of ideally filtered subbands of a Gaussian image source achieves the rate distortion bound for the MSE distortion measure.
S, Nanda, W A, Pearlman
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Dual-coded compressive hyperspectral imaging
Optics Letters, 2014This Letter presents a new snapshot approach to hyperspectral imaging via dual-optical coding and compressive computational reconstruction. We demonstrate that two high-speed spatial light modulators, located conjugate to the image and spectral plane, respectively, can code the hyperspectral datacube into a single sensor image such that the high ...
Xing, Lin +3 more
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Improved transform coding (imaging coding)
International Conference on Acoustics, Speech, and Signal Processing, 2003A novel method for coding of images using the discrete cosine transform is presented. It is based on a modification of the idea of reducing subthreshold coefficients to zero during transform coding. A simple analysis shows that if the subthreshold coefficients are represented by reduced magnitudes other than zero, then the net error that results in a ...
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IEEE Transactions on Information Theory, 1977
Rate-distortion functions for 2-dimensional homogeneous isotropic images are compared with the performance of five source encoders designed for such images. Both unweighted and frequency weighted mean-square error distortion measures are considered. The coders considered are a) differential pulse code modulation (DPCM) using six previous samples or ...
O'Neal, John B. jun., Rajnatarjan, T.
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Rate-distortion functions for 2-dimensional homogeneous isotropic images are compared with the performance of five source encoders designed for such images. Both unweighted and frequency weighted mean-square error distortion measures are considered. The coders considered are a) differential pulse code modulation (DPCM) using six previous samples or ...
O'Neal, John B. jun., Rajnatarjan, T.
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Proceedings of the May 19-22, 1980, national computer conference on - AFIPS '80, 1980
Facsimile image coding has recently received a lot of attention because of the standardization work being done in this area by the International Telegraph and Telephone Consultative Committee (CCITT). In November, 1977, CCITT Study Group XIV standardized a one-dimensional data compression scheme for facsimile images.
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Facsimile image coding has recently received a lot of attention because of the standardization work being done in this area by the International Telegraph and Telephone Consultative Committee (CCITT). In November, 1977, CCITT Study Group XIV standardized a one-dimensional data compression scheme for facsimile images.
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Image coding and the coding standards
6th International Conference on Image Processing and its Applications, 1997For our purposes, it is the development of the processing algorithms which is of interest, together with the international determination to produce a set of standards, without which image coding activity in general would have the same status as that of facsimile transmission before a similar move some years ago totally changed the situation and made ...
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1980
In a photographic camera, the camera lens forms an image of the object and the image is detected by the photographic film. In the Anger camera described in Chapter 4, the pinhole aperture or the multihole collimator performs the imaging operation while a detector system consisting of a scintillation crystal and an arrangement of photomultiplier tubes ...
R. G. Simpson, H. H. Barrett
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In a photographic camera, the camera lens forms an image of the object and the image is detected by the photographic film. In the Anger camera described in Chapter 4, the pinhole aperture or the multihole collimator performs the imaging operation while a detector system consisting of a scintillation crystal and an arrangement of photomultiplier tubes ...
R. G. Simpson, H. H. Barrett
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Proceedings of ISCAS'95 - International Symposium on Circuits and Systems, 2002
An approach to stereo image coding based on disparity compensation and subspace projection is proposed and evaluated. Traditional stereo image coding techniques employing block-based disparity compensation have problems with occlusion regions and photometric variations.
H. Aydinoglu, M.H. Hayes
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An approach to stereo image coding based on disparity compensation and subspace projection is proposed and evaluated. Traditional stereo image coding techniques employing block-based disparity compensation have problems with occlusion regions and photometric variations.
H. Aydinoglu, M.H. Hayes
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