Image and Video Compression Standards: Algorithms and Architectures
Image and Video Compression Standards: Algorithms and Architectures
A locally adaptive perceptual masking threshold model for image coding
ICASSP '96 Proceedings of the Acoustics, Speech, and Signal Processing, 1996. on Conference Proceedings., 1996 IEEE International Conference - Volume 04
The JPEG2000 still image coding system: an overview
IEEE Transactions on Consumer Electronics
The LOCO-I lossless image compression algorithm: principles and standardization into JPEG-LS
IEEE Transactions on Image Processing
Locally adaptive perceptual image coding
IEEE Transactions on Image Processing
Adaptive image coding with perceptual distortion control
IEEE Transactions on Image Processing
A perceptually tuned subband image coder based on the measure of just-noticeable-distortion profile
IEEE Transactions on Circuits and Systems for Video Technology
A perceptually optimized 3-D subband codec for video communication over wireless channels
IEEE Transactions on Circuits and Systems for Video Technology
Subband DCT: definition, analysis, and applications
IEEE Transactions on Circuits and Systems for Video Technology
IEEE Transactions on Circuits and Systems for Video Technology
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This paper presents a perceptually tuned subband image coder, which selectively operates on the subbands of an image to achieve good compression ratio. The proposed encoder divides an image into 8 脳 8 sub-images and subsequently decomposes each sub-image into four subbands. A just noticeable distortion (JND) model is employed to remove all the perceptually insignificant subbands from the sub-images. The remaining subbands are processed by the subband discrete cosine transform (SBDCT). This reduces the computational cost of the SBDCT without introducing perceptible distortion. To further reduce the perceptual redundancy in the image, an image-dependent quantization matrix is computed from the JND profile of the image. Our simulation results indicate that our proposed encoder outperforms the JPEG baseline coder at bit rates from 0.25 to 0.9 bpp.