JPEG2000 encoding with perceptual distortion control. |
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Authors: | Zhen Liu Lina J Karam Andrew B Watson |
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Affiliation: | Qualcomm, San Diego, CA 92121, USA. zhenl@qualcomm.com |
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Abstract: | In this paper, a new encoding approach is proposed to control the JPEG2000 encoding in order to reach a desired perceptual quality. The new method is based on a vision model that incorporates various masking effects of human visual perception and a perceptual distortion metric that takes spatial and spectral summation of individual quantization errors into account. Compared with the conventional rate-based distortion minimization JPEG2000 encoding, the new method provides a way to generate consistent quality images at a lower bit rate. |
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