title: JPEG2000 encoding with perceptual distortion control.
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.
authors.affiliation: Qualcomm, San Diego, CA 92121, USA. zhenl@qualcomm.com
authors.forename: Zhen
authors.initials: Z
authors.lastname: Liu
authors.forename: Lina J
authors.initials: LJ
authors.lastname: Karam
authors.forename: Andrew B
authors.initials: AB
authors.lastname: Watson
mesh_terms: D000465:Algorithms; D016477:Artifacts; D003196:Computer Graphics; D044962:Data Compression / Q000379:methods*; D007089:Image Enhancement / Q000379:methods*; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*; D009716:Numerical Analysis, Computer-Assisted; D010363:Pattern Recognition, Automated / Q000379:methods*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D012815:Signal Processing, Computer-Assisted