Treffer: Comparison between the effective pictorial information capacities of JPEG 6b and 2000

Title:
Comparison between the effective pictorial information capacities of JPEG 6b and 2000
Authors:
JENKIN, R. B, RICHARDSON, M. A
Source:
Opto-Ireland 2005 (imaging and vision)0Imaging and vision. :13-19
Publisher Information:
Bellingham, Wash: SPIE, 2005.
Publication Year:
2005
Physical Description:
print, 20 ref 1
Original Material:
INIST-CNRS
Subject Terms:
Electronics, Electronique, Optics, Optique, Physics, Physique, Sciences exactes et technologie, Exact sciences and technology, Physique, Physics, Domaines classiques de la physique (y compris les applications), Fundamental areas of phenomenology (including applications), Optique, Optics, Formation des images et traitement optique, Imaging and optical processing, Fonctions de transfert optique et de transfert de modulation, Modulation and optical transfer functions, Fonction transfert modulation, Modulation transfer function, Función transferencia modulación, Fonction étalement point, Point spread functions, Norme ISO, ISO, 4230L
Document Type:
Konferenz Conference Paper
File Description:
text
Language:
English
Author Affiliations:
Cranfield University, Royal Military College of Science, Shrivenham, SN6 8LA, United Kingdom
ISSN:
0277-786X
Access URL:
http://pascal-francis.inist.fr/vibad/index.php?action=search&terms=17852895
Rights:
Copyright 2006 INIST-CNRS
CC BY 4.0
Sauf mention contraire ci-dessus, le contenu de cette notice bibliographique peut être utilisé dans le cadre d’une licence CC BY 4.0 Inist-CNRS / Unless otherwise stated above, the content of this bibliographic record may be used under a CC BY 4.0 licence by Inist-CNRS / A menos que se haya señalado antes, el contenido de este registro bibliográfico puede ser utilizado al amparo de una licencia CC BY 4.0 Inist-CNRS
Notes:
Physics: optics
Accession Number:
edscal.17852895
Database:
PASCAL Archive

Weitere Informationen

The evaluation of the Modulation Transfer Function of JPEG compression provides significant challenges because of its non-linear and non-stationary nature. Previous works have documented the calculation of the First Order Wiener Kernel to estimate the linear portion of the Modulation Transfer Function of JPEG 6b and 2000 and compared that to measurements made using ISO 12233 and traditional edge techniques. The First Order Weiner Kernel was argued as representing the overall pictorial effect of the compression techniques more closely than measurement procedures relying on a small portion of the field of view. This work directly compares the results for JPEG 6b and 2000. Additional work attempts to calculate an 'effective' Point Spread Function based on the estimated MTF for the compression systems. These results are then combined with estimates of RMS noise to produce an approximation for the effective pictorial information capacity (EPIC) of the system. It is shown that there is a good degree of correlation between the actual bit rate used to encode the image and the system EPIC for monochrome images. This correlation breaks down when red, green or blue channels are analyzed individually.