Super high definition image digitizing system

Author

Furukawa, Isao ; Kashiwabuchi, Kazunobu ; Ono, Sadayasu

Author_Institution

NTT Transmission Syst. Labs., Kanagawa, Japan

Volume

3

fYear

1992

fDate

23-26 Mar 1992

Firstpage

529

Abstract

A very-high-resolution image digitizing system that handles both still and motion images is presented. The system mainly consists of a high-resolution CCD line scanner and high-precision film transport equipment. Resolution characteristics are measured directly using test charts, and resolution of over 2048 pixels is obtained in both the vertical and horizontal direction. Therefore, this system can generate test sequences for super-high-definition images that have at least 2048×2048 pixels. Various corrections, such as shading-, gamma-, and color-correction and edge enhancement, are made, and good reproductions of original photo images are obtained. Sixteen standard images are digitized and prepared for coding simulations and other applications

Keywords

image coding; image processing equipment; image scanners; optical resolving power; 2048 pixels; 4194304 pixels; CCD line scanner; coding simulations; color-correction; edge enhancement; gamma correction; high-precision film transport equipment; motion images; shading correction; still images; super-high-definition images; very-high-resolution image digitizing system; Charge coupled devices; Focusing; Image communication; Image resolution; Microcomputers; Optical films; Optical filters; Pixel; Printing; System testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 1992. ICASSP-92., 1992 IEEE International Conference on

Conference_Location

San Francisco, CA

ISSN

1520-6149

Print_ISBN

0-7803-0532-9

Type

conf

DOI

10.1109/ICASSP.1992.226159

Filename

226159