Title :
Super high definition image digitizing system
Author :
Furukawa, Isao ; Kashiwabuchi, Kazunobu ; Ono, Sadayasu
Author_Institution :
NTT Transmission Syst. Labs., Kanagawa, Japan
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;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1992. ICASSP-92., 1992 IEEE International Conference on
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-0532-9
DOI :
10.1109/ICASSP.1992.226159
