Title :
Wide dynamic range HDTV image sensor with aliasing suppression
Author :
Nishida, Yasuaki ; Koike, Junro ; Watanabe, Toshihide ; Iino, Yutaka ; Ohtake, Hiroshi ; Abe, Masahide ; Yoshikawa, Shigeo
Author_Institution :
NHK Sci. & Tech. Res. Lab., Tokyo, Japan
fDate :
8/1/1988 12:00:00 AM
Abstract :
A 2-megapixel CCD image sensor for a high-definition TV (HDTV) camera is proposed, in which signal processing in vertical CCD (charge-coupled device) registers and sub-Nyquist sampling are used. This sensor produces high-resolution (37-MHz horizontal scan frequency), suppresses aliasing, and also use a lower drive-clock frequency (18.5 MHz). Several imaging techniques are proposed for producing high-quality high-definition TV (HDTV) cameras. These are: temporally and specially offset imaging and at 3-CCD color imaging system using the proposed CCDs. The computer-simulated system is presented. The overall performance of the proposed CCD sensor and 3-CCD color imaging system are summarized.
Keywords :
CCD image sensors; high definition television; signal processing equipment; television cameras; 3-CCD colour imaging system; CCD image sensor; HDTV camera; HDTV image sensor; aliasing suppression; charge-coupled device; computer-simulated system; high-definition TV; imaging techniques; signal processing; specially offset imaging; sub-Nyquist sampling; temporally offset imaging; Charge coupled devices; Charge-coupled image sensors; Color; Dynamic range; Frequency; HDTV; High-resolution imaging; Image sampling; Image sensors; Signal processing;
Journal_Title :
Consumer Electronics, IEEE Transactions on
