图像传感器
CMOS传感器
像素
彩色滤光片阵列
计算机科学
CMOS芯片
摄像头模块
炸薯条
图像分辨率
点间距
高清电视
计算机视觉
彩色凝胶
人工智能
材料科学
光电子学
电信
薄膜晶体管
复合材料
图层(电子)
作者
Ryohei Funatsu,Takayuki Yamashita,Kohji Mitani,Yuji Nojiri
摘要
To develop an ultrahigh-definition television (UHDTV) camera-with a resolution 16 times higher than that of HDTV resolution and a frame rate of 60 Hz (progressive)-a compact and high-mobility UHDTV camera using a 33M-pixel CMOS image sensor to provide single-chip color imaging was developed. The sensor has a Bayer color-filter array (CFA), and its output signal format is compatible with the conventional UHDTV camera that uses four 8M-pixel image sensors. The theoretical MTF characteristics of the single-chip camera and a conventional four-8M-pixel CMOS camera were first calculated. A new technique for Bayer CFA demosaicing used for the single-chip UHDTV camera was then evaluated. Finally, a pick-up system for single-chip imaging with a 33M-pixel color CMOS image sensor was measured. The measurement results show that the resolution of this is equivalent to or surpasses that of the conventional four-8M-pixel CMOS camera. The possibility of a practical compact UHDTV camera that makes use of single-chip color imaging was thereby confirmed.
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