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首页> 外文会议>Society of Motion Picture and Television Engineers Annual Technical Conference and Exhibition >Development of a 70mm, 25 megapixel Electronic Cinematography Camera with Integrated Flash Recorder
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Development of a 70mm, 25 megapixel Electronic Cinematography Camera with Integrated Flash Recorder

机译：开发70毫米，2500万像素电子电影摄影相机，集成闪存器

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摘要

This paper will describe the system design of the world's first 70mm, 25 megapixel, electronic-cinematography camera with an integrated flash memory recorder. Although this camera shares many of the attributes of NHK's Ultra High Definition Television and benefits from NHK's pioneering research in the area of very high-resolution imaging, what we are about to describe is an electronic cinematography camera and recorder - not a television camera. While the unique requirements of the cinematographic process allow us to take advantage of certain processes that would not be practical in a television environment, we must also make provision for requirements that are unique to movie making. The single CMOS sensor in the new Panavision camera has the same four times HDTV horizontal resolution of 7680 photo-sites as that proposed by NHK for UHDTV. Our sensor's vertical resolution is only three times the HDTV vertical for a resolution of 3240 photo-sites and an aspect ratio of 2.37:1 rather than UHDTV's 16 × 9, 1.78:1 aspect ratio. Bucking the recent trend to take a lower resolution imager and interpolate to a higher resolution, the Panavision camera utilizes an oversampling technique to output a full bandwidth 19 megapixel RGB image from the available 25 million photo-sites. The recorded frame size is 3840 × 1620 × 3 (RGB) or 18,662,400 pixels.
机译：本文将描述世界上第一个70毫米，2500万像素，电子电影摄像机的系统设计，采用集成的闪存记录器。虽然这款相机分享了NHK超高清电视的许多属性，但来自NHK在非常高分辨率的成像领域的NHK开创性研究的好处，但我们要描述的是电子电影摄影相机和录音机 - 而不是电视摄像头。虽然电影摄影过程的独特要求允许我们利用电视环境中不实用的某些过程，但我们还必须为电影制作的要求提供规定。新的Panavimision相机中的单个CMOS传感器具有相同的四倍HDTV水平分辨率为7680个照片，如NHK为UHDTV提出的。我们的传感器的垂直分辨率仅为HDTV垂直的三倍，用于分辨率为3240光点，纵横比为2.37：1而不是UHDTV的16×9,1.78：1纵横比。支付最近的趋势来采用较低的分辨率成像器并插入到更高的分辨率，Panavision相机利用过采样技术从可用的2500万照片站点输出完整的带宽19百万像素RGB图像。记录的帧尺寸为3840×1620×3（RGB）或18,662,400像素。

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