6.1 A 1/1.7-inch 20Mpixel Back-illuminated stacked CMOS image sensor for new imaging applications

2015 IEEE International Solid-State Circuits Conference - (ISSCC) Digest of Technical Papers Pub Date : 2015-03-19 DOI:10.1109/ISSCC.2015.7062950

A. Suzuki, Nobutaka Shimamura, T. Kainuma, N. Kawazu, Chihiro Okada, Takumi Oka, K. Koiso, A. Masagaki, Yoichi Yagasaki, Shigeru Gonoi, T. Ichikawa, Masatoshi Mizuno, Tatsuya Sugioka, T. Morikawa, Y. Inada, H. Wakabayashi

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引用次数: 41

Abstract

The demand for low-noise (for capturing a clear image in low-light conditions), high-speed (for slow-motion applications and reducing rolling shutter distortion) and high-resolution (for formats beyond 4K) CMOS image sensors is still increasing. In addition, the emerging camcorder market typified by handsfree devices requires the simultaneous capture of still and moving images. To improve noise performance, a method of pseudo-multiple sampling has been proposed [1]. However, the noise reduction effect is insufficient due to the non-uniformity of the CDS period. For high frame rates, multichannel and high-data-rate interfaces have been reported [2-4]. For simultaneous capture of still and moving images, a seamless mode change has been shown [5], but it is necessary to convert a still image (full pixel data) to a moving image (2×2 binning data) by an external DSP.

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6.1 1/1.7英寸2000万像素背光堆叠CMOS图像传感器，用于新的成像应用

对低噪声(在弱光条件下捕捉清晰图像)、高速(用于慢动作应用和减少滚动快门失真)和高分辨率(用于4K以上格式)CMOS图像传感器的需求仍在增加。此外，以免提设备为代表的新兴摄像机市场要求同时捕捉静止和运动图像。为了提高噪声性能，提出了一种伪多次采样的方法[1]。但由于CDS周期的不均匀性，降噪效果不足。对于高帧速率，多通道和高数据速率接口已经被报道[2-4]。对于同时捕获静止和运动图像，已经显示了无缝模式变化[5]，但需要通过外部DSP将静止图像(全像素数据)转换为运动图像(2×2帧数据)。

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2015 IEEE International Solid-State Circuits Conference - (ISSCC) Digest of Technical Papers

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