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噪声与 图像质量（image quality，IQ） 息息相关，同时也决定了传感器的灵敏度。 这里介绍下FPN，其为出现在图像中 固定位置的噪声。 用于拍摄静态图像的图像传感器会重新生成二维图像 (空间)信息。 因为在空间上是固定的，所以黑暗情况下的固定模式噪声原则上可以通过信号处理消除。 随时间变化的噪声 被称为 "随机"（random）或者TN。 当所指的是随时间变化的噪声时一般使用"暂态"这一 称谓, 因为"随机"也可以与FPN联系起来。 例如，"像素随机"（pixel …

2010年2月17日 · Random telegraph signal (RTS) noise has thus become an issue for low light level applications especially in the context of downscaling transistor dimension. This paper describes the analysis of in-pixel source follower transistor RTS noise filtering by CDS circuit.

For the first time, RTS is observed and studied in pinned-photodiode CMOS image sensor pixels. For imagers made in a 0.18µm CMOS process, the actual dominating pixel read noise is discrete and dominated by a single interface trap in the SF. The CDS influence on RTS noise highly depends on the CDS period and the trap properties. The overall pixel

Inspired by this, a dual-branch vision transformer with Real-Time Share feature was proposed during the encoding process for retinal image classification tasks. The approach processes image patches of varying sizes (base and large) through two independent branches and implements multi-stage Real-Time feature fusion via the Real-Time Share ...

2009年8月18日 · A new automated method able to detect multilevel random telegraph signals (RTS) in pixel arrays and to extract their main characteristics is presented. The proposed method is applied to several proton irradiated pixel arrays manufactured using a 0.18 mum CMOS process dedicated to imaging.

Random telegraph signal (RTS) in current-voltage characteristics of MOSFETs occurs due to the capture and emission of a channel carrier(s) by a gate insulator trap(s) [1]. RTS noise (RTN) in CMOS image sensors is becoming more important as being a major noise source in low noise CMOS image sensors [2-3].

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