【摘要】 目的　降低科学级 CCD相机的噪声 ,提高成像质量 .方法　分析噪声特性 ,研究相应的降噪方法 ,设计信号处理电路 .结果　该电路能有效地降低暗电流噪声和消除复位噪声 .结论　实验结果表明该方法能降低噪声 ,提高信噪比 ,改善图像质量更多还原

【Abstract】 Aim\ In order to reduce the noise of scientific grade CCD camera and improve the image quality.Methods\ The noise characteristic of CCD image sensor analyzed. Noise suppression method and signal processing circuit are described and designed analyzed. Results\ The circuit can reduce the dark current noise and eliminate the reset noise effectively.Conclusion\ Experiments prove that the presented method can reduce noise, increase signal to noise ratio and improve image quality.更多还原