The effective detection for point target in low SNR IR images is dependent greatly on the suppression of background clutter.

低信噪比条件下点目标的检测性能在很大程度上依赖于对红外背景杂波的抑制情况。

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So this paper research off line handwriting verification of text dependent based on the background.

本文正是基于高自考这样的背景，来研究基于文本依存的离线笔迹鉴别。

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In this paper it is pointed out that the noise in a CCD image will be mainly the Poisson noise, which is the signal-dependent noise, with the technological background of CCD images.

本文以CCD图象为技术背景，指出CCD图象噪声主要将以与信号有关的泊松噪声形式存在。

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