| 三洋摄像机调焦聚焦噪声抑制技术研究 |
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| 引用本文： | 杨毅,宋辉,刘加.三洋摄像机调焦聚焦噪声抑制技术研究[J].信号处理,2011,27(4):596-599. |
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| 作者姓名： | 杨毅 宋辉 刘加 |
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| 作者单位： | 清华大学电子工程系,清华信息科学与技术国家实验室,北京100084 |
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| 摘 要： | 类似数字摄像机的视频采集系统在摄像头缩放或自动对焦时产生较大声噪,回放时主观听觉十分明显.因此需要研究一种抑制一种语音降噪算法,用于消除马达高速旋转引起的可感知机械干扰声噪.本文提出能够平滑调焦和自动聚焦及语音增强的方案.通过改进的鲁棒自适应麦克风阵列方法从带噪信号中恢复语音;同时采用子带后处理法进一步降噪,保证稳定性...
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| 关 键 词： | 调焦和自动聚焦噪声 噪声消除 麦克风阵列 子带后处理 三洋摄像机 |
Research on SANYO Camera focus-on Noise Suppression Technologies |
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| YANG Yi,SONG Hui,LIU Jia.Research on SANYO Camera focus-on Noise Suppression Technologies[J].Signal Processing,2011,27(4):596-599. |
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| Authors: | YANG Yi SONG Hui LIU Jia |
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| Institution: | YANG Yi SONG Hui LIU Jia (Tsinghua National Laboratory for Information Science and Technology Department of Electronic Engineering,Tsinghua University,Beijing 100084,China) |
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| Abstract: | Video recording equipment such as digital cameras often generates mechanical noise when zooming or auto-focusing. The subjective auditory perception is obviously during playback of video.One of the most important challenges is to research a new noise suppression algorithm to minimize the noticeable loud mechanical interference caused by high-speed operation of motors.In this paper, we proposed some technologies enable to smooth zooming and auto-focusing noise and enhance speech.A Modified Microphone Array i... |
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| Keywords: | Zooming and auto-focusing Noise Noise Reduction Microphone Array Subband post-filtering SANYO camera |
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