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    • 2. 发明申请
    • Adaptive mode control apparatus and method for adaptive beamforming based on detection of user direction sound
    • 基于用户方向声音检测的自适应波束成形自适应模式控制装置及方法
    • US20090304200A1
    • 2009-12-10
    • US12455873
    • 2009-06-09
    • Hyun-Soo KimHan-Seok KoJoung-Hoon BehTaek-Jin Lee
    • Hyun-Soo KimHan-Seok KoJoung-Hoon BehTaek-Jin Lee
    • G10K11/16
    • G10K11/178G10K2210/111
    • An adaptive mode control apparatus and method for adaptive beamforming based on detection of a user direction sound are provided. The adaptive mode control apparatus includes a signal intensity detector that searches for signal intensity of each designated direction to detect signal intensity having a maximum value when a voice signal of each direction is input through at least one microphone; and an adaptive mode controller that compares the signal intensity having the maximum value detected through the signal intensity detector with a threshold value and determines whether to perform an adaptive mode of a Generalized Sidelobe Canceller (GSC) according to the comparison results. Therefore, a lack of control of adaptation of an adaptive filter of the conventional art is solved. That is, as one condition for guaranteeing performance of adaptive beamforming, adaptation of an adaptive filter is not performed when noise of a sound with a high autocorrelation is cancelled.
    • 提供了一种基于用户方向声音检测的自适应波束成形的自适应模式控制装置和方法。 自适应模式控制装置包括信号强度检测器,当通过至少一个麦克风输入每个方向的语音信号时,搜索每个指定方向的信号强度以检测具有最大值的信号强度; 以及自适应模式控制器,其将具有通过信号强度检测器检测到的最大值的信号强度与阈值进行比较,并且根据比较结果确定是否执行广义旁瓣消除器(GSC)的自适应模式。 因此,解决了传统技术的自适应滤波器的适应性缺乏控制。 也就是说,作为用于保证自适应波束形成的性能的一个条件,当取消具有高自相关性的声音的噪声时,不执行自适应滤波器的自适应。
    • 5. 发明授权
    • Pre-processing method and apparatus for wide dynamic range image processing
    • 用于宽动态范围图像处理的预处理方法和装置
    • US08135235B2
    • 2012-03-13
    • US12381920
    • 2009-03-18
    • Bong-hyup KangChang-won JeonHan-seok Ko
    • Bong-hyup KangChang-won JeonHan-seok Ko
    • G06K9/36G09G5/02H04N9/77
    • H04N5/20H04N5/2353H04N5/2355
    • Provided are method and apparatus of pre-processing in WDR (wide dynamic range) image processing, the method of pre-processing of WDR image processing including: (a) receiving luminance and chrominance signals having different exposure times, and analyzing the correlation between a luminance signal having a first exposure time and a luminance signal having a second exposure time that is longer than the first exposure time; (b) based on the result of the analysis, dividing each of the luminance signal having the first exposure time and the luminance signal having the second exposure signal, into at least one of a bright region, a transition region, and a dark region; and (c) normalizing the regions of the luminance signal having the first exposure time to respectively correspond to the regions of the luminance signal having the second exposure times.
    • 提供了在WDR(宽动态范围)图像处理中预处理的方法和装置,WDR图像处理的预处理方法包括:(a)接收具有不同曝光时间的亮度和色度信号,并分析其中的相关性 具有第一曝光时间的亮度信号和具有比第一曝光时间长的第二曝光时间的亮度信号; (b)基于分析结果,将具有第一曝光时间的亮度信号和具有第二曝光信号的亮度信号分成亮区域,过渡区域和暗区域中的至少一个; 以及(c)对具有第一曝光时间的亮度信号的区域进行归一化,以分别对应于具有第二曝光时间的亮度信号的区域。
    • 7. 发明申请
    • Pre-processing method and apparatus for wide dynamic range image processing
    • 用于宽动态范围图像处理的预处理方法和装置
    • US20090268963A1
    • 2009-10-29
    • US12381920
    • 2009-03-18
    • Bong-hyup KangChang-won JeonHan-seok Ko
    • Bong-hyup KangChang-won JeonHan-seok Ko
    • G06K9/00H04N9/77
    • H04N5/20H04N5/2353H04N5/2355
    • Provided are method and apparatus of pre-processing in WDR (wide dynamic range) image processing, the method of pre-processing of WDR image processing including: (a) receiving luminance and chrominance signals having different exposure times, and analyzing the correlation between a luminance signal having a first exposure time and a luminance signal having a second exposure time that is longer than the first exposure time; (b) based on the result of the analysis, dividing each of the luminance signal having the first exposure time and the luminance signal having the second exposure signal, into at least one of a bright region, a transition region, and a dark region; and (c) normalizing the regions of the luminance signal having the first exposure time to respectively correspond to the regions of the luminance signal having the second exposure times.
    • 提供了在WDR(宽动态范围)图像处理中预处理的方法和装置,WDR图像处理的预处理方法包括:(a)接收具有不同曝光时间的亮度和色度信号,并分析其中的相关性 具有第一曝光时间的亮度信号和具有比第一曝光时间长的第二曝光时间的亮度信号; (b)基于分析结果,将具有第一曝光时间的亮度信号和具有第二曝光信号的亮度信号分成亮区域,过渡区域和暗区域中的至少一个; 以及(c)对具有第一曝光时间的亮度信号的区域进行归一化,以分别对应于具有第二曝光时间的亮度信号的区域。