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1. 发明授权

US08126668B2 Signal detection using delta spectrum entropy 有权
标题翻译：信号检测采用三角谱熵
公开(公告)号：US08126668B2
公开(公告)日：2012-02-28
申请号：US12040734
申请日：2008-02-29
申请人： Kwang-Seok Hong , Yong-Wan Roh , Kue-Bum Lee
发明人： Kwang-Seok Hong , Yong-Wan Roh , Kue-Bum Lee
IPC分类号： G01R23/00
CPC分类号： G01R19/0007 , G01R23/16 , G10L21/0208 , G10L25/78
摘要： Disclosed is a method of signal detection. A received input signal is divided into a frame unit and each input signal present in a first frame and a second frame is transformed into a frequency signal. Then, first power spectrum information and second power spectrum information are computed utilizing the transformed frequency signal and a delta spectrum entropy value corresponding to a difference of the two computed power spectrum information is obtained. A predetermined input signal is included in a predetermined frame among the input signal after judging through comparing the delta spectrum entropy value with a critical value. Desired signal can be detected in a noisy environment including a noise signal by using the delta spectrum entropy value.
摘要翻译：公开了一种信号检测方法。接收的输入信号被分成帧单位，并且存在于第一帧中的每个输入信号，并且将第二帧变换为频率信号。然后，利用变换的频率信号计算第一功率谱信息和第二功率谱信息，并且获得与两个计算的功率谱信息的差对应的δ谱熵值。在通过将Δ谱熵值与临界值进行比较判断之后，预定输入信号被包括在输入信号中的预定帧中。可以通过使用δ谱熵值在包括噪声信号的噪声环境中检测期望的信号。

2. 发明申请

US20090284608A1 GAZE TRACKING APPARATUS AND METHOD USING DIFFERENCE IMAGE ENTROPY 有权
标题翻译： GAZE跟踪装置和使用差分图像入侵的方法
公开(公告)号：US20090284608A1
公开(公告)日：2009-11-19
申请号：US12368269
申请日：2009-02-09
申请人： Kwang Seok Hong , Jun Ho Yoon , Jong Bae Jeon , Kue Bum Lee
发明人： Kwang Seok Hong , Jun Ho Yoon , Jong Bae Jeon , Kue Bum Lee
IPC分类号： H04N5/225 , G06K9/68
CPC分类号： G06F3/013 , G06K9/00335 , G06T7/248
摘要： In accordance with one aspect of the present invention, there is provided a gaze tracking apparatus using difference image entropy, comprising: image detection module for detecting user's eye region image from image of the user taken by picture-taking apparatus which is connected to the gaze tracking apparatus; image selection module for computing entropy value of difference image between the eye region image and a plurality of reference images respectively indicating each gazing direction and selecting reference image with least difference image entropy value among the plurality of reference images; and gaze tracking module for recognizing user's gazing direction by regarding gazing direction that the selected reference image indicates as user's gazing direction.
摘要翻译：根据本发明的一个方面，提供了一种使用差分图像熵的注视跟踪装置，包括：图像检测模块，用于从连接到注视的摄像装置拍摄的用户的图像中检测用户的眼睛区域图像跟踪装置图像选择模块，用于计算眼睛区域图像和多个参考图像之间的差分图像的熵值，所述参考图像分别指示多个参考图像中的每个注视方向和选择具有最小差异图像熵值的参考图像; 以及注视跟踪模块，用于通过将所选择的参考图像指示为用户的注视方向的注视方向来识别用户的注视方向。

3. 发明申请

US20090177423A1 SIGNAL DETECTION USING DELTA SPECTRUM ENTROPY 有权
标题翻译：信号检测使用DELTA光谱入侵
公开(公告)号：US20090177423A1
公开(公告)日：2009-07-09
申请号：US12040734
申请日：2008-02-29
申请人： Kwang-Seok HONG , Yong-Wan Roh , Kue-Bum Lee
发明人： Kwang-Seok HONG , Yong-Wan Roh , Kue-Bum Lee
IPC分类号： G01R23/16
CPC分类号： G01R19/0007 , G01R23/16 , G10L21/0208 , G10L25/78
摘要： Disclosed is a method of signal detection. A received input signal is divided into a frame unit and each input signal present in a first frame and a second frame is transformed into a frequency signal. Then, first power spectrum information and second power spectrum information are computed utilizing the transformed frequency signal and a delta spectrum entropy value corresponding to a difference of the two computed power spectrum information is obtained. A predetermined input signal is included in a predetermined frame among the input signal after judging through comparing the delta spectrum entropy value with a critical value. Desired signal can be detected in a noisy environment including a noise signal by using the delta spectrum entropy value.
摘要翻译：公开了一种信号检测方法。接收的输入信号被分成帧单位，并且存在于第一帧中的每个输入信号，并且将第二帧变换为频率信号。然后，利用变换的频率信号计算第一功率谱信息和第二功率谱信息，并且获得与两个计算的功率谱信息的差对应的δ谱熵值。在通过将Δ谱熵值与临界值进行比较判断之后，预定输入信号被包括在输入信号中的预定帧中。可以通过使用δ谱熵值在包括噪声信号的噪声环境中检测期望的信号。

4. 发明授权

US08274578B2 Gaze tracking apparatus and method using difference image entropy 有权
标题翻译：凝视跟踪装置和使用差分图像熵的方法
公开(公告)号：US08274578B2
公开(公告)日：2012-09-25
申请号：US12368269
申请日：2009-02-09
申请人： Kwang Seok Hong , Jun Ho Yoon , Jong Bae Jeon , Kue Bum Lee
发明人： Kwang Seok Hong , Jun Ho Yoon , Jong Bae Jeon , Kue Bum Lee
IPC分类号： H04N5/228
CPC分类号： G06F3/013 , G06K9/00335 , G06T7/248
摘要： In accordance with one aspect of the present invention, there is provided a gaze tracking apparatus using difference image entropy, comprising: image detection module for detecting user's eye region image from image of the user taken by picture-taking apparatus which is connected to the gaze tracking apparatus; image selection module for computing entropy value of difference image between the eye region image and a plurality of reference images respectively indicating each gazing direction and selecting reference image with least difference image entropy value among the plurality of reference images; and gaze tracking module for recognizing user's gazing direction by regarding gazing direction that the selected reference image indicates as user's gazing direction.
摘要翻译：根据本发明的一个方面，提供了一种使用差分图像熵的注视跟踪装置，包括：图像检测模块，用于从连接到注视的摄像装置拍摄的用户的图像中检测用户的眼睛区域图像跟踪装置图像选择模块，用于计算眼睛区域图像和多个参考图像之间的差分图像的熵值，所述参考图像分别指示多个参考图像中的每个注视方向和选择具有最小差异图像熵值的参考图像; 以及注视跟踪模块，用于通过将所选择的参考图像指示为用户的注视方向的注视方向来识别用户的注视方向。

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