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公开(公告)号：US08436934B2
公开(公告)日：2013-05-07
申请号：US12784727
申请日：2010-05-21
申请人： Chan-Min Chou , Chia-Lun Tsai , Tsung-Pin Lu , Tzu-Huang Huang , Chih-Pin Yen
发明人： Chan-Min Chou , Chia-Lun Tsai , Tsung-Pin Lu , Tzu-Huang Huang , Chih-Pin Yen
CPC分类号： G03B13/00
摘要： A method for assisting in focal length detection is applicable to a digital camera having the flash. The method includes the following steps. First, the flash of the digital camera is actuated and a first image is captured. Afterwards, a characteristic exposure value of the first image is calculated. A focus range comparison table is looked up according to the characteristic exposure value to obtain an initial focus position. Then, a focus procedure is performed according to the initial focus position to obtain a target focal length.
摘要翻译： 用于辅助焦距检测的方法适用于具有闪光灯的数字照相机。 该方法包括以下步骤。 首先，激活数码相机的闪光并捕获第一图像。 之后，计算第一图像的特征曝光值。 根据特征曝光值查找对焦范围比较表以获得初始聚焦位置。 然后，根据初始聚焦位置执行聚焦过程以获得目标焦距。
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公开(公告)号：US08294785B2
公开(公告)日：2012-10-23
申请号：US12829911
申请日：2010-07-02
申请人： Chan-Min Chou , Tsung-Pin Lu
发明人： Chan-Min Chou , Tsung-Pin Lu
CPC分类号： H04N5/2354 , H04N5/23219
摘要： A method for adjusting photosensitiveness is able to determine a relative distance of an object in an image capture area through images captured before and after pre-flash of a flash lamp, so that the relative distance serves as a reference for adjusting current photosensitiveness of the digital camera, thereby capturing an image having better quality in a status that the flash lamp provides a fill light.
摘要翻译： 用于调节光敏度的方法能够通过在闪光灯的预闪光之前和之后捕获的图像来确定图像拍摄区域中的物体的相对距离，使得相对距离用作调整数字的当前光敏度的参考 从而在闪光灯提供填充光的状态下拍摄具有更好质量的图像。
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公开(公告)号：US20110043682A1
公开(公告)日：2011-02-24
申请号：US12652290
申请日：2010-01-05
申请人： Chan-Min Chou , Tsung-Pin Lu
发明人： Chan-Min Chou , Tsung-Pin Lu
CPC分类号： G03B13/32 , H04N5/23212 , H04N5/23219 , H04N5/2354
摘要： A method for assist in focal length detection is adapted to a digital camera having a flash. The method includes the following steps. First, the flash of the digital camera is actuated and an image having a face portion is captured. Afterwards, an exposure feature value of the face portion in the image is calculated. A focus range comparison table is looked up according to the exposure feature value to obtain an initial focus position. Then, a focus procedure is performed according to the initial focus position to obtain a target focal length. After the target focal length is obtained, a flash feature value of the image is further calculated, and a guide number (GN) and a diaphragm value are set according to the flash feature value.
摘要翻译： 用于辅助焦距检测的方法适用于具有闪光的数字照相机。 该方法包括以下步骤。 首先，数字照相机的闪光灯被启动，并且捕获具有面部部分的图像。 之后，计算图像中的脸部的曝光特征值。 根据曝光特征值查找对焦范围比较表以获得初始对焦位置。 然后，根据初始聚焦位置执行聚焦过程以获得目标焦距。 在获得目标焦距之后，进一步计算图像的闪光特征值，并根据闪光特征值设定指向数（GN）和光圈值。
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公开(公告)号：US08199247B2
公开(公告)日：2012-06-12
申请号：US12652290
申请日：2010-01-05
申请人： Chan-Min Chou , Tsung-Pin Lu
发明人： Chan-Min Chou , Tsung-Pin Lu
CPC分类号： G03B13/32 , H04N5/23212 , H04N5/23219 , H04N5/2354
摘要： A method for assist in focal length detection is adapted to a digital camera having a flash. The method includes the following steps. First, the flash of the digital camera is actuated and an image having a face portion is captured. Afterwards, an exposure feature value of the face portion in the image is calculated. A focus range comparison table is looked up according to the exposure feature value to obtain an initial focus position. Then, a focus procedure is performed according to the initial focus position to obtain a target focal length. After the target focal length is obtained, a flash feature value of the image is further calculated, and a guide number (GN) and a diaphragm value are set according to the flash feature value.
摘要翻译： 用于辅助焦距检测的方法适用于具有闪光的数字照相机。 该方法包括以下步骤。 首先，数字照相机的闪光灯被启动，并且捕获具有面部部分的图像。 之后，计算图像中的脸部的曝光特征值。 根据曝光特征值查找对焦范围比较表以获得初始对焦位置。 然后，根据初始聚焦位置执行聚焦过程以获得目标焦距。 在获得目标焦距之后，进一步计算图像的闪光特征值，并根据闪光特征值设定指向数（GN）和光圈值。
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公开(公告)号：US20120002081A1
公开(公告)日：2012-01-05
申请号：US12829911
申请日：2010-07-02
申请人： Chan Min Chou , Tsung Pin Lu
发明人： Chan Min Chou , Tsung Pin Lu
IPC分类号： H04N9/68
CPC分类号： H04N5/2354 , H04N5/23219
摘要： A method for adjusting photosensitiveness is able to determine a relative distance of an object in an image capture area through images captured before and after pre-flash of a flash lamp, so that the relative distance serves as a reference for adjusting current photosensitiveness of the digital camera, thereby capturing an image having better quality in a status that the flash lamp provides a fill light.
摘要翻译： 用于调节光敏度的方法能够通过在闪光灯的预闪光之前和之后捕获的图像来确定图像拍摄区域中的物体的相对距离，使得相对距离用作调整数字的当前光敏度的参考 从而在闪光灯提供填充光的状态下拍摄具有更好质量的图像。
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公开(公告)号：US20110058095A1
公开(公告)日：2011-03-10
申请号：US12784727
申请日：2010-05-21
申请人： Chan Min Chou , Chia Lun Tsai , Tsung Pin Lu , Tzu Huang Huang , Chih Pin Yen
发明人： Chan Min Chou , Chia Lun Tsai , Tsung Pin Lu , Tzu Huang Huang , Chih Pin Yen
IPC分类号： G03B13/00
CPC分类号： G03B13/00
摘要： A method for assisting in focal length detection is applicable to a digital camera having the flash. The method includes the following steps. First, the flash of the digital camera is actuated and a first image is captured. Afterwards, a characteristic exposure value of the first image is calculated. A focus range comparison table is looked up according to the characteristic exposure value to obtain an initial focus position. Then, a focus procedure is performed according to the initial focus position to obtain a target focal length.
摘要翻译： 协助焦距检测的方法适用于具有闪光灯的数码相机。 该方法包括以下步骤。 首先，激活数码相机的闪光并捕获第一图像。 之后，计算第一图像的特征曝光值。 根据特征曝光值查找对焦范围比较表以获得初始聚焦位置。 然后，根据初始聚焦位置执行聚焦过程以获得目标焦距。
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