公开(公告)号：US06912003B1

公开(公告)日：2005-06-28

申请号：US09402109

申请日：1997-10-30

申请人： Uwe Apel ,  Ulrich Seger ,  Heinz-Gerd Graf ,  Udo Postel ,  Hans-Jörg Schönherr ,  Armin Armbruster

发明人： Uwe Apel ,  Ulrich Seger ,  Heinz-Gerd Graf ,  Udo Postel ,  Hans-Jörg Schönherr ,  Armin Armbruster

IPC分类号： H04N5/361 ,  H04N5/374 ,  H04N9/64

CPC分类号： H04N5/361 ,  H04N5/374

摘要： A method and circuit for compensating variations induced by temperature, strain and manufacturing technology in CMOS video sensors. Using at least two reference CMOS sensors, held at the same temperature level as the CMOS video sensors to be compensated and which are not irradiated, two reference signals are generated whereof one corresponds to a reference dark value whilst the other one, in response to the application of an electric current, corresponds to a reference illumination value. The reference signals are amplified separately of each other. At least one correction value is stored in a memory unit for each CMOS video sensor point to be compensated, such that output signals corrected by FPN (=fixed pattern noise) will be obtained. The FPN-corrected output signals as well as the reference signals obtained are supplied to the A/D converter where the output signals of the CMOS video sensor are compensated and converted into digital signals.

摘要翻译： 一种用于补偿CMOS视频传感器温度，应变和制造技术引起的变化的方法和电路。 使用至少两个参考CMOS传感器，其保持在与待补偿的CMOS视频传感器相同的温度水平并且不被照射的情况下，产生两个参考信号，其中一个对应于参考暗值，而另一个参考CMOS传感器响应于 施加电流对应于参考照明值。 参考信号彼此分开放大。 对于要补偿的每个CMOS视频传感器点，存储器单元中存储至少一个校正值，使得将获得由FPN校正的输出信号（=固定模式噪声）。 将FPN校正的输出信号以及所获得的参考信号提供给A / D转换器，其中CMOS视频传感器的输出信号被补偿并转换为数字信号。

公开(公告)号：US5606393A

公开(公告)日：1997-02-25

申请号：US548666

申请日：1995-10-26

申请人： Hans-Joerg Schoenherr ,  Hans Zimmet ,  Michael Lenk ,  Karl-Heinz Werner ,  Udo Postel

发明人： Hans-Joerg Schoenherr ,  Hans Zimmet ,  Michael Lenk ,  Karl-Heinz Werner ,  Udo Postel

IPC分类号： G01J1/12 ,  G03B7/08 ,  G01J1/02 ,  G01J1/42 ,  G03B37/00

CPC分类号： G01J1/122

摘要： An illumination measuring device for panoramic picture taking has a first photoelectric illumination intensity receiver which diffusely determines light falling in a first measuring region and illuminating a first panoramic portion, at least one further photoelectric illumination intensity receiver which diffusely determines light falling in a second measuring region and illuminating a further panoramic portion, and an evaluating unit determining a deviation of an illumination intensity determined by the further illumination intensity receiver from an illumination intensity determined by the first illumination intensity receiver.

摘要翻译： 用于全景拍摄的照明测量装置具有第一光电照射强度接收器，其漫射地确定落在第一测量区域中的光并照亮第一全景部分，至少一个另外的光电照射强度接收器，漫射地确定落在第二测量区域中的光 并且照亮另外的全景部分，以及评估单元，确定由所述另外的照明强度接收器确定的照明强度与由所述第一照明强度接收器确定的照明强度的偏差。