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Method for updating a value of orientation with respect to north or for improving the initialization of such a value in an apparatus comprising an image sensor
Method for updating a value of orientation with respect to north or for improving the initialization of such a value in an apparatus comprising an image sensor
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机译:在包括图像传感器的设备中用于更新相对于北方的取向值或用于改善该值的初始化的方法
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摘要
The invention relates to a method for updating and/or for initializing, in a system comprising an image sensor oriented towards the horizon such as a pair of binoculars coupled to a geographical north seeker incorporating a gyrometer, a value representative of the orientation of the image sensor with respect to north, in which the shift of two images arising from the digital image sensor is determined at a first instant and at a second instant that are distinct so as to construct an item of information representative of an angular movement, and in which this angular movement information is utilized to: update the value of orientation of the image sensor;—and/or to discriminate the movements of the image sensor with respect to the ground from the movements of the image sensor that are due to the rotation of the earth, in a process for initializing the value of orientation of the image sensor using a north seeker of gyroscopic or gyrometric type rigidly tied to the image sensor.
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