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Planar surface area transformation using modified homography matrix

机译:使用改进的单应性矩阵进行平面表面积变换

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This research targets a problem of planar area size inconsistency after image warping to the top view. An orientation sensor attached to a camera was used to acquire the camera's orientation in real time. Then, extrinsic parameters derived from the sensor and pre-computed intrinsic parameters were used to generate a homography matrix. The homography matrix was modified to eliminate the effect of an angle change, by avoiding the use of shift parameters. In doing so, an area size stays the same regardless of any change in such an angle. A separately required translation matrix was used to shift the top view image. In the shifted top view image, the number of target pixels can be directly counted. Finally, the number of pixel was converted to an area size in real-world units.
机译:这项研究针对图像翘曲至顶视图后的平面区域尺寸不一致的问题。连接到摄像机的方向传感器用于实时获取摄像机的方向。然后,使用源自传感器的外部参数和预先计算的内部参数生成单应矩阵。通过避免使用移位参数,修改了单应性矩阵以消除角度变化的影响。这样做时,面积大小保持不变,无论角度如何变化。使用单独需要的转换矩阵来移动顶视图图像。在移位的顶视图图像中,可以直接计算目标像素的数量。最后,将像素数转换为以实际单位表示的区域大小。

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