我们可以对图像进行校正, 给定立体图像。 对于单一图像, 我们可以找到两个消失点, 然后找到消失线 。 使用这条消失线, 我们可以进行投影校正 。 但是, 折线校正需要哪些限制呢?
我基本上想纠正其正面观点的一幅图象,即世界上的平行线是平行的,也与x轴平行。 我希望我明白这一点。
将图像中的消失点(x,y)转换为(1,0)?
提前感谢
投影转换会将图像点转换为理想点( 1.0 0 ) 。 这样它就可以将图像修正为人们通常想要看到的近似转换 。 这个过程是“ fimine 校正 ” 。 缩影转换会保持线条平行, 但会扭曲图像, 使图像看起来怪异, 所以我不确定您想停止的地方。 缩影转换可以将圆形转换为椭圆形, 也可以改变交叉线的角 。
要删除平面变形( 校正), 您必须确定“ 圆点的二次曲线 ” 。 要做到这一点, 可以确定两对垂直线; 确定真正是一个圆的椭圆; 或者使用两个已知的长度比率。 一旦这样做, 您的图像和您想要如何查看图像之间的唯一差异将是其大小、 x 和 Y 位置以及整个图像的旋转 。
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