如何使用相机（android设备）获得对象的距离和对象的大小？ [英] How to get the distance to an object and size of the object using the camera (android device)?

问题描述

我正在寻找一个android解决方案来计算到一个对象的距离，然后确定的大小（高度，宽度，长度）。例子将是一座桥梁，建筑物。

I am seeking an android solution to calculate the distance to an object and then determine the size (height, width, length). Example would be a bridge, building.

推荐答案

此信息不适用于单张图片。使用立体成像将是可能的，即，采用以一些（不重要）处理在空间上分离的两个图像。

This information is not available in a single image. It would be possible using stereoscopic imaging i.e. take two images spatially separated with some (not insignificant) processing.

虽然对焦控制可能在实际中给出带外的深度信息，但是对于具有这样小的传感器的相机在超过几英尺因为景深很大。

Although the focus control might appear to give out of band information on depth in practice it would be very inaccurate with a camera with such a small sensor at anything beyond a few feet since the depth of field is very large.

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