QR码 - 相机方向/投影 [英] QR Codes - Camera Orientation/Projection

问题描述

我正在寻找一个库或方法来解码QR码（或潜在的另一种形式的二维码），并且能够实际确定相机的位置和方向。这似乎应该是可行的，但我不完全确定。

有没有人知道什么是最好的路线？

/rel =nofollow noreferrer> zxing 是用于二维条形码（包括QR）的开源Google托管Java库。

请参阅 com.google.zxing.ResultMetadataType.ORIENTATION （从 com.google.zxing.Result.getResultMetadata（） ）：

表示图像中条形码的可能近似取向。该值以从正常，垂直方向顺时针旋转的度数给出。例如，通过读取从顶部到底部发现的1D条形码将被称为具有方向90。此键映射到值在[0,360]范围内的整数。

I am looking for a library or method to decode a QR Code (or potentially another form of 2d barcode) and to be able to actually determine the camera position and orientation. This seems like it should be doable, but I am not entirely sure.

Does anyone know what the best route for this is? Or if it is even possible?

解决方案

zxing is the open-source Google-hosted Java library for 2d barcodes including QR.

see com.google.zxing.ResultMetadataType.ORIENTATION (optional metadata returned in a hashtable from com.google.zxing.Result.getResultMetadata()):

Denotes the likely approximate orientation of the barcode in the image. This value is given as degrees rotated clockwise from the normal, upright orientation. For example a 1D barcode which was found by reading top-to-bottom would be said to have orientation "90". This key maps to an Integer whose value is in the range [0,360).

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