Wednesday, April 05, 2017

[xqvyhosk] QR code from video

Decoding a 2D barcode from video has some issues not present in decoding from a single static image.  Video is a stack of many images which can be combined to decrease noise, though how to align and combine them seems nontrivial.

Weird image shear can occur if the camera or the barcode move in the middle of rasterizing a video frame.  Perhaps consider video as a collection of raster lines rather than frames.

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