@DTS Engineer Is there any update on this?

Hi Greg, Thanks for your reply. First I need to correct my initial post. Observation point are not rotated, they are mixed, but the topRight and bottomLeft points are inverted. I also suspected an image rotation issue at first. To test if I wasn't doing something wrong I implemented both text recognition and barcode detection based on Apple SampleTextRecognition project. I draw the quadrilaterals of text recognition observations and barcode recognition on the image (using the same method for both) and draw a circle at topRight point for each observation. It turns out all detected text topRight are the expected ones while it highlights the bottom Left point for barcode observations. Her is the sample project: https://github.com/radiorebelde/SampleScanner Cheers!