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Questions tagged [aruco]

ArUco is a C++ library (based on OpenCV) for detection of squared planar markers. Use this tag for questions about using the library.

ArUco is a library that can detect a variety of markers in images and video. Intended for use with , it is based on and is available for a variety of platforms.

The author maintains a page that includes links to documentation and the download site on SourceForge.

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OpenCV Aruco not compiling

Trying to compile opencv-3.4.1 with opencv_contrib-3.4.1 in Visual Studio 15 and I'm getting the following error. CMAKE ... -------------------------------------------------------------- Configuring done Generating done Visual Studio 1>------…
Bradmage
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pkg-config uses wrong prefix

I'm installing Aruco 3.0.10 from source with version="3.0.10" pkg="aruco-${version}.zip" url="https://netix.dl.sourceforge.net/project/aruco/3.0.0/${pkg}" cd `mktemp -d` wget -O $pkg $url unzip $pkg cd aruco-${version} mkdir build && cd build cmake…
Laurenz
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Aruco DetectMarkers implementation Emgu C#

I want to use the detectMarkers function for detection ArUco Markers. I am using Emgu to write the code in c#. I get multiple errors when I use the function. I am following the example in this link…
Lauran
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Error compiling Aruco on Mac OS X: Undefined symbols for architecture x86_64:

I am trying to compile Aruco using their short example. I am using Mac OS X (10.13.2), the compiler is clang (900.0.39.2), opencv (3.4.1_2 installed via brew) and Aruco (3.0.4). The simple example is: #include #include…
kungphil
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OpenCV trigonometry: find object closest to the camera

I think it is basic trigonometric task, but I not so good in trigonometry. I have calibrated camera so I know camera matrix and distortion coefficients. I also able to detect aruco board (using opencv's aruco contrib module) and its position so I…
Fedir Tsapana
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xcode build error with undefined symbols using aruco opencv module in Xcode

I've built opencv2.framework using OpenCV 3.4 and opencv_contrib in order to use the aruco library. I'm importing this framework into Xcode and I am able to import and use standard OpenCV modules with no compile errors. I can #import…
nwales
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Insert value in variable

I have a really easy (maybe stupid) question. I have following code to detect aruco markers with the aruco library: MarkerDetector MDetector; vector…
SVL
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How to get OpenCV and ArUco Working with Xcode

How can I add ArUco to my XCode project? I installed the OpenCV framework version 3.3.0 and 3.4.0 but I didn't find ArUco's files
user8615378
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Aruco marker detection with 360 camera?

recently I have been playing with the 360 fly HD camera and wondering if Aruco Marker can be detected during real time. The first thing come to my mind is to convert the fisheye image into perspective image first and then perform the detection on…
Klaus JianMing Zeng
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OpenCV Error: Unsupported format or combination of formats (vector of vectors of points of type Point3f)

I am trying to calibrate my webcam on Mac (and eventually a Microsoft Kinect) to detect Aruco markers. I am running all the functions correctly with but with an incorrect calibration matrix because the cameraCalibration() function is not working as…
Tom
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How to calculate the rotated angle from OpenCV rvecs

I am using aruco markers to get the location of a robot. After getting the pose from the estimatePoseSingleMarkers i obtain the rvecs and tvecs for a given marker. From this how could i obtain the rotated angle of the marker about each axis. i used…
Yomal
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OpenCV Aruco Make Failure

I have attempted to install the Aruco Markers module for OpenCV but having issues when applying make. I have been following this tutorial: uco.es/investiga/grupos/ava/node/26 Image of make error.
Tom
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OpenCV aruco, Z-axis doesn't draw properly

I have a problem with function drawAxis in aruco module. Z axis flip and general aren't at 90 degrees (X and Y works fine). The problem is illustrated by the screen: flip axis I tried changed camera, detect another markers and do many recalibration…
Fidor
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OpenCV: charuco (diamonds) not working on bigger images. Which parameters to tune?

somehow detecting charuco diamonds does not work with bigger images for me. With my original images of 1920x1080 it neither recognizes the ids reliably (the diamond ids elements are switching places every time). In the first image, you can see it…
cduguet
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Error "namespace cv::aruco has no member :CharucoBoard"

I am trying to calibrate cameras using the ChArUcoBoard (chessboard + ArUco) class in C++, but getting the following error while importing the Charuco class: ""namespace cv::aruco has no member :CharucoBoard". In fact, I am unable to import any of…
Sameer Sharma
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