2-Multiple ID detector with personalized gameobjects.
3- Marker interaction.
This package also includes a scene that DOES NOT need any “OpenCV”, “Vuforia” or any other “ARcore”. It only needs the camera feedback. It was tested when there is a high contrast between a marker and the background (as show in the video) and in a real background with some coins.
The code implements the following steps:
1) first a gray scale image is obtained.
2) then Sobel filter is applied to gray scale.
3) after that Hough transform is obtained to find lines.
4) dilatation and erosion for the Hough transform are made in order to improve quality.
5) regions inside the Hough transform are obtained. This is called segmentation and uses a labeling process composed of two image tests.
6) each region represents a line.
7) for each line, we compute intersections that give four corners.
8) if more lines are found, do nothing.
In the example the model of the helicopter was obtained from this free asset:
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