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lcruz

Hi everyone,

I’m working with DepthAI and using an OAK-D Pro PoE camera to obtain XYZ coordinates from the depth map. I want to ensure that the depth measurements are as accurate and stable as possible.

In my case, the objects I need to measure are at a short distance (around 500 mm) from the camera.

What are the best settings or configurations to achieve optimal depth map accuracy at close range?
Are there specific parameters I should adjust (e.g., confidence threshold, subpixel mode, disparity settings, etc.)?

Additionally, are there any best practices to reduce noise and improve depth precision, especially when working with small features at this distance?

Thanks in advance for your help!

jakaskerl

Thank you so much!

I have another question. If I have the (x, y) pixel coordinates in the color image (instead of the depth frame), is it enough to use the following settings to properly align the depth map with the RGB image so that I can use the same (x, y) coordinates? Or do I need to do anything else?

stereo.setDepthAlign(dai.CameraBoardSocket.CAM_A)

stereo.setOutputSize(monoLeft.getResolutionWidth(), monoLeft.getResolutionHeight())

Thanks in advance!

I would like to obtain the XYZ coordinates in millimeters for specific pixels in an image. I have a color image aligned with the depth map, and I read that Spatial Location Calculator can be used when defining regions of interest (ROI). However, I am not interested in calculating the average coordinates of a region—I need the exact coordinates for specific pixels.

Is it possible to achieve this with Spatial Location Calculator, or is there another way to do it? Any guidance would be greatly appreciated!