I'm running the demo of depthai-experiments/Gen2-head-posture-detection, and I find the accuracy of depth Z value is wrong.[URL=https://i.imgur.com/cHpUhiJ.jpg][IMG]https://i.imgur.com/cHpUhiJ.jpg[/IMG][/URL] As shown in the picture,the actual distance is 50cm,but the calculated depth value is 2m. How can I solve this problem?

@"erik"#p5825 Hi,Erik This is the error depth image I collected,and the pixels I want are [580,496]. [URL=https://i.imgur.com/OwJ7ZsC.png][IMG]https://i.imgur.com/OwJ7ZsCh.png[/IMG][/URL] I found that the depth data is accurate when I put my right hand on my head.Like the picture below: [URL=https://i.imgur.com/3wVSeIC.png][IMG]https://i.imgur.com/3wVSeIC.png[/IMG][/URL] This is the correct depth image I collected,and the pixels I want are [678,497]. [URL=https://i.imgur.com/bWsb2rh.png][IMG]https://i.imgur.com/bWsb2rhh.png[/IMG][/URL] So how can I avoid such problems in later use? Thanks, Ke

Depth Z value accuracy of depthai-experiments/Gen2-head-posture-detection

Ke_Kang

I'm running the demo of depthai-experiments/Gen2-head-posture-detection, and I find the accuracy of depth Z value is wrong.
As shown in the picture,the actual distance is 50cm,but the calculated depth value is 2m.
How can I solve this problem?

erik

Hi Ke_Kang ,
Please also provide disparity/depth map, as likely it's a problem with invalid disparity pixels.
Thanks, Erik

walawala111

Ke_Kang Hi, I have encountered the same problem as you. May I ask how you resolved it later? Thanks

Ke_Kang

erik
Hi,Erik
This is the error depth image I collected,and the pixels I want are [580,496].

I found that the depth data is accurate when I put my right hand on my head.Like the picture below:

This is the correct depth image I collected,and the pixels I want are [678,497].

So how can I avoid such problems in later use?
Thanks, Ke

erik

Hi Ke_Kang ,
Are you using RGB-depth alignment on StereoDepth node?
Thanks, Erik

Ke_Kang

Hi,erik
Yes, I used RGB-depth alignment on StereoDepth node.

I have another question, can I use OAK-D-Pro to obtain the depth value of hair and black clothes?
Thanks, Ke

erik

Hi Ke_Kang , I believe so - is there invalid depth in those regions?
Thanks, Erik