Dynamic calibrator V2.6.8.0

[scizors]

Hello, I tried to calibrate the RGB camera using D415 and my target is android mobile phone dynamic target tool (pattern from intelrealsense) first time It was successful and it created a CalibrationTable.xml inside bin the values after using Dynamic calibrator V2.6.8.0 are param name = "ResolutionRGB" value 1920value value>1080value param param name = "FocalLengthRGB" value1388.65value value1388.21value param param name = "PrincipalPointRGB" value945.008value value564.178value param

second,third and so on time why? It stopped in the app Dynamic calibrator V2.6.8.0 in step 15 it says start scale calibration

[MartyG-RealSense]

The instructions for depth scale calibration are in section 2.2.1 of the Dynamic Calibrator user guide.

https://dev.intelrealsense.com/docs/intel-realsensetm-d400-series-calibration-tools-user-guide

To quote the instructions:

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1. Take the images from L and R camera, including the depth stream (in real-time)

2. Detect the target on the smartphone in both images

3. Similarly to target-less calibration, user moves the phone so that it covered most of the image, repeating steps 1-2

4. Once done, user just keeps taking images by positioning the phone anywhere in the image but must move the phone every time

5. After taking 15 images in step 4, the process is complete

6. The process checks for rectification error (absolute Y difference) but also compares the measured pattern size with ground truth

[scizors]

Hello, Thanks for the reply I need to calibrate RGB camera for align intrinsics for 1280*720 is it possible

as you see my previous post the output xml after calibration gives param name = "ResolutionRGB" value 1920value value>1080value

but i am intrested in 1280*720

[MartyG-RealSense]

The appendix of the Dynamic Calibrator instructions says about phone screen calibration: "The target image is dynamically generated on the fly at runtime. The image will be exact match to screen resolution".

So I wonder if the issue is related to the screen settings on your phone target.

[scizors]

how can I fix this please provide the solution for this problem

[MartyG-RealSense]

Re-reading the information about the phone screen calibration, I think the app is just scaling the stripe image to the size of the phone's screen and it doesn't actually mean anything in terms of calibrating the camera. There does not appear to be a way to change the image displayed on the phone, and there is probably no need to do so.

The information that you got:

value 1920value value>1080value

May just be referring to the fact that this is the maximum resolution (the 'Active Pixels') of the RGB sensor of the 400 Series cameras.

[scizors]

sorry i am interested in RGB camera ( OmniVision OV2740) intrinsic camera parameters for resolution of 1280*720 like focal length(x,y), principal point(x,y) and distortion parameter using dynamic camera calibration app

[MartyG-RealSense]

The free public version of the Dynamic Calibrator program only provides for calibration of extrinsic parameters.

There is an OEM version of the Calibrator that can calibrate both intrinsics and extrinsics, but it would be hard to obtain unless you had a Non Disclosure Agreement (NDA) with Intel or purchased the $1500 USD OEM calibrator target board in the RealSense Store.

[MartyG-RealSense]

This case will be closed after 7 days from the date of writing this if there are no further responses. Thanks!