Is it possible to run box_dimensioner_multicam python after saving the cailbration value?

[HyeYumKim]

Required Info
Camera Model	D455
Platform	PC
Language	python

First of all, I want to calibrate the chess board and save the values, and when I run it again under the same conditions, I want to run it with the previously saved calibration values without the chess board.
In this case, what is the way?

[MartyG-RealSense]

Hi @HyeYumKim If you are using a single camera with box_dimensioner_multicam then a RealSense team member advises in #3073 (comment) that you could use the program without a chessboard by providing the intrinsics and extrinsics of that single camera instead of calibrating multiple cameras together. If the same camera will always be used, you could hard-code the values into the program instead of retrieving them in real-time, like the example of Python code for doing so that is provided in #4061

[MartyG-RealSense]

Hi @HyeYumKim Do you require further assistance with this case, please? Thanks!

[HyeYumKim]

can you tell me what's the difference between on chip cailbration and box measurement python code?
Could it be more accurate with on chip cailbration?

[MartyG-RealSense]

On-Chip calibration and the calibration that box_dimensioner_multicam performs are unrelated. box_dimensioner_multicam calculates the 3D world coordinates of each attached camera in relation to its position near the chessboard object. Unlike the On-Chip calibration tool, it is not calibrating the camera's sensors to improve the quality of the images that they generate.

If you wish to improve depth measuring accuracy then I recommend performing a Tare calibration instead of On-Chip.

https://dev.intelrealsense.com/docs/self-calibration-for-depth-cameras#section-3-depth-accuracy

[HyeYumKim]

Thank you..!!

[MartyG-RealSense]

Hi @HyeYumKim Do you require further assistance with this case, please? Thanks!

[MartyG-RealSense]

Case closed due to no further comments received.