How can I use the realsense tool in matlab to record the video and record it to the target folder

[Confident2000]

Required Info
Camera Model	{ D435 }
Operating System & Version	{Win (7)
Platform	PC
SDK Version	SDK 2.0
Language	matlab

Issue Description

How can I use the realsense tool in matlab to record the video and record it to the target folder, so that I can later stream it as output to get the captured depth frame data? There may be a case of c, but I would like to ask if there is a matlab version

[MartyG-RealSense]

Hi @Confident2000 The link below provides scripting references for recording camera data to a .bag format file at a specified file path using the RealSense MATLAB wrapper.

https://support.intelrealsense.com/hc/en-us/community/posts/6846011994003-How-do-I-record-a-bag-file-using-the-MATLAB-RealSense-wrapper-

[Confident2000]

Hi@MartyG-RealSense Thank you very much for your help. I will try according to the reference you provided

[Confident2000]

I used the following code according to the reference you provided, but there was an error. I'm sorry to bother you again. Please help me have a look

% Make Config object to manage pipeline settings
cfg = realsense.config();
% Tell pipeline to record to the given rosbag file
cfg.enable_record_to_file('E:\Realsense_project\RS_bag');
% Make Pipeline object to manage streaming
pipe = realsense.pipeline();
pointcloud = realsense.pointcloud();
% Start streaming from the rosbag with default settings
profile = pipe.start(cfg);
% Get streaming device's name
dev = profile.get_device();
name = dev.get_info(realsense.camera_info.name);
% Main loop
for i = 1:10
% Obtain frames from a streaming device
fs = pipe.wait_for_frames();
% Select depth frame
depth = fs.get_depth_frame();
%color = fs.get_color_frame();
end
% Stop streaming
pipe.stop();

---

错误使用 librealsense_mex Error opening file: E:\Realsense_project\RS_bag

出错 realsense.pipeline/start (第 31 行) out = realsense.librealsense_mex('rs2::pipeline', 'start', this.objectHandle, varargin{1}.objectHandle);

出错 realsense.getbag (第 13 行) profile = pipe.start(cfg);

[MartyG-RealSense]

Hi @Confident2000 I note that you are using the file path E:\Realsense_project\RS_bag

The bag filename should end in .bag

So if your file is called RS_bag then change the path to E:\Realsense_project\RS_bag.bag

If the file is just called RS then change the path to E:\Realsense_project\RS.bag

[MartyG-RealSense]

Hi @Confident2000 Do you require further assistance with this case, please? Thanks!

[Confident2000]

Thanks @MartyG-RealSense , I've now been able to generate a bag file and replace the camera live stream as input in pointcloud.example with the bag file. Later, I would like to know how to align the two point clouds before and after deformation.Specifically, I need to pair each point of them. Is there any relevant discussion ？

[MartyG-RealSense]

The MATLAB documentation link below provides information about registering two point clouds and stitching them together using Iterative Closest Point (ICP).

https://uk.mathworks.com/help/vision/ug/3-d-point-cloud-registration-and-stitching.html

[MartyG-RealSense]

Hi @Confident2000 Do you require further assistance with this case, please? Thanks!