Wrong output from /depth_to_rgb and /rgb_to_depth topics

[carcormir]

Hi,

My problem is simple, after running the driver.launch file, I launch rviz to visualize the camera output. When I plot the output the color image does not match the depth image ( /depth_to_rgb or /rgb_to_depth topics).

I thought this could be a calibration issue between the ir and color cameras but I have tried other two kinect azure platforms and the same issue occurs.

This is a screenshot of my rviz session:

These are the arguments of my launch file:

<arg name="depth_enabled" default="true" /> <!-- Enable or disable the depth camera --> <arg name="depth_mode" default="NFOV_UNBINNED" /> <!-- Set the depth camera mode, which affects FOV, depth range, and camera resolution. See Azure Kinect documentation for full details. Valid options: NFOV_UNBINNED, NFOV_2X2BINNED, WFOV_UNBINNED, WFOV_2X2BINNED, and PASSIVE_IR --> <arg name="color_enabled" default="true" /> <!-- Enable or disable the color camera --> <arg name="color_format" default="bgra" /> <!-- The format of RGB camera. Valid options: bgra, jpeg --> <arg name="color_resolution" default="1080P" /> <!-- Resolution at which to run the color camera. Valid options: 720P, 1080P, 1440P, 1536P, 2160P, 3072P --> <arg name="fps" default="15" /> <!-- FPS to run both cameras at. Valid options are 5, 15, and 30 --> <arg name="point_cloud" default="true" /> <!-- Generate a point cloud from depth data. Requires depth_enabled --> <arg name="rgb_point_cloud" default="true" /> <!-- Colorize the point cloud using the RBG camera. Requires color_enabled and depth_enabled --> <arg name="point_cloud_in_depth_frame" default="true" /> <!-- Whether the RGB pointcloud is rendered in the depth frame (true) or RGB frame (false). Will either match the resolution of the depth camera (true) or the RGB camera (false). --> <arg name="required" default="false" /> <!-- Argument which specified if the entire launch file should terminate if the node dies --> <arg name="sensor_sn" default="" /> <!-- Sensor serial number. If none provided, the first sensor will be selected --> <arg name="recording_file" default="" /> <!-- Absolute path to a mkv recording file which will be used with the playback api instead of opening a device --> <arg name="recording_loop_enabled" default="false" /> <!-- If set to true the recording file will rewind the beginning once end of file is reached --> <arg name="body_tracking_enabled" default="false" /> <!-- If set to true the joint positions will be published as marker arrays --> <arg name="body_tracking_smoothing_factor" default="0.0" /> <!-- Set between 0 for no smoothing and 1 for full smoothing --> <arg name="rescale_ir_to_mono8" default="true" /> <!-- Whether to rescale the IR image to an 8-bit monochrome image for visualization and further processing. A scaling factor (ir_mono8_scaling_factor) is applied. --> <arg name="ir_mono8_scaling_factor" default="0.65" /> <!-- Scaling factor to apply when converting IR to mono8 (see rescale_ir_to_mono8). If using illumination, use the value 0.5-1. If using passive IR, use 10. --> <arg name="imu_rate_target" default="0"/> <!-- Desired output rate of IMU messages. Set to 0 (default) for full rate (1.6 kHz). -->

Any idea on how to approach to this? Should I do my own extrinsic calibration?

Thanks in advance for the help

[AswinkarthikeyenAK]

Hi @ooeygui , Is there a way to synchronize the color and the depth images in ros? Also, How do you find the devices depth settings? For instance I would like to know if the depth setting is in [m] or [mm]?

Thanks

[DanielTakeshi]

Also curious about how to synchronize color and depth images? The images have different sizes. Also depth should generally be in meters (but this can be verified by measuring with a ruler).