The data rates of the position sensors, i.e., the barometer and magnetometer, are 25 Hz/50 Hz. These sensors are factory calibrated on nine axes with robotic arms. All these sensors provide extraordinary opportunities for easy and accurate multi-sensor capturing. The ZED 2i depth camera has a built-in inertial measurement unit, barometer, temperature sensor, and magnetometer. This benefit arises from a wide 120° angle FOV, advanced sensor stack, and thermal calibration for greatly improved positional tracking precision and accuracy.

Next, this ZED 2i camera has an enhanced positional tracking algorithm that is a significant improvement suitable for robotic applications. All these software packages allow the modification of different parameters depending on the user requirements, such as the image quality, depth quality, sensing mode, name of topics, quantity of frames per second, etc. Furthermore, ZED devices support several software packages, called “wrappers,” such as ROS, MATLAB, Python, etc. Various configurations and capturing parameters of the on-board image signal processor, such as brightness, saturation, resolution, and contrast, can be adjusted through the SDK provided by Stereolabs.

Right and left video frames are synchronized and streamed as a single uncompressed video frame in the side-by-side format. Hence, the camera gives a very accurate and precise depth image that describes the depth differences, i.e., the different distances from the plane of the camera. The depth image is provided with a 32-bit resolution. The ZED sensor uses wide-angle optical lenses with a FOV of 110°, and it can stream an uncompressed video signal at a rate up to 100 fps in Wide Video Graphics Array (WVGA) format.

Robotics with zed camera