Displaying Frames

Metavision SDK offers a UI module that comes with a C++ and a Python API allowing to display frames, but any other GUI framework can be used.

Using SDK UI C++ API

In C++, there are two main classes:

• Metavision::Window that will be updated on demand

• Metavision::MTWindow that owns an internal rendering thread allowing a fixed frequency display (synchronized with the screen’s refresh rate)

Those classes are explained and demonstrated in the sample metavision_simple_window.

Using SDK UI Python API

In Python, the C++ classes Windows and MTWindow have Python bindings:

• metavision_sdk_ui.Window

• metavision_sdk_ui.MTWindow

Those Python classes are working similarly to the C++ classes explained in details in the C++ sample metavision_simple_window.

To see those two Python classes in action, you can refer to those samples:

• For the Window class:

  • metavision_sdk_get_started

  • metavision_sparse_optical_flow

• For the MTWindow class:

  • metavision_simple_viewer

  • metavision_vibration_estimation.

Using third-party GUI frameworks

Some of our code samples are showing how to use third-party GUI frameworks:

• OpenCV is used in metavision_viewer

• ImGui is used in metavision_xyt