This section mainly introduces the work mode principle of the Percipio depth cameras.
Mode 0: Continuous integration mode
The depth camera continuously captures image sensor data according to the configuration set by the host computer software, performs depth disparity calculation, and outputs valid depth data.
The depth camera receives software trigger commands through a USB interface or an Ethernet interface, or hardware trigger signals through an external trigger circuit interface. It captures image sensor data, performs depth disparity calculation, and outputs valid depth data. After completing one image integration and outputting depth data, the camera automatically enters standby mode, waiting for the next trigger information.
In this mode, the camera starts an image acquisition and outputs a depth image every time it receives a trigger command through the USB interface or Ethernet interface.
In this mode, the trigger signal input circuits of multiple cameras are simultaneously connected to the same external hardware trigger signal source. Each time the external hardware trigger signal is sent out, the multi-device synchronization function can be achieved once.
Mode 2: Master device single trigger mode
In this mode, after receiving a software trigger command through the USB interface or Ethernet interface, the depth camera outputs a hardware trigger signal through the TRIG_OUT hardware interface as the signal source of the slave device. By connecting the hardware trigger signal of this camera to the TRIG_IN interface of other cameras in mode 1, multiple cameras can be synchronized to integrate and output synchronized depth images.
The depth camera works in this mode can continuously output trigger signals through the TRIG_OUT hardware interface according to the frequency set by the host computer, serving as the signal source for the slave device. By connecting the hardware trigger signal of this camera to the TRIG_IN interface of other cameras in mode 1, multiple cameras can be synchronized to integrate images at the specified frequency and output synchronized depth images.
Due to the limited driving capability of the trigger interfaces of the depth camera, when the camera is working in mode 2 or 3, it supports a maximum of 2 devices of the same model as the slave devices. If you need to connect more devices, it is recommended to purchase the Trigger HUB device developed by Percipio to ensure effective signal triggering.
For the method of setting the work mode using software API, please refer to Work mode settings .
