message: sdk: jetson: imshow-jetson: Fix seg fault with chicony cam
  On imshow-jetson example there is generated a segmentation fault
  when chicony camera is used due to returned null pointer.
  This commit fix that.
diff: */
  #include <aditof/camera.h>
  #include <aditof/camera_96tof1_specifics.h>
  +#include <aditof/camera_chicony_specifics.h>
  #include <aditof/device_interface.h>
  #include <aditof/frame.h>
  #include <aditof/system.h>
  @@ -145,8 +146,26 @@ int main(int argc, char *argv[]) {
  auto specifics = camera->getSpecifics();
  auto cam96tof1Specifics =
  std::dynamic_pointer_cast<Camera96Tof1Specifics>(specifics);
  +
  + if (cam96tof1Specifics) {
  cam96tof1Specifics->setNoiseReductionThreshold(smallSignalThreshold);
  + } else {
  + auto chiconySpecifics =
  + std::dynamic_pointer_cast<CameraChiconySpecifics>(specifics);
  + if (chiconySpecifics) {
  + chiconySpecifics->setNoiseReductionThreshold(smallSignalThreshold);
  + }
  + }
  +
  + if (cam96tof1Specifics) {
  cam96tof1Specifics->enableNoiseReduction(true);
  + } else {
  + auto chiconySpecifics =
  + std::dynamic_pointer_cast<CameraChiconySpecifics>(specifics);
  + if (chiconySpecifics) {
  + chiconySpecifics->enableNoiseReduction(true);
  + }
  + }
  cv::namedWindow("Display Image", cv::WINDOW_AUTOSIZE);
  