title: The accuracy of point cloud of scanning small object with HoloLens2
body: <p>I used HoloLens2 to scan a rubic‘s cube from a single perspective. Then I got the colored pointcloud shown in the image below using StreamRecording in Hololens2forCV. Another image shows the RGB Frame. As we can see, there are some noise  on the back of the Rubik's cube. These points shouldn't be on the back of the rubik's cube as HoloLens2 can't scan the back side. I want to know why there are so many points on the back of the rubik‘s cube.</p>
  <p><a href="https://i.stack.imgur.com/KnSSK.png" rel="nofollow noreferrer">enter image description here</a></p>
  <p><a href="https://i.stack.imgur.com/iWZrL.png" rel="nofollow noreferrer">enter image description here</a></p>
  <p><a href="https://i.stack.imgur.com/B1OzR.png" rel="nofollow noreferrer">enter image description here</a></p>