Scene Semantics and Geospatial Depth quiz

1. Which of the following is true about the Depth API?

   Choose as many answers as you see fit.

   It helps a device’s camera understand the size and shape of the real objects in a scene.

   It creates depth images that add a layer of realism to your apps.

   It's automatically enabled in ARCore.

   It uses a depth-from-motion algorithm to create depth images.

2. True or false? To support the Depth API, a device must have a time-of-flight (ToF) sensor.

   True

   False

3. Which of the following is true about depth data?

   Depth data becomes more precise when surfaces have few or no features, such as a white wall.

   Depth data results improve when users are encouraged to move their devices.

   Depth data becomes available when the user doesn’t move the device.

   Depth data is most accurate when the device is more than five meters away from the real-world scene.

4. True or false? Plane hit-tests and depth hit-tests work well on non-planar and low-texture areas.

   True

   False

5. The Semantics API does which of the following?

   Choose as many answers as you see fit.

   Returns a confidence image that provides a confidence value for the lowest confidence pixel class label.

   Provides semantic information to complement existing geometric information in ARCore.

   Returns a semantic image that provides a label for each pixel across a set of useful semantic classes.

   Guarantees semantic label quality for the device’s landscape and orientation mode.

6. Which of the following is true about Geospatial Depth?

   Geospatial Depth is disabled by default on ARCore.

   With Geospatial Depth, typical ranges in depth images are approximately 20-to-30 meters away.

   Geospatial Depth works in areas that aren't supported by Google's Visual Positioning System (VPS).

   Geospatial Depth measurably increases depth-computation cost.

Submit answers