DVR Systems Quiz

What is the primary purpose of improving latency and frame rates in VR systems?

• To reduce the power consumption of the system

• To improve the accuracy of the rendering process

• To avoid tearing and reduce latency in pixel switching

• To increase the resolution of the display

How long can it take for a smartphone LCD screen to switch pixels?

• 1 ms

• 8 ms

• 20 ms

• 100 ms

What hypothetical device could potentially eliminate all latency problems in a VR system?

• A powerful GPU

• A fortune teller

• A faster VR headset

• A more powerful operating system

Which of the following is NOT a question that would need to be answered by a "fortune teller" to eliminate latency in VR?

• At what time will the pixels be switching?

• What will be the positions and orientations of virtual world models?

• How many frames will the system process per second?

• Where will the user be looking at that time?

What is post-rendering image warp used for in VR systems?

• To reduce the display resolution

• To adjust the image before scanning out to the display

• To predict the user's movements

• To improve frame rates by increasing the resolution

Which of the following is a limitation of image warping when changing viewpoints in VR?

• It is computationally expensive

• It causes motion parallax issues

• It increases the number of frames per second

• It improves depth perception

What is the process of artificially increasing the frame rate by inserting warped frames called?

• Rendering

• Inbetweening or tweening

• Post-processing

• Frame doubling

When mapping a photosphere in VR, which method is used to represent it with minimal resolution loss?

• Using spherical coordinates

• Mapping it onto a cube with six square images

• Using latitude and longitude coordinates

• Mapping it onto a flat rectangle

What is a potential challenge when capturing panoramic images for VR?

• The need to render images at high resolution

• The inability to capture the entire light field at once

• The need for a high frame rate

• The need for low latency

What is a photosphere in the context of VR?

• A single panoramic image displayed on a flat screen

• A 3D virtual object used in immersive VR experiences

• A spherical image representing all possible viewing directions

• A type of virtual reality camera