Live data from Hacker News

Robot will beam live Moon pictures to Oculus users

bbc.co.uk

11–20 of 26 posts

Re: Robot will beam live Moon pictures to Oculus users

#11

Presumably they’ve got a 360º camera module that’ll be proxied through an Earth-local server, rather than actually sending movement controls to a stereo camera on the lander? If nothing else the multi-second latency would be nauseating.

I've thought about this a bit, but how can you achieve 360° stereo? If you have two 360° cameras side by side, as soon as you look 90° L/R, you no longer have depth and one eye would just see the side of the other camera. If you just have one 360° camera, you don't have any depth.

You could build a 360 degree 3D camera that works for any viewing configuration, but it would involve nontrivial image processing and wouldn't be totally free from small visual glitches/artifacts in some cases.

1. Build an array of a few (let's say 8 or so) cameras pointing outward from the center.

2. Use a stereo matching algorithm to extract a depth map from the perspective of each camera. Keeping track of the position and orientation of each camera in 3D space, these depths become a point cloud associated with each camera.

3. Determine the 3D location and orientation of each "eye" you want to render, then render all point clouds in 3D space to reconstruct a "reprojected" version of the scene from any desired viewpoint. Of course, the farther the eyes deviate from actual camera locations the more stretched/warped the image will appear, but that won't matter much as long as you keep the eye coordinates within the physical space occupied by the camera.

Honestly I'd be kind of disappointed if CMU doesn't actually try this. It's disappointing to think that perhaps all this buzz about "hackathons" (as the article mentions) is encouraging -- even at major research universities -- quickly slapping together components to make something kind of work, as opposed to fundamental algorithm development and proper engineering solutions.

Re: Robot will beam live Moon pictures to Oculus users

#12
I work on that robot. There has never been a serious attempt to use an oculus to control it. Also, Daniel did not build any part of that robot and is trying to take credit for other people's work. The BBC refuses to contact the Robotics Institute at CMU or Astrobotic to verify any details in the story.

Re: Robot will beam live Moon pictures to Oculus users

#14

I work on that robot. There has never been a serious attempt to use an oculus to control it. Also, Daniel did not build any part of that robot and is trying to take credit for other people's work. The BBC refuses to contact the Robotics Institute at CMU or Astrobotic to verify any details in the story.

Will the feeds be available to consume with a Google Cardboard?

Re: Robot will beam live Moon pictures to Oculus users

#15

I work on that robot. There has never been a serious attempt to use an oculus to control it. Also, Daniel did not build any part of that robot and is trying to take credit for other people's work. The BBC refuses to contact the Robotics Institute at CMU or Astrobotic to verify any details in the story.

Will the feeds be available to consume with a Google Cardboard?

Calculate the bandwidth required to send two high definition streams from the moon. Add the bandwidth required for telemetry from the rover and lander. See what communication speeds are available to and from the moon.

Also, try using an oculus with seconds of latency and see how pleasant it is.

The real point is that Daniel Shafrir borrowed that robot and a video camera and proceeded to take credit for years of work by a team of students and staff at CMU and somehow got a BBC reporter to publish his claims without verifying any information.

Re: Robot will beam live Moon pictures to Oculus users

#16

I work on that robot. There has never been a serious attempt to use an oculus to control it. Also, Daniel did not build any part of that robot and is trying to take credit for other people's work. The BBC refuses to contact the Robotics Institute at CMU or Astrobotic to verify any details in the story.

[deleted]

Re: Robot will beam live Moon pictures to Oculus users

#18

I work on that robot. There has never been a serious attempt to use an oculus to control it. Also, Daniel did not build any part of that robot and is trying to take credit for other people's work. The BBC refuses to contact the Robotics Institute at CMU or Astrobotic to verify any details in the story.

Not being open to receiving complaints about inaccuracies is against the IPSO Editor's Code of Practice.

  Clause 2 Opportunity to reply
  
  A fair opportunity for reply to inaccuracies must be given when reasonably called for.
You can file a complaint here: https://www.ipso.co.uk/

Re: Robot will beam live Moon pictures to Oculus users

#19
post #17

An occulus is just a dual display device (ie 2 cameras video feeds need to be transmitted) There is no "beam" or magic. Its 2 cameras, 2 video feeds. That's great and exciting if as general public, we have access to those video feeds.

'Beam' is a common synonym for 'transmit'.

Re: Robot will beam live Moon pictures to Oculus users

#20

Earlier quoted context omitted.

Will the feeds be available to consume with a Google Cardboard?

Calculate the bandwidth required to send two high definition streams from the moon. Add the bandwidth required for telemetry from the rover and lander. See what communication speeds are available to and from the moon. Also, try using an oculus with seconds of latency and see how pleasant it is. The real point is that Daniel Shafrir borrowed that robot and a video camera and proceeded to take credit for years of work…

That seems perilously close to academic fraud, although there's also the possibility that an ignorant reporter mistook speculative commentary for specific intentions.
Post reply on HN