RIBCAGE AIR: 3D DATA & FLIGHTPATH RECONSTRUCTION
Back-Bone
, , , , , , , , , , , , Ribcage, Ribcage AIR
RIBCAGE AIR: 3D DATA & FLIGHTPATH RECONSTRUCTION

With this fun project we used XYZ RGB’s Scannerkiller technology to extract and reconstruct an accurate flight-path and virtual camera from some of our drone footage. We used a Ribcage Modified Hero4 Black mounted on a 3DR Solo. Using only the video frames we are able to extract 3D models and camera positions. A virtual camera can then be created in 3DS MAX from the data. Accurate measurements, flight-path information, model reconstruction and visual effects are all possible using this method. No GPS data was used.

 

Equipment Used:

  • Ribcage Modified Hero4 Black
  • 5.4mm 10MP M12 lens
  • 0.6 OD Neutral Density Filter
  • 3DR Solo + Gimbal

Software:

  • Scannerkiller
  • 3DS MAX
  • After Effects

For more info:
xyzrgb.com

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About the Modulus Sensor Housing
Back-Bone
, , , , , , , , , , Ribcage
About the Modulus Sensor Housing

Designed for developers with special applications, our Modulus Sensor Housing provides protection and infinite lens mounting options for the GoPro Hero4 image sensor when removed from the camera. Use the included 12” sensor extension ribbon to place the image sensor away from the camera body. The sensor housing can be mounted on any standard 1/4”- 20 mounting point using the included mounting bracket. Two back plates are provided for maximum flexibility – with two sensor housings you can use alternate back plates to mount them directly back-to-back for the smallest amount of parallax possible. Sensors can also be mounted back-to-back with an offset of 90°: one sensor in landscape and the other in portrait orientation. This allows high frame rate shooting in 16:9 modes without losing the ability to stitch a full 4K resolution* 360° video with only two cameras. The module can be configured so that the ribbon connector comes out the back, top, bottom or right/left side. Bundle this housing with a Ribcage Mod Kit for maximum usability!

Modulus sensor housing
Components for the Modulus sensor hoursing

What you will need:
1. Ribcage Air modified Hero4
2. Modulus sensor housing
3. Custom cut filters (optional)

12" sensor extension ribbon
12" sensor extension ribbon for the modulus
M12 lens mount, deep socket M12, C and CS mount ring
M12 lens mount, deep socket M12, C and CS mount ring adapters for the Ribcage
Modulus sensor housing and tripod mounting bracket
Components for the Modulus sensor housing and tripod mounting bracket
Modulus sensor housing installation

Features:
1. Compatible with GoPro Hero4 (Camera must be disassembled)
2. 12” extension ribbon separates image sensor from camera
3. Ribbon can be configured to come out the back, top, bottom, left or right of the housing
4. Tripod mount included
5. Compatible with M12 (S-Mount), CS and C-Mount lenses and more with adapters
6. Precision CNC machined aluminum parts

tinyplanet-1
Still taken from a 360 VR video
tinyplanet-2
Still taken from a 360 VR video

Designed with maximum flexibility in mind, our new aluminum Ribcage 3x mount will give you lots of options for your 360° spherical videos at a much lower cost. Ribcage Modified Hero4 cameras can be mounted in either vertical or horizontal orientation. When in vertical configuration (cameras on their sides) you can take advantage of all the shooting modes the cameras have to offer to achieve near 6K/30 or full 4K/60*. In addition, when in vertical configuration the battery compartment and all the buttons are easily accessible including the side button. The Ribcage 3x mounting bracket also supports our Modulus Sensor Housing which can be connected directly. The camera mounting plates can be connected to put the cameras in horizontal configuration, or they can be turned over so the camera bodies hang underneath when Modulus Sensor Housings are connected via our extended jumper. Stock (unmodified) GoPro Hero4 cameras can also be used** (vertical configuration only). The mount is compatible with both 1/4” – 20 and 3/8” – 16 tripod mounts.

3x-modulus
Ribcage 3x mount
Modulus sensor housing

Sample footage taken with our Ribcage 3X VR Mount. This mount is capable of holding three Ribcage Modified Hero4 cameras in either portrait or landscape orientations. When in portrait (sideways) orientation all the shooting modes on the camera can be used while still getting full spherical coverage. That means you can take advantage of the added resolution of 4K or increased frame rates. In addition the battery door, the ports and all buttons are easily accessible when in portrait configuration.

This footage was shot in 2.7K/60 which produces a stitched output greater than 4K. Shooting on 4K/30 will produce a stitched output of about 5800×2900. In this case the video was output at 4096 x 2048 @ 60fps

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RIBCAGE: BACKYARD MACRO
Back-Bone
, , , , , , , , , , , , , , , , Ribcage
RIBCAGE: BACKYARD MACRO

There’s a whole world of life around you everywhere if you just stop to look a little closer. All of these creatures were filmed in a suburban backyard flower garden in Ottawa, Canada.

This video was shot entirely with a GoPro Hero4 Black modified with our Ribcage Mod Kit. A Computar 2/3″ 3.3X Macro Zoom lens was used.

Settings:

  • Protune mode 2.7K/60 Wide
  • White Balance ‘Native’
  • Color ‘Flat’
  • Sharpness ‘Medium’

Color was graded in post using Adobe Speedgrade CC 2014. Frame rate slowed to 30fps in Premiere.

Captures were performed over two days at dusk as the insects were less likely to move away. An LED ring light was used for added illumination. As well a 2-axis macro focusing rail was used to make fine adjustments which made framing the shots much easier.

IMG_20150620_203546 (1)  IMG_20150620_202710 (1)

The 2/3″ 3.3X Macro Zoom lens is available in our shop:

http://www.back-bone.ca/product-category/lenses/



 





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HERO3 & HERO4: A CLOSER LOOK





















Jon Clouter







, , , , , 				


Ribcage, Teardowns				









HERO3 & HERO4: A CLOSER LOOK
The following image gallery highlights some of the main changes in the new Hero4 cameras. Check back for updates!


 


 






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HERO4 SILVER TEARDOWN





















Jon Clouter







, , , , , , , 				


Teardowns				









HERO4 SILVER TEARDOWN
Hero4Silver


 


 


Now that we’re deep into our new round of development on the latest Ribcage Mod, we thought we’d share our experience so far starting with the Hero4 Silver. We’ve pulled it apart so you can see what’s new. It appears to be very similar to the Hero3+ Black with the same sensor and almost identical shooting features. It does of course have some great new additions, in particular the built in screen that’s brighter and clearer than the Hero3 BacPac. If you’re wondering: Yes you can attach the Hero3 LCD BacPac on top of the built in screen and it does work. It even gives the older screen the swiping menu actions that the new one has. Now lets see what’s inside!


What follows should not be considered instructions. New modification instructions will be available once the new Ribcage Mod Kit for Hero4 is released.


As before the faceplate is held on with a series of tabs and some adhesive tape.
As before the faceplate is held on with a series of tabs and some adhesive tape.


IMG_2184
This time around we find it a little easier to start pulling it up from the bottom rather than the top left. The faceplate comes off easily when you work your way around.


button
In this version of the camera the power/mode button is on its own. In the Hero3 cameras it was attached to the faceplate. It’s much easier to remove now.


housing_screws
Next we remove the screws that hold the assembly into the camera body. The lower left hand screw is shorter than before.


housingpop
As with the Hero3 there’s a small groove above the HDMI and USB ports that allows you to pop the housing up slightly with a small screw driver.


 


outofhousing
Once you’ve got the ports free from the housing you can wiggle the assembly free by gripping the lens. The assembly should hinge open as pictured.


open
There are a series of ribbons that attach to the new screen which must be disconnected later.


 


 


 


 


 


 


 


 


 


 


 


sensorscrews
Next we disconnect the image sensor by removing the four screws on the back.


sensorpop
A gentle tug releases the image sensor connector from the main board.


 


board-screw
We remove the screw holding the main board to the aluminum frame.


lcd_socket
Next we need to release the front LCD/button ribbon from the board by pulling off the black tape, pulling up on the black locking tab and gently tugging the ribbon free.


board-remove
Now that it’s detached we can angle the main board out from around the lens assembly.


 


 


 


 


 


 


 


 


tape2
Now we can fold the board back over into the housing again to access the ribbon connections on the back. They are covered in some light tape, which must be removed.


 


seperate_ribbons
Now we flip up the three locking tabs to free the ribbons and pull up on the white connector to free it from the board.


 


lensscrew
The main board is now free from the housing. We can now take the aluminum frame and remove the lens.


LCD_ribbon
Lastly we’ll remove the LCD button strip. Like in the previous model it’s held down with some sticky adhesive so it must be peeled off slowly and carefully. The entire LCD is stuck down in this version. In our initial tests we didn’t want to force the screen off, so we propped up the aluminum frame off the surface of the desk and placed some soft foam underneath. We added a small weight to the exposed rear of the screen and the constant small pressure from the weight cased the screen to drop off after about half an hour. We are currently working on a much faster method for this step.


 


 


 


 


 


 


 


parts
So there you have it. As before it’s really not that hard if you take your time. In our next post we’ll highlight some of the physical differences between the Hero3 Black and the Hero4 Silver.





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