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3D 3K 12-bit RAW camera project
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  • zcreamzcream

    Some threads with video capture using open source tools and Flea3. Essentially Flea3 supplies DirectShow dlls This allows compatiblity with VirtualDub. FireCapture also supports video capture - however it seems to be a RAW sequence - not Cinema DNG.

    http://www.mathworks.com.au/matlabcentral/newsreader/view_thread/315855

    http://www.ptgrey.com/support/kb/index.asp?a=4&q=267

    http://www.ptgrey.com/support/kb/index.asp?a=4&q=310&ST=

    http://solarchat.natca.net/index.php/en/this-is-solar-chat/6-this-is-solarchat-/83843-for-flea-3-usb3-12q-fl3-u3-13y3m-c-users

  • zcreamzcream

    I did consider SFF PCs as an option. Some questions came up.

    How does one do preview ?

    How can I control the camera ?

    What about battery options ?

    A laptop is the best option as I don't need to worry about a battery or preview. Stereoscopic player allows for a preview.

  • Vitaliy_KiselevVitaliy_Kiselev

    My point is that in PC area exist powerful small computers. And note as capture device is not very handy on set.

  • zcreamzcream

    @Vitaliy_Kiselev Because my favorite cutting editor is FCP7. Second reason is that a Apple product is not that more expensive on the trailing edge of the tech curve. i.e. Last years tech. Also, it keeps its value better. I can use this for a couple of years and sell it for a decent price.

    This also allows usage of the thunderbolt port for Blackmagic Ultrastudio 3D for lossless capture from Z10000 as well as grading with Resolve.

    It allows for a flexible setup.

  • zcreamzcream

    I have also decided to research options for compressed storage. Fast Compression - based in Moscow offers a CUDA JPEG encoder. JPEG offers 12-bit encoding options in 4:2:2 and 4:4:4.

    The open source version with CPU encoder are available here - http://trac.osgeo.org/gdal/wiki/TIFF12BitJPEG http://www.gdal.org/frmt_jpeg.html

    Uncompressed JPEG offers 3-5x compression. Even a 97% quality JPEG will offer 10x compression and be visually lossless. At 12-bit 4:2:2 the image quality will be good enough for painless keying while offering lower compression.

  • Vitaliy_KiselevVitaliy_Kiselev

    Why use MacBook instead on much cheaper PC?

  • zcreamzcream

    While the camera makes its way to me, I decided on the capture hardware. The last Macbook Pro with a DVD drive was the mid-2012 Macbook 9,1. I decided on the i7 model with High res 1680x1050 display. This has the advantage of being a standalone capture and edit station. It runs FCP7 and Davinci Resolve. The GT650m is also CUDA capable. The fastest version is a Core i7 Ivy Bridge 2.7GHz. I am going to use the Samsung 480GB or 960GB SSD in the SATA III capable DVD drive using a caddy. This SSD is capable of 400MBps write speeds. The 480GB version allows for a 3D uncompressed RAW 3K recording upto an hour. If more storage is needed, I can copy it to the standard HDD supplied in the MBP.

  • zcreamzcream

    My first trial recorder will be the Retina Macbook Pro mid-2012 2.3 GHz i7. Soeren was able to record one stream using an embedded pico-ITX quad-core 1 GHz Via CPU. With the Macbook Pro, I can connect a dual SSD using Thunderbolt. The 2x USB3 streams can be used for 2x cameras. Its important to understand that the limitations of 200 MBps was related to the USB3 driver per camera.

    So far, I am hoping that this is a limitation per USB3 connection, unrelated to the USB3 standard itself.

    Two cameras can sustain 1.3 MP 120 FPS each, for a total of 340 MB/s, into a single $60 USB 3.0 interface card with no dropped data

    http://ww2.ptgrey.com/USB3-resources

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