Tuesday, January 23, 2018

Facebook Oculus invented a new time unit called the ‘flick’

A flick (frame-tick) is a very small unit of time. It is 1/705600000 of a second, exactly.
1 flick = 1/705600000 second

Here’s a list of numbers into which 1/706,600,000 divides evenly: 8, 16, 22.05, 24, 25, 30, 32, 44.1, 48, 50, 60, 90, 100, 120.


Motivation
When working creating visual effects for film, television, and other media, it is common to run simulations or other time-integrating processes which subdivide a single frame of time into a fixed, integer number of subdivisions. It is handy to be able to accumulate these subdivisions to create exact 1-frame and 1-second intervals, for a variety of reasons.
Knowing that you should never, ever use floating point representations for accumulated, simulated time (lest your temporal accuracy degrade over time), the std::chrono time tools in C++ are ideal. However, the highest usable resolution, nanoseconds, doesn't evenly divide common film & media framerates. This was the genesis of this unit.
https://github.com/OculusVR/Flicks

https://techcrunch.com/2018/01/22/facebook-invented-a-new-time-unit-called-the-flick-and-its-truly-amazing


Wednesday, January 17, 2018

Is ATSC 3.0 really a Trojan Horse for next-generation AV and Collaboration?

Is ATSC 3.0 really a Trojan Horse for next-generation AV and Collaboration?

You may have seen the latest headline coming out of CES in Las Vegas last week about the Advanced Television Systems Committee (ATSC) release of ATSC 3.0, or more accurately stated the standards suite of protocols. How does this release impact the Audiovisual and Integrated Experience Association (AVIXA) members and the design of AV systems in general?

https://www.linkedin.com/pulse/atsc-30-really-trojan-horse-next-generation-av-braithwaite-cts/


Friday, October 20, 2017

Weatherproof TTL Serial JPEG Camera with NTSC Video and IR LEDs

https://www.adafruit.com/product/613




TECHNICAL DETAILS


  • Metal Housing size: 2" x 2" x 2.5"
  • Weight: 150 grams
  • Image sensor: CMOS 1/4 inch
  • CMOS Pixels: 30M
  • Pixel size: 5.6um*5.6um
  • Output format: Standard JPEG/M-JPEG
  • White balance: Automatic
  • Exposure: Automatic
  • Gain: Automatic
  • Shutter: Electronic rolling shutter
  • SNR: 45DB
  • Dynamic Range: 60DB
  • Max analog gain: 16DB
  • Frame speed: 640*480 30fps
  • Scan mode: Progressive scan
  • Viewing angle: 60 degrees
  • Monitoring distance: 10 meters, maximum 15meters (adjustable)
  • Image size: VGA(640*480), QVGA(320*240), QQVGA(160*120)
  • Baud rate: Default 38400, Maximum 115200
  • Current draw: 75mA without IR LEDs on. 250mA extra for IR LEDs
  • Operating voltage: DC +5V
  • Communication: 3.3V TTL (Three wire TX, RX, GND)

Monday, September 25, 2017

Gigabit Multimedia Serial Link (GMSL)

Gigabit Multimedia Serial Link (GMSL) serializer and deserializer (SerDes)

Right now this is a sort of standard built around Maxim's chips.
It seems to be used almost exclusively in the self driving car / automotive industry.

power and data is carried over a single Coax cable to a GMSL camera.





Maxim Integrated’s MAX9272A and MAX9275 gigabit multimedia serial link (GMSL) serializers and deserializers (SerDes) used in the Surround View Kit are designed primarily for automotive video applications such as ADAS & Infotainment. Maxim’s GMSL SerDes technology provides a compression-free alternative to Ethernet, delivering 10x faster data rates, 50% lower cabling costs, and better EMC. The ADAS Starter Kit comes with coax cables having a length of 20cm, but they can be exchanged to longer ones as Maxim's GMSL chipsets drive 15 meters of coax or shielded twisted-pair (STP) cabling, thereby providing the margin required for robust and versatile designs

https://www.maximintegrated.com/en/products/interface/high-speed-signaling/gmsl.html

http://shop.leopardimaging.com/product.sc?productId=283

https://www.macnica.eu/products/imi

https://www.renesas.com/en-us/solutions/automotive/adas/solution-kits/adas-view-solution-kit.html

https://www.renesas.com/en-us/solutions/automotive/adas/solution-kits/adas-surround-view-kit.html

Friday, August 04, 2017

JPEG2000 GPU Codec toolkit

http://comprimato.com/


Ultra-high speed compression and life-like viewing experience starts here. JPEG2000 Codec for GPU and CPU. Comprimato's JPEG2000 GPU Codec toolkit helps Media & Entertainment and Geospatial Imaging technology companies keep it real and with more accurate decision-making power.

Camera in a furniture screw







CIA Hacking Tool "Dumbo" Hack WebCams & Corrupt Video Recordings

https://gbhackers.com/cia-hacking-tool-dumba-hack-webcams/


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