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1
Move from Analog to Digital in
Global Security Systems
Which interface is best?
2
Video interface requirements for global security
systems:
• Minimize SWAP-C
- Number of cables needed for interfacing
- ...
3
A quick overview of the specs
4
Camera Link (Single Cable)
• Pros
- Well-established standard that is reliable
for short distance connection
- Enables v...
5
HD-SDI/3G-SDI
• Pros
- Well-established interface that is good when standard HDTV
is good enough for system
- Upgrade of...
6
GigE Vision
• Pros
- Provides a traditional way of setting up video networks
- Long, flexible, inexpensive cables
• Cons...
7
USB3 Vision
• Pros
- Commonly known standard based on consumer interface
- No frame grabber required (interface card req...
8
CoaXPress
• Pros
- One interface standard for systems
today and in the future –moving to
12 Gbps per cable
- One flexibl...
9
Overview of Pros and Cons
10
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Adimec.com
www.adimec.com
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Digital Video Interface Comparison for Global Security Applications

A comparison of the pros and cons of GigE Vision, USB 3 Vision, CoaXPress, Camera Link, and HD-SDI for as rugged digital video interfaces in global security and defense imaging systems.

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Digital Video Interface Comparison for Global Security Applications

  1. 1. 1 Move from Analog to Digital in Global Security Systems Which interface is best?
  2. 2. 2 Video interface requirements for global security systems: • Minimize SWAP-C - Number of cables needed for interfacing - Size and number of connectors needed for interfacing - Power consumption of interface - Cost of cables • Long cable lengths and flexible cables for routing throughout vehicles and use with slip rings • High reliability • Support HD resolution (color) at 60 frames/second and enable various image formats for backwards compatibility • Allow for upgrades to greater resolutions in the future - New CMOS sensors will enable even greater identification capabilities, sensitivity in low light situations, and recognition from greater distances
  3. 3. 3 A quick overview of the specs
  4. 4. 4 Camera Link (Single Cable) • Pros - Well-established standard that is reliable for short distance connection - Enables various image formats - Good for upgrade of camera in existing system using Camera Link - Power over the cable is optional • Cons - Limited bandwidth (only up to 30 fps possible with full HD color) - Does not allow for future upgrades of greater resolutions - Short, stiff, expensive cables
  5. 5. 5 HD-SDI/3G-SDI • Pros - Well-established interface that is good when standard HDTV is good enough for system - Upgrade of camera in existing system that is already using HD-SDI • Cons - Does not allow for different image formats or greater resolutions than HD (TV focused) - Extra cables for power, communication, triggering etc. are required
  6. 6. 6 GigE Vision • Pros - Provides a traditional way of setting up video networks - Long, flexible, inexpensive cables • Cons - Large R45 connector - Processing required to pack and unpack video generates additional heat and uncertain latency (reliability issues) - Bandwidth limited (no HDTV without compression possible over GigE) - Accurate triggering over the cable may be difficult to implement
  7. 7. 7 USB3 Vision • Pros - Commonly known standard based on consumer interface - No frame grabber required (interface card required) • Cons - Large connector and interface driver - Maximum throughput unpredictable (chipset, PC motherboard and driver dependent) - Sustainable speed is much lower than theoretical limit - Unreliable operation with longer cables (>3 m)
  8. 8. 8 CoaXPress • Pros - One interface standard for systems today and in the future –moving to 12 Gbps per cable - One flexible cable solution (includes power over cable): lowest SWAP and Cost - One cable interface - EMC/EMI friendly - Backward compatibly with 75 Ohm Coaxial cable (when using existing infrastructure like HD-SDI or even analog) - Any display format is possible - Low latency and stable video transfer, reliable with hardware control through direct memory access • Cons - Requires a frame grabber - Relatively new standard, not yet well-known in the industry
  9. 9. 9 Overview of Pros and Cons
  10. 10. 10 EUROPE ● N-AMERICA ● JAPAN ● ASIA-PACIFIC Adimec.com www.adimec.com

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