Ten Reasons to Buy a Network Camera. Focus 10 of the most important functional differences between...
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Ten Reasons to Buy a Network Camera
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Focus
10 of the most importantfunctional differences
between analogand network cameras
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End to interlace problems
11
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1. End to interlace problems
Interlaced scan Each image formed from two interlace fields Blurriness from capturing moving objects, even
when connected to a DVR
Crystal clearimages evenwith a high
degree of motionin the scene
Crystal clearimages evenwith a high
degree of motionin the scene
Progressivescan
Progressivescan
Entire imagecaptured at
one time
Entire imagecaptured at
one time
BENEFITS• Superior image quality • Full image details• Precise, accurate information
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1. End to interlace problems
One complete frame using progressive scan
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Interlaced scan Interlaced scan Interlaced scan Interlaced scan Progressive scan Progressive scan
1. End to interlace problems
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Power over Ethernet increases savingsand reliability
22
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No need forpower outlet at
cameralocation
No need forpower outlet at
cameralocation
IEEE802.3afIEEE802.3af IndustrystandardIndustrystandard
BENEFITS• Cost savings • Reliability with centralized power backup• Simple installation
2. Power over Ethernet
Not available
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2. Power over Ethernet
Both network cameras with and without built-insupport for PoE can take advantage of a UPS device
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Megapixel resolution33
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Many resolutionsMany resolutions Different aspect ratiosDifferent aspect ratios
1 megapixel is 10x theresolution of CIF,
2 megapixel is 20x!
1 megapixel is 10x theresolution of CIF,
2 megapixel is 20x!Digital PTZDigital PTZ
BENEFITS• More details, easy identification • Digital PTZ, higher reliability and
simultaneous pan/tilt
3. Megapixel resolution
Stuck with NTSC/PAL resolution 0.4 Megapixel at 4CIF and 0.1 at CIF Limited image details
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3. Megapixel resolution
CIF CIF MegapixelMegapixel
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3. Megapixel resolution
Resolution comparisons Aspect ratios
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Intelligence at the camera level
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Intelligent videoIntelligent video Purpose-built, highlyintegrated hardwarePurpose-built, highlyintegrated hardware
Intelligent features: Built-inVMD, Alarm management,
Image enhancement
Intelligent features: Built-inVMD, Alarm management,
Image enhancement
Intelligent algorithms:Number plate recognition,
People counting
Intelligent algorithms:Number plate recognition,
People counting
BENEFITS• More details, easy identification • More productive and effective means of surveillance• Event-driven• Scalable systems
4. Intelligence at the camera level
Not available
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4. Intelligence at the camera level
HallwayDoor
Excluded
Excluded
Included
Included
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Integrated PTZ input/output control
55
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Integrated I/O cantrigger anythingand be triggered
by anything
Integrated I/O cantrigger anythingand be triggered
by anything
PTZ control overthe same network
that transportsthe video
PTZ control overthe same network
that transportsthe video
PTZ commandssent over theIP network
PTZ commandssent over theIP network
BENEFITS• Less cabling, cost savings, increased
functionality and integration potential
5. Integrated PTZ and I/O control
Cabling separate from the video signal Costly and cumbersome
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Example: Typical I/O use –integration with alarm
5. Integrated PTZ and I/O control
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Integrated audio66
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Audio captured atthe camera
Audio captured atthe camera
Synchronized withthe video
Synchronized withthe video
Can be integrated intothe same video streamCan be integrated intothe same video stream
Two-way audio (duplex,half duplex, simplex)
Two-way audio (duplex,half duplex, simplex)
BENEFITS• Many possibilities: simplex, half duplex, full duplex • Synchronized audio and video• Easy to install, cost savings
6. Audio
Only possible with separate audio lines to the DVR
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6. Integrated audio
Entrance control Remote dialogue and gate/door control
Listen in on remote sounds Audio surveillance
Provide audio feedback to surveillance scenes
Example: Communicate andopen a door remotely
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Securecommunication
77
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Video encryptionVideo encryption Authentication usingencrypted certificatesAuthentication usingencrypted certificates
Authorization: to verify andapprove the identity of the device
Authorization: to verify andapprove the identity of the device
PrivacyPrivacy
BENEFITS• Secure image capture• Secure transmission • Evidence trail secured
7. Secure communication
No encryption No authentication Anyone can tap into the video or replace the signal
from a camera with another video signal
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7. Secure communication
Examples of achieving privacy VPN SSL/TLS (HTTPS)
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Flexible, cost-effective infrastructure choices
88
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IP = established,standardized, interoperable
IP = established,standardized, interoperable
Digital images =no quality reduction
Digital images =no quality reduction
Many streams transmittedover the same line
Many streams transmittedover the same line
A single network wire =hundreds of simultaneous
full frame rate video streams
A single network wire =hundreds of simultaneous
full frame rate video streams
BENEFITS• Image quality, flexibility, scalability,
future-proof• Resulting costs comparatively low
8. Flexible, cost-effective infrastructure
Expensive coax, proprietary fiber, wireless Distance affects image quality Adding power, I/O and audio further
complicates this situation
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8. Flexible, cost-effective infrastructure
IT - SecurityconvergenceIP
inIn
dust
rial
Solut
ions
IP inSecurity
IP in Voice
Over IPIP in Building
Management
SystemsTheIP way
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True digital solution99
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Images digitalized onceImages digitalized once Stay digitalStay digital
No unnecessaryconversions
No unnecessaryconversions No image degradationNo image degradation
BENEFITS• Superior image quality
9. True digital solution
With every conversion image quality is lost: Analog signal digitized in camera’s DSP Digital signal converted back to analog for transport over coax Signal once again digitized at the DVR for recording
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9. True digital solution
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Lower total cost of ownership
1010
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10. Lower total cost of ownership
COMPARE
The cost per channel Flexibility and performance
CONSIDER
Back end applications and storage
Industry standard, open-system based servers vs. proprietary hardware like a DVR
Infrastructure used Can it be leveraged for other applications?
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The futurebelongs to
network cameras
Conclusion
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The future belongs to network cameras
Market reports
Remote accessibility
Easy, future-proof integration
Scalability and flexibility
Cost-effectiveness
Distributed intelligence
Proven technology
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The best in network video!
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