A Short Discussion on High Resolution Cameras
VICON A&E SUMMIT ‘09
Goals
• Understand new terms and technology
• Discuss megapixel camera benefits
• Discuss megapixel camera trade-offs
• Overview of new Vicon products
• Look at possible product applications
Mega Terms
• Pixel PICture ELement
• Pixel count, expressed as megapixels
• Pixels Per Foot
• Progressive scan
VICON A&E SUMMIT ORLANDO, FLORIDA JAN. 25-27, 2009
Megapixel Cameras
• Four Major Benefits – Higher definition = greater detail
– More coverage with fewer cameras
– Different aspect ratio = higher efficiency
– Progressive scan = stable picture
Higher Definition = Greater Detail
• Live Viewing
• After the Fact
• Multi Views
Fewer Cameras with Greater Detail
Fewer Cameras with More Detail
Resolution Relationship
1289 X 1024 VGA 1.3 MP
720 X 480 VGA
Different Aspect Ratio = Higher Efficiency
• Record the picture that is needed
Interlaced Scan vs. Progressive Scan
• Interlaced Scan
Megapixel Trade-Offs
• Greater bandwidth and storage requirements
• Four or more times greater
– But … a 3 MP camera can replace up to 3 standard cameras
Megapixel Trade-Offs
• Smaller pixels are normally less light sensitive
• PixelsPicture Element
New Camera; New Lens
• Lens Quality
•Optics true to the edges
• Chip/ Lens Alignment
• Back focus
Facts about lenses
• Most sellers of mega pixel cameras are selling “pixels” not image quality*– Standard Lenses are made for 489 TV Lines– Lens quality needs to equal camera quality
Les Simmonds
Security Electronics Magazine
Pixels Per Foot: It’s all about the details• Two ways to get detail.
1.Get the camera closer 1. Bigger lens / Move the camera
2.Collect more data.
How Many Pixels Are Needed?
Monitoring 20 PPFRecognition 40 PPFIdentification 60 PPFDetail 80 PPF
You be the judge…
License Plate Recognition
How the Viewer Sees It
Recognize and ID People
Viewing Detail
Crunching the NumbersCoverage at Resolution: Horizontal Feet Horizontal meters
NamePixels (H)
Pixels (V)
Megapixel Rating
General
Forensic
HighGeneral
Forensic
High
CIF 320 240 0.1 16 8 3 5 2 1
VGA 640 480 0.3 32 16 6 10 5 2
WVGA 752 480 0.4 38 19 9 12 6 3
SXGA 1280 1024 1.3 64 32 16 19 10 5
UXGA 1600 1200 1.9 80 40 20 24 12 6
QXGA 2048 1536 3.1 102 51 26 31 15 8
QSXGA 2560 2048 5.2 128 64 32 39 19 10
• Conventional box
• Indoor dome
• Indoor cube
• Outdoor dome
• Outdoor integrated with I/R
Megapixel Camera Line
I-ONYX Megapixel Cameras: Common Features
Resolution640 X 480 to 1280 X 1024
Frame Rate
2-30 FPSDependin
g on Resolutio
nPower12 VDC
Supplied or
POE
Lens Included
Compression
MJPEGOr
MPEG 4
Progressive Scan
I-ONYX MP-950
• f4.2mm / F1.8 megapixel lens
• 0.5 Lux at F1.8
• Integrated Mount
• Indoor dome camera
• Lens Included 4.2 mm
I-ONYX MPD-955
• Outdoor vandal-proof with IP66 protection
• Day and night function with mechanical IR cut filter
• Integrated f3.3~12 mm / F1.6 megapixel lens
• 0.05 Lux at F1.0
• Surface, flush and wall mount supported
I-ONYX MPD-955DN-O
• Day and night function with Mechanical IR Cut Filter
• Integrated f3.3~12mm / F1.4 Megapixel lens
• IP66 weatherproof
• 12 VDC or 24 VAC (POE)
• Use V814 AWM Mount
I-ONYX MP-955IR
• Vicon 1.3 Mega Pixel Cameras– Three times higher resolution– View larger areas– MJPEG or MPEG 4 compression– 2-8 FPS In Megapixel mode– Progressive scan– POE– Currently electronic iris only– The PTZ and fixed zoom lens is not
dead.
Bottom Line
IP Cameras and License Issues
• If all your product is software you have to charge for usage…..Camera License $$$$
• The Vicon plan– License Software (open platform)– Vicon cameras….no license– Third Party IP cameras license fee charged
– ONLY ONCE! It is reusable
Post Alarm Work
• Outdoor– School play grounds– Executive Parking areas– Corrections exercise areas
• Indoor– School Lunch
Rooms– Corrections Day
Rooms– Money handling
areas
Applications
Top Related