Precise iris control for image quality - September 2009 - Axis Communications SA - Hi-Tech Security Solutions
 
classic | mobile
Follow us on:
Follow us on Facebook  Share via Twitter  Share via LinkedIn
 

Search...
Hi-Tech Security Solutions Business Directory
Residential Estate Security Handbook 2017


Precise iris control for image quality
September 2009, CCTV, Surveillance & Remote Monitoring

Axis Communications and Kowa have introduced P-Iris, a new precise iris control that allows fixed network cameras to deliver better image quality in both indoor and outdoor applications.

A P-Iris lens, together with specialised software, can automatically and precisely regulate the iris opening to enable better contrast, clarity, resolution and depth of field. The advanced iris control will be especially beneficial for megapixel/HDTV cameras and demanding video surveillance applications.

“P-Iris allows fixed network cameras to reach a new level of performance in image quality,” said Roy Alves, country manager for Axis Communications in South Africa. “This is a revolutionary improvement for video surveillance cameras and for the industry in general as we expect P-Iris to become a standard that eventually replaces DC-iris lenses.”

DC-iris (auto-iris) control for surveillance cameras with fixed/varifocal lenses does not enable the camera or user to know the exact position of the iris opening, which is needed to optimise image clarity. Axis saw a need to solve this and found Kowa, an innovative optics manufacturer, to jointly develop a solution.

“The P-Iris lens uses a stepper motor that allows the position of the iris opening to be precisely controlled,” said Tosao Tohjima, technical director at Kowa CCTV Products. “P-Iris is an innovative solution that truly allows a network camera, particularly a megapixel network camera, to perform optimally in all lighting conditions.”

A megapixel camera, which generally has smaller pixels than a standard resolution camera, can take advantage of P-Iris to maintain the delivery of crisp, high-resolution images, even in difficult lighting situations.

A P-Iris lens works together with software in the network camera to automatically provide the best iris position for optimal image quality in all lighting conditions. Images will be sharper, with better contrast, resolution and depth of field. Having good depth of field – where objects at different distances from the camera are in focus simultaneously – is important in the video monitoring of, for example, a long corridor or parking lot.

In very bright situations, P-Iris limits the closing of the iris to avoid blurring (diffraction) caused when the iris opening becomes too small. This can typically happen in cameras that use DC-iris lenses in combination especially with megapixel sensors that have small pixels. Being able to avoid diffraction and at the same time benefit from an automatically controlled iris is highly valued in outdoor video surveillance applications.

P-Iris will be incorporated in Axis network cameras, beginning with the 3-megapixel Axis P1346 Network Camera.

For more information contact Roy Alves, country manager, Axis Communications, +27 (0)11 548 6780, roy.alves@axis.com


Credit(s)
Supplied By: Axis Communications SA
Tel: +27 11 548 6780
Fax: +27 11 548 6799
Email: sasha@axis.com
www: www.axis.com
  Share via Twitter   Share via LinkedIn      

Further reading:

  • Nice price, but consider the cost
    August 2018, Technews Publishing, CCTV, Surveillance & Remote Monitoring, Residential Estate (Industry)
    The influx of cheap surveillance products in recent years has put the squeeze on everyone in the supply chain, from the more established equipment manufacturers who have to compete with them, to the installers and system integrators who are forced to slash their margins.
  • Take estate security seriously
    August 2018, Fidelity Security Group, Integrated Solutions, CCTV, Surveillance & Remote Monitoring, Perimeter Security, Alarms & Intruder Detection
    While the growth in residential estates continues, crime syndicates continue to target lifestyle estates, more often than not using inside information to gain access.
  • Securing Serengeti
    August 2018, Technews Publishing, This Week's Editor's Pick, CCTV, Surveillance & Remote Monitoring, Access Control & Identity Management, Perimeter Security, Alarms & Intruder Detection, Integrated Solutions, Security Services & Risk Management, Residential Estate (Industry)
    Serengeti Estate offers luxury, golf, conferencing and security, and the estate is on a new growth phase to incorporate more people and services within its 17.5 km boundary.
  • Local estate, local security
    August 2018, Technews Publishing, Residential Estate (Industry), CCTV, Surveillance & Remote Monitoring, Access Control & Identity Management, Perimeter Security, Alarms & Intruder Detection
    Garlington Estate recently made the decision to improve some of its security systems and turned to Excellerate Services to assist in the upgrades.
  • Major security upgrade for Kindlewood Estate
    August 2018, Technews Publishing, Access Control & Identity Management, CCTV, Surveillance & Remote Monitoring, Perimeter Security, Alarms & Intruder Detection
    Kindlewood upgrades to IP cameras for its gates and perimeter security, and biometrics for access control.
  • Surveillance technology that’s as blind as a bat
    August 2018, Axis Communications SA, Perimeter Security, Alarms & Intruder Detection, Integrated Solutions, Residential Estate (Industry)
    Blind technologies, such as radar, should be used in conjunction with other technologies, complementing visual and thermal video surveillance to support and optimise the security system.
  • Secure in their retirement years
    August 2018, Technews Publishing, This Week's Editor's Pick, CCTV, Surveillance & Remote Monitoring, Access Control & Identity Management, Residential Estate (Industry)
    A retirement village with a limited budget upgrades its security to protect residents from increasing criminal activities.
  • Protection via thermal detection
    August 2018, Technews Publishing, This Week's Editor's Pick, CCTV, Surveillance & Remote Monitoring, Residential Estate (Industry)
    Thermal cameras offer almost unbeatable surveillance security for estates and are the envy of any security manager.
  • Keep it simple, and secure
    August 2018, Forbatt SA, Residential Estate (Industry), CCTV, Surveillance & Remote Monitoring
    If you are in the market to have CCTV installed or upgraded, how do you decide on the best cameras, recorders, installation locations and so on?
  • Does my remote site need a video edge device?
    August 2018, CCTV, Surveillance & Remote Monitoring, Residential Estate (Industry)
    Video edge devices are essentially devices that move traditionally centralised video tasks away from the video surveillance command centre and towards the edge.
  • Make CCTV testify for you
    August 2018, Technews Publishing, This Week's Editor's Pick, CCTV, Surveillance & Remote Monitoring, Security Services & Risk Management
    Warrant Officer Bongiwe Gqotso highlighted some key points to consider when it comes to extracting evidence from your surveillance installation at the Residential Estate Security Conference 2018.
  • Active deterrence Wi-Fi camera
    August 2018, Zhejiang Dahua Technology, CCTV, Surveillance & Remote Monitoring, Residential Estate (Industry)
    Lechange has launched LOOC, its new active deterrence Wi-Fi camera with an advanced PIR detector, built-in spotlight and 110 dB security siren.

 
 
         
Contact:
Technews Publishing (Pty) Ltd
1st Floor, Stabilitas House
265 Kent Ave, Randburg, 2194
South Africa
Publications by Technews
Dataweek Electronics & Communications Technology
Electronic Buyers Guide (EBG)

Hi-Tech Security Solutions
Hi-Tech Security Business Directory (HSBD)

Motion Control in Southern Africa
Motion Control Buyers’ Guide (MCBG)

South African Instrumentation & Control
South African Instrumentation & Control Buyers’ Guide (IBG)
Other
Terms & conditions of use, including privacy policy
PAIA Manual
         
    Mobile | Classic

Copyright © Technews Publishing (Pty) Ltd. All rights reserved.