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 2018


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)
  Share via Twitter   Share via LinkedIn      

Further reading:

  • Video observation in the hotel industry
    March 2019, Dallmeier Electronic Southern Africa , Entertainment and Hospitality (Industry), CCTV, Surveillance & Remote Monitoring
    The best is just good enough: Hamburg's new luxury hotel The Fontenay relies on video security technology from Dallmeier.
  • Ideal operating temperature?
    March 2019, Leaderware, Technews Publishing, This Week's Editor's Pick, CCTV, Surveillance & Remote Monitoring
    Walk into any CCTV control room in South Africa, whether in the middle of a heat wave or mid-winter, and you will probably see a number of operators wearing jackets, some huddled over slightly in an attempt to get warm.
  • Using security to enhance the customer experience?
    March 2019, Axis Communications SA, Fidelity ADT Security, ISDS, This Week's Editor's Pick, CCTV, Surveillance & Remote Monitoring, Integrated Solutions, Security Services & Risk Management, Retail (Industry)
    Customer experience will overtake price and product as the key retail brand differentiator by the year 2020. Will the security industry be part of this transformation?
  • Intelligent video transforms the ­in-store experience
    March 2019, Hikvision South Africa, This Week's Editor's Pick, CCTV, Surveillance & Remote Monitoring, Integrated Solutions
    The customer experience is more important than ever as retailers are striving to ­differentiate themselves in a challenging and crowded market.
  • MIPS EMEA 2019
    March 2019, Milestone Systems, News, CCTV, Surveillance & Remote Monitoring, Integrated Solutions
    Milestone Systems will kick off Community Days 2019 (MIPS) in Copenhagen, with more than 1500 participants and input from leading industry professionals.
  • Secutel partners with Matrix Comsec
    March 2019, Secutel Technologies, News, CCTV, Surveillance & Remote Monitoring, Access Control & Identity Management
    Secutel Technologies announced it is the exclusive distributor of Matrix Comsec access control products and IP video management software in South Africa. Established in 1991, around 40% of Matrix’s ...
  • Cathexis appoints European BDM
    March 2019, Cathexis Technologies, News, CCTV, Surveillance & Remote Monitoring
    Rene Reinhardt has recently joined Cathexis EU as European business development manager.
  • Ski Dubai opts for Cathexis
    March 2019, Cathexis Technologies, Retail (Industry), CCTV, Surveillance & Remote Monitoring
    Cathexis delivers seamless integration of 279 IP cameras and the capability to integrate over 400 cameras in future to Ski Dubai.
  • Maximise retail surveillance
    March 2019, Regal Distributors SA, Products, CCTV, Surveillance & Remote Monitoring
    Hikvision uses technologies such as artificial intelligence (AI) and deep learning to give retailers valuable insight into real-time operating conditions.
  • Top five security trends to look out for in 2019
    March 2019, Genetec, CCTV, Surveillance & Remote Monitoring, Cyber Security
    From the continued focus on cybersecurity to the acquisition of global players, Genetec highlights the top five security trends to look forward to in 2019.
  • AxxonSoft supports ONVIF Profile T
    March 2019, Secutel Technologies, News, CCTV, Surveillance & Remote Monitoring
    ONVIF’s Profile T standard has an extended set of functions for video analytics and video/metadata streaming.
  • Turbo-charged security
    March 2019, Hikvision South Africa, CCTV, Surveillance & Remote Monitoring, Entertainment and Hospitality (Industry)
    Tanzania’s Galaxy hosts up to 400 gamblers day and night, but the casino does not rely on mere luck for a great video security system.

 
 
         
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.