Solar cell technology cameras

A new camera range from Stemmer Imaging uses a sensor, based on solar cell technology, to allow imaging from scenes which simultaneously contain both very light and very dark areas. The company says this makes them ideally suited to use in environments with a very high dynamic range, or where there are strong and unpredictable brightness fluctuations. The new FX4 HDR (High Dynamic Range) sensor produces a logarithmic signal output. This enables fine differences in brightness to be imaged even in very bright
February 2, 2012 Read time: 2 mins
The image shows a 40W light bulb, image on the left with a conventional CCD sensor and on the right with the FX4 HDR sensor
A new camera range from 822 Stemmer Imaging uses a sensor, based on solar cell technology, to allow imaging from scenes which simultaneously contain both very light and very dark areas. The company says this makes them ideally suited to use in environments with a very high dynamic range, or where there are strong and unpredictable brightness fluctuations. The new FX4 HDR (High Dynamic Range) sensor produces a logarithmic signal output. This enables fine differences in brightness to be imaged even in very bright scenes, without saturation.

 The FX4 HDR sensor features a patented pixel structure that provides a truly logarithmic output with effective suppression of fixed noise and gives a dynamic range of 120 db. According to Stemmer, this equates to a 1,000 times greater brightness ratio (ratio of the highest brightness value to the lowest brightness value that can be imaged in a scene) compared to conventional linear CCD sensors, which typically have a dynamic range of 60 db.
Detection, Monitoring & Machine Vision

For more information on companies in this article

Related Content

  • ITS homes in on cycling safety
    April 9, 2014
    A new generation of ITS equipment is helping road authorities get to grips with cycle safety – and not a moment too soon as Colin Sowman discovers. Cyclists - remember them? Apparently not. At least not according to the OECD 2013 report Cycling, Health and Safety which contains the statement: ‘Cyclists are often forgotten in the design of the road traffic system’. Looking through the statistics that exist (each country appears to compile them differently) it is not difficult to see how such a conclusion cou
    Read More
  • Smart Spanish city trials cell-based traffic management
    November 7, 2013
    David Crawford reports on an urban electronic nervous system. The northern Spanish city of Santander – historically a port - is now an emerging technology showcase attracting global attention as a prototype for a medium-sized smart city of the future. In a move to determine the optimal use of available data, it is creating a de-facto experimental laboratory for sensor and mobile phone-based urban traffic management and environmental monitoring innovations.
    Read More
  • Jenoptik highlights Vector ANPR cameras
    April 4, 2016
    Jenoptik, the international solution provider for global traffic safety, is highlighting its Vector ANPR cameras which are a vital tool used by police and security forces around the globe. Operated in temporary and long-term installations, Vector is able to rapidly identify and report on vehicles of interest. Working as stand-alone units, or part of a wide ANPR network, Vector provides a 24/7 monitoring capability, with each camera capable of capturing thousands of plate reads every day.
    Read More
  • Sophisticated vehicle classification system
    January 24, 2012
    Stemmer Imaging is launching a sophisticated vehicle classification system that allows both the class of the vehicle, such as motorcycle, car, taxi, light van, bus or truck, to be identified as well as the vehicle make, model and colour and can be linked with ANPR systems. It utilises the Manto pattern recognition tool, which is part of the company's Common Vision Blox hardware-independent machine vision toolkit. Potential applications for the systems include congestion charge monitoring and other road toll
    Read More

Highlighted Content