Better low light performance, better IR performance
Sony’s STARVIS sensor technology increases the sensitivity of back-illuminated CMOS image sensors for security cameras.
STARVIS increases the light utilization efficiency over a wide range of wavelengths, enhancing sensitivity not only in the visible light region but also the near infrared light region that is often used by security cameras. As a result, STARVIS achieves a sensitivity of 2,000 mV or more per 1μ㎡ pixel size, and realizes 2 or more times the sensitivity of the existing CCD image sensor (EXview HAD CCD II).
(Fig. 1) Color product, when imaging with a 706 cd/㎡ light source, F5.6 in 1 s accumulation equivalent.
Dallmeier’s DF5200HD DN is a full body 2MP IP camera featuring a 1/1.9-inch CMOS sensor and up to 120ips frame rate. This PoE camera has a motorised 4.5-10mm varifocal lens, and a claimed minimum scene illumination number of 0.002 lux.
DALLMEIER makes nice cameras and this DF5200HD-DN, distributed locally by C.R. Kennedy, is no exception to the rule. It’s a full body camera with an alloy housing that doubles as a heat sink. It’s compact – measurements are 71mm x 66mm x 176mm and the camera weighs in at just 300 grams. The DF5200HD-DN is part of a family which includes IR bullet and dome variations, and the findings of this test are likely to apply in good measure to those cameras as well.
Quasar CB-6204 from DVTEL’s 1440P Quad HD Bullet series, distributed locally by QSS, uses new innovations, including DVTEL’s Quad HD resolution and multi-shutter WDR to push the boundaries of resolution and backlight performance.
DVTEL’S CB-6204 Series Quasar 1440P Quad IR HD bullet camera is another sweet release from the NJ-based company. The last DVTEL camera we tested was the 4K bullet and we loved it, especially during the day, when we thought it offered the best resolution of any camera we’d seen in street applications.
NSW Trains has released a tender for the rollout of a decentralised CCTV and Customer Help and Information Point (CHIP) capability to regional railway station and coach stop locations with the first phase deploying to 22 regional NSW locations.
NSW Trains currently utilises the Sydney Trains' CCTV and Help Point Systems within the Sydney Trains rail network area, which includes locations north to Hamilton and throughout the Hunter, South to Nowra, South West to Goulburn and West to Lithgow. But there is no CCTV at any regional NSW Trains beyond the Sydney Trains rail network area with the exception of Coffs Harbour Station.
We tested Hikvision Darkfighter in SEN a while back but post-SecTech Roadshow, I jumped at the chance to re-test the camera with Hikvision’s new Darkeye SLA lens.
WHEN you’re a lens junkie, a piece of glass like Hikvision’s Darkeye represents something mysterious and wonderful. At once it’s a lens capable of snaring the best possible performance from the camera wearing it and the answer to a prayer that lens quality will stop its slide to the abyssal plains of low cost. When it comes to lenses, you get what you pay for. In the case of Darkeye, you pay for what you get – it’s $A810 list, so this is an application-specific lens.
If you can identify the biggest stumbling blocks for installers trying to make sense of HD IP video surveillance then it’s easier to work towards planning for them or expanding your skill set, making installations faster and solutions more effective.
TRYING to commission HD IP cameras can be challenging but it’s even more challenging when you’re constrained by bandwith issues, required to position cameras in less than ideal locations, or forced by a low budget to employ a camera that might not be up to the job.
But what are the key stumbling blocks? There are so many factors to consider including managing storage, handling bit rate over public WANs, tweaking camera performance parameters for 24-hour operation, wrangling massive bandwidth demands in very busy scenes, the challenge of installing cameras to capture face recognition, as well as situational awareness.
Scentre Group’s CCTV Shootout held at Westfield Mall in Bondi Junction covered ID, mall and low profile cameras. Among other things, the shootout showed the vital importance of avoiding motion blur when you want face recognition.
SCENTRE Group’s CCTV shootout was great fun and really highlighted the challenges of quickly assessing the best camera in a large lineup. The application covers 3 key locations at Westfield Bondi Junction that typify challenges in many Scentre Group (Westfield) Malls. From the individual perspective, it’s about a definition of terms in the first instance, what does 'best' mean in relation to meeting a specification?
The Strand at Coolangatta has the best ocean views of any retail complex in Australia and a video surveillance solution to match after Chris-Tech Security Alarm Systems completed an installation comprising 60 Sony IP cameras and a Milestone video management solution.
FROM an operational perspective, retail centres like The Strand at Coolangatta in Queensland, are tough. There are multiple conflicting demands in complex environments. Surveillance must support safety, security and insurance risks, while being unobtrusive. The built environment includes variable lighting, challenging ceiling designs and compact spaces adjacent to vast open areas, including food courts and foyers that may challenge typical installation practices.
Sony’s SNC-VB630 is a full body 1080p HD camera that combines strong WDR performance with good low light performance and very low latency. In our test the VB630 offers useful situational awareness in low light levels and positively eats backlight for breakfast.
SONY’S Gen6 SNC-VB630 features a 1/2.9-inch progressive scan Exmor CMOS sensor, with approximately 2.14MP. This day/night 1080p camera claims a minimum scene illumination of .1 of a lux (0.06 Lux 30IRE) at a shutter speed of 1/30th of a second in colour, or down to 0.05 lux (30 IRE)in monochrome. I don’t go this low but I think under 1 lux at the lens in monochrome is getting towards the minimum for useful situational awareness in street applications. That’s a good number for an unassisted camera. In our test we get down around l lux at the lens in our darkest target area.