Poor surveillance camera placement along with a bad solution design could end up compromising a security system and may render some cameras of little to no security value, says MARC VAN JAARSVELDT, consultant for The Surveillance Factory.
Despite the exciting features of today’s video surveillance cameras, poor solution design and poor camera placement compromises the end result and renders most cameras of little or no security value. He says that this ultimately results in a camera-system that may fail to solve security challenges on a site.
There is a clear lack of risk-analysis skills and the ability to design a solution that offers to maximise security value. What clients need today is a detailed site-audit and a resulting solution that solves security challenges and enhances the client’s awareness of their security environment.
Traditionally, video surveillance systems have been poorly designed and are still compromised despite the plethora of advanced features that cameras now have: Todays IP cameras can take advantage of some incredible features that they now offer: ultra-high resolution, advanced WDR (wide dynamic range), built in analytics and edge storage. But the design methodology used often does not make the best use of these features and fails to deliver on a security level.
The Surveillance Factory has seen many camera solutions constructed using what is referred to as a “general-overview” camera: These cameras are chosen to provide a wide or broad overview of a large area giving the sense that this area is adequately surveilled, but in reality, they offer nothing more than a bird’s-eye or panoramic view with no specific intention to manage risk within that area. If there is an incident of any kind, there is often no forensic value contained within the video footage because the overview is too wide and the camera, despite the fact that it may be a high resolution camera, is not performing a specific function by viewing an identified target.
In nearly all cases the video-camera position selected was incorrect. Placing it too far away and not using it to manage a specific area, makes it generally impossible to identify a target. The issue lies in the camera’s inability to capture the right number of pixels-on-target required for identification from that distance and position.
The solution lies in selecting the correct video camera suited to a specific area and more importantly, making certain that the camera addresses a specific risk and does not fall into the general overview trap: “You will then get excellent, high quality footage all the time and when video evidence is required, it will offer forensic value as the camera will provide clear images that cannot be contested.
Interestingly, he says that in South Africa, with its high crime rates, cameras are frequently pressure-tested and security managers often end up with useless footage that has no evidentiary value: This brings into question the entire premise that the camera system installed is valuable to the organisation and is actually enhancing security.
The average number of cameras deployed per site has steadily been increasing and this trend reinforces the need for system integrators to design solutions more carefully.
Here are some tips for selecting a camera and designing a solution:
1. Choose your video cameras and positions carefully. Have a specific surveillance goal in mind for each device.
2. Avoid general-overview cameras unless they are needed for an operational or process-control reason (e.g. to view an assembly or production line in a factory).
3. Make sure that the camera resolution is high enough so that the footage it generates has evidentiary value. i.e. the number of pixels-on-target should agree with the standards for detection and identification, that the camera and VMS manufactures all publish.
4. Select fewer high-resolution cameras that record at a decent frame-rate (no less than 15fps) for a shorter time frame, as opposed to many lower-resolution cameras recording at low frame-rate for a long period of time.
South Africans are searching in the dark, according to the latest Google Search trends.
With more 1 million search queries generated in the space of 76 hours, load-shedding was by far the top trending search on Google South Africa this week.
Valentine’s Day came a distant second.
After news emerged last Sunday of the impending stage 3 load shedding, South Africans had generated more than 1-million load-shedding search queries by the time Tuesday came around:
- “Loadshedding schedule” – generated more than 100k searches on Sunday
- “Load shedding schedule” – generated more than 100k searches on Sunday
- “Eskom load shedding” – generated more than 100k searches on Sunday
- “Load shedding Cape Town” – generated more than 50k searches on Sunday
- “Load shedding schedule” – generated more than 400k on Monday
- “Load shedding Johannesburg” – generated more than 20k searches on Monday
- “Load shedding schedule” – generated more than 200k search queries on Tuesday
Leading up to Valentine’s Day, South Africans generated close to 300k search queries related to the romantic festival, including searches for quotes and gift ideas:
- “Valentines Day” generated more than 100k search queries on Thursday
- “Happy Valentines Day Images” and “Valentines Day Images” generated more than 10k search queries each on Thursday, with “Happy Valentines Day 2019” generating more than 20k search queries on Wednesday
- “Valentines Day Specials 2019” generated more than 5k search queries on Thursday
- “Love quotes” generated more than 5k search queries on Thursday
- “Valentines Day quotes” generated more than 100k search queries and “Valentine messages” generated more than 50 000 search queries on Wednesday
Search trends information is gleaned from data collated by Google based on what South Africans have been searching for and asking Google. Google processes more than 40 000 search queries every second. This translates to more than a billion searches per day and 1.2 trillion searches per year worldwide. Live Google search trends data is available at https://www.google.co.za/trends/hottrends#pn=p40
Thanks to the growing popularity of video-on-demand services, there’s a new opportunity to help kickstart the careers of local filmmakers.
Numerous Hollywood blockbusters (District 9, Tomb Raider 2018, and The Avengers: Age of Ultron to name a few) have featured substantial shoots in Johannesburg and Cape Town. While providing great opportunities for SA’s production talent, aspiring writers and directors don’t get the same benefit.
So where can local creatives showcase their work? Broadcast TV isn’t a natural home for unknown short films, and while self-publishing platforms are readily available hosting options, it’s tough to get noticed and get traffic when competing with videos from across the planet.
But with the emergence of video-on-demand services into the mainstream, there’s now a solution. The African film school AFDA has teamed up with the streaming service Showmax to give local talent a much larger platform than ever before. From 18 February, eighteen of the best recent short films made by AFDA students from their Johannesburg, Cape Town, Durban and Port Elizabeth campuses will be live on Showmax. Drama, documentary, fantasy, and animation are all represented, in pieces running from under eight minutes to almost half-an-hour long. The full list of movies is included below.
Teresa Passchier, CEO of AFDA, said: “AFDA, Africa’s number-one school for the Creative Economy, is proud to kickstart this exciting and meaningful journey with Showmax and AFDA students, ensuring emerging young African filmmakers’ voices are heard and given a platform. It’s ground-breaking to share young, local, culturally relevant content on the same platform as Hollywood blockbusters. I am certain that this unique initiative will serve to boost and develop the African film industry and the careers of many young South African and African students alike.”
Included in the short films coming to Showmax are the award winners Junior and O-Puncha. Junior, directed by Bert Dijkstra, picked up the Audience Award in the Made in South Africa Competition at the shnit Worldwide Shortfilmfestival Awards 2017. O-Puncha, directed by Adam Hansen, won two awards at the 5th annual Eldorado Film Festival: Best Student Made Short, and Best Editing – Alexander La Cock.
Another celebrated film is Sicela Amanzi directed by Mlu Godola, which talks to the subject of water shortage. The film’s heroine Zoleka is a mild-mannered young woman forced to go to extreme lengths when a small community’s only source of water unexpectedly collapses. The power of films like this is they shine a light on critical topical issues in new ways.
Speaking about working with the film school, Candice Fangueiro, Head of Content for Showmax, said: “There’s
AFDA is an Academy Award-winning institution, founded in 1994, and the first and only African film school to win an Oscar – for the Best Foreign Student film in 2006, the postgraduate film Elalini, directed by Tristan Holmes.
The full list of AFDA short films coming to Showmax is as follows:
|Lullaby from the Crypt||Keenan Lott & Raven Davids||Animation|
|Ko Ga Cherenyane||Sibonokuhle Myataza||Documentary|
|Mallemeule||Jaco Van Bosch||Drama|
|Canal Street||Brodie Muirhead||Drama|
|On the Fence||Warrick Bews||Drama|
|The Righteous Few||Lindo Langa||Drama|
|Hlogoma Peak||Luke Ahrens||Drama|
|Frozen Flame||Cameron Heathman||Animation|
|Wolf||Brett van Dort||Fantasy|
|The Walk Home||Sisanda Dyantyi||Drama|
|Doreen||Luvuyo Equiano Nyawose||Drama|
|Sicela Amanzi||Mlu Godola||Drama|