Tendências de Videovigilância em 2018
Apresentam-se neste video as principais estatisticas e perguntas chave do relatónio anual de 2018.
(ifsecglobal.com, 3 de Maio de 2018)
A importância da atenção selectiva
Este video enquadra-se no tema em estudo visto que ao fazer um processamento visual de algo, o ser humano acaba por não considerar todos os factores em jogo. Normalmente o homem foca-se num objectivo principal e acabam por lhe escapar alguns pormenores que podem ser bastante importantes. Um operador de uma central de monitoramento de sistemas de videovigilância tem de estar apto a conseguir detectar situações como esta.
Backend vs Frontend
Este video enquadra-se no tema em estudo na medida em que é essencial ter a câmara apontada para o local onde a ação decorre. Caso tal não aconteça, a videovigilância torna-se irrelevante e isto pode ser crucial numa situação de, por exemplo, um assalto.
Livestreaming de câmaras de videovigilância privadas desprotegidas
A cadeia de televisão CBC, canadiana, publicou recentemente (28 de Setembro de 2018) uma reportagem onde abordam a problemática das câmaras de videovigilância com algum detalhe.
Várias pessoas residentes no Canadá compraram câmaras IP para protegerem os seus lares porém não fizeram algo que actualmente é crucial no que toca à segurança de qualquer sistema: mudar a password original do equipamento para uma qualquer outra.
Nesta reportagem, a cadeia de televisão contratou ethical hackers para controlar os gadgets inteligentes de uma casa.
Para saber mais informações sobre esta reportagem, consulte: https://www.cbc.ca/news/technology/smart-home-hack-marketplace-1.4837963.
O caso de Londres
"How many CCTV cameras in London?
It is estimated that there are 500,000 CCTV cameras dotted around London.
You may be asking yourself why so many?
But due to criminal activity and CCTV Legal Requirements, many businesses invest in CCTV to improve their business security.
This is also the same for domestic use, inside and outside the home to deter crime, especially in a capital city where the footfall is huge and crime rates tend to be higher.
CCTV Cameras in London
Going by the amount of CCTV cameras recognised and used by the council and government buildings, studies still attempt to find out the amount of CCTVs used amongst private businesses and individual households. Although the calculations can be troublesome, a figure of 500,000 provides a good estimate of surveillance cameras in London.
What about the London Underground CCTV?
To ensure safety and reduce crime in an extremely busy underground system like London’s, there are an extensive number of CCTV cameras in operation to fight crime. With 15,516 cameras in action in the Underground alone, we’re interested in how they’re dispersed between the stations.
(...)
As you can imagine, this results in an incredible amount of footage, but believe it or not, it is still held for two weeks.
(...)
Tourists can be unfamiliar to the area’s geography or traditional London customs, making them easy targets for petty criminals such as pickpockets or scam artists. That being said, this doesn’t mean to say that other busy locations such as Wembley Park lack in CCTV activity; 171 units is still an impressive amount there to monitor sport supporters and music fans.
London CCTV Facts
With countless cameras in operation around London, what would be interesting to know is: is this the same worldwide?
Dados estatisticos sobre o CCTV em Londres (caughtoncamera.net)
- 25 Million CCTV Cameras: Globally it is estimated that there are approximately 25 million CCTV cameras, and Britain holds a high percentage of these with a recorded number of around 4 million. The United Kingdom has more CCTV activity than any other European country, per capita. This is also reflected in the facts; surprisingly, the Wandsworth borough in London in particular has more CCTV cameras than Boston, Dublin, Johannesburg and San Francisco put together.
- Caught on Camera 300 Times: It is also a well known fact that the average person living in London will be recorded on camera 300 times in one day; an individual doesn’t need to go far without being caught on camera.
- Over £300 million: Between the years 2007 and 2010, over £300m was spent on the installation and operation of CCTV units alone. These have all been put into place to reduce crime and antisocial behaviour and should crime occur, these events will be recorded and used lawfully to seek justice.
London CCTV Statistics
The area of London is divided into 33 boroughs and the number of cameras in each of these areas vary, due to factors such as crime levels, transport links and footfall.
London CCTV statistics from the BBC show that the two areas with the most amount of cameras per 1,000 people are Wandsworth and Camden.
As a result, more people may live in this area, due to its useful transport links, so the population of people in this area will always be high.
The number of CCTV cameras does not appear to be directly proportional to the size of the borough.
How Many People in London?
To find out how many people there are in London, it’s important to review the latest census, which was made in 2011.
Based on this official count the number of people in London was 8 million. Before this figure, in 2001 the census accounted for 7 million people, a rise of 1m people in a decade. However, the population now in 2017 is estimated to be 10.5 million."
(caughtoncamera.net, 2017)
Para saber mais informações sobre o sistema de CCTV em Londres, consulte: https://www.cityoflondon.police.uk/advice-and-support/Pages/Public-Space-Surveillance-Camera-System-.aspx.
E as restantes cidades do Reino Unido?
"UK has 1% of world's population but 20% of its CCTV cameras."
(dailymail.co.uk, 27 de Março de 2007)
"A single London borough – Hackney – has more CCTV cameras than the UK’s five most watched cities combined.
- Bristol is the most watched city in the UK (excl. London) with 658 cameras – Birmingham comes in at second with 422 cameras despite having well over double the population of Bristol
- Woking, Swindon and Wigan are the UK towns with the most CCTV cameras – with 691 cameras, Woking has more cameras than the most watched city, Bristol
- Lambeth, Kensington and Chelsea are the least watched London Boroughs – Lambeth has just 42 cameras despite having a whopping population of 327,900 – that’s 50,000 more people than in Hackney which was 2,246 CCTV cameras
- Manchester is the 12th most watched city despite having one of the highest crime rates – with 74 offences per 1,000 people, Manchester is the 12th most watched city in the UK. There are more CCTV cameras in Southampton, Plymouth and Exeter, all of which have significantly lower crime rates
- There are more CCTV cameras in Oxford Circus than the whole of Manchester – the tube stations has 309 cameras whereas Manchester has just 263
- Hackney has 94 people per one camera, whereas Birmingham has a shocking 2,665 people per camera – That’s 28x more people each CCTV camera in Birmingham has to watch out for!
- Woking is the most watched UK hotspot (excl. London) with 691 cameras – this town has more CCTV cameras than the likes of Birmingham, Liverpool, Manchester and Sheffield"
(ifsecglobal.com, 3 de Maio de 2018)
Livestreaming / Videovigilância de Praias de Portugal
Em Portugal existem vários serviços que disponibilizam streams legais e gratuitos, obtidos a partir de câmaras IP, onde é possivel visualizar em tempo real várias prais do país. Apesar de ser um serviço muito especifico, conseguem-se encontrar algumas semelhanças com um sistema de videovigilância.
Como exemplo, pode utilizar-se o serviço MEO BEACHCAM. Para saber mais informações sobre o serviço, consulte: https://beachcam.meo.pt/livecams.
(beachcam.meo.pt/livecams)
Livestreaming / Videovigilância de uma Árvore de Natal
No leque de opções que existem de videovigilância, acabam por haver sempre algumas implementações de ideias que à partida são completamente "fora da caixa". Neste caso em concreto, esta página web reproduz um video de uma árvore de Natal que é possivel controlar à distância nos comandos presentes na mesma.
Para saber mais informações sobre esta página web, consulte: https://www.controlmytree.com.
(controlmytree.com)
Animação sobre Vigilância Portugal
(cronicasdorochedo.blogspot.com)
