January 16th, 2012 | 
Author: A video encoder (also known as an ip video server) digitizes analog video signals and sends digital images directly over an IP network, essentially turning an analog video system into a network video system and enabling users to view live images using a Web browser or video management software on any local or remote computer on a network.
The Hybrid systems usually consist of a PC with a PCI or PCIe DVR card installed to provide inputs for the number of traditional security cameras as well as a license for added IP security cameras. With this type of system, all of the cameras can be viewed on the PC screen and recorded together onto the hard drive. These analog surveillance and IP cameras can then also be viewed remotely together over the internet from a PC, Laptop, BlackBerry, Android PDA phone, iPhone, iPad and many other cell phones as well.
With hybrid capable security camera DVR systems, home and business owners can start out with analog security cameras alone, and simply add license later for added IP cameras or additional cards for more traditional security cameras. The ability to expand the system slowly and use both newer and older technology together make hybrid systems a great choice to help meet budgetary requirements and still deliver desired features and picture quality. When building your next security camera system, consider finding a system that will allow both lower budget and higher definition IP cameras together.
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Surveillance images of a man police want to speak to in relation to an assault at a High Wycombe pub have been released.
The attack happened in June and police have released the surveillance footage today.
A 23-year-old man was punched in the face in the toilets at Yates’s bar in Frogmoor at around 11.40pm on Wednesday June 1 after being approached by a man who briefly spoke to him.
Officers investigating the incident want to speak to the man in the surveillance images in connection with the assault.
TV Lines are the standard measure of an analog TV’s Resolution. Rather than represent discrete locations on a grid, as Pixels in a digital Frame do, TV Lines indicate the maximum number of identifiable changes that can be produced along a single (horizontal) Scanline of an analog TV. Much like film, where Visual Resolution is measured in Line Pairs, for analog TVs, the number of black and white (vertical) lines that can be seen on the screen at the same time is used to determine TV Lines. However, unlike film, the number of individual lines is used instead of counting each pair of black and white lines together. If you wanted to compare the Visual Resolution of film and a TV you’d need to divide the number of TV Lines in half to find the number of Line Pairs.
Although TV Lines are a measure of Visual Resolution, they’re not directly equivalent to the Resolution of a digitally encoded video frame. The number of TV Lines displayed on a TV may vary from source to source, and so can the number of TV Lines generated on different TVs from a single source. The Resolution of an encoded frame, on the other hand, remains constant.
Rather than considering the entire 4:3 picture, the traditional measurement of TV Lines for an analog TV is in Lines per Picture Height. This is the number of TV Lines in the largest square (1:1 AR) area of a TV screen, and is equal to 75% of the total number of TV Lines for the entire screen. The red square in the image below is the area considered for Lines per Picture Height.
Just as every TV has a maximum number of TV lines it can produce; any given analog video signal has a maximum number of TV Lines it can represent. This number is determined by the Frequency of the signal. Since each pair of TV Lines (one black and one white) is equivalent to a single waveform in an analog video signal, if you know the signal’s frequency and the Active Area of a Scanline for the TV system used (PAL or NTSC) you can calculate the number of TV Lines it can “contain”.
For example, PAL B/G has a 5MHz signal, meaning 5 Million waveforms per second. The Active Area of a PAL picture is 52s, resulting in 260 complete waveforms (5,000,000 x .000052) or 520 TV Lines ((5,000,000 x .000052) x 2).
When capturing analog video you may have a choice of resolutions. According to the Nyquist-Shannon Sampling Theorem you need to sample at slightly more than twice the analog waveform’s frequency. For our PAL signal the frequency is 5MHz, so we should sample at more than 10MHz. Since each pixel is a sample that means a resolution wider than 520 pixels. 720×480 (NTSC), 720×576 (PAL), and 640×480 (square pixels) are all common Capture resolutions this is no problem.
HD DVRs record the content from an HD cable or satellite receiver and stores the information in an internal hard drive. However, you cannot copy the contents onto a computer. If you want, then you need to set up an HD DVR cards inside your computer.
You can either buy an internal or external card from most computer or electronic stores. Internal card more likely runs more smoothly because an external card relies on a USB cable to stream all of the HD content to the computer.
To install the card, power down the system, remove all the cables and open up the computer tower. Insert the card into one of the available PCI card slots on the mother board, then close up the tower and connect all the cables back to the computer.
The driver tells the computer how to run the hardware, while the software allows you to use the hardware. Connect an HDMI cable to the HD cable/satellite receiver’s HDMI port. Insert the other end of the HDMI cable into the HDMI port on the video tuner card. Launch the TV viewing software installed on your computer and power on the receiver box. Adjust the programming with the receiver’s remote control.
Select the program you want to record and press the “Record” button in the software. The exact location of this varies, however it is typically in bright red font and often is just a red circle in the program.
More security is coming for an area of Bishopville that many see as a trouble spot.
The city’s approved installing a dozen security cameras for following armed robberies, a murder and daily complaints of loitering.
The area is called the Backlot. It’s a secluded strip just one block over from Bishopville’s Main Street.
For Bishopville Police Chief John Ewing, the Backlot keeps his officers busy.
It’s secluded and police say it’s mostly used as a walkway for people headed to the corner liquor store. It’s also a place where crimes have gone unpunished.
Nesbit led the fight to get council to approve spending $12,000 dollars on security cameras in the area.
After Nesbit collected 18 signatures from downtown business owners, council approved the plan.
Edward Thomas spends lots of time outside the liquor store playing the lottery and, as he puts it, “conversation” with the people in the Backlot.
Thomas says the cameras can’t hurt.
Bishopville residents hope the cameras put an end to everything going on at that location.
The police department will monitor the cameras and plan to use them to prosecute any crime they can with them. It could take another three months before the cameras go up.
An amazing story of survival has been caught on CCTV tape. And it would be the most incredible CCTV video ever seen.
It was taken last Friday when Columbia police said Eric Whitaker plowed his pick-up into the Columbia Market on Hampshire Pike. They said he was trying to rundown his ex-girlfriend. The CCTV video shows he misses the woman, but the car actually collides with the store owner and clerk Surendra Patel. Patel is crushed under debris, but then somehow emerges and walks away.
Police said Whitaker then ran from the store and stole an SUV. He collided head on with a bread truck. The entire even is caught on the store’s high tech CCTV system and will now be used in the criminal case against Whitaker.
Whitaker is at Vanderbilt Medical Center in critical condition. Patel suffered minor bumps and bruises, but is home recovering.
Nowadays many traffic management centers are using HD IP camera for incident management and adaptive signal control.
In incident management systems, HD IP cameras allow operators to see the true cause of the traffic backup. With this visual information, operators can provide feedback to the public via real-time traffic GPS systems, changeable message signs, television, or on the Internet and they can pass along this information to other government agencies for use in incident response.
Advanced use of these traffic surveillance systems includes the use of camera presets. These pre-defined “presets” can allow the application software to direct the camera to automatically look at a specific section of roadway, when a certain action triggers this “preset”. For example, when traffic reaches below a predefined speed threshold, traffic sensors can alert the application software to redirect the camera to view an alternate angle. Based on what the operators can see, they have the ability to make changes to traffic signals, etc.
IP video cameras are primarily used for adaptive signal control systems in which traffic management center operators can monitor certain corridors and coordinate traffic signals in order to keep traffic flowing along critical traffic corridors. They can make certain lights turn green or red based on real-time traffic conditions. This type of functionality is especially valuable during high-traffic events such a sporting event or natural disaster.
Almost three years after the attack on Cama and Albless Hospital on the night of November 26, the city’s only women-and-child hospital recently installed 41 security cameras in every nook and corner of the hospital. Two security men were gunned down on 26/11 when Ajmal Kasab and his aide wreaked havoc inside the hospital that then housed over 200 women and newborns.
But many still feel the security measures may not be adequate . Nurses feel that the two or three security guards posted inside the campus at any given point are inadequate to handle a mob of angry relatives , leave alone terrorists. All that the security guards have in the name of rapid communication is two walkietalkies . Further, a staffer pointed out, the footage of the security cameras can be monitored only from the superintendent’s office which shuts after 6pm.
Hidden cameras are used to spy on people and know exactly what they are up to. These cameras are usually used by law enforcement agencies and major shopping complexes to avoid theft and burglary; however, nowadays you can see any normal inquisitive and suspicious individual using the same in his home or office. Using a hidden camera is not a big issue especially when you need to know what your child’s nanny is up to, or who is leaking your secret information, what is going on behind your back or simple home security.
The earlier models in hidden cameras could only take black and white pictures and the quality was also not so good. Now, you have multiple choices and the hidden cameras with such amazing and complex technology that it can not only bought under multiple options but is quite affordable too. These cameras have amazing resolution and superb memory space with easy-to-use facility that makes it reasonably attractive.
A hidden camera is a complete necessity to protect your home and family from strangers who might want to destroy the beautiful world of your dreams. If you are wondering about the cost it tags along, then the good news is that there are many cheap hidden cameras with great picture quality and extremely user-friendly techniques. Also, the market today showcases numerous models in these home CCTV cameras, so you do not have to worry that you might run out of options. Hidden cameras for cars are also available to make sure that your car does not go through under any theft.
A wifi IP camera is used differently than a wireless camera and has different capabilities. The letters IP represent internet protocol. Representing the signal is transmitted over the internet with a certain protocol. An IP optical device transmits to a router or is connected to the internet by an Ethernet cable connection. This creates the ability to capture a specific area and view the area at a distant place. Differently than a wireless camera that is used within the home to create a system that is portable in nature and viewed on various monitors including the television.
The transmission frequency of a Wi-Fi IP camera is 802.11GHZ. The signal is transmitted to a router or connected to the internet by an Ethernet cable. The IP connection is often referred to as a WIFI connection. A higher signal transmission speed creates a high quality video. A wireless camera transmits to a receiver within a specified distance usually 300 feet and transmits its signal commonly at 2.4GHZ or 5.8GHZ. Many home appliances such as microwaves and land line telephones transmit at these lower frequencies creating occasional interference.