Posts Tagged ‘ high quality video image’



Outdoor CCTV Cameras

Written By:
Thursday, May 17th, 2012

Street CCTV camerasOne of the best methods for being able to maintain your home’s security and safety involve the use of an outdoor security camera. It may be enough to deter a crime from happening in your home just by having a security system in place. There is not thief that wants to be caught on video tape during the middle of the crime, so they will choose to avoid any place that is going to be able to record their actions. They will tend to flock toward a home that is not protected and they can easily get in and out of the home without having to worry about being detected. Outdoor wireless security cameras will provide you with the most inexpensive way to be able to protect your home against any potential crime or vandalism from occurring.

Who Needs a Security Camera?

Homeowners

A lot of people are under the impression that they do not need a camera because there home is not big enough to attract the likes of a thief. However, any residence that looks like it is not protected with a security system is a prime target for a thief. The economy is at an all time low, so crime has been on the rise in a lot of the areas around the U.S. and it can affect anyone with any income level. As much as 74 percent of Americans are going to become the victim of a crime at some point in time or another. A lot of homeowners are going to benefit from the added protection that a home security system is going to bring to their home. The camera will operate around the clock, so you will always have the protection that you are looking for.

Business Property Owners

Anyone who purchases investment properties as a way to increase income from their rental will find that an outdoor security system will be extremely beneficial to them and the security of their property. If the tenant feels protected and safe, they are going to be open to paying a higher rental amount to help cover the extra cost associated with the security camera. Surveillance systems are also going to protect your business and home from any potential vandalism or graffiti. If the property is located within a small industrial zone, it may also be at an increased risk for a potential target to steal any valuable inventory or electronic equipment within the building.

Types of Security Cameras

The traditional type of security cameras are the most popular option on the market today, as well as one of the most affordable for consumers. It doesn’t matter if you are looking for a fixed or a wired outdoor camera because there is something for everyone to choose from.

Bullet Style

This particular type of camera is characterized by its sleek appearance. They are mounted to an outdoor surface and easily visible to the intruder. Price ranges can vary from $50 to $100 for one of the cameras that has a night vision capability. If you are looking for a camera with day and night vision, those can range from $150 to $350, depending on the resolution and picture quality that you desire, as well as how long of a range you are looking for.

Dome Style

This type of camera is perfect for indoor or outdoor use since it is pretty compact in size. Its small profile makes it easy to conceal and a great choice for any application that will require a hidden security camera. The dome style of this camera will range from very inexpensive up to the top of the line brands that are more capable of higher resolution and range of motion. There are generally anti-vandalism features installed within these particular cameras. The smallest dome cameras will typically start out at around $100 and go up to more than $800, depending on the amount of scan lines.

Wireless Security Cameras

Wireless security cameras are the latest in technology on the market for surveillance systems. The wireless CCTV camera can be mounted to any outdoor location as long as it receives a radio signal. The image is then transmitted to a digital video recorder, computer or radio receiver for later viewing capabilities. One of the advantages to this particular type of camera is that you will have the convenience of moving the camera to another cctv security cameralocation with ease. The majority of the units are going to have the signal capabilities to be able to transmit the images to any computer within an almost unlimited amount of distance. There are a few of the security cameras that are going to interfere with some of the other devices, such as cordless phones or wireless Internet routers. The prices for a wireless camera can range from $100 to $800 depending on the size, scanning range and the monitoring capabilities that the camera has to offer.

Features to Look For in a Security Camera

Video Quality and Resolution

The higher end security cameras are going to provide you with a much better picture quality. If the camera needs to be able to focus in on specific details, such as facial features, then you may want to consider a higher resolution camera. If you purchase a lower end model of camera, you may experience some graininess. There are some of the outdoor home security cameras that will be able to compensate for the lighting interference. The middle range cameras will include reproduction features in color, while other styles are only going to produce a black and white image. The cameras that are going to produce an adequate amount of imaging are the ones in the 480 – 520 TVL range.

Range of Distance

If you are using multiple security cameras, you may not need ones that have an extended range of distance viewing. The single models that have the progressive scan features are going to add on to the cost of the camera, but they are going to allow for a larger viewing range. There are several security camera companies that can offer you a dynamic range of motion and zoom capabilities that can easily be adjusted.

Transmitter Frequency or Power Consumption

The lower the level of frequency that you are using, the higher the amount of penetration you are going to get in the transmission quality. For example, the 5.8 GHz model is going to provide you with a longer distance of viewing, but it may become obstructed from any exterior objects or walls. The newer models have been designed to reduce the amount of power that is consumed.

Infrared Technology or Day Vision

cctv security camera Some of the models that are capable of capturing scenes at night are also going to feature infrared capabilities. There are a few styles that can offer you around the clock protection that is suitable for both day and nighttime surveillance.

Motion Sensor Features

One of the most cost effective ways to be able to protect and monitor an area is to have the camera only record when there is motion that has been detected. There are a few of the video cameras that come equipped with a motion sensor device that are similar to that of light fixtures.

Exterior Features

If you are installing an outdoor surveillance camera, it needs to be able to hold up against anything that the weather may throw at it. You may also want to make sure there are anti-vandalism features installed on the camera, so that way you are protected from having to worry about replacing the unit.

Benefits of Installing a Security Camera

There are a wide variety of benefits that are going to come from the installation of a security camera.

– One of the biggest benefits in a security system is that you will have the peace of mind in knowing that your home or business is covered by around the clock monitoring.
– When you create a deterrent for any potential thieves, you are preventing the potential for any loss of property and potential unnecessary expenses.
– The majority of homeowners and rental insurance companies are going to offer you a discount when you choose to install an active security system within your home or property, along with a standard monitoring device.
– There are plenty of gang related incidents and forms of vandalism that can occur, but with your security system in place you will prevent the potential for any crime or bodily harm from taking place.
– If an incident does happen, you will be able to rest assured that justice will be brought to the criminals and prevent any future incidents from taking place.

According to the most recent crime statistics, there is a burglary that takes place on average every 15 seconds within the United States. This trend has continued on the rise due to the downfall of the economy. The total amount of money that you are going to spend on the installation and purchase of a security system will end up saving you hundreds in long run.

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16 Channel Digital Video Recorder

Written By:
Thursday, November 17th, 2011

Like any other Digital Video Reorder (DVR), a 16 channel digital video recorder uses a computer hard drive to compress and store video images using various compression techniques. (Incidentally, “16 channel” means the DVR can work with up to 16 cameras simultaneously.)

 

The compression techniques include JPEG, MPEG, Wavelet and a host of proprietary methods. Images can be stored at a rate of just a few frames per second (fps) to as many as 400fps depending on the software features offered by the manufacturer. This is the latest in CCTV DVR Video Surveillance technology, eliminating the use of tape recorders.

 

Security Camera King’s DVRs enable easy viewing of stored video and images. Data can be saved on a recordable disk (CD-R, DVD-R) or USB Flash Media Drives to be given to law enforcement, insurance companies, etc.. We carry the most popular high-quality and affordable 16 channel digital video recorders in our online store.

 

Our 16 Channel Ultimate Series DVR is a powerful standalone DVR with all the features you can imagine, packed in a compact, easy to use device. Its H.264 compression promises high quality recordings with minimum storage space. 16 audio channels allow you to record whatever is going on in the recorded areas. Its stable Linux operating system will keep working without any faults or down time. Also supported are USB 2.0 ports for optical mice and video backup as well as firmware upgrades.

 

Longer record times - As mentioned earlier, H.264 provides superb compression, in most cases more than doubling record times over previously popular compression methods. Here is a quick chart comparing H.264 and other compression technologies, using a 160GB hard drive, recording video at 30 frames per second, at a resolution setting of 720 x 480.

 

H.264                                     Records 77 Hours

MPEG4                                  Records 44 Hours

JPEG2000                             Records 13 hours

 

As you can see, the advantages of H.264 are impressive! The ability to record longer periods of time on the same sized hard drive will save you money, and greatly increase the amount of video evidence you can archive.

 

Quality and speed does not suffer – Previous compression methods have always allowed you to record excellent picture quality at real-time frame rates – but you were eating up valuable hard drive space. Similar to MPEG4, H.264 uses predictive technology to drastically reduce the amount of redundant video recorded. In simple terms, instead of constantly recording say a room with no motion, H.264 will use previously recorded images. However, if someone walks into the room, H.264 will record that person and continue to use the previously recorded background. H.264 will sample up to 32 frames of video to ensure complete accuracy and quality – whereas other compression methods would use only 1 or 2 frames as a reference.

 

Improved remote monitoring – Saving hard drive space is not the only benefit of our 16 channel digital video recorder. The ability to bring together high quality video with low memory sizes allows for seamless presentations of video when transmitted. Coupled with low frame rate recordings, previous compressions made watching video from remote video security DVR units a trying experience – especially when activities in question happened fast. Video would be jumpy, and audio (if used) wasn’t likely to be synchronized with the video. Watching real-time H.264 is a completely different experience, and the reason so many broadcast companies around the globe have rapidly adopted it.

 

A word of caution – Although H.264 compression is without question a giant leap in video technology for all industries, just having that feature in a DVR does not mean that it’s a good DVR. To make all the magic happen, it takes more processing horsepower. So be sure to use a manufacturer with a proven track record, who stands behind their products, and one who will be there for you should you need a hand.

 

And that brings us back once again to Security Camera King’s Ultimate and Elite Series 16 channel digital video recorders.  For example, the Ultimate series DVR can record real-time video and audio at either CIF (360 x 240) or 4CIF (704 x 480) resolution on every channel simultaneously.

 

Our 16 channel digital video recorder is also IP (Internet Protocol) ready.  Basically all you have to do is plug in an Ethernet cable from your broadband Internet source and you can monitor any of the channels from anywhere i the world there is broadband Internet access (that includes 3G and 4G phones).

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640 x 480 Infrared Camera

Written By:
Monday, October 11th, 2010

What exactly is a 640 x 480 infrared camera? This can be a complicated answer for many reasons. In the following article we will attempt to address some of the characteristics that can make this seemingly simple question so complicated. Specifically, we will briefly discuss infrared technology and the reference to display resolution and how they relate to a 640 x 480 infrared camera.

First lets discuss the meaning of “infrared” when we talk about a 640 x 480 infrared camera. The term “infrared” refers to the wavelength of electromagnetic radiation. The wavelength of infrared radiation generally ranges between 0.7 and 300 micrometers abbreviated as “µm.” The exact range and categories defined may vary slightly depending on the scale that is used to describe the radiation.

For our purposes, it is sufficient enough to know that infrared radiation is a longer wavelength than visible light, therefore the human eye cannot see it. Further, there may be several categories of infrared radiation based on wavelength but we will only consider two; “near infrared” radiation which is invisible to the human eye but is the closest in wavelength to radiation that is visible to the human eye) and “long-wavelength” also called “far infrared,” which for our discussion is the thermal imaging region which is naturally emitted by objects and requires no external or artificial illumination.

So, on this basis there are essentially two types of 640 x 480 infrared cameras. The first type, and the one most commonly used in digital video security camera systems, is the near infrared camera. This camera contains one of two electronic sensor chips, either a Charged Coupled Device (CCD) or a Complimentary Metal Oxide Semiconductor (CMOS). These sensors are able to convert the light energy into electrical energy that can be measured, thereby creating a digital image. Fortuitously, these sensors inherently detect near infrared radiation as well.

The near infrared 640 x 480 camera uses external infrared radiation (or infrared light) to illuminate the area in its field of view. These cameras use InfraRed Light Emitting Diodes or IR LEDS to illuminate the target area in order to create an image. The IR LEDs are normally configured in an array that surrounds the camera lens so that they are focused in the same direction. However, some cameras may have IR LEDs clustered off to the side of the lens and there are even separate “illuminators” that contain nothing but IR LEDs and can be mounted and aimed separately from the camera.

These cameras normally produce a color image in visible light conditions and when the visible light is not bright enough to produce a high quality video image, they switch to infrared, producing a monochromatic or black and white video image.

The far infrared 640 x 480 infrared camera does not require additional external infrared illumination. This camera uses an infrared “Focal Plane Array” or FPA sensor and is capable of creating a digital video image based solely on the thermal emissions or “heat signatures” of objects. These cameras are often called “Forward Looking InfraRed” or FLIR cameras. These cameras are also often made in a “hand held” version. Older models of these cameras had to be cooled somehow to prevent the users’ and their own thermal emissions from interfering with the image.

Far infrared 640 x 480 infrared cameras are often used not only for covert surveillance and security, but by inspectors and engineers to detect a variety of heat signatures. These cameras can be used to detect areas of heat “leakage” from a building or “hot spots” on mechanical engines and other devices.

As for the reference of “640 x 480″ in a 640 x 480 infrared camera, this refers to the image resolution in pixels that the camera is capable of displaying. Far infrared cameras are more commonly referred to by their resolution in pixels, i.e. 640 x 480 infrared camera. However, digital video security cameras may also use the same description.

This can be confusing because older, analog security video cameras more commonly referred to their resolution in terms of TVL or Television Lines. Since the security camera industry today uses primarily digital video cameras, they may refer to the resolution in terms of TVL or pixels.

Perhaps the easiest way to tell the difference between the two is the price. Near infrared digital image security video cameras can be purchased for as low as less than one hundered while far infrared FLIR cameras range from one to several thousand dollars.


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