Surveillance Equipment, CCTV & Security News

Video Compression - H.264 and Surveillance industry

H.264 or MPEG-4 Part 10 (Advanced Video Coding) is an industry standard for video compression, this is the process of converting digital video into a format that can achieve very high data compression. So far Motion JPEG and MPEG-4 part 2 are the compression standards that are widely used in surveillance industry. With the use of H.264 video compression codec, surveillance industry could see a drastic change in the way CCTV systems are used. With the use of H.264 video compression codec surveillance equipment could see itself taking a major leap in terms of usage of storage space, better image quality and transmission of video.

Video compression codec H.264 involves encoding and decoding processes. The video encoder performs the process of encoding and transforming the video to H.264 bit stream and in turn the decoder decodes the bit stream and delivers the original content. If you are interested in complete process of how H.264 works please visit the resources listed below. The whole process is very accurate and reduces storage space by more than 50% without compromising on the image quality when compared to Motion JPEG and MPEG-4 Part 2. It also delivers same quality if not better images per bit rate when compared to MotionJPEG/MPEG-4 Part 2.

By using the video encoders which support H.264, an analog system can be integrated into more efficient and powerful IP based video surveillance system. This enables the system to deliver better image quality with higher resolutions, frame rates and multiple streaming capabilities, decreased bandwidth and storage requirements. Video analytical applications can be used with the converted video increasing effective usage and management of large-scale video systems such as big shopping malls etc. The use of H.264 modeled systems will have a greater advantage in surveillance industry in the near future and will encourage the use of Megapixel cameras whose biggest challenges are requirement of large storage space and huge usage of network bandwidth.

Want to know more about H.264 visit:
wikipedia.org

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June 21st 2008
Tags: CCTV Surveillance

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Covert Cameras / Spy Cameras

Check out these body worn hidden cameras and wireless hidden cameras, you would hardly believe if you were told there was a camera inside? The images are courtesy of DPL-Surveillance-equipment.com, Dpl brings a variety of security product, they are online shop open 24/7/365. Body-Worn Hidden Cameras DPL-Surveillance-Equipment.Com: Rent, Buy, or Lease. Wireless ...
June 20th 2008
Tags: CCTV Surveillance

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Megapixel Security Cameras

Analog Cameras, IP Cameras and now Megapixel cameras, if you wonder what megapixel security cameras are, to begin with it is well worth to have a look into what megapixels are. The resolution of an image is measured in horizontal and vertical lines consisting of dots/pixels, i.e for example an image ...

Video Servers or Video Encoders.

A video server or a video encoder digitalizes analog signals and distributes digital images directly over an IP-based network, changing analog cameras into digital network cameras. A video server/encoder has analog video channels, image digitizer, image compressor and web server with network interface. This is ideal for migrating existing analog ...
May 20th 2008
Tags: Articles, Digital Video

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Digital Image Sizes

Digital Image Sizes Format PAL NTSC QCIF 176 × 144 176 × 120 CIF 352 × 288 352 × 240 2CIF 704 × 288 704 × 240 4CIF 704 × 576 704 × 480 1/2D1 720 × 288 720 × 240 D1 720 × 576 720 × 480 VGA 640 x 480 SVGA 800 x 600 XVGA 1024 x 768 SXGA 1280 x 1024 UXGA 1600 x 1200 CIF = Common Intermediate Format (Q=Quarter) The NTSC equivalent of CIF is SIF (Standard ...
May 20th 2008
Tags: Articles, IP Surveillance

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Network Cameras - An Overview

A network camera can be described as a camera and computer combined in one intelligent unit. It captures and transmits live images directly over an IP network (eg: LAN,intranet/internet). Network cameras provide an easy way to capture and distribute high quality video over any kind of IP network ...

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