Understanding Picture Quality

In the last post on 7th April 2011 we had covered the different technologies available to you and a broad idea of the kind of output you can get from them. At Dee Cee Security Systems Pvt. Ltd. we are committed to suggest you the right technology and the right solution which exceeds your expectations and is within your budget.

Here we will give you a idea of the main aspect of CCTV Cameras which every buyer is looking for but gets confused when he sees technical words like CIF, 4CIF, D1,etc.

Before we go into understanding the above, you need to understand one word which "PIXEL". What is a Pixel?, while you hear megapixel, HDTV and other terminologies nowadays, very few people understand that they are based on amount of pixels they support.

In simple terms, PIXEL stands for Smallest Picture Element. See the below picture:

Image Source: Wikipedia.com

What you see above is a Monitor on the left. On the right side you see a image which is zoomed in version of the image. The selected area is shown as a square on the left side.The element has been red colored and named as Pixel. That is a Pixel. If we name that Pixel as P0 and the next one as P1,P2,P3...... and so..on... then we would get the image resolution. A image resolution bascially refelcts the total number of pixels the image.

Do understand the number of pixels is directly proportional to quality of picture. So higher the number of pixels better the picture clarity.

Following table gives you a idea of the number of pixels expected from a Analog Camera.

Table of Analog Video Resolutions (in pixels)
Format	NTSC-Based (in pixels)	PAL-Based (in pixels)
QCIF	176 × 120	176 × 144
CIF	352 × 240	352 × 288
2CIF	704 x 240	704 x 288
4CIF	704 × 480	704 × 576
D1	720 × 480	720 × 576

To understand the above, i will give you example, QCIF which gives you a resolution of 176 X 144 in PAL( used in Asian Countries) means it will give you a resolution of  176 Pixels X 144 Pixels horizontally and vertically. Thus as we go higher the image size increases.

The following is table of Digital Video Resolution ( or IP Camera Resolution):

Size/ Format	Pixels
QQVGA	160x120
QVGA	320x240
VGA	640x480
HDTV	1280x720
1M	1280x960
1M	1280x1024
2M	1600x1200
HDTV	1920x1080
3M	2048x1536

So you can see the number can go a lot higher in Digital Video Resolution compared to Analog Video Resolution thus offering you Best picture Quality.

You can get in touch with me at rohit at omnipolis.in for any clarifications.

Integrated Emergency Response System

Emergency does not knock at your door before coming and every second counts at that moment of crisis. There are basically 3 major emergencies which one can think of i.e Police , Fire and Medical. At the time of crisis, each of the emergency has to be communicated to the concerned response agency for help to be available to you.A proper integration of all response systems facilitates help and places resources where they need to be.

People require help or assistance of Government agencies on a regular basis to tackle different emergencies. Be it a fire at your premises , where you need a Fire brigade to reach you or Be it a Police emergency where somebody is robbing you house. During such situations, time is essence and help should be communicated to these agencies in the fastest manner for them to dispatch help to you. In a country like India, where these govt. agencies receive thousands of calls on a daily basis, it is even more important for them to be equipped with proper devices to help the citizens. An Integrated Emergency response system for all these needs where the information can be communicated with simply a touch of button can be the solution. Thus, governments need to invest in citywide emergency response systems that can aid the distribution of information and better support agencies in their task of serving and protecting. The main aim is to simplify the whole process and make it simpler for the citizens to communicate when they are in an emergency situation.

But the cost of setting up an Integrated Response system does not come cheap and governments needs to invest in millions depending on the level of deployment. A relatively smaller cost also has to be borne by the citizens in terms of having a Gadget in their house or cars which complies with the standard of the Integrated response system for the emergency communication.To ensure an efficient and responsive system for emergency services, agencies have to set very stringent reliability and redundancy requirements for their contractors. In the event of system failure, operations can fall back automatically to the hot-standby equipment to minimize any downtime and/or degradation of emergency services.

As the number of technology driven systems increase within a city, we can move towards a secure and safer place to live which can be termed as a 'Smart City'.

@Rahul Jain - Omnipolis

Securing One's Home!!!

Safety and Security of one's house is the prime concern in today's world. With an increase in the number of burglaries and other Property crimes, the need for hi tech security gadgets is on rise. There are few precautions which one needs to take in securing one's premises. The Need for an apartment and individual house differs and should be addressed accordingly.


Few things which one can keep in mind is :

• Having a secured perimeter with proper fencing specially for Individual houses
• Having a Security guard for apartments to screen people and enabling restricted entry.
• Provision for Video surveillance where ever necessary to keep a recorded evidence against crime
• Having a Burglar alarm system to alert the Central control room and neighbours in case of intrusion in you home.

 Before going for a Residential Security System , please consider few questions listed below :

  

• What makes your home susceptible to break-in or theft?
• What do you consider your biggest security threat?
• Do you feel that your neighborhood contributes to your overall security?
• Have you ever had problems with theft or break-ins?

With a Combination of different technologies available in the market and little bit of cheaper alternatives and precautions, you can create a secure home.

 

@Rahul Jain - Omnipolis

 

Need for Security

Security is the main concern for both Business owners and Home owners. Increase in the Crime statistics on a yearly basis surely shows us how security has become the prime concern of all the people. If you havent noticed, most of the commercial institutions now have a Dedicated Security Manager with his own set of team to take care of the security of premises. The Incident at Taj, Mumbai clearly exposed the loopholes and showed the importance of security.But since then the complete landscape has changed. The focus on the Security has increased by leaps and bounds and business owners are now taking their premises security seriously. Prevention is always better than cure as someone said. It fits perfectly for the business owners who need to realize the need of electronic security gadgets available in the market. As a business owner one need not spend a fortune to secure his premises. Better equipped premises have a better chance against the act of crimes. Every industry deals with his own set of problems when it comes to security and have diferent concerns. But all can be addressed in a proper manner, with a focused approach towards the protection of the premises. As an individual too, one need to look at different security requirements from a security guard to a hitech home security system which can help in averting lot many issues and an action by proper authority in case of emergency.

For those Business owners and Residential users who still do not take the help of available electronic security gadgets, i wish Good Luck!!!


@Rahul Jain - Omnipolis