How Facial Recognition Works

When you look at your face you can distinguish various different things. These are the things that facial recognition softwares use to recognize your face. There are about 80 nodal points on a human face. Some of them are:-
1. Width of nose
2. Distance between eyes
3. Cheekbones
4. Jaw line
5. Depth of eye sockets

These nodal points are measured and coded in computer understandable form. Facial Recognition is a small part of BIOMETRICS. The idea behind biometrics is to distinguish us from others using various of our unique properties. Other than Facial recognition, Fingerprint scan, Retina scan, Voice identification are also part of Biometrics.

Facial recognition system goes under 5 simple steps:

1. Detection - When the system is attached to a video surveillance system, the facial recognition software searches video camera for faces. If there is face in the view, software detects it within a fraction of a second. A multi-scale algorithm is used to search for faces in low resolution.The system switches to a high-resolution search only after a head-like shape is detected.

2. Alignment- Once a face is detected, the system determines the head's postion, size and pose. A face needs to be turned at least 35 degrees toward the camera for the system to register it.

3. Normalization - The image of the head is scaled and rotated so that it can be registered and mapped into an appropriate size and pose. Normalization is performed regardless of the head's location and distance from the camers.

4. Representation - The system translates facial data into unique code. This process allows for easier comparison of the newly acquired facial data.

5. Matching - The newly acquired facial data is compared to the stored data.

Its Uses

Nokia Phone Secret Codes

*#0000# - To view software version.

*#06# - for checking the IMEI (International Mobile Equipment Identity).

*#7780# - reset to factory settings.

*#2820# - Bluetooth device address.

*#67705646# - This will clear the LCD display (operator logo).

*#746025625# - Sim clock allowed status.

*#62209526# - Display the MAC address of the WLAN adapter. This is available only

in the newer devices that support WLAN

#pw+1234567890+1# - Shows if sim have restrictions.

#pw+1234567890+2# - To check the Locking Status of the Network. To get ‘p’, ‘w’, ‘+’,

use ‘*’ button.

#pw+1234567890+3# - To check the Locking status of the Country. To get ‘p’, ‘w’, ‘+’,

use ‘*’ button.

#pw+1234567890+4# - To check the Locking status of the SIM card. To get ‘p’, ‘w’,

‘+’, use ‘*’ button.

*#92702689# - takes you to a secret menu where you may find some of the

information below:
1. Displays Serial Number.
2. Displays the Month and Year of Manufacture
3. Displays (if there) the date where the phone was
purchased (MMYY)
4. Displays the date of the last repair - if found (0000)
5. Shows life timer of phone (time passes since last start)

Prevent Email Password Hacking

1. Don't use the links in an email, chat to go to any web page if you suspect the message and think that it is not authenticate and you don't know the sender's name.

2. Don't ever fill the forms in email messages that ask for financial transaction. Perform financial transaction via secure website.

3. Always ensure that you're using a secure website while submitting credit card number or other sensitive information.

4. Look at the indicator near the bottom of your screen to see if it is a safe site or not. Double click it to view the security certificate. If you get any warning then don't continue.

5. Install the Web browser tool to help you protect you from fraudulent websites. Like EarthLink ScamBlocker which can be downloaded at http://www.earthlink.net/earthlinktoolbar

6. Regularly log into your online accounts to check each account.

7. If you get 'phishing' or 'spoofed' emails then,
i) forward the email to reportphishing@antiphishing.org
ii) forward the email to the Federal Trade Commission at spam@uce.gov
iii) forward the email to the 'abuse' email address at the company that is being spoofed (e.g. "spoof@ebay.com")
iv) when forwarding spoofed messages, always include the entire original email with its original header information intact.
v) notify The Internet Crime Complaint Center of the FBI by filing a complaint on their website: www.ic3.gov/

Free Website (with country code domain .np )

You can create a free website with extension .com.np, .org.np, .biz.np where .np is country code for Nepal. Now, here's the process to do it.
   You have to choose a website name for example prowikicomputer. So, your website will be prowikicomputer.com.np. This facility is brought to you by Merchantile Communications. For this you have to fill the form in the merchantile's website. You can get free Name server from 000webhost.com and freehostia.com. If your website is private you require photocopy of Citizenship, if it is organizational you require Proof of your organizational legal recognition.

Now, Filling form from mercantile's website,

1. Goto http://register.mos.com.np/ (Mercantile's website) and check your website name if its available or not.
2. To fill the field "Primary Name Server" and "Secondary Name Server" you need help of 000webhost.com or freehostia.com. You must sign up or register in 000webhost.com and fill the form. Now, Click on Create my account. Then you will get the information in your email address you filled in 000webhost.com. In the given link in your email address you will see another page. Now, click on the page's Refresh Status. 
3. Now click on Goto CPanel and click View Account Details.
4. There you will get "Primary Name Server" and "Secondary Name Server". 
5. Lets take example you got :- ns01.000webhost.com , 206.43.152.32 and ns02.000webhost.com, 64.120.10.10
In accordance with the example,

Interesting Webcam

There are lot of other things that you can do with Webcam other than Video Chatting. Here are other 5 interesting things that you can do with your webcam. Here they are,

1. Home Security -> Do you want home security with your webcam? If yes, you can do it easily. First of all, go to http://www.yawcam.com and download the 'yawcam' software (For Windows OS users). For Mac and Windows users too you can go to www.vitamindinc.com and download 'Vitamin D' software. You cannot always be infront of your computer to watch the activities so you can just use these software to record the video and allow it to click photo in the interval of time too.

2. Bar Code Reader -> We can read the various information written in the bar code. For that we need a software which is called 'bcWebCam' which can be downloaded from www.bcwebcam.de. Run the software and just bring the bar code infront of the webcam. The software detects the bar code and provides the information to you. For MAC users, you can download 'Evobarcode' software from www.evological.com. This is for 15 days trial version.
and also,

Wireless Security

With the development of modern technology, Internet has become the major organ of our life. With the increase in Internet facility, wireless technology has also flourished. But there are many vulnerabilities. So, better be prepared to secure your wireless than being hacked. So here are 10 ways for Wireless security.

1. Change username and password of router -> After installing router, change the username and password of your router. To find your ip address goto Ms-Dos/Command Prompt and type ipconfig/all. Then you will find the Ip address and then type http://Ipaddress in the web browser for example http://192.168.1.1. Then the router page opens and type the username and password. Inside Administrator change the username and password. If you don't change your username and password then your username and password might be cracked through the sites like routerpasswords.com, cirt.net.

2. Turn on the Computer Firewall -> Go to control panel and goto Security System and turn on the Firewall. This prevents unauthorized access to any of your system.

3. Turn on WEP/WPA encryption key -> The is encryption for wireless network of  every router. They are of two types WEP (Wireless encryption protocol) and WPA (Wireless Protected Access). WPA is the best choice for you to do because WEP can be cracked easily by hackers. While keeping Security key keep it using alphanumeric. Like @wireless90

4. Make use of Physical Address -> Every computer has a different Physical Address. This can be know by typing ipconfig/all just like in step 1. Keep that address in Router's MAC Address Filtering. After that, which computer's physical address is kept there will only get to use the internet.

5. Hide the Network name -> We can secure internet service by hiding the Network name (SSID) that you are using. By going to Wireless tab, uncheck the SSID.

then,

Password Security

Enhance your password security to the maximum level so that u can never be hacked... Here are few password cracking methods and security measures..

1. Social Engineering -> To protect yourself from social engineering you must learn to question the possible attacker. If you get a phone call from someone, and you feel that he/she may be fraud, then just ask him/her the legitimate questions. Some professional social engineers study the company before attacking, so they might know all the answers. That’s why, if you still have some doubts, you should ask the head of whatever department the attacker is from to find out if he is legit.

2.Shoulder Surfing ->  When you type in your password make sure there is no one behind you attempting to look at your password. If someone is watching you typing password just kick him in the face. Just joking. Be aware of them. Don't keep notes as a hint for your password.


3. Guessing -> To prevent yourself from this attack, never use a password like your birth date, your phone no., your girlfriend's name, your pet's name, your spouse’s name, or anything that someone may be able to guess. Try to keep it long with Uppercase, lowercase, number and symbols. Like :- Don@8guessm!passworD

4. Dictionary Attacks -> Dictionary attacks are very simple to prevent. Don’t use a password that is in the dictionary. Don't ever try to use password from dictionary in other form like H4ck3r which is "Hacker". This is detectable by Dictionary attack. Use a long phrase which is easily undetectable.

Other attacks and Security measures,