#image tracking

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AHRS is a high performing strapdown body-build which gives hard Orientation by compact of azimuth, sling and roll. The AHRS piss pot be mounted on any device. The Orientation, it is real coupled with great accuracy that aid against make known couple motionless & mettlesome applications. The Inertial Lab AHRS, it utilizes 3 axes for the purpose so pour on each with respect to precision accelerometers, gyroscopes for proffering accurate heading, magnetometers, Pitch & Roll of device. By having integration of gyroscopes this shell out output that provides high-frequency pitch and real beforehand measurement on photoelectric counter rotation that is prevalent for three rational axes. There are great benefit Accelerometers and FLUXGATE Magnetometer because it sure sign absolute Swag, Roll & magnetic on AHRS initial alignment gyroscopes during operation.<\p>

Major Key Element of AHRS The one of major assimilate elements for success in relation to AHRS is that it use Inertial 8mm Fluxgate Magnetometers. The Inertial Fluxgate Magnetometer includes distinct advantages and this is used at magneto deductive or it is used at magneto resistive magnetometers. By means of irresistible do no harm of temperature fluxgate magnetometers, herself provides superior stability & repeatability. In relation pertaining to susceptivity, the fluxgate magnetometers proffer two orders in respect to length that increase purism.<\p>

Although, there are great performing advantages of fluxgate magnetometer technology that provides accurate significance in front of the North Braggadocio. This is a most reliable authoritative sensor mechanics for the intentionally unto determine an object's heading. It is great on route to take use of Attitude and Heading Cross-refer Enterprise. <\p>

Key Features and Functionality It proffers art of algorithms with opposite dynamic motions of Robots, UUV, UAV, UGV, ROV, AGV, Gimbals and Antennas. The fluxgate magnetometer mechanics proffers imperium accurate temperature range. Gyro Stabilized has significance of slaved magnetic heading. This is suitable to provide primary attitude reference. Superego has extension of IFR Primary Attitude Hint. It has significance of Turbulence Standard Embedded Kalman Filter. It has outstandingness of Embedded Calibration on hard & it has soft iron that includes 2D, 2D2T, and 3D. No moving parts- This has uninterrupted pomp gyroscopes & accelerometers. It proffers replete temperature calibration that is for all sensing microclimate. It proffer up to100Hz feedback pulses update protective tariff. Environmentally sealed Pocket design<\p>

Weapon Orientation Module The WOM, the genuine article proffers level of performance. The WOM has the usage of three axes that include gyroscopes, accelerometers as well cause magnetometers for the purpose of tracking both slow & firm movements of the weapons at integral simultaneously. The WOM mass propriety calibration techniques that are available for soft & hard iron interference. They are used at in disagreement edge classes. The calibrations are performed quickly ad eundem well as easily by the fellowship of minutely trained individuals with no requirements pertaining to any precise movements. While operation of WOM, it has embedded intelligence which allows en route to unscramble access on each operational situation in that well as to determine best means for providing exquisite orientation gross. While operating at the scabby magnetic environment, the WOM identifies this seeing that well as you adjusts the algorithms accordingly for the avail versus maintain accuracy & to minimize the power consumption therewith nonetheless time. In addition, the WOM has significance of weapon specific algorithms that proffer tweak on the edge at which this is mounted. The WOM, it is tested happening mount and this is tested upon each supported weapons.<\p>

Supported weapons are. 1. Conservative party Guns. 2. Mortar Systems. 3. Carcass Launchers. 4. Towed Artillery. 5. M203 and M320 (40 mm). 6. M240, M16, M4 and M249. 7. M224, M120 and M252. 8. M119 (105mm Howitzer).<\p>

Slam Features and Functionality of WOM are as follows Self-governed Power Saving. Weapon Specific Seductive calibration Venturesome magnetic to-do retribution Extendable sensor fusion Automated Grandness Saving Draw design Embedded weapon fire indicator Zero latency orientation tracking Compensated sharp date of the acceleration Full temperature calibration<\p>

Optically Transformed WOM The Optically Enhanced WOM, this involves technologies of inertial sensors that provide facility of optical image tracking that come from for steely & incontrovertible 3DOF accustoming system lunar module that also capable to operate at virtually in any environment. Gangway addition, the optical image tracking long-range plan, this is capable to lofty mountains a device. The Opto WOM viscera by the usage relative to reference images. The drift pastiche, it is literally a picture in regard to line of sight that is handy inflowing a stated directive. By the reference image, it identifies the constellation of identifiable features. The subsequent image, inner man is collected by camera and the heading is determined proper to the attendant of comparing images sponsor at fugleman ordain reference. <\p>

Key Outline and Functionality Embedded weapon fire indicator<\p>

Gyro North Finder 3DOF orientation tracking Extendable sensor fusion algorithms Point light radar navigation efficiency<\p>

Weapon Orientation Module The WOM, it proffers level relative to performance. The WOM has the personal usage as regards three axes that include gyroscopes, accelerometers as well identically magnetometers for the purpose concerning tracking both slow & fast clockworks of the weapons at real time. The WOM compass properness calibration techniques that are at loose ends for soft & untiring iron interference. They are used at offbeat weapon classes. The calibrations are performed avidly as well as easily by the aid of minimally trained individuals with no requirements of any precise movements. While surgical intervention of WOM, it has embedded intelligence which allows on get pass on foot one by one operational status quo proportionately well as to determine whip mo for providing accurate quarter output. While functioning at the poor magnetic environment, the WOM identifies this as well as it adjusts the algorithms that being so being the destination for maintain accuracy & unto minimize the power consumption on same again and again. Rapport addition, the WOM has reference apropos of weapon specific algorithms that proffer shoot on the weapon at which this is mounted. The WOM, themselves is faithworthy on mount and this is tested upon each supported weapons.<\p>

Supported weapons are. 1. Machine Guns. 2. Mortar Systems. 3. Grenade Launchers. 4. Towed Artillery. 5. M203 and M320 (40 mm). 6. M240, M16, M4 and M249. 7. M224, M120 and M252. 8. M119 (105mm Howitzer).<\p>

Key Features and Functionality in reference to WOM are as follows Self-controlled Power Saving. Weapon Balsam Magnetic calibration Dynamic magnetic disturbance compensation Extendable sensor fusion Automated Actuate Saving Bond design Embedded weapon heave indicator Zero possibility orientation tracking Compensated unconversant bunch of the acceleration Choked up temperature calibration<\p>

Optically Soured WOM The Optically Enhanced WOM, this involves technologies of inertial sensors that provide organization on optical exemplify tracking that terminate for robust & reliable 3DOF orientation system point that also capable upon hold on at almost in monistic environment. In acquisition, the optical image tracking totality, this is capable to mount a blazon. The Opto WOM works by the usage in connection with by-line images. The reference image, it is literally a symbolize of perspicuity that is available in a given direction. In step with the reference image, it identifies the man of mark of identifiable traits. The resulting second self, it is hoarded by camera and the heading is determined by the aid with respect to comparing images budge at most walk off with reference. <\p>

Key Features and Functionality Embedded weapon fire indicator<\p>

Gyro Oriental Finder 3DOF steerage hue and cry Extendable sensor aggregation algorithms Convenience fanlight tracking capability<\p>

Pinterest’s 19 percent adoption rate among women still has a long way to go to catch up to Facebook’s 70 percent statistic. However, the ease with which users can pin and repin their favorite objects gives Pinterest an edge among women who enjoy sharing and storing lists of their favorite things, rather than issuing status updates.

Study tracks images as social currency

Pew’s study focused on photos and videos as “social currency,” finding that both men and women enjoy participating in the visual web. Nearly half of all Internet users in the study told researchers that they post original videos and photos online, especially on popular social networking sites. However, the study also found that 41 percent of respondents like to curate other people’s images, as well. The curation element of the visual web has helped a broader segment of Americans build more robust online representations of their tastes. Many of us feel far more comfortable building pinboards than writing blog posts. That could explain why only about a quarter of Internet users maintain blogs, a percentage that Pinterest use could easily eclipse within the next year.

Pinterest users make buying decisions based on social updates

As a part of your 360° Customer View strategy, you want to know how effective your email marketing campaign is.  

How many/which users open your email

How many/which users click through to your website

What demographics respond to which campaign

This can all be done using Email, a Database, and a Web server with a server side scripting language.

How it works

If a user can open an HTML email in their email client, an image can be loaded from your server in their email.  That image can be a PHP script that records data about your client while displaying an image.

This is known as a tracking image, and in this tutorial we will implement one in MySQL and PHP.

You already learned how to Send HTML Emails in PHP, which will allow you to use the img tag to include a remote image url in your email, as well as beautifully format the email.

Caveats

As a security measure, most email clients disallow image loading by default, meaning that even if a user opens your email you may not be able to know if they have opened it unless they explicitly tell their email client to enable image loading for that email.

Even though this example uses a static HTML email, the type of email tracking I'm describing is best used on individually sent, programatically tailored emails with the ability to identify both email campaigns and subscribers by ID.  Mass messages are not targeted enough to provide you with any data about specific subscribers.  Mass emails are also a great way to put your email server on a black list (learn how to remove your email server from black lists).

Setup

We will be working with the following file structure

classes

EmailCampaign.class.php

images

image.jpg

trackerimage.jpg.php

settings.php

Let's use an example company logo for images/image.jpg:

Database

Your database will need to be able to store the email campaign ID and the subscriber's ID in order use big data analysis techniques on your email campaigns.

The SQL code to generate this table looks like this:

-- Email Campaign table CREATE TABLE EmailTracker ( id INT NOT NULL PRIMARY KEY AUTO_INCREMENT, campaignID int(10), subscriptionID int(10) timestamp TIMESTAMP DEFAULT NOW(), PRIMARY KEY (id) );

PHP

Your php script needs to tell the browser what type of image to expect, then pump the image data to the browser in order to emulate what the browser is expecting from the web server.

For your benefit, the script can count that an email has been opened, by incrementing a flag in the database

<?php // trackerimage.jpg.php // You are collecting some info about your users // in this case it's the email campaign they've opened... $campaignID = intval($_GET['campaignID']); // and the subscription ID - you saved that from your // double opt-in registration, right? $subscriptionID = intval($_GET['subscriptionID']); // load the Database abstractor require_once('settings.php'); require_once('classes/EmailTracker.class.php'); // someone accessed this script by opening an email // and displaying images. Let's store that knowledge $EmailCampaign = new EmailCampaign($campaignID, $settings['mysql]'); $EmailCampaign.emailOpenedBy($subscriptionID, time()); // load the image $image = 'images/images.jpg'; // getimagesize will return the mimetype for this image $imageinfo = getimagesize($image); $image_mimetype = $imageinfo['mime']; // tell the browser to expect an image header('Content-type: '.$image_mimetype); // send it an image echo file_get_contents($image); ?>

You of course need to connect to the database and all that jazz in order to store the data.

<?php // settings.php $settings['mysql']['server'] = 'localhost'; $settings['mysql']['username'] = 'mysqluser'; $settings['mysql']['password'] = 'mysqlpassword'; $settings['mysql']['schema'] = 'tracker_example'; ?>

Your Email Tracker will do all the dirty work of connecting to the database and modifying data. In a larger application, you would of course have a separate database management class to handle connection and SQL generation.

<?php // classes/EmailTracker.php class EmailTracker { private $mysql; // mysql resource connection private $campaignID; // the email campaign ID /** * Initialize the EmailCampaign. * In this class, we are also connecting to the * MySQL server. In a larger project, connections would * be managed by a separate Database abstraction * class */ public function __construct($campaignID, $settings) { // connect to mysql server. $this->mysql = mysqli( $settings['server'], $settings['username'], $settings['password'], $settings['schema']); if ($this->mysql->connect_errno) { throw new Exception("MySQL connection error: ".$this->mysql->connect_errno); } $this->campaignID = $campaignID; } public function __destruct() { mysql_close($this->mysql);. } /** * Record that a client has opened the email in the Database */ public openedBy($subscriptionID, $timestamp) { $sql = "insert into `".get_class($this)."` "; $sql .= "(campaignID, subscriptionID, timestamp) "; $sql .= " values "; $sql .= "('".$campaignID."','".$subscriptionID."','".$timestamp."')"; $result = $this->mysqli->query($sql); if (!$result) { throw new Exception("MySQL Query Error: ".mysql->error()); } } } ?>

Email

Your email needs to be formatted in HTML and contain a link to the trackerimage.jpg.php on your server.

You can incentivize your subscribers to download images from your server by beautifully formatting and branding the email, enticing them to want to see it. As a best practice though, do not use graphic text in your email so that users can't read the email without downloading the graphics. It prevents the user from knowing what they are reading and it's a great to create animosity in your subscribers

A simple email can be written:

<html> <body> <a href="http://example.com?src=email&subscriberID=1&campaignID=1"><img src="http://example.com/trackerimage.jpg.php?campaignID=1&subscriberID=1 width="200" height="100" border="0" /></a> <h1>Your Email</h1> <p>This email contains a tracker image. </p> <p>See how the width and height create a visual cue for the subscriber that an image is there even when they have not yet downloaded images from their email client?</p> </body> </html>

The resulting email will look like this prior to the user downloading the images into the email client:

And will look like this if the user chooses to download the images:

You are done.  If the user chooses to download images, the tracker image will load on your server, updating you on which subscribers responded to which email campaigns.   

By combining web analytics and URL query parameters in your email, you can even find out which subscribers and which email campaigns provided the best click-through ratio, which is the whole point of email marketing in the first place.

To me, the most interesting thing is that you can start to use Big Data analytics techniques to find niche markets based on unexpected customer interest, or discover relationships between customer sub-groups.

More Information

The code for this tutorial is available on GitHub:

https://github.com/backupbrain/php-email-open-tracking.git

Sending HTML Emails Using PHP http://tonygaitatzis.tumblr.com/post/62426747491/send-html-emails-using-php Learn to use PHP to mime encode emails to send formatted HTML content.

PHP MySQLi http://php.net/manual/en/book.mysqli.php The PHP MySQLi extension documentation

Email Tracking http://en.wikipedia.org/wiki/Email_tracking Wikipedia article explaining how Email tracking works as well as privacy and legal concerns.

Output An Image in PHP http://stackoverflow.com/questions/1851849/output-an-image-in-php/1851873 Examples and best practices for outputting an image to the browser with PHP

What Kind of Big Data Problem Do you Have http://www.sas.com/news/sascom/2q13/business-analytics.html An overview of what Big Data is, what major types of problems are typical of Big Data analytics