Marker-Based Augmented Reality Mobile Applications For Image Recognition - PowerPoint PPT Presentation

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Marker-Based Augmented Reality Mobile Applications For Image Recognition

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During the initial years of AR, its usage was limited to games only. But, nowadays, a business hire augmented reality app developer to develop AR-based mobile apps to venture into domains like medical, education, retail, tourism, etc. Businesses can hire augmented reality app developer online to develop AR apps requiring animation and video support along with markers. – PowerPoint PPT presentation

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Title: Marker-Based Augmented Reality Mobile Applications For Image Recognition


1
  • Marker-Based Augmented Reality Mobile
    Applications For Image Recognition

2
  • Augmented Reality or mixed reality superimposes
    the digital data on the real-world environment.
    The Pokémon GO game brought AR into the
    limelight. It is a renowned mobile game that uses
    the concept of AR. It uses the mobile phones GPS
    to track the players location. As the player
    moves, his virtual avatar is superimposed on the
    surroundings along with the virtual content
    created in the game, e.g., gyms, pokemon, etc.
    The user then tries to catch the pokemon that is
    displayed in the current surroundings created by
    the mobile phones camera. During the initial
    years of AR, its usage was limited to games only.
    But, nowadays, a business hire augmented reality
    app developer to develop AR-based mobile apps to
    venture into domains like medical, education,
    retail, tourism, etc. Image recognition is a key
    area in which AR is being used in the current
    scenario in mobile apps.

3
An Overview of Image Recognition
4
  • Recognition uses the identification of real-world
    objects, items, faces, and shapes to provide
    additional information to the app user in a
    real-time environment. It enables the AR app to
    identify particular images on which the digital
    content is superimposed. A smartphone with an
    appropriate app can use recognition to read
    barcodes and provide information like reviews,
    prices, nutritional information, etc. It can also
    be used to identify human faces and then open
    their social media profiles on the mobile phone.
    For this functionality to work properly, AR
    triggers are identified in advance. AR triggers
    are the image targets that are already fed into
    the system. Seeing the image through the smart
    phones camera, which is specified as an AR
    trigger it initiates its functioning. These
    triggers if used, in the context of location, are
    often called markers.

5
Marker-Based Augmented Reality
6
  • AR markers are visual signals that trigger the
    display of virtual information stored digitally
    in the app. Markers are small images or objects
    which the app has been trained to identify as a
    trigger to run its visual show. A simple example
    of this is to display an animation to explain a
    concept given in a book right onto the book page
    itself. The page should have a marker, e.g., an
    image with lots of visual points. As soon as the
    liver camera view captures the marker, it starts
    running the animation associated with that
    marker. The marker can be any image with quite a
    few corners and edges for its unique
    identification, e.g., logo, barcode, poster, etc.
    In marker-based AR, the app needs to know the
    exact location where the user is looking. Most of
    the markers are black and white to avoid mixing
    with a real-world object. Colored markers can
    also be used as long as their contrast can be
    identified by the camera.

7
  • The markers can be simple images comprising of
    basic shapes like black squares with a white
    background or a complex image like a tattoo
    having multiple layers of basic shapes. The
    camera in the phone is used to detect markers as
    the location for virtual objects. The animation
    or video associated can then be played on the
    location of the marker. Businesses can hire
    augmented reality app developer online to develop
    AR apps requiring animation and video support
    along with markers.

8
Marker-Less Augmented Reality
9
  • An AR app that does not needs a trigger to
    overlay three-dimensional content onto the
    environment is called a marker-less AR app. It
    does not require any prior knowledge of the
    environment. This kind of app displays the 3D
    content on any location wherever the user holds
    it stationary. The difference from a users
    perspective is only that the surface on which the
    content is displayed can be anywhere. In these
    apps, there is no need for image recognition
    systems. It permits the use of the physical
    environment instead of markers. It uses the GPS
    features of smartphones to interact with the
    virtual resources of the app.

10
Image Recognition Using Marker-Based AR
11
  • The Marker-based image recognition system
    comprises of modules like camera, image
    capturing, image processing, rendering, marker
    tracking, and display. The camera module is used
    to capture input from the live feed of the
    smartphone camera. This live feed is passed onto
    the image capturing module. The image capturing
    module analyses this feed frame-by-frame to
    generate binary images. These binary images are
    forwarded to the image processing module, which
    detects the marker. The position of the marker is
    required to know the location where the virtual
    object is to be placed. The marker position is
    provided as input to the marker tracking module.
    The marker tracking module calculates the
    position of the camera relative to the marker
    position, i.e., the pose.

12
  • The pose indicates the 3D orientation and 3D
    location of the object. The pose is passed onto
    the rendering module as an input. The rendering
    module is used to combine the image with virtual
    components. The display module then superimposes
    the augmented image of the surrounding
    environment.

13
Concluding Remarks
14
  • The marker-based AR application for image
    recognition helps to combine the virtual world
    with the physical world. The main advantage of
    this technology is that there is no need for
    expensive head-mounted display devices. From the
    consumers point of view, one does not need to
    buy a product to see whether it fits in their
    environment. The 3D images can be directly
    fetched from the website of the vendor to augment
    with the consumers home layout. To conclude, AR
    is the future with applications in almost all
    domains.

15
Contact Us
  • Name- Rahim Makhani
  • Website- https//www.nevinainfotech.com
  • E-mail Address- rahim_at_nevinainfotech.com
  • Contact Person- Rahim Makhani
  • Mobile Number- 91 7572970470

16
  • THANKS
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