Marker-Based AR Mobile Applications For Image Recognition

1. Marker-Based AR Mobile Applications For Image Recognition Augmented Reality or mixed reality superimposes 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 Augmented Reality development. It uses the mobile phone’s GPS to track the player’s 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 phone’s camera. During the initial years of AR, its usage was limited to games only. But, nowadays, a business hire augmented reality developer to develop AR-based mobile apps to venture into domains like medicine, education, retail, tourism, etc. Image recognition is a key area in which Augmented Reality is being used in the current scenario in mobile apps. An Overview of Image Recognition 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

2. 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 their mobile phone. For this functionality to work properly, Augmented Reality triggers are identified in advance. Augmented Reality triggers are the image targets that are already fed into the system. Seeing the image through the smartphone’s camera, which is specified as an AR trigger; initiates its functioning. These triggers if used, in the context of location, are often called markers. How Much Does It Cost to Develop a Mobile App Marker-Based Augmented Reality Augmented Reality 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

3. 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. Augmented Reality in Ecommerce Business: Trends and Benefits The markers can be simple images comprising basic shapes like black squares with a white background or complex images like a tattoo having multiple layers of basic shapes. The camera in the phone is used to detect markers as the location of virtual objects. The animation or video associated can then be played on the location of the marker. Businesses can hire AR developers online to develop AR apps requiring animation and video support along with markers. Marker-Less Augmented Reality An AR app that does not needs a trigger to overlay three-dimensional content onto the environment is called a markerless AR app. It does not require any prior knowledge of the environment. This kind of app displays the 3D content in any location wherever the user holds it stationary. The difference from a user’s 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.