TrustStamp
- 09/08/2016 -- 01/02/2018
- 0.00 Eur.
- Finished
- This is a research and development project funded by the Imprensa Nacional Casa da Moeda (INCM)
- Nuno Gonçalves
- Leandro Cruz
- Bruno Patrão
Presentation of a coding system using a halftone pattern (with black and white pixels) capable to be integrated into markers that encode information that can be retrieved a posteriori and used in the creation of augmented reality applications. These markers can be easily detected in a photo and the encoded information is the basis for parameterizing various types of augmented reality applications.
Presentation of a steganographic technique to hide a textual information into an image. It is inspired by the use of dithering to create halftone images. It begins from a base image and creates the coded image by associating each base image pixel to a set of two-colors pixels (halftone) forming an appropriate pattern. The coded image is a machine readable information, with good aesthetic, secure and containing data redundancy and compression.
Graphic Code is a new Machine Readable Coding (MRC) method. It creates coded images by organizing available primitive graphic units arranged according to some predefined patterns. Some of these patterns are previously associated with symbols used to compose the messages and to define a dictionary.
The main advantage of using this approach as an Augmented Reality marker is the possibility of creating generic applications that can read and decode these Graphic Code markers, which might contain 3D models and complex scenes encoded in it. Additionally, the resulting marker has strong aesthetic characteristics associated to it once it is generated from any chosen base image.
Presenting applications of the Graphic Code, exploiting its large-scale information coding capabilities applied to Augmented Reality.
Graphic Code has two major advantages over classical MRCs: aesthetics and larger coding capacity. It opens new possibilities for several purposes such as identification, tracking (using a specific border), and transferring of content to the application. This paper focuses on presenting how graphic code can be used for industry applications, emphasizing its uses on Augmented Reality (AR).