| Title |
Self-organizing patterns in information hiding applications / |
| Translation of Title |
Savaime besiformuojantys raštai informacijos slėpimo uždaviniuose. |
| Authors |
Vaidelys, Martynas |
| Full Text |
|
| Pages |
110 |
| Keywords [eng] |
self-organizing patterns ; information hiding ; pattern complexity ; dynamic visual cryptography |
| Abstract [eng] |
The complex self-organizing patterns emerging from the biological, chemical or physical processes have been successfully adapted for hiding and communicating secret visual information. Communication scheme between two communicating parties based on the calculation of difference between two patterns was presented. To form a self-organizing pattern mathematical models describing real-world processes are used. The pattern formation scheme based on breaking spiral waves allows to apply perturbations in the middle of the pattern formation process. This helps to increase the security of the scheme and to control the quality of the decoded image. DVC scheme based on the optical time-averaging moiré technique has been introduced to enable communication using only one image. An image encoding scheme in deformable one-dimensional moiré gratings oscillating according to a predefined Eigen-mode describing a physical process is implemented for the construction of two-dimensional digital dichotomous secret images. Here, the Eigen-shape of the structure serves as the decoding key for a visual communication scheme. Various pattern formation mechanisms and parameters result in different characteristic images which require the evaluation of complexity and feasibility for information hiding applications. It is important to consider the feasibility of an image used in secure communication. 2-LRS can be used to analyze the complexity of self-organizing patterns. |
| Dissertation Institution |
Kauno technologijos universitetas. |
| Type |
Doctoral thesis |
| Language |
English |
| Publication date |
2018 |
