FIELD: information technology.
SUBSTANCE: surface of a document is illuminated with at least one inclined radiation beam so that any raised material on the surface of the document reflects radiation. A surface with raised material is identified by at least one radiation detector. The image is then processed in order to determine the presence of raised material on the surface of the document. The illumination step causes reflection and/or a shadow formed by at least one edge of the raised material. The processing step identifies the location of the material using said reflection and/or shadow of at least one edge.
EFFECT: high accuracy of identifying areas of raised material.
55 cl, 15 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| INTELLECTUAL HEAD FOR SMARTPHONE FOR DETERMINATION OF CLEANLINESS, MOISTURE AND PHOTO-AGE OF SKIN | 2016 |
|
RU2657377C2 |
| PROTECTIVE ELEMENT WITH ACHROMATIC CHARACTERISTICS | 2011 |
|
RU2591770C2 |
| CHECKING INTEGRITY OF A VALUABLE DOCUMENT | 2016 |
|
RU2724173C2 |
| DEVICE FOR MEASURING OPTICAL CHARACTERISTICS OF DOCUMENT | 2010 |
|
RU2447499C1 |
| DEVICE FOR ANALYSING DOCUMENTS | 2005 |
|
RU2378704C2 |
| METHOD AND APPARATUS FOR SCANNING BONES IN MEAT | 2015 |
|
RU2705389C2 |
| METHOD FOR MANUFACTURE OF HOLOGRAM, AS WELL AS PROTECTIVE ELEMENT AND PROTECTED DOCUMENT | 2018 |
|
RU2777614C2 |
| METHOD AND DEVICE FOR SHEET MATERIAL PROPERTY CONTROL | 2005 |
|
RU2363987C2 |
| METHOD FOR DETERMINING AUTHENTICITY OF BANK NOTES AND DEVICE FOR REALIZATION OF SAID METHOD | 2003 |
|
RU2271576C2 |
| VALUABLE DOCUMENT PROTECTED AGAINST FORGERY AND METHOD OF DETERMINING ITS AUTHENTICITY | 2012 |
|
RU2523812C2 |
