Biological Pattern Processing for Damaged Region Detection
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Solution Overview
Problem
Existing biological pattern authentication systems fail to effectively detect and present damage to users in a readily understandable manner, particularly when biological patterns like fingerprints are damaged due to surgical operations or burn injuries.
Innovation Solution
A biological pattern information processing device and method that detects unique regions in biological patterns and displays them using distinct display attributes, allowing users to easily identify damaged areas, and optionally repairs the pattern information to facilitate accurate authentication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Difficulty of detecting and measuring
If color information of pixels is used to detect foreign matter, then foreign matter detection capability is improved, but detection accuracy for damaged biological patterns deteriorates
Solution Approach 1:
The patent segments the detection task into two distinct processes: first detecting foreign matter using color information, then separately detecting damaged regions using template matching. This segmentation allows each detection method to specialize in its strength without interfering with the other, resolving the contradiction between foreign matter detection capability and detection accuracy for damaged patterns.
Solution Approach 2:
The patent introduces template matching as an intermediary process that bridges the gap between color-based foreign matter detection and accurate damaged pattern detection. The template matching step acts as a mediator that can distinguish between actual damage and foreign matter artifacts, thereby improving detection accuracy without sacrificing foreign matter detection capability.
2Productivity
If damaged biological patterns are used for authentication, then authentication functionality is maintained, but authentication reliability deteriorates
Solution Approach 1:
The patent performs preliminary detection of damaged regions before the authentication process. By identifying damaged areas in advance and excluding them from authentication, the system maintains authentication functionality using undamaged portions while ensuring authentication reliability is not compromised by including damaged regions.
Solution Approach 2:
The patent extracts and excludes damaged regions from the authentication process. By separating the damaged portions from the usable biological pattern data, the system maintains authentication functionality using only the intact regions, thereby preserving authentication reliability despite the presence of damage.
3Difficulty of detecting and measuring
If damage detection is added to the authentication system, then detection capability is improved, but system complexity deteriorates
Solution Approach 1:
The patent implements a multi-functional detection system where the same processing framework handles both foreign matter detection and damaged region detection. By making the detection system universal and capable of performing multiple detection tasks through different algorithms, the patent improves detection capability while minimizing the increase in system complexity.
Data Source
AI summary
A biological pattern information processing device includes: a detection result obtaining unit that obtains unique region information that is detected based on biological pattern information representing a biological pattern, the unique region information representing a unique region included in the biological pattern; and a display control unit that causes the unique region to be displayed using a display attribute, based on the obtained unique region information, the display attribute being different from that for a region of the biological pattern other than the unique region.