Nail Printing Device Image Guidance for Shape Adjustment
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Solution Overview
Problem
Users without experience face difficulties in adjusting fingernail shapes at home using nail printing devices, as they struggle to determine which parts of the nail to file and to what extent, leading to imbalanced and improperly shaped nails.
Innovation Solution
A nail printing device with a fingernail image obtaining unit, nail tip region extraction unit, and shape adjustment-required region extraction unit that aligns a model nail image with the user's nail image, highlighting the areas to be filed for shape adjustment, allowing users to easily achieve desired nail shapes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a user performs shape-adjusting operation for the nail by him/herself, then the user can adjust the nail shape at home, but it is extremely difficult for an ordinary person to determine which part of the nail and to which extent the nail should be filed
Solution Approach 1:
The patent uses image processing to create a digital copy of the nail and overlays a model nail image showing the desired shape. This allows the user to see exactly which portions need filing without requiring expertise in nail shaping, effectively copying the target shape onto the user's nail image for guidance.
Solution Approach 2:
The patent introduces an image processing system as an intermediary between the user and the nail shaping process. The system captures the nail image, processes it to highlight the filing subject portion, and presents it to the user, thereby mediating the complex decision-making about where and how much to file.
2Ease of operation
If the user performs shape-adjusting operation for the nail by him/herself, then the user can adjust the nail shape at home, but matching is not achieved among lengths and shapes of the nails already subjected to the shape adjustment
Solution Approach 1:
The system creates a digital model representing the desired nail shape and uses it as a template for all nails. By comparing each nail against this standardized model, the system ensures consistent shapes and lengths across all fingers, achieving precise matching that would be difficult for a novice user to accomplish manually.
Solution Approach 2:
The patent applies a universal model nail image that can be used for shaping all different nails (different fingers, different initial shapes). This single universal template ensures that all nails are shaped according to the same standards, achieving consistency across multiple different starting conditions.
3Ease of operation
If the user performs shape-adjusting operation for the nail by him/herself, then the user can adjust the nail shape at home, but the nails cannot help but being given up from the adjustment to the desired shapes since the nails are filed too much
Solution Approach 1:
The system performs preliminary analysis by capturing the nail image, processing it to identify the filing subject portion, and displaying the model nail image before the user actually files the nail. This preliminary guidance prevents the user from filing too much by clearly showing exactly what needs to be removed and how much.
Solution Approach 2:
The patent implements a feedback mechanism where the image processing system continuously monitors the nail shape by comparing the actual nail against the model nail image. This feedback guides the user's filing process in real-time, preventing over-filing by indicating when the desired shape has been achieved.
Data Source
AI summary
A nail printing device includes: a printing head which implements printing for a nail of a finger; a fingernail image obtaining unit which picks up a region containing the nail, and obtains a nail region image from a picked-up image; a nail tip region extraction unit which extracts a nail tip region of the nail, the nail tip region not overlapping a nail bed of the finger, from the nail region image; and a shape adjustment-required region extraction unit which positionally aligns a model nail image with the nail region image, and extracts, as a shape adjustment-required region, a region located outward of an outline of the model nail image in the nail tip region.