Trimmed Image Centerline Adjustment for Inclined Trunk Balance
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Solution Overview
Problem
Existing image processing methods for creating certification photographs are inadequate in maintaining balance when the face and trunk in a photographic image have different centerlines, leading to poor trimming results, especially when the images are inclined.
Innovation Solution
An image processing method that detects the inclination of both the reference part (face) and other part (trunk) and adjusts the trimming centerline accordingly, ensuring the trimmed image is symmetrical about the new centerline, which is inclined based on the detected inclination and importance of the other part.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the centerline of the face is used as the trimming centerline, then the face image is symmetrical and properly positioned, but the trunk image becomes extremely inclined or abnormally small when the face and trunk have different centerlines
Solution Approach 1:
The patent applies asymmetry by determining the trimming centerline based on the trunk image rather than using the face centerline directly. When the face and trunk centerlines differ, the trimming centerline is positioned asymmetrically relative to the face centerline, specifically at a position that is 1/4 to 3/4 of the distance from the face centerline toward the trunk centerline. This asymmetric positioning resolves the contradiction by prioritizing trunk symmetry while maintaining acceptable face positioning, preventing the extreme inclination and abnormal sizing of the trunk image that would occur with symmetric face-centered trimming.
2Stability of the object's composition
If the trimming centerline is adjusted to match the trunk inclination, then the trunk image balance is improved, but the face image may become slightly inclined
Solution Approach 1:
The patent applies local quality by making the trimming centerline position adaptive rather than fixed. The centerline position is locally adjusted based on the specific relationship between face and trunk centerlines. The system calculates the deviation between face and trunk centerlines and dynamically positions the trimming centerline at an optimal point (1/4 to 3/4 of the way from face to trunk centerline) that locally optimizes the balance for that specific image configuration, rather than applying a universal symmetric rule.
3Productivity
If automatic trimming is performed without considering trunk inclination, then the processing is simple and fast, but the trimmed image has poor balance and aesthetics
Solution Approach 1:
The patent applies preliminary action by performing trunk centerline detection and inclination analysis before the actual trimming operation. The system first detects the trunk image, determines its centerline and inclination angle, then uses this information to calculate the optimal trimming centerline position in advance. This preliminary analysis of trunk characteristics allows the subsequent trimming to automatically achieve balanced results without requiring manual intervention or complex real-time adjustments during the cutting process.
Data Source
AI summary
A trimmed image is obtained by trimming for cutting out from a photographic image obtained by taking a photograph of an object including a reference part, and one or more other part which has a common centerline with the reference part and is arranged in a direction in which the centerline of the reference part extends, an image of an area including a part or the whole of the reference part and said other part along a trimming centerline. The centerline of the reference part is obtained and the degree and the direction of inclination of said other part are detected from the photographic image. The trimming centerline is inclined by a larger angle away from the centerline toward the direction of the inclination of said other part as the degree of inclination increases.