Subject Area Detection Using Majority Decision Processing
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Solution Overview
Problem
Existing image processing technologies face challenges in accurately detecting subject areas, particularly in varied situations, which limits the performance of automatic functions and user interface expression, necessitating improved detection accuracy.
Innovation Solution
An image processing apparatus and method that employs a subject detection unit and a subject area determination unit using majority decision processing, calculating overlap degrees between detected subject areas from multiple iterations of subject detection, and determining the final subject area based on overlap and reliability analysis across different image resolutions or detection types.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If subject detection processing is performed multiple times to improve detection accuracy, then the reliability of subject area detection is improved, but the device complexity and processing time increase
Solution Approach 1:
The patent divides the subject detection process into multiple independent detection executions, each producing a subject area result. These separate detection results are then segmented and evaluated individually before being combined through majority decision processing, allowing the system to maintain high reliability while managing complexity through structured division of the detection task
Solution Approach 2:
The patent combines multiple subject area detection results through majority decision processing. By merging the outcomes of multiple independent detections and selecting the most frequently occurring subject area, the system achieves improved reliability without requiring a single complex detection algorithm
2Measurement precision
If multiple subject detection processing are performed on the same input image, then the final subject area determination becomes more accurate, but the processing time increases
Solution Approach 1:
The patent performs preliminary subject detection processing multiple times on the input image before final determination. By conducting these preliminary detections in advance and storing their results, the system can quickly make the final subject area determination through majority decision without requiring time-consuming real-time analysis during the actual photographing support function
Solution Approach 2:
The patent creates multiple copies of the detection result by performing subject detection processing multiple times on the same input image. Each detection produces a copied subject area result, and these copied results are then evaluated through majority decision to determine the final accurate subject area, reducing the need for repeated full processing
Data Source
AI summary
An image processing apparatus includes a subject area detector and a subject area determinator. The subject area detector is configured to perform subject detection processing to detect a subject area from an input image. The subject area determinator is configured to determine a final subject area by majority decision processing that is based on the subject areas detected in the subject detection processing performed a plurality of times.