Image Processing Device Same Portion Search Prioritization
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Solution Overview
Problem
Existing imaging technologies face challenges in accurately detecting multiple portions of a subject, particularly in scenarios with vigorous subject movement and frequent occlusions, leading to decreased subject detection accuracy.
Innovation Solution
An image processing device that includes an acquisition unit, a detection unit, and a search unit. The search unit utilizes detection results from a previous image to classify detection results in a current image, prioritizing same portion searches over different portion searches to enhance accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple detection means are used to detect different portions of subjects, then the coverage of subject detection is improved, but the classification accuracy between different subjects deteriorates
Solution Approach 1:
The patent segments the search process into two distinct types: same portion search (comparing identical body parts across frames) and different portion search (comparing different body parts). This segmentation allows the system to apply appropriate search strategies for each case, maintaining high classification accuracy while detecting multiple subject portions through the prioritization mechanism where same portion searches are performed first before different portion searches.
2Stability of the object's composition
If a search process is performed to classify detection results using previous image data, then subject tracking continuity is improved, but the processing complexity increases
Solution Approach 1:
The patent applies preliminary action by performing same portion searches first before conducting different portion searches. This prioritization strategy pre-establishes the most reliable matching relationships (same body parts across frames) before attempting more complex different portion matches, thereby maintaining tracking continuity while reducing overall processing complexity through a hierarchical search approach.
Data Source
AI summary
An imaging apparatus acquires consecutive images in time order and performs image processing on the images. The imaging apparatus detects a first portion (a face or the like) of a subject in the images and detects a second portion (a torso or the like) of a subject in the images. The imaging apparatus uses a detection result obtained from a previously acquired image to perform processes of searching for a detection result obtained from a current image and classifying a detection result satisfying a condition for each of subjects. In the search process, a same portion search using detection results of the same portion from the previously acquired image and the current image is preferentially performed over a different portion search using detection results of different portions from the previously acquired image and the current image.