Upper Body Detection for Digital Signage Orientation
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Solution Overview
Problem
Existing digital signage technologies face challenges in accurately detecting individuals and determining their direction, especially when faces are not directly visible or are oriented in ways that complicate image data analysis.
Innovation Solution
An image processing apparatus and method that includes an upper body feature data storage unit and detection unit, which stores and extracts directional feature data to identify the upper body of a person across various orientations, enabling accurate detection and direction determination regardless of the person's orientation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If facial image extraction is used for detection, then detection speed is improved, but detection accuracy deteriorates when face direction is not optimal
Solution Approach 1:
The patent changes the detection parameter from face-specific features to upper body directional features. By extracting features from the upper body region (shoulders, torso) rather than the face, the system maintains detection capability across all body orientations. The feature extraction process uses directional information from the upper body to determine person direction, making detection accurate regardless of face orientation.
2Device complexity
If direct face extraction is used, then device complexity is reduced, but adaptability to different body orientations deteriorates
Solution Approach 1:
The upper body detection system serves multiple functions: it detects person presence, determines body direction, and works for all orientation types (facing forward, backward, sideways). By using the upper body as the detection target instead of the face, a single detection system achieves universal applicability across all body orientations, eliminating the need for separate detection mechanisms for different directions.
Data Source
AI summary
Disclosed herein is an image processing apparatus including an upper body feature data storage unit (110) which stores upper body directional feature data, which indicates the upper body of a person and indicates that the upper body is facing a specific direction, for each of a plurality of directions in conjunction with directional data indicative of the direction of the upper body directional feature data; and an upper body detection unit (140) which extracts upper body image data indicative of the upper body of the person from image data by reading the plurality of upper body directional feature data stored in the upper body feature data storage unit (110) in conjunction with the directional data and using each of the plurality of upper body directional feature data.