Intercom Door Station Face Alignment Guidance
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Solution Overview
Problem
Existing intercom systems face challenges in capturing reliable images of visitors operating the user interface, leading to inaccuracies in image-based identification due to the visitor turning aside or facing down, which affects the reliability of person identification.
Innovation Solution
An intercom door station equipped with an image capture device and a controller that ensures the visitor's face falls within a predetermined range and is authenticated before accepting the operating command, displaying guidance indicators to align the face correctly and transmitting a reliable image for identification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the intercom door station captures images of visitors operating the user interface, then image-based identification can be performed, but the visitor may turn aside or face down causing poor image quality and low identification accuracy
Solution Approach 1:
The system performs preliminary detection of the visitor's face orientation and position before accepting the operating command. The controller detects whether the visitor's face is within the predetermined range in the captured image, and only proceeds with authentication and command acceptance when the face is properly oriented and positioned, preventing poor quality images from being used for identification
Solution Approach 2:
The system provides feedback to the visitor through a monitor displaying visual indicators (such as a frame or guide lines) showing the predetermined range where the face should be positioned. This real-time feedback allows the visitor to adjust their orientation and position to achieve proper face capture, thereby improving image quality and identification accuracy
2Reliability
If the system accepts operating commands without verifying face orientation, then user operation is convenient and fast, but image-based authentication becomes inaccurate
Solution Approach 1:
The system performs preliminary verification of face orientation and position within the predetermined range before accepting the operating command. The controller checks the captured image to confirm the visitor's face is properly oriented, and only then enables command acceptance and authentication, ensuring accurate identification without compromising the overall operation flow
Solution Approach 2:
The monitor displays visual feedback indicators that guide the visitor on how to position their face correctly. This feedback mechanism maintains ease of operation by providing clear, intuitive guidance rather than requiring complex manual adjustments, while simultaneously ensuring authentication accuracy through proper face capture verification
Data Source
Figure 1
Figure 2A~2B
Figure 3A~3C
AI summary
An object of the present disclosure is to improve the reliability of person identification. An intercom door station (outdoor station 1) according to an embodiment includes a director (133) and a signal output device (134). The director (133) gives a human (H1) a direction about what to do to satisfy a first condition. The signal output device (134) outputs a signal unlocking an electric lock device (V1) when finding a second condition satisfied. The first condition is that at least a particular region (H10) of the operator (H1) should fall within a predetermined range (R1) where the operator (H1) is identifiable. The second condition is that the operator (H1) should be successfully authenticated based on information about the particular region (H10).