Camera Assembly Light Shielding for Close-Range Face Recognition
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Solution Overview
Problem
Existing camera assemblies in mobile terminals struggle to recognize faces at close distances due to large spaced distances between depth devices and cameras, leading to light crosstalk and reduced reliability in face recognition performance.
Innovation Solution
A camera assembly design where the depth device, camera, and projector are strategically positioned on a support with a connecting part, first fixing part, and second fixing part, allowing for a spaced configuration that prevents light crosstalk while enabling image information overlap at short distances, enhancing reliability and efficiency in face recognition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the depth device and camera are positioned close together to improve face recognition at short distances, then the ability to recognize close faces is improved, but light crosstalk occurs between the depth device and camera
Solution Approach 1:
The patent introduces a light shielding component as an intermediary element positioned between the depth device and the camera. This light shielding component selectively blocks light paths to prevent crosstalk while allowing the necessary optical paths for depth measurement and image capture to function, thus resolving the contradiction between close positioning for short-distance recognition and light isolation to prevent crosstalk.
2Object-affected harmful factors
If the depth device and camera are positioned far apart to prevent light crosstalk, then light interference is reduced, but the spaced distance becomes too large for effective face recognition at close distances
Solution Approach 1:
The light shielding component serves as a directional intermediary that selectively blocks light paths. It allows the depth device and camera to be positioned at an optimal distance for close-face recognition while preventing light crosstalk by blocking specific light paths that would otherwise cause interference between the two components.
3Object-affected harmful factors
If a light shielding component is added to prevent light crosstalk, then light interference is reduced, but the device structure becomes more complex
Solution Approach 1:
The light shielding component is integrated with the existing support structure of the camera assembly, merging the light shielding function with the structural support function. This integration approach adds the necessary light isolation capability while minimizing the increase in overall device complexity by utilizing existing structural elements.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution improves the camera assembly's ability to recognize faces at close distances by preventing light crosstalk and ensuring accurate image capture, thereby enhancing the reliability and usability of face recognition in mobile terminals.
Implementation Method 1
the projector is configured to project light
Implementation Method 2
the depth device is configured to capture depth image information
Implementation Method 3
the camera is configured to capture color image information
Data Source
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Figure 5~6
AI summary
An imaging component (52), an electronic component (5), an electronic apparatus (100), and a control method for the electronic apparatus (100). The imaging component (52) comprises a frame (521), a depth device (522), a camera (523), and a projector (524). The depth device (522), the camera (523), and the projector (524) are all disposed on the frame (521). The depth device (522) and the projector (524) are spaced apart from each other. A first functional device can be disposed on the frame (521) at a region between the depth device (522) and the projector (524). The depth device (522) is used for gathering depth image information. The camera (523) is used for gathering color image information.