Preview Image Display Method for Selfie Stick Face Detail Visibility
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Solution Overview
Problem
When using selfie sticks, users have difficulty viewing the details of their face in the preview image on the display screen due to the increased distance between the camera and their eyes, making it hard to capture clear selfies.
Innovation Solution
A preview image display method that automatically switches between displaying the original image and an amplified human face image, allowing users to see their face details clearly by recognizing human faces and amplifying them on the display screen, either full-screen or in a picture-in-picture format, until they are satisfied with their position and facial expression.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the selfie stick is stretched further to capture the whole picture, then the captured composition includes more of the scene, but the visual angle of the display screen becomes smaller and users cannot clearly see their face details
Solution Approach 1:
The display screen is segmented to show different content: the main preview image shows the full captured composition, while a separate picture-in-picture window displays the amplified face image. This allows users to see both the overall composition and face details simultaneously without compromising either view.
Solution Approach 2:
The solution adds a new dimension to the display by introducing a picture-in-picture overlay. Instead of choosing between full-screen preview or face zoom, the system layers the face image on top of the preview, creating a multi-layered display that provides both views concurrently.
2Loss of information
If the display screen shows the original preview image, then the captured composition is visible, but the face details are too small to see clearly when using a selfie stick
Solution Approach 1:
The system creates a copy of the face region from the preview image and displays it in an amplified form within the picture-in-picture window. This copy allows users to examine face details closely without losing the overall composition context in the main preview area.
Solution Approach 2:
By adding the picture-in-picture dimension, the system provides face detail information without replacing the composition view. The amplified face image exists in an additional display layer, preserving all original information while adding enhanced detail visibility.
3Ease of operation
If the display screen is used at normal distance, then users can see preview details clearly, but using a selfie stick increases the distance and reduces the visual angle
Solution Approach 1:
The picture-in-picture display adds a new dimension that compensates for the reduced visual angle caused by increased distance. The amplified face image in the overlay provides the detail visibility that would normally require being closer to the screen, effectively counteracting the distance penalty of using a selfie stick.
Solution Approach 2:
The system changes the display parameter by providing an amplified view of the face region. This parameter change in image magnification compensates for the reduced visual angle, allowing users to see face details clearly even when the selfie stick extends the distance between camera and user.
Data Source
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AI summary
The present invention is related to a preview image display method and apparatus, a computer program and a recording medium. The method comprises: determining if an image captured by a camera in a first duration includes a human face; if an image captured by a camera in a first duration includes a human face, amplifying a human face in an image captured by the camera in a second duration; displaying an amplified human face image as a preview image on a display screen; when receiving a shooting instruction, shooting an image captured by the camera according to the shooting instruction. By displaying an amplified human face image, the method allows a user to clearly see his/her face details when shooting with a selfie stick.