Zooming Center Selection in Digital Imaging Devices
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Solution Overview
Problem
Conventional digital cameras can only zoom in on the center of an image, requiring users to physically move the device if they want to zoom in on a different point, limiting flexibility in selecting the zooming center.
Innovation Solution
An electrical device with zooming function that includes an image-sensing module, display unit, and processing unit, which allows users to select any point on the image as the zooming center through a selection signal, using digital or optical zooming, or a combination of both, to reframe the image with the selected point at the center.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a digital camera uses conventional zooming function, then the center of the sensed image can be zoomed in, but users cannot select other points as zooming center without moving the device
Solution Approach 1:
The patent creates a virtual copy of the image on the display unit, allowing users to select any point on this displayed image as the zooming center. The processing unit then processes the original sensed image to generate a zoomed view centered at the selected point, without requiring physical device movement. This copying approach enables flexible zooming center selection while maintaining operational simplicity.
2Measurement precision
If users want to zoom in on a specific point other than the center, then they must move the digital camera, but this reduces operational convenience
Solution Approach 1:
The patent replaces the mechanical approach of physically moving the camera device with a digital/image processing approach. The processing unit calculates and generates a zoomed image centered at the user-selected point through coordinate transformation and image processing algorithms, eliminating the need for mechanical device repositioning while achieving precise zooming target acquisition.
3Adaptability or versatility
If the electrical device allows any point selection for zooming, then zooming flexibility is improved, but the device complexity increases
Solution Approach 1:
The processing unit is designed with multi-functionality to handle various zooming center selections through a unified image processing framework. The same processing module performs both standard center zooming and user-selected point zooming, maintaining code reusability and structural simplicity while providing enhanced functionality. This universal approach avoids duplicating entire processing pipelines for different zooming modes.
Data Source
AI summary
An electrical device with zooming function includes an image-sensing module, a display unit and a processing unit. The processing unit is electrically connected to the image-sensing module and the display unit respectively. The image-sensing module senses an image. The processing unit includes an image display module, a selecting module and a zooming-control module. The image display module makes the display unit display the sensed image. The selecting module receives a selection signal for selecting a reference point from the image displayed on the display unit. The zooming-control module makes the image-sensing module sense another image, the reference point is in the center of which, by zooming.