UAV Bifocal Camera Image Processing for Accurate Picture-in-Picture Display
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Solution Overview
Problem
Conventional image processing methods for bifocal cameras on UAVs, such as side-by-side and picture-in-picture displays, suffer from inaccuracies due to differences in field of view (FOV) between infrared thermal imaging and visible light lenses, leading to suboptimal image presentation for flight users, particularly affecting measurement accuracy.
Innovation Solution
An image processing method and apparatus that acquires images from both lenses, determines current FOV information, and calculates target display information to achieve accurate picture-in-picture displaying in real scene proportions, dynamically adjusting for changes in lens parameters like FOV and image resolution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If side-by-side displaying is used for bifocal camera images, then both infrared thermal image and visible light image can be displayed, but the visible light image must be downscaled due to large FOV difference, resulting in poor image presentation effect
Solution Approach 1:
The patent implements picture-in-picture displaying where one image is nested within another, with the infrared thermal image displayed in a smaller window overlaid on the visible light image. This nesting approach allows both images with different FOV to be displayed simultaneously without requiring downscaling, thereby maintaining image quality while enabling dual-display functionality.
2Ease of operation
If picture-in-picture displaying is used, then one image can be displayed in full screen, but the other image is displayed in a very small window, making it suitable only for simple preview and not for accurate measurement
Solution Approach 1:
The patent introduces dynamic switching capability that allows users to switch between picture-in-picture mode for preview and full-screen mode for accurate measurement. The system can dynamically adjust the display mode based on operational requirements, enabling both simple preview and accurate measurement functions to be fulfilled by the same bifocal camera system.
3Adaptability or versatility
If conventional picture-in-picture displaying is used, then display flexibility is improved, but the displaying manner cannot maintain real scene proportion due to lens parameter changes, causing inconsistent picture stacking proportion
Solution Approach 1:
The patent implements a feedback mechanism where the system acquires FOV information from both lenses and uses this information to dynamically adjust the display parameters. By continuously monitoring lens parameters and adjusting the picture-in-picture display proportion accordingly, the system maintains accurate real scene proportion representation even when lens parameters change, ensuring consistent picture stacking proportion.
Data Source
AI summary
Embodiments of the present invention discloses an image processing method and apparatus, a device and a storage medium. The method includes: acquiring a first image and a second image, where the first image and the second image are respectively captured and transmitted by a first lens and a second lens disposed on an unmanned aerial vehicle (UAV); acquiring current field of view (FOV) information of the first lens and the second lens; and determining target display information of the second lens according to the FOV information and datum display information set for the first lens.