Selfie Camera Positioning Guide for Image Stitching
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Solution Overview
Problem
During selfie-taking, the limited hand-free pose and potential inclusion of the selfie stick in images make it difficult to achieve a non-selfie-taking effect, and existing image stitching algorithms face challenges such as brightness and contrast changes, leading to unsatisfactory stitching results.
Innovation Solution
A method and device that display indication information to guide users in capturing images from a consistent position and angle, allowing for the removal of arm parts and subsequent image stitching to achieve a non-selfie-taking effect, reducing computational complexity and improving stitching quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If image stitching algorithm is used to stitch multiple selfies, then non-selfie-taking effect can be achieved, but stitching quality deteriorates due to brightness and contrast changes
Solution Approach 1:
The patent applies preliminary action by guiding users to capture multiple selfies from predetermined positions and angles before stitching. The system provides indication information (arrows, lines, graphics) that instruct users on exact camera placement and orientation, ensuring consistent capture conditions before the stitching process begins. This preliminary guidance prevents brightness and contrast variations that would otherwise degrade stitching quality.
Solution Approach 2:
The patent implements feedback by providing real-time indication information to users during the selfie capture process. The system displays visual cues (arrows indicating direction, lines indicating alignment, graphics showing correct positioning) that give immediate feedback on whether the camera is positioned correctly. This feedback loop ensures users can adjust their capture position and angle to match the predetermined requirements, thereby maintaining consistent image quality for subsequent stitching.
2Reliability
If feature-based stitching algorithm is used, then stitching robustness is improved, but computational complexity increases
Solution Approach 1:
The patent reduces algorithmic complexity through preliminary action by pre-defining the capture positions and angles before stitching. By guiding users to capture images from specific predetermined locations with specific orientations, the system simplifies the subsequent stitching process. The indication information provided to users during capture phase prepares the data in advance, making the stitching algorithm simpler and more efficient while maintaining robustness.
3Ease of operation
If user takes selfie with one hand, then selfie-taking function is achieved, but pose freedom is limited and arm may appear in image
Solution Approach 1:
The patent applies segmentation by dividing the selfie capture process into multiple separate captures instead of requiring a single complex pose. Users are guided to take multiple selfies from different predetermined positions and angles, with each capture being simple and easy to perform. The final stitched image combines these segmented captures to achieve a comprehensive view that would be impossible in a single pose, thereby eliminating the need for contorted one-handed poses.
Data Source
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AI summary
Embodiments of the present invention relate to a method for achieving a non-selfie-taking effect through selfie-taking and a photographing device. The method includes: displaying indication information on a photographing device, where the indication information is used to indicate a placement position and a placement angle of the photographing device; performing photographing according to the indication information to obtain at least two images; removing arm part images that are separately included in the at least two images and that are photographed by a user by using the photographing device, to obtain at least two remaining images; and stitching the at least two remaining images. For a plurality of images photographed when the user places the photographing device at a same position and a same angle, an amount of image stitching computation can be reduced. Therefore, image stitching efficiency is greatly improved, and an image stitching effect can be better.