Video Subject Framing With Auto Tracking and Jitter Compensation
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Solution Overview
Problem
Existing video recording methods fail to maintain a shot subject at an optimal visual position, leading to poor presentation effects and user experience due to subject movement and camera jitter, especially when the subject changes form or is held by hand.
Innovation Solution
An electronic device with a camera and display processes raw images to highlight a target shot subject at a fixed position, performing jitter compensation and smoothing to stabilize the subject's position, reducing the need for real-time adjustments and enhancing the visual effect.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the user manually tracks and adjusts the subject position in real-time, then the subject can be kept at an optimal visual position, but the shooting operation becomes complex and difficult to operate
Solution Approach 1:
The system automatically detects and tracks the subject, performing position adjustment without user intervention. The electronic device autonomously identifies the subject in each frame and recalculates positioning, eliminating the need for manual tracking while maintaining precise subject positioning throughout the video recording process
Solution Approach 2:
The patent replaces manual mechanical adjustment with automated image processing and coordinate calculation algorithms. By using computer vision techniques to detect subject boundaries and calculate optimal positions, the system substitutes complex manual operations with automated digital processing, achieving both precision and ease of use
2Area of stationary object
If the camera collects a wide viewfinder range to capture more picture content, then the scene coverage is improved, but the subject cannot be highlighted effectively
Solution Approach 1:
The patent divides the preview image into multiple regions, with the subject image representing a focused segment containing the detected subject. By segmenting the wide viewfinder range into a broader preview context and a concentrated subject region, the system simultaneously preserves comprehensive scene coverage while creating a dedicated area for subject highlighting with precise positioning and smoothing effects
3Manufacturing precision
If the subject tracking is performed with high precision to maintain optimal position, then the subject presentation is improved, but the background changes sharply causing ghosting effects
Solution Approach 1:
The patent applies different parameter settings to different regions of the image. The subject region uses high-precision tracking parameters to maintain optimal positioning, while the background region employs smoothing parameters that reduce sharp transitions. By dynamically adjusting processing parameters based on spatial location, the system achieves precise subject positioning without inducing ghosting artifacts in the background
Data Source
AI summary
This application provides a shooting method and an electronic device. The method includes: The electronic device enables a camera application; and after detecting a video recording operation, the electronic device displays a preview image on a recording interface and highlights a subject image of a target shot subject, where the preview image and the subject image are obtained through processing based on a raw image, the target shot subject is at a target position on the subject image, and a viewfinder range of the subject image is within a viewfinder range of the preview image. In this way, a user only needs to keep the target shot subject within the viewfinder range of the preview image, so that video recording can be performed without requiring real-time and precise adjustment of a position of the target shot subject.