Shift Lens Group Blur Correction for Panning Shots
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Solution Overview
Problem
Existing panning shot techniques struggle with image blur correction during high-speed object capture, as they require matching angular velocities between the object and camera, making it difficult to initiate blur correction on time, especially when the shutter opportunity is short.
Innovation Solution
An image processing apparatus with a correction control unit that corrects image blur by driving a shift lens group based on the movement of a specified region, allowing for pre-focus image blur correction during a panning shot, utilizing a focus control unit to execute focus control on the object.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If focus control is executed before image blur correction, then the object can be brought into focus, but the time required for focus control increases and the panning shot success rate decreases
Solution Approach 1:
The patent applies preliminary action by executing image blur correction control before focus control during panning shot mode. The correction control unit drives the shift lens group to correct image blur of the specified region (object region) before the focus control unit brings the object into focus. This preliminary correction of image blur reduces the time required for focus control and increases the panning shot success rate, especially when the shutter opportunity time is short
2Measurement precision
If image blur correction is delayed until angular velocities match and object is recognized by focus control, then accurate correction can be achieved, but the timing for starting image blur correction is delayed
Solution Approach 1:
The system performs preliminary image blur correction by detecting the specified region (object region) in advance and executing correction control before focus control completes. The correction control unit uses the detected specified region to drive the shift lens group, achieving both timely correction and accurate targeting of the moving object
Solution Approach 2:
The determination unit continuously detects the specified region (object region) and provides feedback to the correction control unit. This feedback mechanism allows the system to adjust the shift lens group positioning in real-time based on the object's movement, ensuring accurate image blur correction even during high-speed panning shots
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables effective image blur correction before the object is brought into focus, reducing the time required for focus control and improving the success rate of panning shots by synchronizing camera and object angular velocities.
Implementation Method 1
a correction control unit configured to correct the image blur of a captured image by driving a correction unit
Data Source
AI summary
A digital camera that corrects an image blur of a captured image by driving a shift lens group is provided. The digital camera determines a specified region of the captured image, and when a panning shot will be performed, the digital camera drives the shift lens group based on a movement of the specified region to execute control to correct an image blur for the specified region, and subsequently executes focus control for focusing on an object.