Image Sensor Position Control for Continuous Capture Delays
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Solution Overview
Problem
Existing image pickup apparatuses face delays in starting the next imaging sequence during continuous image capture, especially when the time interval between captures is short, due to the need to move the image sensor to its initial position after each exposure, which disrupts the image stabilization performance.
Innovation Solution
An image pickup apparatus with a controller that manages the movement of the image sensor for image stabilization, allowing it to either return to a predetermined initial position or hold its position after the first imaging period, enabling efficient image stabilization during the next imaging period without centering the sensor, thus maintaining performance even with short time intervals between captures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the image sensor is moved to the initial position after each imaging period, then the image stabilization performance is maintained, but the start time of the next imaging sequence is delayed
Solution Approach 1:
The patent applies dynamics by making the image sensor position control adaptive based on the time interval between captures. When the time interval is long, the sensor returns to the initial position to maintain stabilization performance. When the time interval is short, the sensor holds its current position to avoid delays, dynamically adjusting behavior to optimize both performance and speed.
Solution Approach 2:
The patent changes the control parameter (image sensor position) based on the time interval parameter. By monitoring the time interval between imaging periods and adjusting the sensor position accordingly (returning to initial position vs. holding current position), the system optimizes the balance between stabilization performance and capture speed.
2Device complexity
If the image sensor is returned to the initial position after imaging, then the stabilization control is simplified, but the productivity of continuous imaging is reduced
Solution Approach 1:
The control system dynamically adjusts its behavior based on the time interval between captures. Rather than always returning to the initial position (simple but slow) or always holding position (complex but fast), the system adapts its control strategy to match the imaging requirements, optimizing both simplicity and productivity.
Solution Approach 2:
The patent changes the control parameter (sensor position) based on the time interval parameter. When time intervals are long, the system uses simple return-to-initial-position control. When time intervals are short, it switches to holding position control to maintain high productivity, thus optimizing the balance between control simplicity and imaging speed.
Data Source
AI summary
An image pickup apparatus includes a controller. The controller controls a mover so as to move, when an optical element in the imaging optical system moves, an image sensor for the image stabilization in each of a first imaging period and a next second imaging period. The controller selects and performs one of a first image stabilization control and a second image stabilization control after the first imaging period ends, the first image stabilization control controlling the mover so as to return the image sensor to a predetermined initial position and to move the image sensor from the predetermined initial position during the second imaging period, and the second image stabilization control controlling the mover so as to hold the image sensor at a position at an end of the first imaging period and to move the image sensor from the position at the end.