Image Capture Rotation Control for Power Saving
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Solution Overview
Problem
Cameras with pan and tilt functions, especially battery-driven ones, face challenges in reducing power consumption when image blur correction is not necessary, leading to reduced time for automatic image capture due to continuous operation of pan and tilt mechanisms.
Innovation Solution
An image capturing apparatus with rotation means for correcting image blur and searching for objects, featuring calculation means to determine if the rotation amounts are below threshold values, allowing the apparatus to stop the rotation mechanisms and conserve power.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the pan and tilt mechanisms are continuously operated for image blur correction and object search, then the image capture quality and functionality are improved, but the power consumption increases significantly
Solution Approach 1:
The system dynamically adjusts the operation state of pan and tilt mechanisms based on real-time detection conditions. When shaking exceeds the threshold or objects are detected, the mechanisms activate; when conditions are stable, they remain inactive, optimizing power consumption while maintaining capture quality.
Solution Approach 2:
The image capturing apparatus autonomously determines when to activate or deactivate pan and tilt functions based on self-detected shaking levels and object presence, without requiring external control, thereby reducing unnecessary power consumption while maintaining image quality.
2Adaptability or versatility
If the pan and tilt mechanisms are continuously operated, then object search capability is improved, but the duration of automatic image capture is reduced
Solution Approach 1:
Instead of continuous operation, the pan and tilt mechanisms perform periodic activation only when objects are detected or shaking occurs. This intermittent operation mode maintains object search capability while significantly extending the duration of automatic image capture by reducing overall power consumption.
3Productivity
If the rotation amount threshold is set low, then the sensitivity of stopping unnecessary operations is improved, but the risk of stopping necessary image blur correction is increased
Solution Approach 1:
The system uses a dynamically determined threshold value for rotation amount that balances power saving and image quality. The threshold is set based on predetermined shaking levels that distinguish between normal hand-held movement (requiring correction) and stable conditions (allowing power saving), optimizing both productivity and reliability.
Data Source
AI summary
An image capturing apparatus comprises an image capture device configured to capture an object image, a rotation device capable of rotating the image capture device, a first calculation unit configured to calculate a first rotation amount of the rotation unit for correcting image blur based on shaking of the image capturing apparatus, a second calculation unit configured to calculate a second rotation amount for searching for an object from an image captured by the image capture unit, and a stopping unit configured to stop the rotation unit in a case where the first rotation amount and the second rotation amount are both less than threshold values respectively set for the first rotation amount and the second rotation amount.