Dynamic Sampling Interval for Time Lapse Image Stabilization
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Solution Overview
Problem
Existing time lapse image generation methods require fixed sampling intervals, leading to inefficient storage usage and image stabilization, as they do not adapt in real-time to changing conditions such as camera zoom, battery level, subject movement, or environmental factors.
Innovation Solution
A photographing apparatus that dynamically adjusts the sampling interval in real-time based on reference values like zooming value, battery level, subject movement, illumination, and audio signals, allowing for adaptive frame selection and compression during time lapse photography.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a fixed sampling interval is used for time lapse image generation, then the processing is simple and straightforward, but the storage space efficiency deteriorates and image stabilization performance worsens
Solution Approach 1:
The patent implements dynamic sampling interval adjustment where the sampling interval changes over time based on detected subject movement. The system transitions from a fixed sampling interval to a variable sampling interval that adapts to real-time conditions, allowing shorter intervals during movement events and longer intervals during stable periods, thereby optimizing storage efficiency without requiring complex real-time processing adjustments
Solution Approach 2:
The system changes the sampling interval parameter based on detected subject movement characteristics. By monitoring movement and adjusting the sampling interval parameter dynamically, the system achieves better storage efficiency and image stabilization while maintaining relatively simple processing architecture
2Ease of operation
If a fixed sampling interval is used for time lapse image generation, then the system operation is simple, but image stabilization performance deteriorates
Solution Approach 1:
The system employs dynamic sampling interval adjustment based on subject movement detection. During movement events, the sampling interval shortens automatically to capture more frames, providing more data for stabilization algorithms. During stable periods, the interval lengthens, reducing processing load while maintaining stabilization quality through the accumulated movement data
Solution Approach 2:
The system implements a feedback mechanism where subject movement is detected and used to adjust the sampling interval in real-time. This closed-loop control allows the system to automatically optimize image stabilization by increasing sampling density during movement events without requiring manual intervention or complex operational procedures
3Quantity of substance
If the sampling interval is adjusted in real-time based on reference values, then storage space efficiency improves and image stabilization enhances, but the device complexity increases
Solution Approach 1:
The patent implements dynamic sampling interval adjustment where the sampling interval changes over time based on detected subject movement. The system transitions from a fixed sampling interval to a variable sampling interval that adapts to real-time conditions, allowing shorter intervals during movement events and longer intervals during stable periods, thereby optimizing storage efficiency without requiring complex real-time processing adjustments
Solution Approach 2:
The system changes the sampling interval parameter based on detected subject movement characteristics. By monitoring movement and adjusting the sampling interval parameter dynamically, the system achieves better storage efficiency and image stabilization while maintaining relatively simple processing architecture
4Stability of the object's composition
If the sampling interval is adjusted in real-time based on reference values, then image stabilization improves, but the device complexity increases
Solution Approach 1:
The system employs dynamic sampling interval adjustment based on subject movement detection. During movement events, the sampling interval shortens automatically to capture more frames, providing more data for stabilization algorithms. During stable periods, the interval lengthens, reducing processing load while maintaining stabilization quality through the accumulated movement data
Solution Approach 2:
The system implements a feedback mechanism where subject movement is detected and used to adjust the sampling interval in real-time. This closed-loop control allows the system to automatically optimize image stabilization by increasing sampling density during movement events without requiring manual intervention or complex operational procedures
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
This approach reduces storage space requirements, enhances image stabilization, and optimizes processing time by dynamically adjusting the sampling interval in response to changing conditions, resulting in improved time lapse image generation.
Implementation Method 1
a camera configured to generate an image signal by photoelectric conversion of incident light
Data Source
Figure 1
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Figure 4
AI summary
A photographing apparatus is provided, including a photographing device comprising imaging circuitry configured to generate an image signal by photoelectric conversion of incident light, a processor comprising processing circuitry configured to determine a sampling interval of time lapse photographing over time based on a reference value acquired in real time while the time lapse photographing is performed, to sample a plurality of input frames generated from the image signal at the sampling interval while the time lapse photographing is performed, to stabilize a plurality of frames selected by sampling the plurality of input frames using a window determined based on the sampling interval, and to compress the plurality of selected frames at an output frame rate to generate a time lapse image file, and a storage configured to store the time lapse image file.