Variable Capture Frame Rate Video Adaptation
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Solution Overview
Problem
Existing video capture systems often use fixed capture frame rates, which can result in undesired video quality when the speed of an activity changes, as setting a frame rate at the beginning may not adapt to changes in motion during recording.
Innovation Solution
A system that uses a variable capture frame rate, adjusting based on the motion of the image sensor and objects within its field of view, by generating visual and motion output signals to determine when to change the frame rate and interpolating frames to ensure smooth video capture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a fixed capture frame rate is set at the beginning of video capture, then the system is simple to operate, but the video quality deteriorates when the speed of activity changes
Solution Approach 1:
The patent applies dynamics by transitioning from a fixed frame rate to a variable frame rate that automatically adjusts based on detected motion. The system monitors motion levels in real-time and changes the capture frame rate accordingly, allowing the camera to capture high-speed activities at higher frame rates and low-speed activities at lower frame rates, thus maintaining optimal video quality throughout the recording.
Solution Approach 2:
The patent implements feedback by using motion detection to continuously monitor the activity level during video capture. The detected motion information feeds back to the frame rate control mechanism, which adjusts the capture frame rate in response to changing motion conditions. This closed-loop control ensures that the frame rate always matches the actual activity level, resolving the contradiction between operational simplicity and video quality.
2Use of energy by moving object
If a low capture frame rate is used to capture low-speed activity, then resource usage is reduced, but the video quality deteriorates when the activity turns into high-speed
Solution Approach 1:
The system dynamically adjusts the capture frame rate based on real-time motion detection. When motion levels indicate low-speed activity, the system uses lower frame rates to conserve resources. When motion levels indicate high-speed activity, the system automatically switches to higher frame rates to maintain video quality. This dynamic adaptation resolves the contradiction between resource usage and video quality by matching the frame rate to the actual activity level.
Solution Approach 2:
The patent changes the capture frame rate parameter in response to detected motion conditions. The system monitors motion parameters and adjusts the frame rate parameter accordingly, transitioning between different capture modes. This parameter change allows the system to optimize both resource usage and video quality by selecting the appropriate frame rate based on the current activity level.
3Reliability
If a high capture frame rate is used to capture high-speed activity, then video quality is improved, but resource usage increases
Solution Approach 1:
The system dynamically adjusts the capture frame rate based on real-time motion detection. When motion levels indicate high-speed activity, the system uses higher frame rates to maintain video quality. When motion levels indicate low-speed activity, the system switches to lower frame rates to reduce resource usage. This dynamic adaptation resolves the contradiction between video quality and resource usage by matching the frame rate to the actual activity level.
Solution Approach 2:
The patent changes the capture frame rate parameter in response to detected motion conditions. The system monitors motion parameters and adjusts the frame rate parameter accordingly, transitioning between different capture modes. This parameter change allows the system to optimize both video quality and resource usage by selecting the appropriate frame rate based on the current activity level.
4Adaptability or versatility
If the capture frame rate is adjusted dynamically based on motion, then video quality adapts to motion changes, but the device complexity increases
Solution Approach 1:
The patent implements multi-functionality by integrating motion detection and frame rate control into a unified system. The motion detection mechanism serves multiple purposes: it monitors activity levels, triggers frame rate changes, and maintains optimal video quality. This integrated approach reduces the need for separate complex components, thereby managing system complexity while achieving adaptive video capture.
Solution Approach 2:
The system performs self-service by automatically detecting motion levels and adjusting frame rates without external intervention. The motion detection and frame rate control operate autonomously, with the system monitoring and adapting to activity levels on its own. This self-service capability simplifies the user experience while managing system complexity through automated control.
Data Source
AI summary
An image sensor may generate visual output signals conveying visual information within a field of view of the image sensor. First and second video information defining first and video content may be generated based on the visual output signals. The first video content may be captured using a first capture frame rate and the second video content may be captured using a second capture frame rate. Motion of the image sensor and/or motion of an object within the field of view may be determined. The first capture frame rate may be changed based on the determined motion. Third video information defining third video content may be generated based on the first video information and the second video information. The third video content may include one or more frames of the first video content and one or more frames of the second video content.