Variable Frame Rate Video Camera for Power and Memory Optimization
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Solution Overview
Problem
Conventional digital video cameras have limited power storage due to high frame rate video capture, which quickly depletes batteries and requires significant memory, necessitating a one-time setting of frame rate that may not adapt to changing capture requirements.
Innovation Solution
A digital video camera with a variable-frame-rate-trigger that allows users to dynamically adjust the frame rate during continuous capture using user inputs, such as varying force or inputs, enabling selection between different frame rates to optimize memory and power usage based on the capture scenario.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If high frame rate video capture is used, then capture quality is improved, but power consumption increases and battery life decreases
Solution Approach 1:
The patent implements dynamic frame rate adjustment during video capture based on motion detection. The system transitions from static predetermined frame rates to dynamic variable frame rates, increasing the frame rate when motion is detected and decreasing it when motion is absent, thereby optimizing the balance between capture quality and power consumption.
Solution Approach 2:
The patent changes the frame rate parameter dynamically during video capture based on motion detection results. The controller adjusts the frame rate from a first rate to a second rate depending on whether motion is detected, allowing the system to adapt to varying capture requirements and optimize power usage.
2Manufacturing precision
If high frame rate video capture is used, then capture quality is improved, but memory consumption increases
Solution Approach 1:
The system dynamically adjusts frame rate based on motion detection to optimize memory usage. When motion is detected, the frame rate increases to maintain capture quality. When motion is absent, the frame rate decreases to reduce memory consumption, allowing continuous capture without exhausting memory reserves.
Solution Approach 2:
The patent implements variable frame rate capture where the frame rate parameter is changed based on motion detection results. This allows the system to capture detailed motion events at high frame rates while using lower frame rates for static scenes, optimizing the balance between capture quality and memory consumption.
3Device complexity
If predetermined frame rate is set once, then device complexity is reduced, but adaptability to changing capture requirements deteriorates
Solution Approach 1:
The system performs self-adjustment of frame rate based on motion detection without requiring manual user intervention. The controller automatically detects motion and adjusts frame rate accordingly, providing adaptability while maintaining simple operation for the user.
Solution Approach 2:
The patent implements a feedback mechanism where motion detection results are fed back to the controller, which then adjusts the frame rate. This closed-loop system provides automatic adaptation to changing capture requirements while keeping the user interface simple.
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 flexible frame rate adjustment during video capture, conserving power and memory by reducing frame rate when necessary and increasing it for detailed recording of dynamic events, thus extending recording time and improving capture quality without interrupting the recording process.
Implementation Method 1
The two-dimensional photodetector array generates image data representative of the image of a scene imaged thereon. Each photodetector outputs a data value which corresponds to the intensity of light it receives.
Data Source
AI summary
A camera with a selector device that may be used for adjusting frame rate while capturing video; and associated subsystems and methodologies.