Dynamic Frame Rate Conversion for Power Efficiency
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Solution Overview
Problem
Existing frame rate up-conversion techniques in image processing apparatuses are inefficient as they apply the same processing to both moving and still pictures, leading to increased signal processing and power consumption, regardless of the image state.
Innovation Solution
Implementing a frame rate conversion system that dynamically adjusts the frame rate based on the motion amount in the image signal, using a feature detector to analyze the input image and adjust the frame rate accordingly, with higher frame rates applied to scenes with large motion and lower rates for still pictures, thereby optimizing power usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If frame rate up-conversion processing is conducted regardless of image state, then moving pictures can be displayed smoothly, but signal processing amount increases and power consumption increases
Solution Approach 1:
The frame rate conversion processing is dynamically adjusted based on the motion amount detected in the image. The system switches between different operating states: performing frame rate up-conversion when motion is detected, and skipping the processing when the image is static. This dynamic adaptation resolves the contradiction by making the frame rate adjustment conditional rather than fixed, thereby reducing power consumption during static displays while maintaining smooth motion display when needed.
Solution Approach 2:
The system changes the frame rate parameter based on the detected image state. When motion is detected, the frame rate is increased through up-conversion processing; when no motion is detected, the frame rate remains at the original level. This parameter change strategy allows the system to optimize between display quality and power consumption by adapting the frame rate to the actual content requirements.
2Speed
If frame rate up-conversion processing is conducted regardless of image state, then moving pictures can be displayed smoothly, but amount of signal processing increases
Solution Approach 1:
The system dynamically determines whether to perform frame rate up-conversion based on motion detection results. By making the processing conditional, the system avoids unnecessary signal processing operations on static images, thereby improving overall signal processing efficiency while maintaining the capability to process high-frame-rate content when motion is present.
Solution Approach 2:
Instead of applying frame rate up-conversion to all images uniformly, the system applies the processing only partially - specifically to images containing motion. This selective application of processing eliminates wasted computational resources on static images while ensuring that motion content receives the necessary processing for smooth display.
3Speed
If display device is always driven at high frequency, then moving pictures can be displayed smoothly, but power consumption increases
Solution Approach 1:
The display device's operating frequency is dynamically adjusted based on the motion content of the input image. When motion is detected, the display device operates at high frequency to ensure smooth display. When the image is static, the display frequency is reduced, thereby lowering power consumption. This dynamic frequency adjustment resolves the contradiction between display quality and energy efficiency.
Data Source
AI summary
A technique for flexibly converting the number of frames of a displayed image on the basis of a motion in the image or information of an image signal such as a program genre is provided. An image processing apparatus includes an input unit to which an image signal having a predetermined frame rate is input, an information acquirer for acquiring information concerning the input image signal, and a frame rate converter for converting the frame rate of the input image signal and outputting a resultant signal. The frame rate converter conducts the frame rate conversion of the input image signal on the basis of the information (such as the motion in the image or the program genre) of the input image signal acquired by the information acquirer.