Integrated Temporal Noise Reduction and Motion Enhancement Circuit
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Solution Overview
Problem
Existing image processing systems require separate hardware for temporal noise reduction and motion enhancement, leading to high costs and increased hardware requirements when these operations are performed separately.
Innovation Solution
A device and method that integrates a temporal noise reducing circuit and a motion enhancing circuit within the same system, sharing a storage device to reduce temporal noise and enhance motion of a target frame, using a temporal noise reducing circuit to generate a filtered signal and a motion enhancing circuit to generate a motion-enhanced signal based on the filtered signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate hardware is used for temporal noise reduction and motion enhancement, then each operation can be performed independently, but hardware cost and complexity increase
Solution Approach 1:
The patent combines the temporal noise reduction circuit and motion enhancement circuit into a single integrated device that shares a common storage device. The temporal noise reduction circuit processes the current frame using the filtered signal from the previous frame, and the motion enhancement circuit uses the same filtered signals to enhance motion, allowing both operations to be performed in the same hardware system rather than requiring separate independent hardware systems.
Solution Approach 2:
The storage device serves multiple functions: it stores the filtered signal from the previous frame for temporal noise reduction, and simultaneously provides the same filtered signal to the motion enhancement circuit for motion enhancement operations. This multi-functional use of the storage device eliminates the need for separate hardware systems while maintaining the capability to perform both operations.
2Ease of manufacture
If separate hardware is used for temporal noise reduction and motion enhancement, then each circuit can be optimized independently, but hardware requirements and cost increase
Solution Approach 1:
The patent merges the temporal noise reduction circuit and motion enhancement circuit into one integrated system where both circuits share the same storage device. This allows the system to maintain independent optimization capabilities for each circuit while reducing the total quantity of hardware components needed, as the storage device is shared between both functions.
3Ease of operation
If temporal noise reduction and motion enhancement are performed separately, then processing steps are clear and simple, but processing efficiency decreases
Solution Approach 1:
The patent enables continuous processing by having the temporal noise reduction circuit and motion enhancement circuit operate in sequence within the same hardware system. The filtered signal generated by the temporal noise reduction circuit is immediately available to the motion enhancement circuit through the shared storage device, eliminating idle time and maintaining continuous useful action throughout the processing pipeline.
Data Source
AI summary
The present invention provides an apparatus and corresponding method for reducing temporal noise of a target frame and enhancing the motion of the target frame. The apparatus includes a storage device, a temporal noise reducing circuit, and a motion enhancing circuit. The storage device stores a first filtered signal of a previous frame. The previous frame is previous to the target frame. The temporal noise reducing circuit reduces temporal noise of the target frame according to the first filtered signal and an image signal of the target frame. The temporal noise reducing circuit then generates a second filtered signal of the target frame, which is stored in the storage device. The motion enhancing circuit enhances the motion of the target frame according to the first and the second filtered signals, and generates a motion-enhanced signal of the target frame.