Noise Reduction Parameter Conversion Between Capture and Playback Methods
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Solution Overview
Problem
Noise reduction processing parameters recorded by image capturing apparatuses cannot be used when played back using different noise reduction processing methods, such as frame reference-based methods versus spatial filter-based methods, leading to incompatibility between the image capturing device and playback applications.
Innovation Solution
An image processing apparatus and method that obtain and generate noise reduction information for one noise reduction method, allowing conversion to another method, enabling noise reduction processing using different methods between image capture and playback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If noise reduction processing parameters are recorded using a specific noise reduction method (e.g., frame reference-based), then the parameters can be used by the image capturing apparatus, but they cannot be used by external playback applications that employ different noise reduction methods (e.g., spatial filter-based)
Solution Approach 1:
The patent converts noise reduction parameters from one method (frame reference-based) to another method (spatial filter-based) by transforming the parameter values and relationships. This allows parameters recorded with one noise reduction algorithm to be effectively used with a different algorithm, resolving the incompatibility issue between image capturing apparatus and playback applications
Solution Approach 2:
The patent introduces an intermediate conversion process that acts as a mediator between the image capturing apparatus and playback applications. This conversion unit translates parameters between different noise reduction methods, enabling seamless interoperability without requiring both systems to use the same noise reduction algorithm
2Manufacturing precision
If different noise reduction processing methods are used between image capturing and playback, then each method can optimize for its specific application, but the recorded parameters cannot be reused across different methods
Solution Approach 1:
The patent enables parameter transformation between different noise reduction methods while preserving the essential noise reduction characteristics. By mathematically converting parameters from frame reference-based to spatial filter-based methods (or vice versa), the system maintains processing quality across different algorithms without losing parameter reusability
Data Source
AI summary
There is provided an image processing apparatus. An obtaining unit obtains an image, and first NR information defining noise reduction processing using a first noise reduction processing method which an external apparatus can apply to the image. A generating unit generates, on the basis of the first NR information, second NR information defining noise reduction processing using a second noise reduction processing method which is different from the first noise reduction processing method. A noise reducing unit applies the noise reduction processing using the second noise reduction processing method to the image in accordance with the second NR information.