Image Evaluation Apparatus Camera Shake Direction Out-of-Focus Blurring
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Solution Overview
Problem
Existing methods for evaluating image information, such as camera shake and out-of-focus blurring, require separate processing steps, leading to increased processing time and difficulty in distinguishing between the two causes of blurring in a blurred image.
Innovation Solution
Performing camera shake evaluation to determine the camera shake direction and using this information for out-of-focus evaluation, allowing for shared processing and reduced calculation load by evaluating blurring in directions perpendicular to the camera shake direction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate processing is performed for camera shake evaluation and out-of-focus evaluation, then each evaluation can be conducted independently, but the processing time increases
Solution Approach 1:
The patent merges camera shake evaluation and out-of-focus evaluation into a unified processing framework. The evaluation unit performs both evaluations by sharing common processing steps, particularly using the same image information and evaluation algorithms for both types of blurring detection, thereby reducing redundant calculations and processing time while maintaining independent evaluation capabilities
Solution Approach 2:
The evaluation unit is designed with multi-functionality to handle both camera shake evaluation and out-of-focus evaluation using a single processing architecture. By making the evaluation unit universal, it can switch between or simultaneously perform both evaluation types without requiring separate dedicated processing systems, thus reducing overall processing time while ensuring reliable evaluation of both blurring causes
2Measurement precision
If completely separate processing is performed for camera shake and out-of-focus evaluation, then each evaluation is independent, but the overall processing becomes more complex and time-consuming
Solution Approach 1:
The patent combines camera shake evaluation and out-of-focus evaluation into a single integrated processing unit. By merging the evaluation processes and sharing common computational steps, the system reduces processing complexity while maintaining the precision needed to distinguish between different types of blurring through unified image information analysis
Data Source
AI summary
An evaluating method of image information acquires image information, performs camera shake evaluation of the image information by determining a camera shake direction on the basis of the image information, and performs out-of-focus evaluation of the image information by using information concerning a camera shake direction determined in the camera shake evaluation.