Image Processing Apparatus Region-Specific Motion Blur Control
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Solution Overview
Problem
Existing digital camera technologies do not effectively capture images of subjects playing sports that involve swinging movements, as they fail to balance reducing motion blur in the face region with creating motion blur in swinging regions for a dynamic impression.
Innovation Solution
An image processing apparatus that automatically determines image capturing parameters, including shutter speed, by analyzing motion in face and swinging regions, and estimating the moving direction of swinging objects, while considering varying swinging speeds and directions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a high shutter speed is automatically set to reduce motion blur, then the face region is captured clearly, but the swinging region loses its dynamic motion blur
Solution Approach 1:
The patent applies different quality requirements to different regions of the image. The face region requires sharpness and minimal blur, while the swinging region (club or bat) is allowed to have motion blur to convey dynamic movement. This is achieved by detecting the swinging region and adjusting capture parameters specifically for that area.
Solution Approach 2:
The patent dynamically adjusts the shutter speed based on real-time detection of the swinging motion. By continuously monitoring the swinging region and calculating its speed and direction, the system adapts the capture parameters mid-action to optimize both face clarity and swinging region dynamics.
2Object-generated harmful factors
If a low shutter speed is used to capture motion blur in swinging region, then dynamic impression is enhanced, but the face region becomes blurred
Solution Approach 1:
The system applies different blur tolerance levels to different regions. The face region is protected from blur through precise subject tracking and selective parameter adjustment, while the swinging region is intentionally allowed to blur to convey motion dynamics.
Solution Approach 2:
The system uses continuous feedback from motion detection algorithms to monitor the swinging region's movement. Based on this feedback, it dynamically adjusts the shutter speed to maintain the optimal balance between face sharpness and swinging region dynamics throughout the capture sequence.
3Measurement precision
If different capture parameters are set for different regions, then both face clarity and swinging dynamics are achieved, but the device complexity increases
Solution Approach 1:
The patent divides the image into distinct functional regions: the face region requiring sharpness and the swinging region allowing motion blur. By segmenting the subject detection and applying region-specific parameters, the system manages complexity through structured organization rather than holistic complexity.
Solution Approach 2:
The system uses the subject's own motion characteristics (detected through image analysis) to automatically determine the optimal capture parameters. The motion detection algorithms analyze the swinging region's speed and direction, and the face tracking system monitors subject position, enabling self-adjustment without external intervention.
Data Source
AI summary
An image processing apparatus includes an acquisition unit configured to acquire an image, a subject detection unit configured to detect a subject from the image, a motion amount detection unit configured to detect a motion amount of a first region of the subject and a motion amount of a second region of the subject, the second region being different from the first region, and an image capturing parameter determination unit configured to determine an image capturing parameter, wherein the image capturing parameter determination unit refers to the motion amount of the first region and the motion amount of the second region and determines the image capturing parameter so that a blur amount of the first region is less than a first standard and a blur amount of the second region is greater than a second standard.