Image Processing Apparatus for Motion Picture Blurring Detection
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Solution Overview
Problem
Conventional image processing systems cannot effectively judge image blurring for each frame during motion picture photography, especially when subjects move from near to far positions, leading to frames with blurring issues due to rapid focus lens movements, which are not adequately addressed by existing methods.
Innovation Solution
An image processing apparatus that includes an input unit for motion picture signals and control information, a judging unit to assess the in-focus degree based on focus lens control information, and an output unit that adjusts image output based on the judgment, allowing users to avoid printing or editing frames with blurring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the focus lens is rapidly moved to track subjects moving from near to far positions, then the subject tracking capability is improved, but image blurring occurs due to shallow depth of field
Solution Approach 1:
The system performs preliminary judgment on focus lens movement speed and direction before the actual photographing occurs. By detecting the movement state of the focus lens in advance and storing this information along with the motion picture, the system can identify frames that are likely to be blurred due to rapid focus changes, allowing users to avoid using these frames for printing or editing.
2Device complexity
If conventional methods observe changing for a predetermined period to judge image shaking, then processing simplicity is maintained, but the ability to judge image blurring for every frame is lost
Solution Approach 1:
The system uses control information about focus lens movement as an intermediary to judge image blurring. Instead of directly analyzing image sharpness for every frame, the system uses the stored focus lens movement information as a mediator to infer which frames are likely to be blurred, achieving frame-by-frame judgment without complex image analysis processing.
3Measurement precision
If focus lens control information is stored and used to judge blurring, then the ability to identify blurred frames is improved, but device complexity increases
Solution Approach 1:
The control information about focus lens movement serves multiple functions: it is used to judge image blurring, to identify frames suitable for printing or editing, and to provide metadata about the photographing conditions. This multi-functionality reduces the need for separate dedicated systems, thereby limiting the increase in device complexity while improving blurring detection accuracy.
Data Source
AI summary
Provided is an image processing apparatus that judges an in-focus degree of a motion picture related to a motion picture signal based on control information inputted along with the motion picture signal and related to an operation of photographing the motion picture signal. The image processing apparatus then changes a form in which an image related to the motion picture signal is displayed or printed, in accordance with a result of the judgment.