Video Focus Control via Position and Timing Data
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Solution Overview
Problem
Existing video processing methods require manual focus adjustment when a subject's position differs from a prestored preset position, making the process cumbersome and inefficient for users.
Innovation Solution
A video processing apparatus that includes an input unit for instructing a focus position, an acquisition unit to gather position and time information, and a control unit to automatically adjust the focus based on the instructed position and timing, allowing for precise focus control on a subject's new position during subsequent shootings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If a focus position is prestored as a preset position and focus is put on the stored preset position according to a predetermined preset reproduction instruction, then the focus control process is simplified and automated, but the system cannot adapt to subjects at positions different from the prestored preset position, requiring manual focus adjustment
Solution Approach 1:
The system performs preliminary shooting to capture the subject's actual position and the timing when focus should be applied. This preliminary action stores the subject position and timing information, which are then used in subsequent shootings to automatically control focus without manual intervention, resolving the contradiction between automation and adaptability
Solution Approach 2:
The system uses feedback from the preliminary shooting results (subject position and timing) to adjust and control focus in subsequent shootings. The stored position and timing information from the first shooting serve as feedback that guides the automatic focus control in the second shooting, enabling the system to adapt to different subject positions while maintaining automation
2Adaptability or versatility
If manual focus adjustment is performed after preset reproduction to accommodate subjects at different positions, then the system maintains flexibility to handle various subject positions, but the user burden increases and the process becomes cumbersome
Solution Approach 1:
The system performs self-service by automatically acquiring subject position and timing information from preliminary shooting and using this information to control focus in subsequent shootings without requiring manual user intervention. The system serves itself by storing and applying the learned position and timing data, eliminating the need for cumbersome manual focus adjustment while maintaining adaptability
3Productivity
If focus position and timing information from preliminary shooting is stored and applied to subsequent shootings, then automatic focus control is achieved without manual operation, but the system requires additional processing to store and retrieve position and timing data
Solution Approach 1:
The system performs preliminary shooting to acquire and store subject position and timing information before actual production shooting. This preliminary action prepares the necessary data in advance, allowing subsequent shootings to use this stored information for automatic focus control, thereby improving productivity while managing complexity through advance preparation
Solution Approach 2:
The system creates a copy of the subject position and timing information from the preliminary shooting and stores it for use in subsequent shootings. This copying mechanism allows the system to reuse the acquired data without requiring complex real-time processing during actual shooting, improving efficiency while keeping the processing complexity manageable
Data Source
AI summary
A video processing apparatus includes an input unit configured to input information instructing a focus position, in a first shooting, an acquisition unit configured, in a case in which the information instructing a focus position has been input by the input unit, to acquire position information indicating the instructed focus position, and time information indicating a time at which the focus position has been instructed, and a control unit configured to control a focus position in a second shooting based on the position information and the time information that have been acquired by the acquisition unit.