Video Output Apparatus Multi-Cropping Focus Control
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Solution Overview
Problem
Current video equipment struggles to quickly and accurately select and focus on a priority subject when changing cropping areas, leading to unstable focus states and increased user burden, especially when multiple subjects are present across different cropping areas.
Innovation Solution
A video output apparatus and method that includes a setting unit for multiple frames, a selection unit for choosing a subject, an output unit for partial video, and a control unit for corresponding controls, allowing for efficient selection and focus on the subject within the set frames, with features like display control and notification for user operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple cropping areas are set in video captured by a single image capturing unit, then the composition and angle of view can be changed, but it is impossible to focus on main subjects in all cropping areas unless they are at the same distance
Solution Approach 1:
The patent segments the video processing into multiple independent cropping areas (first cropping area, second cropping area, etc.), each with its own focus control parameters. This allows different focus distances to be set for different cropping areas simultaneously, resolving the contradiction between versatile cropping and reliable focus control.
2Reliability
If one priority area is selected from multiple cropping areas for focus control, then focus can be maintained, but when changing the priority area, the user burden increases and focus stability decreases
Solution Approach 1:
The system performs focus control automatically for each cropping area based on detected main subjects without requiring manual user intervention. The focus control unit independently adjusts focus for each cropping area, eliminating the need for users to manually change priority areas and reducing both user burden and focus instability.
3Adaptability or versatility
If the image capturing unit and switcher unit are separate units, then system flexibility increases, but it becomes difficult to perform operations sequentially and promptly
Solution Approach 1:
The patent merges the focus control functionality into the switcher unit, which now performs both cropping area selection and focus control for multiple cropping areas. This integration allows sequential operations to be performed promptly within a single unit while maintaining system flexibility through programmable control.
Data Source
AI summary
A video output apparatus comprises: a setting unit that is capable of setting a plurality of frames each indicative of partial video which is a part of input video; a selection unit that selects a subject according to an operation performed on the input video; an output unit that outputs video; and a control unit that performs control corresponding to the subject selected by the selection unit. In a case where the subject is selected under a state in which a plurality of frames are set, the output unit outputs partial video of a frame including the selected subject from among the plurality of set frames.