Image Sensing Apparatus Slow Liveview Timing Control
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Solution Overview
Problem
Existing image sensing apparatuses struggle to accurately capture still images of fast-moving objects due to timing delays and missed shots during slow-motion playback, as they require precise user operation and often fail to include the desired image frame in the generated movie data.
Innovation Solution
An image sensing apparatus with a slow liveview mode that allows users to adjust the capturing start timing of still image data by setting conditions such as 'manual', 'move in', 'move out', 'object stops', 'object smiles', and 'panning', which enables continuous AF operation and automatic focus on moving objects, ensuring the desired frame is captured without user timing errors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the user presses the still image recording button with a delay of the I-picture increasing period or more from the timing to shoot image data the user wants, then the user can operate without precise timing, but the generated movie data does not contain the image he wants
Solution Approach 1:
The system performs preliminary actions by increasing the number of I-pictures before the user presses the still image recording button. This creates a buffer of independently decodable frames that allows the user to operate without precise timing while ensuring the desired image is captured in the movie data
Solution Approach 2:
The patent introduces an intermediary mechanism (I-picture increasing period) between the user's shooting intent and the actual capture. This intermediary buffer of frames acts as a mediator that decouples the user operation from the precise capture timing, allowing delayed operation while maintaining capture reliability
2Duration of action of moving object
If the number of I-pictures is increased before the user presses the still image recording button, then movie data can be formed for slow-motion playback, but the capturing start timing cannot be adjusted to ensure the desired frame is included
Solution Approach 1:
The system dynamically adjusts the capturing start timing based on detected object motion states. By making the start timing adaptive rather than fixed, the system can ensure the desired frame is included while maintaining the extended duration needed for slow-motion playback
Solution Approach 2:
The patent implements feedback mechanisms that detect object motion states (such as when an object enters the frame, stops, or changes position) and use this feedback to automatically adjust the capturing start timing. This ensures precise timing alignment with the desired moment while maintaining adequate duration for slow-motion effects
Data Source
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AI summary
An image sensing apparatus according to this invention includes an image sensing unit (11 - 13) which sequentially generates still image data, a holding unit (14) which holds a plurality of still image data, a display unit (15) which displays the still image data, a setting unit (19) which sets a predetermined state as the start timing of shooting by the image sensing unit (11 - 13), a determination unit (16 - 18) which determines whether the predetermined state has been obtained, a shooting control unit (16 - 18) which causes the image sensing unit (11 - 13) to start shooting when the determination unit (16 - 18) determines that the predetermined state has been obtained, a display control unit (16- 18) which causes the display unit (15) to sequentially display, at a display speed lower than an actual time, the still image data, a selection unit (19) which selects one of a plurality of image data displayed on the display unit (15), and a recording unit (29) which records the selected image data.