Image Reproducing Apparatus Virtual Diaphragm Reconstruction
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Solution Overview
Problem
Existing image pickup apparatuses face challenges in quickly displaying refocused images, as they require object extraction and phase difference calculations between multiple viewpoints, leading to high computational costs.
Innovation Solution
An image recording and reproducing apparatus that obtains and records photographing information as metadata, allowing for rapid reconstruction and editing of refocused images by using generated parameters to reconstruct and edit the refocused images.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If object extraction and phase difference calculation are performed to determine refocus plane, then refocus image can be generated, but arithmetic cost increases
Solution Approach 1:
The patent stores photographing information (including iris value and focus position) as metadata at the time of image capture. This preliminary action eliminates the need for subsequent phase difference calculations and object extraction to determine refocus parameters, significantly reducing arithmetic cost while maintaining accurate refocus plane determination.
2Measurement precision
If refocus image is displayed after object extraction processing, then desired refocus image can be obtained, but processing time increases
Solution Approach 1:
The patent pre-captures and stores photographing information (iris value, focus position, shooting distance) as metadata during image capture. This allows the reproducing apparatus to directly generate refocus images using stored parameters without performing time-consuming object extraction and phase difference calculations, thereby reducing processing time while maintaining image quality.
3Measurement precision
If phase difference calculation is performed between multiple images, then refocus plane can be determined, but computational complexity increases
Solution Approach 1:
The patent stores photographing information including focus position and iris value as metadata at capture time. This eliminates the need for complex phase difference calculations between multiple images, as the refocus plane can be directly determined from the stored focus position information, significantly reducing processing complexity.
4Productivity
If photographing information is stored as metadata, then rapid refocus image reconstruction is enabled, but data storage requirements increase
Solution Approach 1:
The patent extracts and stores only the essential photographing information (iris value, focus position, shooting distance) as metadata, rather than storing complete image data or all possible parameters. This selective extraction enables rapid refocus image reconstruction while minimizing the volume of stored metadata.
Data Source
AI summary
An image reproducing includes a memory that stores instructions, and one or more processors that execute the instructions to cause the image reproducing apparatus to function as a generation unit configured to generate an image corresponding to a virtual diaphragm value by reconstructing image data, a setting unit configured to set the virtual diaphragm value, and a display control unit configured to display, on a display, the image corresponding to the virtual diaphragm value generated by the generation unit. The display control unit displays the image corresponding to the virtual diaphragm value and a graphical user interface for indicating the virtual diaphragm value of the image set by the setting unit. In addition, the display control unit displays a plurality of images generated by the generation unit together, and the plurality of images respectively correspond to a plurality of virtual diaphragm values.