Image Synthesizing System for Depth of Field Control
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Solution Overview
Problem
Conventional image capturing methods require frequent adjustments of the aperture to achieve desired depths of field, causing user inconvenience and resulting in shallow DOF effects that are not inherently real.
Innovation Solution
An image synthesizing system and method that captures images using two different apertures, corresponding to distinct depths of field, and performs image processing to generate a synthesized image with a depth of field between the two, using interpolation operations on pixels from the captured images.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the aperture is adjusted frequently to achieve different depths of field, then the desired depth of field effect is achieved, but the user convenience deteriorates
Solution Approach 1:
The system captures multiple images at different apertures in advance before the user needs them. By pre-capturing images with different depth of field characteristics, the system eliminates the need for users to manually adjust the aperture repeatedly, while still providing precise depth of field control in the final synthesized image.
Solution Approach 2:
The system creates a synthesized image that copies or combines the depth of field characteristics from multiple captured images. Instead of physically adjusting the aperture, the system digitally synthesizes the desired depth of field effect by combining information from images captured at different apertures, maintaining precision without requiring manual intervention.
2Ease of operation
If software is used to create shallow depth of field effect in post-production, then the operation complexity is reduced, but the realism of the depth of field effect deteriorates
Solution Approach 1:
The system captures images with different actual depth of field characteristics in advance, preserving the authentic optical properties of each capture. This preliminary capture of real optical data ensures that when images are combined, the resulting depth of field effect maintains physical realism rather than being artificially simulated.
Solution Approach 2:
The system changes the aperture parameter during image capture to obtain images with different depth of field characteristics. By varying this physical parameter during capture rather than attempting to simulate it later, the system preserves the authentic optical properties that give depth of field its realistic appearance.
Data Source
AI summary
An image synthesizing method and system include capturing a first image using a first aperture, which corresponds to a first depth of field (DOF); capturing a second image using a second aperture, which corresponds to a second DOF and is different from the first aperture; and receiving the first image and the second image, on which an image processing is performed to obtain a synthesized image, which has a DOF being between the first DOF and the second DOF.