Focus Target Information for Rapid Focus Sweep
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Solution Overview
Problem
Traditional digital photography systems are limited in their ability to quickly and efficiently adjust focus, often resulting in noticeable delays and cumbersome processes.
Innovation Solution
A system and method for generating a focus sweep to produce a focus stack, where an image is sampled as image data, and focus is adjusted based on focus target information to capture multiple images at different focus points, which are then saved to an image stack.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If software solutions are used to send focus signals to adjust lens assembly, then focus can be achieved, but the process becomes cumbersome and time-consuming with noticeable delays
Solution Approach 1:
The patent pre-calculates and stores focus target information for multiple focus regions before actual image capture. When a user selects a focus region, the system immediately retrieves the pre-computed focus target information and sends the focus signal, eliminating the need for real-time software evaluation and significantly reducing focus adjustment time while maintaining precise focus control
2Ease of operation
If traditional software-based focus adjustment is used, then focus control is achieved, but the system complexity and processing overhead increase
Solution Approach 1:
The system pre-processes image data to identify multiple focus regions and calculates their corresponding focus target information in advance. This preliminary action stores the computationally intensive results in a readily accessible format, simplifying the actual focus control operation to a simple retrieval and signal transmission process, thereby reducing system complexity during operation while maintaining ease of use
Solution Approach 2:
The patent creates a simplified representation of focus information by storing focus target information as coordinate data or lookup tables rather than maintaining complex real-time processing algorithms. This copying approach allows the system to work with simplified data structures during operation, reducing computational complexity while preserving the ability to achieve precise focus control
Data Source
AI summary
A system, method, and computer program product are provided for generating a focus sweep to produce a focus stack. In use, an image is sampled as image data. Next, a first focus region is identified and a second focus region is identified. Next, first focus target information corresponding to the first focus region is determined and second focus target information corresponding to the second focus region is determined. Further, a focus is adjusted, based on the first focus target information and at least one first image is captured based on the first focus target information. Additionally, the focus is adjusted, based on the second focus target information and at least one second image is captured based on the second focus target information. Lastly, the at least one first image and the at least one second image are saved to an image stack. Additional systems, methods, and computer program products are also presented.