Depth-Aware Imaging Focus Control for User-Selected Subjects
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing imaging devices fail to accurately perform focus control in accordance with the user's intended subject, as they rely on automatic determination without considering manual input.
Innovation Solution
The imaging device incorporates a system that integrates manual focus control with autofocus, allowing users to adjust focus position through a focus ring, and uses depth information and user operations to dynamically select and change focus targets based on user intent.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If automatic focus control is used to determine the main subject, then focus control can be performed automatically, but the focus control may not align with the user's intended subject
Solution Approach 1:
The system provides feedback to the user by displaying the detected main subject on the screen and allows the user to provide correction input through touch operations. This feedback loop enables the system to adjust its automatic focus control based on user intent, resolving the contradiction between automation and accuracy.
Solution Approach 2:
The system introduces an intermediary step where the user can touch or drag the displayed main subject to indicate the intended focus target. This intermediary interaction mediates between the automatic detection system and the final focus control, ensuring both automation efficiency and user intent accuracy.
2Measurement precision
If manual focus control is used to adjust focus position, then user intent can be reflected, but the operation becomes more complex and time-consuming
Solution Approach 1:
The system displays a visual copy (frame) of the detected main subject on the screen, allowing the user to interact with this visual representation rather than directly controlling complex focus mechanisms. This simplifies the operation while maintaining accuracy, as users can simply touch or drag the displayed frame to indicate their intended focus target.
3Measurement precision
If the focus control target is changed frequently to match user intent, then focus accuracy improves, but the system response time and complexity increase
Solution Approach 1:
The system dynamically adjusts the focus control target based on real-time user input through touch operations. The main subject detection and focus target selection are made dynamic rather than static, allowing the system to adapt to user intent changes without requiring complex pre-programming or multiple fixed modes.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
An imaging device according to the present technology includes a user operation detection unit that detects an operation of a user for focus control, a focus position movement detection unit that detects movement of a focus position based on the operation of the user detected by the user operation detection unit, a depth information detection unit that detects depth information in a focus control target area, and a focus control unit that sets a target focus position on the basis of the movement of the focus position and the depth information. Thus, a technology for executing focus control more in accordance with a user's intention is proposed.