Stereoscopic Display Control for Autofocus Discomfort Reduction
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Solution Overview
Problem
Users experience discomfort when autofocus is active in imaging devices, particularly when stereoscopic images are displayed, as unfocused images can be difficult to observe and may cause discomfort.
Innovation Solution
An information processing apparatus and method that controls display based on a detection value indicating the focus state of a lens from a stereoscopic imaging unit, adjusting parallax reduction to alleviate user discomfort during autofocus operations by synchronizing image signals for the left and right eyes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If autofocus function is activated in stereoscopic imaging device, then focusing accuracy is improved, but user comfort during observation deteriorates due to unfocused images
Solution Approach 1:
The system applies preliminary anti-action by detecting autofocus operation status and proactively adjusting display parameters (parallax reduction amount, image selection) before the user experiences discomfort. When autofocus is detected as operating, the system preemptively modifies the displayed image to prevent the harmful effect of unfocused stereoscopic images, rather than waiting for user feedback.
Solution Approach 2:
The system implements dynamics by making the display characteristics dynamically adjustable based on autofocus operation status. The control unit changes display parameters (such as parallax reduction amount and image selection) in real-time according to whether autofocus is operating, allowing the system to adapt its behavior to current operational conditions and eliminate user discomfort during autofocus.
2Object-affected harmful factors
If parallax reduction is increased during autofocus, then user comfort is improved, but stereoscopic effect deteriorates
Solution Approach 1:
The system uses dynamics by making parallax reduction amount dynamically controllable based on autofocus operation status. During autofocus operation, the control unit increases parallax reduction to improve comfort, while during normal operation, it reduces or eliminates parallax reduction to maintain strong stereoscopic effect. This dynamic adjustment allows the system to optimize both comfort and stereoscopic effect at different times.
Solution Approach 2:
The system applies parameter changes by modifying display parameters (parallax reduction amount, image selection) based on autofocus detection values. When autofocus is operating, the system changes the parallax reduction parameter to a higher value to reduce discomfort, and when autofocus is complete, it returns to normal parameter settings to restore full stereoscopic effect.
3Measurement precision
If real-time focus detection is implemented, then display control accuracy is improved, but system complexity increases
Solution Approach 1:
The control unit implements universality by integrating multiple functions into a single component: it detects autofocus operation status, processes focus detection values, determines optimal display parameters, and controls the display output. This multi-functional approach achieves accurate real-time focus detection and display control without requiring separate dedicated components for each function, thereby limiting the increase in system complexity.
Data Source
AI summary
There is provided an information processing apparatus including a control unit that controls display on the basis of a detection value indicating a focus state of a lens acquired from a stereoscopic imaging unit, and a captured image signal for a left eye and a captured image signal for a right eye acquired from the imaging unit.