Focus Guide Overlay for Real-Time Object Tracking
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Solution Overview
Problem
Conventional methods for confirming focus position in digital cameras and video cameras are hindered by slow image processing, making it difficult to follow object movement and focus detection due to low display resolution and small screen size.
Innovation Solution
An image capturing apparatus comprising a detector for focus adjustment, a processor to generate a composite image with a guide indicating the focus position, and a controller to update display information for real-time processing, enabling accelerated display of focus guides that follow object movement and focus detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If conventional image processing methods are used to display focus guides, then the display can show focus position information, but the processing speed is slow and cannot follow object movement or focus detection in real-time
Solution Approach 1:
The patent divides the image processing into separate stages: focus detection is performed on the entire image to identify the focus position, while the guide display is generated by overlaying a simplified graphical element (frame or marker) at the detected position. This segmentation allows fast focus detection without requiring complex full-image processing for the guide display, thereby improving processing speed while maintaining accurate focus position tracking.
2Measurement precision
If the display resolution is increased to improve focus position confirmation, then the guide becomes more precise, but the processing time increases and real-time display is compromised
Solution Approach 1:
Instead of processing and displaying high-resolution focus information directly, the patent creates a simplified graphical copy (such as a frame or marker overlay) that represents the focus position. This copy contains only the essential information needed for focus confirmation, allowing precise focus position indication without the computational burden of processing full-resolution image data, thus reducing processing time while maintaining precision.
3Productivity
If complex image processing is performed to generate detailed focus guides, then the guide information is comprehensive, but the display cannot follow object movement or focus detection changes
Solution Approach 1:
The patent extracts only the essential focus position information from the complex image data and uses this extracted information to generate a simplified guide display. By taking out only the necessary coordinate information rather than processing and displaying complex focus metrics, the system achieves fast display updates that can follow object movement while retaining the critical focus position information needed for accurate focus confirmation.
Data Source
AI summary
An image capturing apparatus, comprises a detector configured to detect a focus adjustment position in an image, a processor configured to generate a composite image in which a guide indicating the detected position is superimposed on the image, a display configured to display the composite image generated by the processor, and a controller configured to update, in accordance with information of the position detected by the detector, display information used for processing for generating the composite image.