Image Sensing Apparatus Assist Image Display Overlap Control
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Solution Overview
Problem
Conventional image sensing apparatuses lack effective display resolution for strict exposure control and focus adjustment, often displaying assist images in areas that may overlap with object features, such as faces, leading to inadequate user feedback.
Innovation Solution
An image sensing apparatus with detection units to differentiate between luminance and object areas, adjusting the display method of assist images like zebra patterns or peaking displays based on overlap with object areas, ensuring accurate feedback for exposure and focus adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If an assist image is displayed in an image area satisfying a predetermined luminance condition, then exposure control assistance is improved, but the assist image may overlap with object areas (such as faces) causing inadequate user feedback
Solution Approach 1:
The image area is segmented into multiple regions: a first image area where assist images are displayed and a second image area where object features are preserved. This segmentation allows the system to provide exposure control assistance while preserving important object information by preventing assist image display in the second area.
Solution Approach 2:
Different display qualities are applied to different regions of the image. The first image area receives assist image overlay for exposure control, while the second image area maintains original image quality without assist image interference. This local differentiation ensures that object features are not degraded while still providing necessary exposure guidance.
2Device complexity
If the display resolution of the display unit is small, then the apparatus structure remains simple, but strict exposure control and focus adjustment become inadequate
Solution Approach 1:
An assist image is introduced as an intermediary element that provides additional exposure control information overlaid on the sensed image. This intermediary display layer enhances the functional resolution for exposure control without requiring a physical upgrade to the display unit's resolution, thereby maintaining simple apparatus structure while improving measurement precision.
3Measurement precision
If an assist image is displayed to assist focus adjustment, then focus control assistance is improved, but the assist image may overlap with object areas causing inadequate user feedback
Solution Approach 1:
The image area is segmented into multiple regions: a first image area where assist images are displayed and a second image area where object features are preserved. This segmentation allows the system to provide exposure control assistance while preserving important object information by preventing assist image display in the second area.
Solution Approach 2:
Different display qualities are applied to different regions of the image. The first image area receives assist image overlay for exposure control, while the second image area maintains original image quality without assist image interference. This local differentiation ensures that object features are not degraded while still providing necessary exposure guidance.
Data Source
AI summary
An image sensing apparatus includes a display control unit which controls an image display unit to display an image sensed by an image input unit. The image sensing apparatus also includes a signal strength detection unit which detects, from a sensed image, a luminance area formed from pixels satisfying a predetermined luminance condition, and a special area detection unit which detects, from a sensed image, an object area having a predetermined feature. The display control unit controls the image display unit to display an assist image representing the luminance area, so as to be superimposed on a sensed image. The display control unit changes the assist image display method between a case in which the luminance area and object area overlap each other and a case in which they do not overlap each other.