Dynamic Focus Frame Adaptation for Object Visibility

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Solution Overview

Problem

Existing techniques for displaying an object region in images, such as those used in digital cameras, face difficulties in enhancing visibility, especially when the object is not a person or is moving, leading to confusion between focused and unfocused areas due to the excessive use of rectangular focus detection frames.

Innovation Solution

An electronic apparatus and method that dynamically adjust the display of the object region by using a first display appearance with an outer peripheral frame when the object is stationary or moving significantly, and a second display appearance with a grid shape when the object is not moving, to improve visibility and distinguish focused areas effectively.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If rectangular focus detection frames are displayed to indicate object regions, then the object region can be identified, but the visibility of the object deteriorates when many frames are displayed simultaneously

Engineering Contradiction:
Improveobject region identificationVSAvoidobject visibility
Core Design Contradiction:
Loss of informationVSIllumination intensity

Solution Approach 1:

The display appearance is segmented into two distinct types: a first display appearance with an outer peripheral frame for stationary objects, and a second display appearance with a grid shape for moving objects. This segmentation allows the system to apply the appropriate display style based on object movement state, resolving the contradiction between identifying object regions and maintaining object visibility.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The display appearance is made dynamic by automatically switching between the first display appearance (outer peripheral frame) and the second display appearance (grid shape) based on the detected movement state of the object. When the object is stationary, the outer peripheral frame is used; when the object is moving, the grid shape is used. This dynamic adaptation resolves the visibility issue across different object states.

Inventive Principle:
Principle #15Dynamics

2Loss of information

If rectangular focus detection frames are used to indicate focused areas, then focus information can be provided, but user confusion increases when objects are moving

Engineering Contradiction:
Improvefocus informationVSAvoiduser recognition
Core Design Contradiction:
Loss of informationVSEase of operation

Solution Approach 1:

The system dynamically adjusts the display appearance based on the movement state of the object. When the object is moving, the second display appearance with grid shape is employed, which provides clearer focus information and reduces user confusion. When the object is stationary, the first display appearance with outer peripheral frame is used. This dynamic switching improves ease of operation across different scenarios.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

Different display qualities are applied locally based on the object's movement state. The grid shape display appearance is specifically applied to moving objects to enhance focus recognition, while the outer peripheral frame is applied to stationary objects. This localized adaptation of display quality improves user recognition without compromising focus information.

Inventive Principle:
Principle #3Local quality

Data Source

PatentEP3879813B1Electronic apparatus and control method thereof
Publication Date: 2023.10.25 CANON KK
  • EP3879813B1 patent drawingFigure 1A~1B
  • EP3879813B1 patent drawingFigure 2
  • EP3879813B1 patent drawingFigure 3A

AI summary

An electronic apparatus, when an object included in a captured image is not moving, indicates a region of the captured image corresponding to the object in a first display appearance, and when the object is moving in the captured image, indicates the region in a second display appearance that is at least different in shape from the first display appearance.