Image Display Controller Frame Visibility Overlap

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Solution Overview

Problem

Conventional image pickup apparatuses with face and human body detection sections face issues with the visibility of face and human body display frames, particularly when feature values change, leading to overlapping frames that obscure the object and reduce visibility.

Innovation Solution

An image display controller that detects and identifies specific areas within images, generates and corrects display frames for both face and human body areas, ensuring they are displayed stably and correctly on the screen, even with changes in feature values or zoom levels.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If face display frame and human body display frame are displayed independently and overlapped, then both areas can be detected and displayed, but the visibility of the frames and object lowers

Engineering Contradiction:

Improvedetection accuracyVSAvoidvisibility reduction

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent extracts the face display frame from the human body display frame by detecting overlap between the two frames. When overlap is detected, the face display frame is selectively hidden or removed from display, allowing the human body display frame to remain visible without obstruction, thus resolving the visibility problem while maintaining detection accuracy

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent changes the display attributes of the face display frame based on its positional relationship with the human body display frame. When the face frame overlaps with the human body frame, its display attributes are modified (such as transparency or color intensity), allowing both frames to be displayed simultaneously while maintaining visibility of the underlying object

Inventive Principle:

Principle #32Color changes

2Adaptability or versatility

If zoom magnification is changed, then the field of view changes, but the frames and object become hidden and visibility lowers

Engineering Contradiction:

Improvezoom capabilityVSAvoidframe obscuration

Core Design Contradiction:

Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The patent dynamically adjusts the display parameters of the frames based on the current zoom magnification level. As zoom magnification changes, the system recalculates the optimal frame size, position, and display attributes to ensure frames remain visible and informative without obscuring the photographed object, adapting to different viewing conditions in real-time

Inventive Principle:

Principle #15Dynamics

3Measurement precision

If face display frame is displayed included in human body display frame area, then face area detection is achieved, but the visibility of human body display frame lowers

Engineering Contradiction:

Improveface area detectionVSAvoidhuman body frame visibility

Core Design Contradiction:

Measurement precisionVSObject-affected harmful factors

Solution Approach 1:

Inventive Principle:

Principle #2Taking out (Extraction)

Data Source

PatentUS9106834B2Image display controller capable of providing excellent visibility of display area frames, image pickup apparatus, method of controlling the image display controller, and storage medium

Publication Date: 2015.08.11 CANON KK

AI summary

An image display controller capable of providing excellent visibility of a face display frame and a human display frame associated with an object. The image display controller detects an object in an image, and identifies a face area of the object distinguishably from a human body area exclusive of the face area. Further, the image display controller generates a face display frame for enclosing the face area and a human body display frame for enclosing the human body area. Then, the image display controller displays the face display frame and the human body display frame on a screen together with the image.