Photographing Apparatus Detection Condition Setting

Solution Overview

Problem

Conventional face detection functions in photographing apparatuses, such as digital cameras, face challenges in achieving a balance between detection rate and speed, particularly in varying photographing environments, leading to poor accuracy and increased erroneous detection due to wide detection ranges and varying conditions like orientation and size.

Innovation Solution

A photographing apparatus equipped with an imaging unit, an object detection unit, and a detection condition setting unit that allows users to arbitrarily set detection conditions for object detection, including options for detection rate-priority and detection speed-priority, with the ability to limit parameters like orientation, size, and detection area, and display these conditions visually for confirmation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the detection range is widened to detect faces in various different conditions (orientations, sizes), then the detection rate improves, but the detection time increases and erroneous detection rate increases

Engineering Contradiction:

Improvedetection rateVSAvoiddetection time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The patent applies dynamics by making the detection range and detection conditions adjustable rather than fixed. The control unit dynamically changes the detection parameters based on user-selected priorities (detection rate priority or detection speed priority), allowing the system to adapt between wide-range detection and fast detection modes as needed

Inventive Principle:

Principle #15Dynamics

2Reliability

If the detection range is widened to detect faces in various different conditions (orientations, sizes), then the detection rate improves, but the erroneous detection rate increases

Engineering Contradiction:

Improvedetection rateVSAvoiddetection accuracy

Core Design Contradiction:

ReliabilityVSMeasurement precision

Solution Approach 1:

The patent applies dynamics by making the detection range and detection conditions adjustable rather than fixed. The control unit dynamically changes the detection parameters based on user-selected priorities (detection rate priority or detection speed priority), allowing the system to adapt between wide-range detection and fast detection modes as needed

Inventive Principle:

Principle #15Dynamics

3Reliability

If the detection range is widened to detect faces in various different conditions, then the detection rate improves, but the detection complexity increases

Engineering Contradiction:

Improvedetection rateVSAvoiddetection condition complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent applies dynamics by making the detection range and detection conditions adjustable rather than fixed. The control unit dynamically changes the detection parameters based on user-selected priorities (detection rate priority or detection speed priority), allowing the system to adapt between wide-range detection and fast detection modes as needed

Inventive Principle:

Principle #15Dynamics

Data Source

PatentUS9131138B2Photographing apparatus

Publication Date: 2015.09.08 FUJIFILM CORP

AI summary

A photographing apparatus including an imaging unit to photograph a subject to acquire image data; an object detection unit to detect a predetermined object from the image data; and a detection condition setting unit to allow a detection condition for the object detection unit to be set according to a photographing mode.