Image Pickup Apparatus Motion-Based Exposure Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional image pickup apparatuses face challenges in determining the level of motion of a photographing object, leading to potential image quality degradation due to camera shake or object shake, as photographers often misjudge the need for high sensitivity settings, resulting in noisy images or missed shots.
Innovation Solution
An image pickup apparatus with a motion detecting section that calculates object speed and a control section that adjusts exposure time, combined with a camera shake correcting section, to optimize photographing settings and reduce image quality degradation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If photographing sensitivity is increased to prevent object shake, then shutter speed can be made faster, but noise in the image increases and image quality degrades
Solution Approach 1:
The system dynamically changes the photographing sensitivity parameter based on detected object motion. When object shake is detected, sensitivity is increased to allow faster shutter speeds; when no object shake is present, sensitivity is reduced to minimize noise. This adaptive parameter adjustment resolves the contradiction by optimizing the trade-off between shutter speed and noise based on actual conditions.
2Reliability
If photographers manually adjust photographing sensitivity to high sensitivity to prevent object shake, then object shake can be prevented, but photographers may misjudge the need for high sensitivity resulting in noisy images or missed shots
Solution Approach 1:
The system performs self-diagnosis by automatically detecting object motion through the motion detecting section and autonomously adjusting photographing sensitivity without requiring photographer intervention. The motion detecting section analyzes image data to determine whether object shake is occurring, and the control section automatically selects appropriate sensitivity levels, eliminating human judgment errors while ensuring reliable object shake prevention.
3Reliability
If photographers change photographing sensitivity immediately before taking a photograph to prevent object shake, then object shake can be prevented, but photographers may miss the chance to take the photograph
Solution Approach 1:
The system performs preliminary detection of object motion continuously or at intervals before the actual photograph is taken. The motion detecting section analyzes image data in advance to predict whether object shake will occur, allowing the control section to pre-adjust photographing sensitivity before the photographer presses the shutter. This eliminates the need for last-minute adjustments and ensures the optimal sensitivity setting is already in place when the photograph is captured.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution enables high-quality image capture by accurately determining when to increase sensitivity or correct camera shake, preventing noise and ensuring optimal exposure times, thus improving image quality and convenience for photographers.
Implementation Method 1
an image pickup sensor that receives the formed optical image, converts the optical image to an electrical image signal and outputs the image signal
Data Source
AI summary
Provided is an imaging device capable of reducing image degradation due to a shake of a hand or an object and easily capturing an image of preferable image quality. The imaging device (1) includes: an imaging optical system (L) for forming an optical image of an object; an imaging sensor (4) for receiving the formed optical image and converting it into an electric image signal for output; a motion detecting unit (100) for detecting a motion of an object to be imaged according to the outputted image signal; and a microcomputer (3) for controlling an exposure time in accordance with the motion of the detected optical image of the object.