Digital Image Processing Apparatus Shutter Speed Control
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Solution Overview
Problem
Digital image processing apparatuses face challenges in capturing images of moving objects without introducing shake or noise, as existing systems struggle to automatically adjust shutter speed and sensitivity effectively based on the object's movement.
Innovation Solution
A method and apparatus that detect moving objects in input images, measure their movement, and adjust shutter time inversely proportional to the movement, while also considering file size or image size, to minimize shake and noise by establishing suitable shutter times and sensitivities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the shutter speed is increased to capture moving objects, then the image quality improves, but the sensitivity increases causing noise
Solution Approach 1:
The patent applies dynamics by making the shutter speed adjustable based on the detected movement amount of the subject. The control unit dynamically changes the shutter speed according to the movement detection results, allowing the system to adapt to different shooting conditions and resolve the contradiction between image quality and noise by selecting optimal shutter speeds for each situation
Solution Approach 2:
The patent changes the shutter speed parameter based on the movement amount detected from the image. By varying the shutter speed parameter according to the detected movement, the system can optimize the balance between capturing clear images and minimizing noise, directly addressing the technical contradiction
2Object-generated harmful factors
If the shutter speed is decreased to reduce sensitivity and noise, then the noise is minimized, but the image may show shake or blur
Solution Approach 1:
The system dynamically adjusts the shutter speed based on real-time movement detection. When movement is detected, the control unit increases the shutter speed to prevent blur; when movement is minimal, it decreases the shutter speed to reduce noise. This dynamic adjustment resolves the contradiction by adapting to actual shooting conditions
Solution Approach 2:
The patent implements feedback by detecting the movement amount from the image and using this information to adjust the shutter speed. The control unit receives movement detection results and feeds back to modify the shutter speed setting, creating a closed-loop system that optimizes both noise reduction and image quality
3Manufacturing precision
If the sensitivity is increased to capture moving objects clearly, then the image quality improves, but the noise increases
Solution Approach 1:
The system dynamically adjusts sensitivity based on the detected movement amount. The control unit changes the sensitivity parameter according to the movement detection results, allowing optimal capture of moving objects while minimizing noise. This dynamic adaptation resolves the contradiction between image quality and noise
Solution Approach 2:
The patent changes the sensitivity parameter based on the movement amount detected from the image. By varying the sensitivity parameter according to the detected movement, the system can optimize the balance between capturing clear images and minimizing noise, directly addressing the technical contradiction
Data Source
AI summary
A digital image processing apparatus that detects a moving object included in an input image, establishes a shutter speed according to an amount of movement of the moving object, and performs a capturing operation based on the established shutter speed, and a method of controlling the digital image processing apparatus are provided. The method includes: receiving an input image; detecting a moving object in the input image; measuring an amount of movement of the moving object; and establishing a shutter time for a capturing operation according to the amount of movement of the moving object and according to at least one of: an established file size of an image to be captured or an established image size of the image to be captured.