Endoscope Image Processing Using Pulsed Light for Motion Detection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing motion detection technologies in endoscope devices face challenges in accurately detecting motion, especially for rapid and periodic motions, due to reliance on old information from previous frames, leading to image blurring and reduced accuracy.
Innovation Solution
An image processing device that employs pulsed-light emission multiple times during the exposure period of each captured image, allowing for real-time motion detection of a photographic subject's motion vector components and direction, enabling accurate motion correction and image stabilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If motion detection is performed using images from multiple previous frames, then motion detection can be implemented, but motion detection accuracy deteriorates due to using old information
Solution Approach 1:
The light source performs pulsed light emission multiple times within a single exposure time period at predetermined intervals. This periodic action allows the imaging unit to capture multiple images during one exposure, enabling motion detection using fresher information from the current frame rather than relying solely on previous frames, thus improving motion detection accuracy while reducing time delay.
2Illumination intensity
If continuous light emission is used during exposure, then sufficient light is provided for imaging, but motion blurring occurs in images of moving subjects
Solution Approach 1:
The light source emits light in pulses at predetermined intervals within the exposure time period rather than continuously. This periodic emission provides sufficient light for imaging while capturing multiple snapshots of the moving subject at different moments, thereby reducing motion blurring and improving image clarity.
Solution Approach 2:
The continuous exposure period is segmented into multiple discrete pulsed light emission events. By dividing the exposure into separate pulses, the system captures multiple images during one exposure, allowing motion detection and correction while maintaining sufficient illumination for each captured image.
3Adaptability or versatility
If multiple previous frames are used for motion detection, then motion information can be obtained, but detection of rapid and periodic motions deteriorates
Solution Approach 1:
The pulsed light emission occurs multiple times within a single exposure time period at predetermined intervals, enabling the capture of multiple images that reflect rapid and periodic motions. This approach improves the system's ability to detect and accurately measure fast-moving and oscillating subjects by providing more current motion information from the same exposure period.
Data Source
AI summary
The present technology relates to an image processing device, an image processing method, an endoscope system, and a program that enable motion detection with higher accuracy. The endoscope system includes: a light source capable of performing a pulsed-light emission; a light-source control unit that controls the light source such that the light source performs the pulsed-light emission a plurality of times in an exposure time period of each captured image; an imaging unit that takes the captured images; and a motion detection unit that detects a motion of a photographic subject in the captured images. The present technology is applicable to the endoscope system.