Image Sensor Activation Control for Endoscope Luminance Consistency
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing image display systems, including those in mobile phones, digital cameras, and endoscope apparatuses, face challenges in optimizing image quality based on movement, as current technologies do not effectively adjust image sensor activation and processing according to the type of image (video or still) or the amount of movement, leading to inconsistent luminance and image quality.
Innovation Solution
An image display system that incorporates a motion detector, image sensor controller, and image signal processor to adjust the activation of the image sensor based on movement, using timing control signals to optimize image processing for both video and still images, and adjust photo-charge accumulation in the image sensor according to the amount of changed image data between frames.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the image sensor is activated continuously to capture high-quality images, then image quality is improved, but power consumption increases
Solution Approach 1:
The patent implements dynamic adjustment of image sensor activation based on detected movement. The system transitions from continuous activation to conditional activation, where the sensor is activated only when movement exceeds a threshold value. This dynamic approach maintains high image quality when needed while reducing power consumption during static periods.
Solution Approach 2:
The system changes the activation parameter of the image sensor based on movement detection. By monitoring movement parameters and comparing them against threshold values, the system adjusts whether the sensor should be activated, effectively changing the operational parameters to balance quality and power consumption.
2Use of energy by moving object
If the image sensor activation timing is adjusted based on movement detection, then power consumption is reduced, but image quality may deteriorate
Solution Approach 1:
The system employs feedback mechanisms where movement detection results directly influence image sensor activation decisions. The movement detection unit continuously monitors and provides feedback to the controller, which adjusts sensor activation accordingly. This closed-loop feedback ensures that image quality is maintained by activating the sensor whenever movement is detected, while avoiding unnecessary activation during static conditions.
3Manufacturing precision
If the image sensor is activated frequently to capture moving images, then video quality is improved, but the difference in luminance between still and video images increases
Solution Approach 1:
The system performs preliminary movement detection before activating the image sensor. By detecting movement in advance and comparing it against threshold values, the system determines whether sensor activation is necessary. This preliminary action prevents unnecessary activations that would cause luminance fluctuations, while ensuring timely activation when movement occurs to maintain video quality.
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
This solution improves image quality by dynamically adjusting image processing and sensor activation, resulting in enhanced luminance and clarity for both video and still images, particularly in applications like endoscope apparatuses where clear visualization is critical.
Implementation Method 1
a motion detector which is mounted in an apparatus and which senses a movement of the apparatus
Implementation Method 2
The image sensor may convert an optical signal into an electrical signal depending on the brightness and wavelength of light entering into each pixel
Data Source
AI summary
Provided is an image display system including: a motion detector which is mounted in an apparatus and which senses a movement of the apparatus; an image sensor which performs an image pickup of an object, and converts the image into an image signal; an image sensor controller which receives a movement signal from the motion detector and controls activation of the image sensor according to amount of the movement of the apparatus; an image signal processor which performs image processing for the image signal and generates an image; and a display unit which displays the image.