Detection System Scanning Frequency Control for Image Quality
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Solution Overview
Problem
Existing detection systems face a trade-off between image transmission efficiency and quality, as high-resolution image capture results in excessive data, reducing frame rate, and high efficiency requires lower image resolution, compromising image quality.
Innovation Solution
The control method employs different scanning frequencies for key and non-key areas in image data, maintaining higher resolution for key areas while reducing resolution for non-key areas to optimize data transmission efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If high resolution images are captured, then image quality is improved, but data transmission efficiency deteriorates due to excessive data volume
Solution Approach 1:
The patent divides the image into multiple regions (first region and second region) and applies different scanning frequencies to each region. The first region receives higher scanning frequency for better image quality, while the second region receives lower scanning frequency to reduce data volume, thus resolving the contradiction between image quality and data transmission efficiency.
Solution Approach 2:
The patent applies different scanning frequencies to different regions of the image based on their importance. Key areas maintain high resolution scanning while non-key areas use reduced scanning frequency, allowing each region to have the quality appropriate to its function, thereby balancing overall image quality with data transmission efficiency.
2Productivity
If frame rate is reduced to decrease data volume, then data transmission efficiency is improved, but image quality deteriorates
Solution Approach 1:
The patent segments the image scanning process into two parts with different scanning frequencies. By applying lower scanning frequency only to the second region (non-key areas), the system reduces overall data volume for better transmission efficiency while maintaining high scanning frequency for the first region (key areas) to preserve image quality where it matters most.
Solution Approach 2:
Different regions of the image are assigned different scanning frequencies based on their importance. This local differentiation allows the system to maintain high image quality in key areas while reducing scanning frequency in less important areas, thereby improving overall data transmission efficiency without significantly compromising overall image quality.
Data Source
AI summary
A control method for a detection system. The detection system includes a detection device. The detection device includes multiple scanning lines. The control method includes the following steps: first image data is generated through the detection device, and at least a part in the first image data corresponds to a key area; a first part corresponding to the key area in the scanning lines is controlled by the detection device in a first scanning manner; a second part corresponding to an area other than the key area in the scanning lines is controlled by the detection device in a second scanning manner. Second image data is generated by the detection device. A scanning frequency of the first scanning manner is lower than a scanning frequency of the second scanning manner.