Lead Image Recognition via Shutter Speed Missing-Rate Selection
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Solution Overview
Problem
Existing recognition devices do not consider how the missing rate of imaging data changes with shutter speed, which affects image recognition accuracy.
Innovation Solution
A recognition device that includes a light source, imaging device, and image analysis device to select a shutter speed by changing it between limits, calculating missing rates, and selecting speeds where the missing rate is below a threshold.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If shutter speed is increased to reduce image missing rate, then image recognition accuracy is improved, but imaging time increases
Solution Approach 1:
The patent applies parameter changes by systematically varying the shutter speed parameter across multiple imaging operations. The image analysis device changes the shutter speed parameter to different values, captures multiple images at each setting, and evaluates the missing rate to identify the optimal shutter speed that achieves acceptable image quality with minimal imaging time.
Solution Approach 2:
The patent employs preliminary action by pre-establishing the relationship between shutter speed and missing rate through multiple test imaging operations. The system performs preliminary imaging at various shutter speeds, evaluates the results, and determines the optimal shutter speed before actual production imaging, thereby avoiding time-consuming trial-and-error during manufacturing.
2Measurement precision
If multiple imaging operations are performed at different shutter speeds to find optimal settings, then image quality is improved, but device complexity increases
Solution Approach 1:
The image analysis device performs multiple functions: it controls the imaging device to capture images at various shutter speeds, analyzes the captured images to calculate missing rates, and determines the optimal shutter speed setting. This multi-functionality consolidates what would otherwise require separate devices into one integrated system, managing complexity through functional integration.
Solution Approach 2:
The system applies self-service by automatically evaluating multiple imaging results and autonomously determining the optimal shutter speed without requiring external intervention. The image analysis device independently performs the evaluation of missing rates across different shutter speeds and selects the best setting, making the system self-sufficient and reducing operational complexity.
3Ease of operation
If automatic shutter speed selection is implemented, then operator effort is reduced, but calculation complexity increases
Solution Approach 1:
The patent replaces manual operator judgment with automated computational analysis. Instead of operators manually evaluating image quality and selecting shutter speeds, the image analysis device automatically calculates missing rates from captured images and determines the optimal shutter speed through computational processing, substituting mechanical human effort with automated calculation systems.
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
Enables accurate selection of shutter speed to minimize image missing rates, improving recognition accuracy and reducing operator effort.
Implementation Method 1
a light source 51, 52 configured to apply light to the component 80
Implementation Method 2
an imaging device 53 configured to image the component 80 that has received the light applied by the light source 51, 52
Data Source
AI summary
An image analysis section executes instruction processing to image electronic component while changing a shutter speed of measurement camera between a predetermined lower limit speed and a predetermined upper limit speed calculation processing of comparing an image of lower surface of each lead included in each of multiple imaging data acquired from the measurement camera with an ideal image of lower surface of each lead included in ideal imaging data to calculate a missing rate at which the image of lower surface of each lead is missing with respect to the ideal image for each of the multiple imaging data, detection processing of detecting imaging data having a missing rate equal to or less than a predetermined first threshold among multiple missing rates calculated by the calculation processing, and selection processing of selecting a shutter speed used for capturing the imaging data detected by the detection processing.