Medicine Verification Device Boundary Recess Detection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing medicine verification devices struggle to accurately detect the boundary recess between packaging bags in continuous packaging bags, as the recess is small and easily flattened, leading to difficulties in image confirmation and false detection of false recesses.
Innovation Solution
A medicine verification device that captures images of the boundary recess under varying imaging conditions using multiple light sources and cameras, combining images to directly detect the recess and remove false positives, allowing for precise detection without relying on light scattering properties or prescribed lengths.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If boundary recess detection is performed using conventional single-image methods, then the detection process is simple, but the detection accuracy is low due to the small and easily flattened nature of the recess
Solution Approach 1:
The imaging process is segmented into multiple captures under different imaging conditions (varying light sources, angles, or focal lengths). Each image captures different aspects of the boundary recess, and the segmentation allows the system to overcome the limitations of single-image detection by combining information from multiple views.
Solution Approach 2:
The system transitions from two-dimensional single-image detection to multi-dimensional imaging by capturing images from different angles, lighting conditions, or focal planes. This dimensional expansion enables the detection of the boundary recess's three-dimensional characteristics, improving accuracy despite the recess being small and easily flattened.
2Reliability
If multiple images are captured under varying imaging conditions, then false detections are eliminated, but the imaging time and processing complexity increase
Solution Approach 1:
The imaging system performs periodic captures under different imaging conditions in a systematic sequence. This periodic action ensures comprehensive coverage of the boundary recess from multiple perspectives while maintaining a structured approach that optimizes the balance between reliability improvement and time consumption.
Solution Approach 2:
Multiple images captured under different conditions are merged or combined through image processing techniques. This merging allows the system to synthesize a composite view that enhances the visibility of the boundary recess while eliminating false detections, achieving high reliability without requiring excessively long imaging times.
3Measurement precision
If conventional imaging methods are used, then the imaging system is simple, but false recesses are detected leading to verification errors
Solution Approach 1:
The system employs feedback mechanisms where the results from multiple image captures are compared and validated against each other. This feedback loop allows the system to identify and eliminate false recess detections by cross-referencing information from different imaging conditions, thereby improving boundary position accuracy while managing processing complexity through systematic validation.
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 and reliable detection of the boundary recess, improving the verification process by eliminating false detections and applying to packaging bags without specific light scattering characteristics, and handling cases where boundary positions deviate from center positions.
Implementation Method 1
a light irradiation unit that emits light toward the surface of the imaging target portion when the image capturing unit captures an image
Implementation Method 2
an image capturing unit that captures an image of the surface of an imaging target portion on which at least the boundary recess is located a plurality of times while imaging conditions are changed
Data Source
AI summary
A medicine verification device of the present invention includes: a detection unit that detects a boundary recess formed at a boundary position between a plurality of packaging bags each of which packs a medicine and is connected to form a continuous packaging bag having a strip-like shape; and an image capturing unit that captures an image of a surface of an imaging target portion on which at least the boundary recess is located a plurality of times while imaging conditions are changed in a state where light is emitted toward the surface of the imaging target portion in the continuous packaging bag, wherein the detection unit detects the boundary recess in the imaging target portion on the basis of the plurality of images captured while changing the imaging conditions by the image capturing unit.