Capsule head defect detection method and apparatus
A defect detection and capsule technology, applied in character and pattern recognition, instruments, computer components, etc., can solve the problems of secondary contact pollution, slow detection speed, inaccurate subjective judgment, etc., and achieve effective recognition and high accuracy Effect
Active Publication Date: 2015-12-09
BEIJING TECHSHINO TECH
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[0003] Capsules are characterized by many types and large quantities in actual production, and the finished capsules will inevitably have some defects, mainly including damage, over-length, over-short, surface spots, uneven thickness, etc.
At present, domestic pharmaceutical factories mostly rely on manual detection of defects in the production process of capsules. This method cannot meet the quality requirements of modern industrial production.
Although some pharmaceutical factories have introduced the image processing method into the capsule detection to solve the problems of manpower, material resources, secondary contact pollution, slow detection speed and inaccurate subjective judgment required by manual detection, they are all researched on the capsule body. , there are few research results on the defect detection of the capsule head, thus ignoring the damage at both ends of the capsule
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[0032] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.
[0033] In one aspect, the present invention provides a capsule head defect detection method, such as figure 1 shown, including:
[0034] Step S101: Acquiring a grayscale image of the capsule head to be detected;
[0035] In this step, when the capsule head image to be detected is obtained as a color image, the original true-color capsule head image can be converted into a grayscale image by selecting appropriate red, green, and blue (RGB) channels according to the color of the capsule. High-degree processing can reduce the amount of original image data, and reduce the calculation amount of subsequent processing.
[0036] Step S102: Extracting a region of interest from the grayscale image, where the region of interest contains bright spots;
[0037] In...
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The present invention discloses a capsule head defect detection method and apparatus, and belongs to the field of image processing and mode identification. The method comprises: acquiring a grey image of a to-be-detected capsule head; extracting a region of interest from the grey image, wherein the region of interest contains a bright light spot; performing binarization processing on the region of interest to obtain a binary image; extracting an image edge from the binary image to obtain a target region of the bright light spot; extracting a morphological feature and / or a grey level statistical feature from the target region; and performing classification on the morphological feature and / or the grey level statistical feature by using a classifier, and detecting whether a defect exists in the capsule head. Compared with the prior art, the capsule head defect detection method provided by the present invention has the advantages of being capable of effectively identifying a qualified capsule head and a defective capsule head, and having relatively high accuracy.
Description
technical field [0001] The invention relates to the fields of image processing and pattern recognition, in particular to a capsule head defect detection method and device. Background technique [0002] In the production of medicines, powders or granules that are irritating to the esophagus and gastric mucosa, or medicines that taste bad and are easy to volatilize are often packaged in capsules. These medicines are packed in capsules, which not only protects the properties of the medicine from being damaged, but also Protects the digestive organs and respiratory tract. Removing the capsule shell may result in drug loss, drug waste, and reduced drug efficacy. In addition, some drugs need to be dissolved and absorbed in the intestines, and the capsule is a kind of protection to protect the drugs from being destroyed by gastric acid. Therefore, capsules are widely used in the production and processing of pharmaceuticals. [0003] In the actual production of capsules, there ar...
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IPC IPC(8): G06K9/62G06K9/60
CPCG06V10/20G06F18/24
Inventor 吴佳美初育娜许猛王琪张祥德
Owner BEIJING TECHSHINO TECH