Endoscope
The endoscope (1) comprises an objective optical system (11) provided with a movable lens, a CCD (12) that captures images of the subject through the objective optical system (11), an edge enhancement unit (36) that performs edge enhancement on the image generated from the CCD (12) and generates an...
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Main Author | |
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Format | Patent |
Language | Chinese English |
Published |
20.03.2013
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Subjects | |
Online Access | Get full text |
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Summary: | The endoscope (1) comprises an objective optical system (11) provided with a movable lens, a CCD (12) that captures images of the subject through the objective optical system (11), an edge enhancement unit (36) that performs edge enhancement on the image generated from the CCD (12) and generates an edge component signal, a focus evaluation unit (40) that assesses the state of focus by assessing the signal distribution of the edge component signal, and an actuator driving unit (42) that moves the movable lens to the focus position on the basis of the state of focus. |
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Bibliography: | Application Number: CN201180033880 |