A colorful line scanning fundus imaging device and a method for synthesizing colorful fundus images
An imaging device and line scanning technology, applied in ophthalmoscope, image enhancement, image analysis, etc., can solve the problems that cannot meet the needs of patients' eye detection and are unfavorable for patients' fundus examination, so as to avoid human eye jitter and facilitate inspection , the effect of reducing damage
Active Publication Date: 2019-05-17
SHENZHEN CERTAINN TECH CO LTD
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Problems solved by technology
However, the light source of the current line scan imaging system usually uses a near-infrared light source. Compared with the white light source in the fundus camera, the grayscale image formed by it is not conducive to the fundus examination of some patients who can distinguish diseased areas by reflective colors.
Therefore, fundus cameras and line scan imaging systems each have their own advantages and disadvantages, and cannot meet the needs of patients' eye detection
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[0079] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0080] refer to figure 1 , figure 1 It is an existing colorful line scanning fundus imaging device, including: a line beam generating unit 10A, a beam delivery unit 104 , a scanning unit 105 , a lens group 10B, a first lens 108 and an imaging unit 109 . Wherein, the propagation path of the light beam illuminating the fundus is as follows: the line beam generated by the line beam generation unit 10A hits the beam delivery unit 104, and the beam delivery unit 104 reflects all the received line beams to the scanning unit 105, and the line beam passes through the scan...
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The invention discloses a colorful line scanning fundus imaging device, comprising: a line beam generating unit, a beam transfer unit, a scanning unit, a lens group, a first lens and an imaging unit; the monochromatic line beam emitted by the line beam generating unit passes through the beam The transmission unit is reflected to the scanning unit, and then reaches the fundus of the human eye after passing through the lens group; the scanning unit makes the line beam scan the fundus, and after being scattered by the fundus, the returned monochromatic line beam carries fundus information, returns to the scanning unit by the lens group, passes through the beam The transmission unit is incident to the first lens, and finally forms an image on the imaging unit to obtain a line-scanning fundus map. The invention also discloses a method for synthesizing multiple images obtained by scanning human eyes with the device into a multi-color fundus image. Utilizing the device shown in the present invention to scan the human eye avoids pupillary constriction caused by excessive light intensity, reduces damage to human fundus caused by excessive light intensity, and improves the imaging quality of the fundus; the synthetic colorful fundus map is beneficial to fundus diseases check.
Description
technical field [0001] The invention relates to the field of ophthalmic imaging equipment, in particular to the technical field of scanning human eyes with multiple monochromatic line beams to obtain several line-scanning fundus images, and splicing the several line-scanning images into a multi-color fundus image. Background technique [0002] At present, the fundus camera is the only ophthalmic equipment that can be used for fundus white light imaging, but the fundus camera has defects such as insufficient imaging clarity, which is not conducive to the diagnosis of subtle diseases. The line scan imaging system has higher imaging resolution, imaging contrast and imaging quality. However, the light source of the current line scan imaging system usually uses a near-infrared light source. Compared with the white light source in the fundus camera, the grayscale image formed by it is not conducive to the fundus examination of some patients who can distinguish diseased areas by re...
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IPC IPC(8): G06T7/00G06K9/00A61B3/14A61B3/12
CPCA61B3/12A61B3/14G06T7/0012G06T2207/30041G06V40/19
Inventor 蔡守东吴蕾
Owner SHENZHEN CERTAINN TECH CO LTD