Image acquisition device and acquisition method

Abstract

The invention provides an image obtaining device and method. The image obtaining device comprises a plurality of image sensing modules and at least one light source and is used for obtaining an image of an eyeball; every image sensing module comprises an image sensor and a lens; the lighting light is sent from the light source and irradiates on the eyeball; the lighting light is reflected into the image light through the eyeball; the image light comprises a plurality of sub-image light beams which are transmitted to the image sensors through the lenses of the image sensing modules respectively. The invention also provides the image obtaining method.

Description

Technical field [0001] The present invention relates to an image acquisition device and an acquisition method, and particularly relates to an image acquisition device and an acquisition method for obtaining eyeballs. Background technique [0002] The eyes are the window of the soul, through which people can feel the light and colors of this world. The cone-shaped cells and rod-shaped cells that sense color and light in the eye are located on the retina of the fundus, and are the only tissues in the human body that can convert light into physiological electrical signals. Among them, blood vessels that supply blood and nutrients to the eye are also located in the fundus. When blood vessels proliferate or rupture in the fundus of the eye, for example, symptoms such as hemorrhage in macular degeneration, it is very easy to cause the death of cone and rod cells on the retina, and the patient loses vision. Therefore, the observation and tracking of fundus images is extremely importan...

AI Technical Summary

Problems solved by technology

However, the illumination light when repeatedly taking multiple fundus images will also make the patient's eyes feel uncomfortable and tired, which may cause involuntary blinking or nystagmus and affect the image quality

In addition, since these images of the fundus are obtained by taking multiple shots, the exposure value and white balance of each shot are different, and these images need to be corrected first before they can be stitched using a computer or other large calculator, making The difficulty of its correction increases and affects the image quality after splicing

However, if the quality of stitched images is affected, it may be difficult for medical staff to identify the microvascular images of the fundus, which may cause difficulties in judgment and even delay the timing of treatment for patients.

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