Imaging system and imaging method

Abstract

The invention provides an imaging system and an imaging method. White light and infrared light are adopted to irradiate a sample carrying fluorophores at the same time, the white light is reflected toform a first signal light, the fluorophores are excited to form a second signal light, an RGBIR image sensing module obtains a first RGBIR image signal of the sample according to the first signal light and the second signal light, and only one shoot is needed to obtain the first RGBIR image signal. The imaging system and the imaging method greatly reduce the amount of data needed to acquire the same data, reduce the requirement on a transmission bandwidth of the system, effectively improve the exposure adjustment time, can obtain better image noise suppression, have lower requirement on the exposure frequency of the RGBIR image sensing module, can use a rolling shutter image sensor with low price, and reduce the costs.

Description

technical field [0001] The present invention relates to the technical field of imaging systems, in particular to an imaging system and an imaging method. Background technique [0002] In recent years, methods that use infrared (IR) dyes to label tissues such as tumors and blood vessels to form fluorophores during surgical removal of tumors in a clinical setting have attracted attention. Infrared dyes are considered to be excellent labeling dyes for labeling tissues, and the use of these dyes to label tissue and use in, for example, clinical operating room environments requires the use of IR-sensitive imaging systems (such as CCD image sensors) in alternating use of infrared light illumination and In the case of visible light illumination, the infrared image signal and the visible light image signal are collected separately, and the infrared image signal is superimposed on the visible light image signal to provide a contrast for the surgeon during operation, so that the surge...

AI Technical Summary

Problems solved by technology

However, this method needs to synchronize the exposure time of the image sensor with the switching time of the light source (including infrared light source and visible light source), requires an accurate synchronization device, and needs to take multiple frames of images in order to obtain a composite frame. The continuity of the image needs to be obtained at a very high frame rate, which will lead to a sudden increase in the data transmission bandwidth, and the exposure time is limited, which is not conducive to noise suppression. The system is complex, the requirements are high, and the cost is bound to be high.

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