Imaging system and imaging method thereof

An imaging system, comprising a light source, a light source controller, an objective lens, a sensor array, a sensor reader-writer and an imaging display connected with the sensor reader-writer;

• the light source controller is configured for modulating the light source to a preset frequency;
• the objective lens is configured for imaging an optical signal reflected by a surface of a target object on the sensor array;
• the sensor array is configured for converting the received optical signal into an analog alternating current electrical signal;
• the sensor reader-writer is configured for amplifying the analog alternating current electrical signal and extracting a target signal, converting the target signal into a digital signal and storing the digital signal, and the sensor reader-writer is configured for reading the analog alternating current electrical signal generated by the sensor array in rows, determining whether a preset number of rows are completely read and if not, continuing to read a next row until the analog alternating current electrical signal of the preset number of rows is read;
• the imaging display is configured for restoring and displaying an image of the target object according to the digital signal.