| 摘要 |
The present invention provides an apparatus for projecting a blood vessel using infrared light, which is capable of more accurately photographing a blood vessel and improving projection resolution. According to the present invention, the apparatus for projecting a blood vessel using infrared light comprises: an infrared light irradiation module which irradiates infrared light toward a skin: a camera module which captures an image of the infrared light irradiated from the infrared light irradiation module and reflected from the skin; an image processing module which generates a blood vessel image by extracting a blood vessel from the image of the infrared light captured by the camera module; a projection module which projects the blood vessel image generated by the image processing module onto the skin; a distance sensor which measures a distance from the skin; and a main control unit which, when the measurement result of the distance sensor is that the distance from the skin is within a preset reference distance range, controls the camera module to execute an autofocusing function based on the distance measured by the distance sensor and controls the image processing module and the projection module to project the blood vessel image based on the image of the infrared light captured in an autofocusing state. Therefore, it is possible to allow an operator to more easily find an appropriate distance and to more easily acquire a clearer image of infrared light through the auto focusing function, whereby a clearer blood vessel image can be projected. |
