Method and device for adjusting light supplement lamp of ultraviolet imaging device

• Main Authors: HAO YINGJUN, SONG LIFAN
• Format: Patent
• Language: Chinese; English
• Published: 10.09.2021
• Subjects: ACCESSORIES THEREFOR; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES; APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM; CALCULATING; CINEMATOGRAPHY; COMPUTING; COUNTING; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; ELECTROGRAPHY; HOLOGRAPHY; IMAGE DATA PROCESSING OR GENERATION, IN GENERAL; PHOTOGRAPHY; PHYSICS; PICTORIAL COMMUNICATION, e.g. TELEVISION

The invention relates to an adjusting method for a light supplementing lamp of an ultraviolet imaging device. The method comprises the following steps: acquiring pixel gray value information of a current frame image; adjusting the current exposure time according to the pixel gray value information; and adjusting the brightness of the ultraviolet light supplement lamp according to the numerical relationship between the first exposure time and the preset maximum exposure time and the numerical relationship between the first exposure time and the preset minimum exposure time. By adopting the method, the brightness of the ultraviolet light supplement lamp can be adjusted in real time, so that the phenomenon of overexposure or underexposure is avoided. 本申请涉及一种紫外成像装置补光灯调节方法。所述方法包括：获取当前帧图像的像素灰度值信息；根据所述像素灰度值信息调节当前曝光时间；根据第一曝光时间与预设最大曝光时间以及第一曝光时间与预设最小曝光时间的数值关系调节紫外补光灯的亮度。采用本方法能够实时调节紫外补光灯的亮度，进而避免过曝光或欠曝光的现象。