Projection splicing method of DLP machine

• Main Authors: HU HETIAN, TANG TIAN, HE XUEJUN, XU JIA, YING HUA, WANG CHUNYU, YU HONGXIANG, YANG YIJIE
• Format: Patent
• Language: Chinese; English
• Published: 11.09.2020
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; PICTORIAL COMMUNICATION, e.g. TELEVISION

The invention discloses a projection splicing method of a DLP machine, which comprises the following steps of: geometrically correcting a projection area, amplifying and compensating for a projectionimage, partitioning the projection image, and finely partitioning pixel points of a spliced part. Accurate splicing of projection images of multiple DLP machines is achieved, deviation caused by factors such as the machines and assembly is overcome, the problem of irradiation overlapping of adjacent projection areas is solved, the size and precision of the spliced projection images can be guaranteed, and a road is laid for printing of a large-format DLP model. 本发明公开了一种拼接DLP光机投影的方法，需要对投影区域的几何校正，对投影图像的放大补偿，在对投影图像进行分区后，还要对拼接部位的像素点进行精细分区。本发明实现了多台DLP光机投影图像的准确拼接，克服了光机本身以及装配等因素带来的偏差，改善了相邻投影区域照射重叠的问题，并能保证拼接后的投影图像的尺寸和精度，为打印大幅面DLP模型铺平了道路。