3D depth map acquisition method and apparatus

• Main Authors: QIU LI'AN, LIN LIUYU, WU ZHENXING, DAI TIXIAN, LIU JIANQUN, HUANG QIANYAO, LIU HAOZHE, WENG LIANGZHI, CHENG ZIHUAN, WU SHAOMAO
• Format: Patent
• Language: Chinese; English
• Published: 29.05.2018
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; PICTORIAL COMMUNICATION, e.g. TELEVISION

The invention provides a 3D depth map acquisition method and apparatus. The method is applied to an image collection device. The device comprises a VIS-NIR image sensor and an infrared structured light projection component. The VIS-NIR image sensor comprises a plurality of dot matrix units, and a blue light photosensitive component, a green light photosensitive component, a red light photosensitive component and an NIR photosensitive component are distributed on each dot matrix unit. The method comprises the following steps: controlling the working states of the blue light photosensitive component, the green light photosensitive component, the red light photosensitive component, the NIR photosensitive component and the infrared structured light projection component to obtain an optimal NIRimage and an optimal VIS image; and processing the optimal VIS image and a depth image obtained by performing a 3D depth model operation on the optimal NIR image to obtain a 3D depth map. Therefore,the NIR image can be obtai