single-cameraCOCA¹⁷⁹²²⁸ 基本例句 🌏只需要单相机；单相机 The mathematical model of a single- camera virtual computer mouse sensor is established and a field calibration approach to the single-camera virtual mouse is proposed. 建立单摄像机虚拟鼠标的数学模型，提出一种虚拟鼠标的现场标定方法。 dictall