 运动捕捉 运动捕捉
The principle of motion capture
From a technical point of view, is the essence of motion capture to measure, track, record objects in three-dimensional space trajectory. Typical motion capture equipment generally consists of the following components (see Figure 1):
2.2.1 Sensors. The so-called sensor is fixed in specific parts of moving objects tracking device that will provide movement to the system location information of the movement of objects, usually identified with the level of detail to capture the number of trackers.
2.2.2 signal capture devices. Responsible for the capture, recognition sensor signal. Responsible for movement of data from the signal capture device quickly and accurately transferred to the computer system. This equipment because of the system vary by the type, location of signals they are responsible capture. For the mechanical system is to capture a signal of the circuit board, the optical system is a high-resolution infrared camera.
2.2.3 data transfer device. Especially the need to effect real-time systems require a large number of motion data from the signal capture device quickly and accurately transferred to the computer system for processing, and data transmission equipment is used to complete this work.
2.2.4 data-processing equipment. After the system captures the data need to be amended, after a three-dimensional model must be completed to combine the work of computer animation, which requires us to apply the data processing software or hardware to complete the work. Software Ye Hao matter whether they are using the computer hardware, data processing power to perform high-speed data processing, the three-dimensional model of the real, natural movement together. so it is responsible for handling system captures the original signal to calculate the trajectory of the sensor on corrected data, processing, and combined with three-dimensional role model. |