动作捕捉(Mocap)的五种形式及各自优缺点分析
动作捕捉(Motion capture),简称动捕(Mocap),又称运动捕捉。是指记录并处理人或其他物体动作的技术。它广泛应用于军事,娱乐,体育,医疗应用,计算机视觉以及机器人技术等诸多领域。 在电影制作和电子游戏开发领域,它通常是记录人类演员的动作,并将其转换为数字模型的动作,并生成二维或三维的计算机动画。捕捉面部或手指的细微动作通常被称为表演捕捉(performance capture)。在许多领域,动作捕捉有时也被称为运动跟踪(motion tracking),但在电影制作和游戏开发领域,运动跟踪通常是指运动匹配(match moving)。 motion capture 动作捕捉(mocap) In 2008, the film《 Avatar 》directed by James Cameron completed the whole process with motion capture technology, realizing the perfect combination of motion capture technology in the film, which is of milestone significance. Other famous motion-capture film roles include Caesar 《Dawn of the Planet of the Apes》and Gollum in the 《Lord of the rings》series, all played by motion-capture guru Andy Serkis. 2008年由詹姆斯·卡梅隆导演的电影《阿凡达》全程运用动作捕捉技术完成,实现动作捕捉技术在电影中的完美结合,具有里程碑式的意义。其他运用动作捕捉技术拍摄的著名电影角色还有《猩球崛起》中的猩猩之王凯撒,以及动画《指环王》系列中的古鲁姆,都为动作捕捉大师安迪·瑟金斯饰演 。
The commonly used motion capture technology can be divided into mechanical, acoustic, electromagnetic, active and passive optical in principle. Different principles of equipment have their own advantages and disadvantages, generally can be evaluated from the following aspects: positioning accuracy; Real-time; Ease of use; The size of the motion range can be captured; Anti-interference; Multi-target acquisition capability; And the degree of connection with the professional analysis software in the corresponding field.
常用的运动捕捉技术从原理上说可分为机械式、声学式、电磁式、主动光学式和被动光学式。不同原理的设备各有其优缺点,一般可从以下几个方面进行评价:定位精度;实时性;使用方便程度;可捕捉运动范围大小;抗干扰性;多目标捕捉能力;以及与相应领域专业分析软件连接程度。
垃圾分类 绿色环保
从技术的角度来说,运动捕捉的实质就是要测量、跟踪、记录物体在三维空间中的运动轨迹。
From the perspective of technology, the essence of motion capture is to measure, track and record the motion track of objects in the three-dimensional space.
A typical motion-capture device generally consists of the following parts:
Sensor/signal capture equipment/data output transmission equipment/data processing equipment
典型的运动捕捉设备一般由以下几个部分组成:
传感器/信号捕捉设备/数据出传输设备/数据处理设备
Motion capture has the following forms: mechanical motion capture, magnetic motion capture, optical motion capture, acoustic motion capture and inertial motion capture.
动作捕捉有以下几种形式:机械式运动捕捉、磁传式运动捕捉、光学式运动捕捉、声学式运动捕捉和惯性运动捕捉。
(为了方便大家理解,HI VFX为大家将这几种不同形式的动作捕捉进行了优缺点及工作原理的表格整理,便于大家快速理解)