Archives for : 電腦圖像(Computer Graphic)

Shadow Play China 皮影戏

This APPs creacted by Anakule Studios .

With Shadow Play apps you can record with a simple webcam your own theatre play, stand up comedy or what ever you like and share it with your audiences and friends on internet like Facebook or Youtube.

APP Download:

iOS version

Andorid

External Link

Shadow Play explain

Interactive Puppet Prototype with hacked Kinect

The system is doing skeleton tracking on the arm and determining where the shoulder, elbow, and wrist is, using it to control the movement and posture of the giant funky bird! 

External link

Design IO

Live Performance of Digital Puppet

Virtual Character

Real time 3D character animation with or without Motion Capture. For live TV shows and live cultural events.

Developed by the POOL factory

Extention Link

Mamiya Digital Cameras

Practical Motion Capture in Everyday Surroundings

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By Daniel Vlasic, Rolf Adelsberger, Giovanni Vannucci, John Barnwell, Markus Gross, Wojciech Matusik, Jovan Popovi´c

Commercial motion-capture systems produce excellent in-studio reconstructions, but offer no comparable solution for acquisition in everyday environments. We present a system for acquiring motions almost anywhere. This wearable system gathers ultrasonic time-of-flight and inertial measurements with a set of inexpensive miniature sensors worn on the garment. After recording, the information is combined using an Extended Kalman Filter to reconstruct joint configurations of a body. Experimental results show that even motions that are traditionally difficult to acquire are recorded with ease within their natural settings. Although our prototype does not reliably recover the global transformation, we show that the resulting motions are visually similar to the original ones, and that the combined acoustic and inertial system reduces the drift commonly observed in purely inertial systems. Our final results suggest that this system could become a versatile input device for a variety of augmented-reality applications.

商業化的動作擷取系統多數可在工作室內重建出來,但提供無法提供解決方法於每日週遭環境中。因次我們提供一套可以在任何地方使用的動作擷取系統。這個 穿戴式系統利用低廉的微型傳感器miniature sensors收集超音波time-of-flight與慣性量測資料。經過紀錄後,將資訊結合外部Kalman Filter建置身體關節點結構。實驗結果顯示,即使動作一般屬於難以透過自然設定被擷取與紀錄。隨然我們的Prototype並不是很穩定的去完成全部3D人體的變形,但我們顯示的結果是Motion與視覺化的人物非常相近,並結合音響和慣性的系統,降低drift,研究的最終結果是建議這套系統可以成為多功能輸入裝置給予擴增實境方面的應用

相關連結 Extenal Link

Practical Motion Capture in Everyday Surroundings

Jovan Popović

 

Puppet show

PuppetShow is a system that allows people use there bodies to control virtual characters. Puppet show uses a webcam to track the movements of a puppet and translates the gestures into bone movements in a game engine. Puppet Show’s goal is remove confusing middleware (keyboards and mice) from the player interface and allow the users to use their body’s natural expressiveness to convey themselves in virtual environments.

PuppetShow was built with Processing and runs within the Unreal Runtime using custom characters. Currently PuppetShow is in the late alpha phases and can track any flat color puppet and relay the actions two different specialized characters: a duck and a panda. Currently the PuppetShow team is integrating the complete PuppetShow animation system into the standard Unreal skeletal system. In the near future PuppetShow will be able to control any Unreal character through the PuppetShow interface.

How it Works

PuppetShow in truth is actually two separate systems that communicate over a TCP link: the puppet tracker and the Unreal puppet animation system. Below is the overall flow diagram of how PuppetShow works.

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Puppet tracking is accomplished by using a puppet, a webcam, and the PuppetShow color tracking software. The color tracking software uses a refined blob tracking algorithm to track solid colors on a puppet. Since the tracking is based solely on color almost anything can act as a puppet: origami, gloves, socks, shirts and so forth! The tracking color can be set easily with the dynamic color calibration system. Based on a predetermined scheme, the tracking software then takes the blobs and translates them into usable information which is subsequently sent to the Unreal Runtime running the PuppetShow animation system.

The PuppetShow Mutator takes in values from the color tracker and translates them into bone translations and rotations. These are then applied to the character controlled 3D mesh (in the above diagram: a ducky!) which is subsequently displayed on the screen. An important note: PuppetShow does not interfere with the standard input devices of Unreal. This allows players to move and manipulate their characters as they would usually be able to.

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http://www.lcc.gatech.edu/~dhunt/puppetshow/index.htm

by devin grey hunt.