KINECT冷下來了?! - XBOX

By Carolina Franco
at 2011-03-03T17:02
at 2011-03-03T17:02
Table of Contents
小弟單純從學術角度提供一些拙劣看法,
就一般使用者而言,這只是一個看起來跟wii差不多的遊戲機,
但在安全監控、行為辨識以及人機互動上面卻是一大突破,
早期要做行為辨識要先經過許多步驟,我舉一個常見作法:
1. 前景主體分割/ foreground segmentation
2. 主體追蹤/tracking
3. 肢體骨架化/skeleton
4. 建立隱藏馬可夫鏈模型/HMM
5. 分類器/classification
而最困難的部份是在多人的環境下,如何辨別不同人的位置跟姿勢,
一般攝影機沒有深度資訊,很容易受到背景的主體干擾(旁觀者、車流),
直到PrimeSense這家公司開發的距離感測晶片上市,一切問題都迎刃而解了,
其實kinect會擷取到的就是一個深度影像而已,然後透過灰階值高低來代表距離,
但SDK會額外提供的一些middle-ware,可以做到追蹤、手勢辨識、骨架化等功能,
我測試時追蹤的上限是20個人,然後骨架化總共會輸出15個三維座標,
這實在是非常了不起的技術。
就我所知也有許多公司正在虎視眈眈的期盼KINECT早日公布SDK,
同時也在觀望ASUS即將開賣的Xtion,當然這也是PrimeSense為核心的產品,
先不論這兩個產品的市場導向,
可以確定的是這個技術顯然會持續被應用在更多方面,
可以從版上許多熱心網友提供的KINECT消息中看出,
目前已經有無人飛機、自走車、空氣鋼琴、吉他、關鍵報告的視窗拖曳等成果,
所以不用擔心kinect會式微啦!
只要擔心接下來如果kinect大作連發,體力夠不夠破關就可以了。
MJ、重鐵騎快點來吧阿阿阿阿喔喔喔喔喔阿阿阿阿阿阿!!!!!!
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