Khronos 發表硬體加速的 Computer Vision API:Vision

官方新聞:《Khronos to Create New Open Standard for Computer Vision
官方網頁:http://www.khronos.org/vision

Khronos(建立 OpenGL、OpenCL 的組織)在今年的 SIGGRAPH ASIA 公告,他們開始建立一個開放、跨平台、免授權金的 Computer Vision(電腦視覺)的硬體加速 API 標準,名稱就叫做「Vision」。

這個標準建立的目的,主要是建立「硬體抽象層」(Hardware Abstraction Layer)的標準,希望可以讓 Computer Vision 相關的應用程式、或是更 High level 的函式庫(例如最有名的就是 OpenCV),可以直接透過 vision 來做到硬體加速;基本上,大概就會是像右邊的示意圖的概念了∼

而除了一般桌上電腦的應用外,Khronos 也會著重在越來越普及的行動裝置上,讓更多類型的平台、硬體(CPU、GPU、DSP),都可以使用同樣的標準。

如果這東西真的做出來的話,那對於現在有使用到 OpenCV 的寫程式,或許就有機會不修改程式、直接享受硬體加速的效能提升了吧∼


Design Philosophy:

  • provide interoperable acceleration of computer vision algorithms across platforms;
  • keep the scope for the 1.0 version tightly focused on areas of computer vision agreed to be appropriate and widely beneficial;
  • ensure efficient implementation is possible on a wide variety of computing architectures including CPUs, GPUs and DSPs;
  • keep a primary focus on enabling mobile and embedded devices;
  • efficiently support a possible wide range of high-level computer vision libraries, not solely the OpenCV higher-level library;
  • be usable directly by applications as well as higher level libraries;
  • the design of a clean, forward-looking API takes priority over reuse of existing libraries, however existing APIs and libraries should be leveraged where possible to promote rapid adoption and usage.

Deliverables:

  • A specification for the CV HAL API;
  • Manual pages for the API;
  • An Adoption process that defines the criteria for implementation compliance;
  • A conformance test suite that tests the operation of an CV HAL implementation;
  • A logo and certification mark usage guidelines.

不過,目前這東西還沒正式出來,要等到可以用,要等到 2012 的第四季才會審閱規格草案。下方是目前規劃的 milestone:

  1. 2011/12/02 – Board meeting vote to establish the temporary working group
  2. 2012/01 F2F – first working group F2F Meeting
  3. 2012/04 F2F – agreed SOW sent to Board for approval of full-time working group
  4. 2012 Q4 – draft spec in review.

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