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OpenNI 再度更新囉！這次離上次的 OpenNI 1.4.0.2 / NITE 1.5.0.1 發布的間隔不到一個月，就再度推出新版，進度算滿快的。而這次的版本編號比較特別，就是 OpenNI 的版本編號終於和 NITE 一樣了！兩者都是 1.5.2.7。相較之下，之前的 NITE 至少都領先 OpenNI 一個次版號，這樣對應的版號相同，應該比較直覺吧？ ^^"

有需要的人，一樣可以到 OpenNI 的官方網站下載：http://www.openni.org/Downloads/OpenNIModules.aspx

而由於驅動程式 Sensor 的版本也進版到 5.1.0.25 了，所以如果是要搭配 Kinect 使用的話，可能也還需要等 SensorKinect 更新到對應的版本，才能完全正常運作。而 Heresy 大概試了一下，目前基於 5.0.5.1 的 SensorKinect v0.8 似乎還是可以用，但是有沒有問題就不曉得了。

而主要的更新內容，主要算是錯誤修正、再加上一些穩定性的強化了∼像是之前在 Visual Studio 下，想要對程式進行偵錯時會出現「Xiron OS got an event timeout」的錯誤訊息、而無法執行程式的問題，基本上已經修復了∼不過很遺憾的是，這部份的問題主要似乎是在 Driver 的部分，所以目前在沒有 avin2 的新版 SensorKinect 的情況下，問題依然是存在的。（問題描述：《"Xiron OS got an event timeout" & XnSensorServer.exe》）

另外，目前對於 AMD CPU 的 SSE3 指令集，似乎還是有相容性的問題。不過因為 Heresy 自己沒在用 AMD 的機器，所以也沒碰到就是了。

最後，簡單的更新列表，可以參考《New unstable release - Many improvements and bug fixes! (OpenNI-1.5.2.7, NITE-1.5.2.7, Sensor-5.1.0.25)》一文，基本上包括了：

完整的列表，可以參考 github 上的更新列表（連結），下面是 Heresy 自己稍微整理一下的內容：

• New API: xnStopSinglePoseDetection.
• PoseDetectionCapability::StopPoseDetection will now return proper errors.
• xnNodeInfoGetTreeStringRepresentation was added to all wrappers.
• Recordings playbacks: make sure seek is also performed in a lock, so it wouldn't collide with the reader thread.
• Data Dump: Adding frame sync information checks.
• Log: initializing from INI file would reset the output directory.
• Bug Fix:
  • Seeking before the first WaitXUpdateAll() caused undetermined behavior.
  • The samples cannot be copied to another folder and be compiled.
  • Seeking to the current frame did no re-read it, while seeking to another frame did read it. This caused a bug where seeking to the same frame twice would cause it to return twice.
• .Net Wrappers
  • Added the DataPtr property to Generator class.
  • Added the missing DeviceIdentificationCapability class.
  • Added missing enum values.
  • Disposing a device node now also destroys the node.
  • Fixed a bug where MapGenerator.BytesPerPixel was missing.
  • FindExistingNode now returns null instead of throwing an exception if no node exists.
  • Projective/RealWorld conversion - added a version which accepts a preallocated array.
  • .Net samples will now show their source files in the visual studio project.
• Java Wrappers
  • Added missing enum values.
  • StartPoseDetection and StopPoseDetection are declared deprecated, and were replaced by startPoseDetection and stopPoseDetection.
  • Java UserTracker sample will now draw the limbs only when both joints have a non-zero confidence
• Samples
  • NiUserSelection - Enhanced the documentation.
  • NiUseExtension sample: added a clear message about the need to register the extension module.
  • NiBackRecorder: removed unneeded calls to Release().
  • NiConvertXToONI: removed unused seekNode.
  • Added option to show low confidence limbs as dotted lines in the user selection sample.
• Linux
  • Cross compilation is now based on environment variables.
  • keep ref count for the libusb events thread, so it will be shutdown automatically when all read threads have stopped.
• Android:
  • makefiles are now compatible to ndk v7.
  • Added the NiSimpleSkeleton sample.
  • Android UserTracker sample: Adjusted to work without a calibration pose.
• USB Driver version was updated to 3.1.3.1.
  • adding support for PrimeSense's 0601 product ID.