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-rw-r--r--tracker-kinect-face/CMakeLists.txt11
-rw-r--r--tracker-kinect-face/camera_kinect_ir.cpp270
-rw-r--r--tracker-kinect-face/camera_kinect_ir.h74
3 files changed, 355 insertions, 0 deletions
diff --git a/tracker-kinect-face/CMakeLists.txt b/tracker-kinect-face/CMakeLists.txt
index 8eb064e7..7d8f828a 100644
--- a/tracker-kinect-face/CMakeLists.txt
+++ b/tracker-kinect-face/CMakeLists.txt
@@ -40,5 +40,16 @@ if (WIN32 AND opentrack-intel)
DESTINATION "${opentrack-hier-pfx}"
PERMISSIONS ${opentrack-perms-exec}
)
+
+ # Optional OpenCV support
+ # Needed for Point Tracker to support Kinect V2 IR Sensor
+ find_package(OpenCV QUIET)
+ if(OpenCV_FOUND)
+ add_definitions(-DOTR_HAVE_OPENCV)
+ target_include_directories(${self} SYSTEM PUBLIC ${OpenCV_INCLUDE_DIRS})
+ target_link_libraries(${self} opencv_imgproc opentrack-cv opencv_core opentrack-video)
+ endif()
+
+
endif()
endif()
diff --git a/tracker-kinect-face/camera_kinect_ir.cpp b/tracker-kinect-face/camera_kinect_ir.cpp
new file mode 100644
index 00000000..edae6289
--- /dev/null
+++ b/tracker-kinect-face/camera_kinect_ir.cpp
@@ -0,0 +1,270 @@
+/* Copyright (c) 2019 Stéphane Lenclud
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ */
+
+#include "camera_kinect_ir.h"
+
+#ifdef OTR_HAVE_OPENCV
+
+//#include "frame.hpp"
+
+#include "compat/sleep.hpp"
+#include "compat/math-imports.hpp"
+
+#include <opencv2/imgproc.hpp>
+#include <cstdlib>
+
+namespace Kinect {
+
+ static const char KKinectIRSensor[] = "Kinect V2 IR Sensor";
+
+ CamerasProvider::CamerasProvider() = default;
+
+ std::unique_ptr<video::impl::camera> CamerasProvider::make_camera(const QString& name)
+ {
+ if (name.compare(KKinectIRSensor) == 0)
+ {
+ return std::make_unique<CameraKinectIr>();
+ }
+
+ return nullptr;
+ }
+
+ std::vector<QString> CamerasProvider::camera_names() const
+ {
+ std::vector<QString> cameras;
+ cameras.push_back(KKinectIRSensor);
+ return cameras;
+ }
+
+ bool CamerasProvider::can_show_dialog(const QString& camera_name)
+ {
+ return false;
+ }
+
+ bool CamerasProvider::show_dialog(const QString& camera_name)
+ {
+ return false;
+ }
+
+// Register our camera provider thus making sure Point Tracker can use Kinect V2 IR Sensor
+OTR_REGISTER_CAMERA(CamerasProvider)
+
+
+CameraKinectIr::CameraKinectIr()
+{
+}
+
+
+CameraKinectIr::~CameraKinectIr()
+{
+ stop();
+}
+
+bool CameraKinectIr::show_dialog()
+{
+ return false;
+}
+
+bool CameraKinectIr::is_open()
+{
+ return iInfraredFrameReader!=nullptr;
+}
+
+///
+/// Wait until we get a first frame
+///
+void CameraKinectIr::WaitForFirstFrame()
+{
+ bool new_frame = false;
+ int attempts = 200; // Kinect cold start can take a while
+ while (!new_frame && attempts>0)
+ {
+ new_frame = get_frame_(iMatFrame);
+ portable::sleep(100);
+ --attempts;
+ }
+}
+
+
+
+std::tuple<const video::impl::frame&, bool> CameraKinectIr::get_frame()
+{
+ bool new_frame = false;
+ new_frame = get_frame_(iMatFrame);
+
+ iFrame.data = iMatFrame.ptr();
+ iFrame.width = 512;
+ iFrame.height = 424;
+ iFrame.stride = 0; // Auto step
+ iFrame.channels = 3;
+ return { iFrame, new_frame };
+}
+
+// Safe release for interfaces
+template<class Interface>
+inline void SafeRelease(Interface *& pInterfaceToRelease)
+{
+ if (pInterfaceToRelease != NULL)
+ {
+ pInterfaceToRelease->Release();
+ pInterfaceToRelease = NULL;
+ }
+}
+
+bool CameraKinectIr::start(const info& args)
+{
+ stop();
+
+ HRESULT hr;
+
+ // Get and open Kinect sensor
+ hr = GetDefaultKinectSensor(&iKinectSensor);
+ if (SUCCEEDED(hr))
+ {
+ hr = iKinectSensor->Open();
+ }
+
+ // Create infrared frame reader
+ if (SUCCEEDED(hr))
+ {
+ // Initialize the Kinect and get the infrared reader
+ IInfraredFrameSource* pInfraredFrameSource = NULL;
+
+ hr = iKinectSensor->Open();
+
+ if (SUCCEEDED(hr))
+ {
+ hr = iKinectSensor->get_InfraredFrameSource(&pInfraredFrameSource);
+ }
+
+ if (SUCCEEDED(hr))
+ {
+ hr = pInfraredFrameSource->OpenReader(&iInfraredFrameReader);
+ }
+
+ SafeRelease(pInfraredFrameSource);
+ }
+
+
+ if (SUCCEEDED(hr))
+ {
+ WaitForFirstFrame();
+ bool success = iMatFrame.ptr() != nullptr;
+ return success;
+ }
+
+ stop();
+ return false;
+}
+
+void CameraKinectIr::stop()
+{
+ // done with infrared frame reader
+ SafeRelease(iInfraredFrame);
+ SafeRelease(iInfraredFrameReader);
+
+ // close the Kinect Sensor
+ if (iKinectSensor)
+ {
+ iKinectSensor->Close();
+ }
+
+ SafeRelease(iKinectSensor);
+
+ // Free up our memory buffer if any
+ iMatFrame = {};
+}
+
+bool CameraKinectIr::get_frame_(cv::Mat& frame)
+{
+
+ if (!iInfraredFrameReader)
+ {
+ return false;
+ }
+
+ bool success = false;
+
+ // Release previous frame if any
+ SafeRelease(iInfraredFrame);
+
+ HRESULT hr = iInfraredFrameReader->AcquireLatestFrame(&iInfraredFrame);
+
+ if (SUCCEEDED(hr))
+ {
+ INT64 nTime = 0;
+ IFrameDescription* frameDescription = NULL;
+ int nWidth = 0;
+ int nHeight = 0;
+ float diagonalFieldOfView = 0.0f;
+ UINT nBufferSize = 0;
+ UINT16 *pBuffer = NULL;
+
+ hr = iInfraredFrame->get_RelativeTime(&nTime);
+
+ if (SUCCEEDED(hr))
+ {
+ hr = iInfraredFrame->get_FrameDescription(&frameDescription);
+ }
+
+ // TODO: should not request those info for a every frame really
+ if (SUCCEEDED(hr))
+ {
+ hr = frameDescription->get_Width(&nWidth);
+ }
+
+ if (SUCCEEDED(hr))
+ {
+ hr = frameDescription->get_Height(&nHeight);
+ }
+
+ if (SUCCEEDED(hr))
+ {
+ hr = frameDescription->get_DiagonalFieldOfView(&diagonalFieldOfView);
+ }
+
+ if (SUCCEEDED(hr))
+ {
+ hr = iInfraredFrame->AccessUnderlyingBuffer(&nBufferSize, &pBuffer);
+ }
+
+ if (SUCCEEDED(hr))
+ {
+ //ProcessInfrared(nTime, pBuffer, nWidth, nHeight);
+
+ // Create an OpenCV matrix with our 16-bits IR buffer
+ cv::Mat raw = cv::Mat(nHeight, nWidth, CV_16UC1, pBuffer);
+
+ // Convert that OpenCV matrix to an RGB one as this is what is expected by our point extractor
+ // TODO: Ideally we should implement a point extractors that works with our native buffer
+ // First resample to 8-bits
+ double min = std::numeric_limits<uint16_t>::min();
+ double max = std::numeric_limits<uint16_t>::max();
+ //cv::minMaxLoc(raw, &min, &max); // Should we use 16bit min and max instead?
+ // For scalling to have more precission in the range we are interrested in
+ min = max - 255;
+ cv::Mat raw8;
+ // See: https://stackoverflow.com/questions/14539498/change-type-of-mat-object-from-cv-32f-to-cv-8u/14539652
+ raw.convertTo(raw8, CV_8U, 255.0 / (max - min), -255.0*min / (max - min));
+ // Second convert to RGB
+ cv::cvtColor(raw8, frame, cv::COLOR_GRAY2BGR);
+ //
+ success = true;
+ }
+
+ SafeRelease(frameDescription);
+ }
+
+
+ return success;
+}
+
+
+
+}
+
+#endif
diff --git a/tracker-kinect-face/camera_kinect_ir.h b/tracker-kinect-face/camera_kinect_ir.h
new file mode 100644
index 00000000..f38c342a
--- /dev/null
+++ b/tracker-kinect-face/camera_kinect_ir.h
@@ -0,0 +1,74 @@
+/* Copyright (c) 2019 Stéphane Lenclud
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ */
+
+#pragma once
+
+#ifdef OTR_HAVE_OPENCV
+
+#include <Kinect.h>
+
+//#include "pt-api.hpp"
+#include "compat/timer.hpp"
+#include "video/camera.hpp"
+
+
+#include <memory>
+
+#include <opencv2/core.hpp>
+#include <opencv2/videoio.hpp>
+
+#include <QString>
+
+namespace Kinect {
+
+ struct CamerasProvider : video::impl::camera_
+ {
+ CamerasProvider();
+ std::vector<QString> camera_names() const override;
+ std::unique_ptr<video::impl::camera> make_camera(const QString& name) override;
+ bool can_show_dialog(const QString& camera_name) override;
+ bool show_dialog(const QString& camera_name) override;
+ };
+
+
+///
+/// Implement our camera interface using Kinect V2 SDK IR Sensor.
+///
+struct CameraKinectIr final : video::impl::camera
+{
+ CameraKinectIr();
+ virtual ~CameraKinectIr();
+
+
+ [[nodiscard]] bool start(const info& args) override;
+ void stop() override;
+ bool is_open() override;
+ std::tuple<const video::impl::frame&, bool> get_frame() override;
+ [[nodiscard]] bool show_dialog() override;
+
+private:
+ bool get_frame_(cv::Mat& frame);
+ void WaitForFirstFrame();
+
+private:
+ // Current Kinect
+ IKinectSensor* iKinectSensor = nullptr;
+
+ // Infrared reader
+ IInfraredFrameReader* iInfraredFrameReader = nullptr;
+
+ // Frame needs to stay alive while we access the data buffer
+ IInfraredFrame* iInfraredFrame = nullptr;
+
+ video::frame iFrame;
+ cv::Mat iMatFrame;
+};
+
+}
+
+
+#endif
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