Esempio n. 1
0
//Update the position
Ball BallFilter::get_updated_ball_estimate(float new_dist, float dist_variance, float new_dir, float dir_variance)
{ 	//dt seconds

	float new_x = new_dist * cos(new_dir);
	float new_y = new_dist * sin(new_dir);

	KMath::Kalman1D<float>::Xbar x_dist = x_filter.update(new_x, dist_variance);
	KMath::Kalman1D<float>::Xbar y_dist = y_filter.update(new_y, dist_variance);



//	Kalman1D<float>::Xbar dist = dist_filter.update(new_dist, dist_variance, dt);
//	Kalman1D<float>::Xbar dir = dir_filter.update(new_dir, dir_variance, dt);

//	filtered_ball.set_relativex(dist(0) * cos(dir(0)));
//	filtered_ball.set_relativey(dist(0) * sin(dir(0)));
//
//	filtered_ball.set_relativexspeed((dist(0) + dist(1)) * cos(dir(0) + dir(1)) - filtered_ball.relativex());
//	filtered_ball.set_relativeyspeed((dist(0) + dist(1)) * sin(dir(0) + dir(1)) - filtered_ball.relativey());

	filtered_ball.set_relativex(x_dist(0));
	filtered_ball.set_relativey(y_dist(0));

	filtered_ball.set_relativexspeed(x_dist(1));
	filtered_ball.set_relativeyspeed(y_dist(1));

	return filtered_ball;
}
Esempio n. 2
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void training_imagenet_raw_to_structured_data_transformer::transform(
	unsigned int sample_id,
	const std::vector<unsigned char>& raw_data,
	float * structured_data)
{
	cv::Mat3b original_image = cv::imdecode(raw_data, CV_LOAD_IMAGE_COLOR);

	// Defaults to center crop
	unsigned int source_crop_image_width = std::min(original_image.rows, original_image.cols);
	unsigned int source_crop_image_height = source_crop_image_width;
	unsigned int x = (original_image.cols - source_crop_image_width) / 2;
	unsigned int y = (original_image.rows - source_crop_image_height) / 2;

	{
		std::lock_guard<std::mutex> lock(gen_mutex);
		for(int attempt = 0; attempt < 10; ++attempt)
		{
			float local_area = static_cast<float>(original_image.rows * original_image.cols);
			float relative_target_area = dist_relative_target_area.min();
			if (dist_relative_target_area.max() > dist_relative_target_area.min())
				relative_target_area = dist_relative_target_area(gen);
			float target_area = local_area * relative_target_area;
			float aspect_ratio = expf(dist_log_aspect_ratio(gen));

			unsigned int new_source_crop_image_width = std::max(static_cast<unsigned int>(sqrtf(target_area * aspect_ratio) + 0.5F), 1U);
			unsigned int new_source_crop_image_height = std::max(static_cast<unsigned int>(sqrtf(target_area / aspect_ratio) + 0.5F), 1U);

			if ((new_source_crop_image_width < static_cast<unsigned int>(original_image.cols)) && (new_source_crop_image_height < static_cast<unsigned int>(original_image.rows)))
			{
				source_crop_image_width = new_source_crop_image_width;
				source_crop_image_height = new_source_crop_image_height;
				std::uniform_int_distribution<unsigned int> x_dist(0, original_image.cols - source_crop_image_width);
				std::uniform_int_distribution<unsigned int> y_dist(0, original_image.rows - source_crop_image_height);
				x = x_dist.min();
				if (x_dist.max() > x_dist.min())
					x = x_dist(gen);
				y = y_dist.min();
				if (y_dist.max() > y_dist.min())
					y = y_dist(gen);

				break;
			}
		}
	}

	cv::Mat3b source_image_crop = original_image.rowRange(y, y + source_crop_image_height).colRange(x, x + source_crop_image_width);
	cv::Mat3b target_image(target_image_height, target_image_width);
	cv::resize(source_image_crop, target_image, target_image.size(), 0.0, 0.0, cv::INTER_CUBIC);

	float * r_dst_it = structured_data;
	float * g_dst_it = structured_data + (target_image_width * target_image_height);
	float * b_dst_it = structured_data + (target_image_width * target_image_height * 2);
	for(cv::Mat3b::const_iterator it = target_image.begin(); it != target_image.end(); ++it, ++r_dst_it, ++g_dst_it, ++b_dst_it)
	{
		*r_dst_it = static_cast<float>((*it)[2]) * (1.0F / 255.0F);
		*g_dst_it = static_cast<float>((*it)[1]) * (1.0F / 255.0F);
		*b_dst_it = static_cast<float>((*it)[0]) * (1.0F / 255.0F);
	}
}
Esempio n. 3
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//Predict the position without observations and robots Motion Model
Ball BallFilter::get_predicted_ball_estimate(float dt, KLocalization::KMotionModel const & MM)
{

	double tmpDist, tmpDir, tmpRot, speedX, speedY, newx, newy, newx2, newy2;

	tmpDist = MM.Distance.val * (MM.Distance.ratiomean);
	tmpDist/=1000;
	tmpDir = MM.Direction.val + MM.Direction.Emean;
	tmpRot = - (MM.Rotation.val + MM.Rotation.Emean); //We turn on the other way the robot turns

	KMath::Kalman1D<float>::Xbar x_dist = x_filter.read();
	KMath::Kalman1D<float>::Xbar y_dist = y_filter.read();

	//Translation
	newx = x_dist(0) - cos(tmpDir)*tmpDist;
	newy = y_dist(0) - sin(tmpDir)*tmpDist;

	//Rotate point
	newx2 = newx*cos(tmpRot) - newy*sin(tmpRot);
	newy2 = newx*sin(tmpRot) + newy*cos(tmpRot);

	//Rotate speed vector
	speedX = x_dist(1)*cos(tmpRot) - y_dist(1)*sin(tmpRot);
	speedY = x_dist(1)*sin(tmpRot) + y_dist(1)*cos(tmpRot);

	if(fabs(speedX)<0.02) speedX=0;//2cm per second is the threshold according to RAUL ROJAS, MARK SIMON
    if(fabs(speedY)<0.02) speedY=0;//2cm per second is the threshold according to RAUL ROJAS, MARK SIMON


	x_filter.set(newx2, speedX);
	y_filter.set(newy2, speedY);
    //Again -0.35m/s is the deceleration found by RAUL ROJAS, MARK SIMON
	x_dist = x_filter.predict_with_decel(dt,0.35);
	y_dist = y_filter.predict_with_decel(dt,0.35);


//	Kalman1D<float>::Xbar dist = dist_filter.predict(dt);
//	Kalman1D<float>::Xbar dir = dir_filter.predict(dt);
//
//	filtered_ball.set_relativex(dist(0) * cos(dir(0)));
//	filtered_ball.set_relativey(dist(0) * sin(dir(0)));
//
//	filtered_ball.set_relativexspeed((dist(0) + dist(1)) * cos(dir(0) + dir(1)) - filtered_ball.relativex());
//	filtered_ball.set_relativeyspeed((dist(0) + dist(1)) * sin(dir(0) + dir(1)) - filtered_ball.relativey());

	filtered_ball.set_relativex(x_dist(0));
	filtered_ball.set_relativey(y_dist(0));

	filtered_ball.set_relativexspeed(x_dist(1));
	filtered_ball.set_relativeyspeed(y_dist(1));

	return filtered_ball;
}
Esempio n. 4
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std::vector<needle> scatter_needles(double height, std::size_t n) {
    static std::mt19937 gen((std::random_device())());
    std::uniform_real_distribution<> x_dist(0.0, height);
    std::uniform_real_distribution<> phi_dist(0.0, 2 * M_PI);

    std::vector<needle> ret;
    ret.reserve(n);

    for (std::size_t i = 0; i != n; ++i) {
        ret.emplace_back(x_dist(gen), phi_dist(gen));
    }

    return ret;
}
Esempio n. 5
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/**
 *  Move snake to the next state
 */
bool Snake::update() {
  int nodes = (int)xs.size();

  if (is_closed()) {
    double x = (xs[0] + xs[nodes - 1]) / 2;
    double y = (ys[0] + ys[nodes - 1]) / 2;
    xs[0] = xs[nodes - 1] = x;
    ys[0] = ys[nodes - 1] = y;
  }

  cv::Mat x_dist(nodes, 1, CV_64F), y_dist(nodes, 1, CV_64F);

  for (int k = 0; k < nodes; ++k) {
    double x_force =
        grad.first.at<double>(ys[k], xs[k]) *
        (edge_weight * hess.at<double>(ys[k], xs[k]) - line_weight);
    double y_force =
        grad.second.at<double>(ys[k], xs[k]) *
        (edge_weight * hess.at<double>(ys[k], xs[k]) - line_weight);
    x_dist.at<double>(k, 0) = tick * x_force;
    y_dist.at<double>(k, 0) = tick * y_force;
  }

  cv::Mat forced_xs(xs), forced_ys(ys);

  forced_xs += x_dist;
  forced_ys += y_dist;

//  std::vector<double> prev_xs(xs), prev_ys(ys);

  xs = (cv::Mat)(pentamat * forced_xs);
  ys = (cv::Mat)(pentamat * forced_ys);

//  double acc_x = 0, acc_y = 0;
//  double eps = ???;
//
//  for (int k = 0; k < nodes; ++k)
//  {
//    acc_x += xs[k] - prev_xs[k];
//    acc_y += ys[k] - prev_ys[k];
//  }
//  acc_x += acc_y; acc_x /= tick;
//
//  if (std::abs(acc_x) < eps)
//  {
//    return true;
//  }

  return false;
}
  void generateData() {
    for (int32_t i = 0; i < num_aps; i++) {
      auto pair = std::make_tuple(x_dist(rng), y_dist(rng), geom_dist(rng) + 1);
      ap_locations.push_back(pair);
    }

    for (int32_t i = 0; i < num_examples; i++) {
      int32_t x_coord = x_dist(rng);
      int32_t y_coord = y_dist(rng);
      std::vector<int32_t> rssi;

      for (int32_t k = 0; k < num_aps; k++) {
        double l2_norm =
            std::sqrt(std::pow(x_coord - std::get<0>(ap_locations[k]), 2) +
                      std::pow(y_coord - std::get<1>(ap_locations[k]), 2));
        double strength = 1 / std::pow(l2_norm, 2) + norm(rng);
        std::cout << strength << " ";
        double scaled = strength / (std::get<2>(ap_locations[k]) / 1000.);
        double db = 10 * std::log(scaled);
        rssi.push_back(db);
      }
      examples.push_back(std::make_tuple(x_coord, y_coord, rssi));
    }
  }
Esempio n. 7
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int main(int argc, char* argv[])
{
    // スコープ長いけれど……
    std::string const output_filename = "report_movement";

    if(argc != 2 || argc != 4)\
    if(argc != 2 && argc != 4)
    {
        std::cout << "Usage: " << argv[0] << " 試行回数 [分割数タテ 分割数ヨコ]" << std::endl;
        //std::quick_exit(-1);
        return -1;
    }

    bool const is_fixed  = argc == 4;
    int  const try_num   = std::atoi(argv[1]);
    auto const split_num = is_fixed ? std::make_pair(std::atoi(argv[3]), std::atoi(argv[2])) : std::make_pair(-1, -1);

    std::mt19937 mt;
    std::uniform_int_distribution<int> select_dist(1, 20); // 選択可能回数生成器
    std::uniform_int_distribution<int> size_dist  (2, 16); // サイズ生成器
    std::uniform_int_distribution<int> cost_dist  (1, 50); // コスト生成器

    for(int n=0; n<try_num; ++n)
    {
        int const problem_id = 0; // 仮
        std::string const player_id = "0"; //仮
        std::pair<int,int> const size = is_fixed ? split_num : std::make_pair(size_dist(mt), size_dist(mt));
        int const selectable = select_dist(mt);
        int const cost_select = cost_dist(mt);
        int const cost_change = cost_dist(mt);

        std::vector<std::vector<point_type>> block(
            size.second,
            std::vector<point_type>(size.first, {-1, -1})
            );

        std::uniform_int_distribution<int> x_dist(0, size.first  - 1);
        std::uniform_int_distribution<int> y_dist(0, size.second - 1);
        for(int i=0; i<size.second; ++i)
        {
            for(int j=0; j<size.first; ++j)
            {
                int x, y;
                do
                {
                    x = x_dist(mt);
                    y = y_dist(mt);
                }
                while(!(block[y][x] == point_type{-1, -1}));

                block[y][x] = point_type{j, i};
            }
        }

        // テストデータ発行
        question_data question{
            problem_id,
            player_id,
            size,
            selectable,
            cost_select,
            cost_change,
            block
            };

        // 実行から評価まで
        algorithm algo;
        algo.reset(question);     // テストデータのセット

        // エミュレータ起動
        test_tool::emulator emu(question);

        // 評価保存先ファイルを開き,問題データを書き込む
        std::ofstream ofs(output_filename + std::to_string(n) + ".csv");
        ofs << "[Question]\n";
        for(auto const& line : block)
        {
            for(auto const& elem : line)
            {
                ofs << R"(")" << elem.x << "," << elem.y << R"(", )";
            }
            ofs << "\n";
        }
        ofs << "\n";

        ofs << "[Answer]\n";
        ofs << "回数,間違い位置数,コスト\n";

        int counter = 0;
        while(auto first_result = algo.get())  // 解答が受け取れる間ループ
        {
            // 評価
            auto const evaluate = emu.start(first_result.get());

            // 書出
            ofs << counter+1 << "," <<evaluate.wrong << "," << evaluate.cost << "\n";

            ++counter; // テストなので解答回数をカウントする必要あるかなと
        }
    }

    return 0;
}