First complete draft
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@@ -1,18 +1,18 @@
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\section{Color calibration}
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\section{Color Calibration}
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All our detection algorithms require color calibration, and when the lighting
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conditions on the field change, colors might have to be newly calibrated. For
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us this meant that a tool was necessary, that could simplify this process as
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far as possible. For this reason, we implemented a small OpenCV-based program,
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that we called \verb|Colorpicker|. This program can access various video
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sources, as well as use still images for calibration. The main interface
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contains the sliders for adjusting the HSV interval, as well as the video area,
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conditions on the field change, colors might have to be recalibrated. For us
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this meant that a tool was necessary, that could simplify this process as far
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as possible. For this reason, we implemented a small OpenCV-based program, that
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we called \verb|Colorpicker|. This program can access various video sources, as
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well as use still images for calibration. The main interface contains the
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sliders for adjusting the HSV interval, as well as the video area,
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demonstrating the resulting binary mask. The colors can be calibrated for three
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targets: ball, goal and field; and the quality of detection, depending on the
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chosen target is demonstrated. When the program is closed, the calibration
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values are automatically saved to the settings file \verb|nao_defaults.json|.
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The interface of the Colorpicker is demonstrated in the figure \ref{p figure
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colorpicker}.
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chosen target is demonstrated in the tool's video area. When the program is
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closed, the calibration values are automatically saved to the settings file
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\verb|nao_defaults.json|. The interface of the Colorpicker is demonstrated in
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the figure \ref{p figure colorpicker}.
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\begin{figure}[ht]
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\includegraphics[width=\textwidth]{\fig colorpicker}
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@@ -1,6 +1,6 @@
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\chapter{Implementation details}
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\chapter{Implementation Details}
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\section{Code organization}
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\section{Code Organization}
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Our code is organized as a standard Python package. The following command can
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be used to make the robot run the whole goal scoring sequence:
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@@ -32,7 +32,7 @@ The main logic of our implementation can be found in the following files:
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or video files.
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\item \verb|movements.py| implements convenience movements-related function,
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such as walking and kick.
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such as walking and also the kick.
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\item \verb|nao_defaults.json| stores all project-global settings, such as
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the IP-address of the robot, or color calibration results.
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@@ -16,4 +16,6 @@ the playback speed of the videos needed to be adjusted afterwards using video
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editing programs. Furthermore, due to computational resource limitations of the
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Nao, the frames could have been captured only in low resolution. However, the
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quality of the resulting videos was sufficient for successful debugging and
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also for the presentation.
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also for the presentation. Some of the illustrations for this report, such as
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the figure \ref{p figure direct-approach} for example, were created with the
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help of those videos.
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@@ -1,4 +1,4 @@
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\section{Text to speech}
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\section{Text to Speech}
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During the implementation of our solution for the objective stated in \ref{sec
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problem statement} we included suitable functions to get a feedback about
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@@ -12,7 +12,7 @@ the program by running it in a separate thread. We also ensured, that the robot
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does not repeat the same sentence over and over again, if he remains in the
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same state.
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\section{Goal confirmation}
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\section{Goal Confirmation}
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It makes sense to let the robot check, if he has actually scored a goal after
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he performed a goal kick. We therefore implemented a simple goal confirmation
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