From 4ad3947277123477203d01c3c015d46a673bf7d8 Mon Sep 17 00:00:00 2001
From: Thibaut Horel <thibaut.horel@gmail.com>
Date: Thu, 1 Mar 2012 13:34:30 -0800
Subject: More data set details

---
 experimental.tex | 22 ++++++++++++++--------
 1 file changed, 14 insertions(+), 8 deletions(-)

(limited to 'experimental.tex')

diff --git a/experimental.tex b/experimental.tex
index 127cd78..dfd4916 100644
--- a/experimental.tex
+++ b/experimental.tex
@@ -32,16 +32,16 @@ state-of-the-art, we use it to perform our data collection.
 \subsection{Data set}
 
 The original dataset consists of the sequence of all the frames where
-a skeleton was detected by the Microsoft SDK. For each frames the
+a skeleton was detected by the Kinect SDK. For each frames the
 following data is available:
 \begin{itemize}
 \item the 3D coordinates of 20 body joints
-\item a picture recored by the video camera
+\item a color picture recorded by the video camera
 \end{itemize}
 For some of frames, one or several joints are occluded by another part
 of the body. In those cases, the coordinates of these joints are
 either absent from the frame or present but tagged as \emph{Inferred}
-by the Microsoft SDK. It means that even though the joint is not
+by the Kinect SDK. It means that even though the joint is not
 present on the frame, the skeleton-fitting algorithm is able to guess
 its location.
 
@@ -64,17 +64,17 @@ Several reductions are then applied to the data set to extract
   computed. These are distances between two contiguous joints in the
   human body. If one of the two joints of a body part is not present
   or inferred in a frame, the corresponding body part is reported as
-  absent for that frame.
+  absent for the frame.
 \item the number of features is then reduced to 9 by using the
   vertical symmetry of the human body: if two body parts are symmetric
   about the vertical axis, we bundle them into one feature by
   averaging their lengths. If only one of them is present, we take the
   value of its counterpart. If none of them are present, the feature
-  is reported as missing for this frame. The resulting nine features
+  is reported as missing for the frame. The resulting nine features
   are: Head-ShoulderCenter, ShoulderCenter-Shoulder, Shoulder-Elbow,
   Elbow-Wrist, ShoulderCenter-Spine, Spine-HipCenter,
   HipCenter-HipSide, HipSide-Knee, Knee-Ankle.
-\item finally, all the frames where one of the 9 features is missing
+\item finally, all the frames where any of the 9 features is missing
   are filtered out.
 \end{itemize}
 
@@ -82,9 +82,15 @@ Table \ref{tab:dataset} summarizes some statistics about the resulting
 dataset.
 
 \begin{table}
-\begin{tabular}{cc}
-
+\begin{center}
+\begin{tabular}{l|r||l|l|l}
+Number of people & 25 & $k\leq 5$ & $5\leq k\leq 20$ & $k\geq 20$\\
+\hline
+Number of frames & 15945 & 1211 & 561 & 291 \\
+\hline
+Number of runs & 244 & \\
 \end{tabular}
+\end{center}
 \caption{}
 \label{tab:dataset}
 \end{table}
-- 
cgit v1.2.3-70-g09d2

