eine neue runde eine neue reviewfahrt

tex_review/chapters/relatedwork.tex

@@ -51,6 +51,23 @@ Using large triangles reduces the memory footprint dramatically (a few megabytes
 while still increasing the quality (triangle-edges directly adhere to architectural-edges) and allows
 for truly continuous transitions along the surface spanned by all triangles. 
 
+%activity recognition
+\addy{To go into the third dimension, cf. walking continuously along stairs, using barometer. The most basic approach is using absolute pressure, however this value highly differs between single buildings. Thus relative approaches initializing with a zero pressure or using a sliding window are more often integrated into the movement model, as it provides continuous updates with every incoming barometer reading. Thanks to the underlying mesh, the pedestrians current activity can also be used to provide continues floor changes. This is done by assigning different types to the triangles of the mesh, e.g. stair, floor or elevator. Depending on the recognized activity, the system is now able to allow or restrict the movement in certain areas of the building. }
+
+\addy{In recent years, many different activity recognition approaches could be presented for wearable sensors \cite{}. 
+They occur in a wide variety of scenarios, such as in sports or in the health sector. 
+As modern smartphones become more and more powerful, classical approaches to pattern recognition can now be adapted directly. 
+Nevertheless, in context of this work 
+%
+%
+Many different activity recognition approaches
+%
+a aufwendige trainingsphase, as they are ... based on classical vorgehensweise von pattern recognition
+%
+In contrast to raw barometer data... more stable ...}
+
+
+
 %eval - wifi, fingerprinting
 The outcomes of the state evaluation process depend highly on the used sensors. 
 Most smartphone-based systems are using received signal strength indications (RSSI) given by \docWIFI{} or Bluetooth as a source for absolute positioning information.