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docs/book/introduction.tex

@@ -49,23 +49,23 @@ \section{Background}
 
 Laser range-finding instruments such as the Mars Orbital Laser
 Altimeter (MOLA) \citep{1992JGR....97.7781Z,2001JGR...10623689S}
-has significantly advanced the study of the Martian surface by
+has significantly advanced the study of the Martian surface by
 providing geologists with a highly accurate elevation map of the
 entire planet.  The upcoming Lunar Orbital Laser Altimeter (LOLA)
 \citep{2008AGUFM.P31B1419N,2007SSRv..129..391C} will achieve similar
 results for the Moon.  However, MOLA topographic products are limited
 in resolution (463~m/pixel at the equator).  This, coupled with
 localized interpolation artifacts in some regions due to sparse
 laser data, have rendered MOLA products insufficient for detailed
-studies of specific sites; e.g. geologic stratification and deposition
+studies of specific sites; e.g. geologic stratification and deposition
 analysis, or in the case of mission planning, landing site selection.
 
 The most common technique for obtaining higher-resolution digital
 terrain models (DTMs) is to employ stereogrammetric techniques.
 However, existing processing techniques on photogrammetric
 workstations are extremely human intensive and expensive.  The
 substantial number of man-hours and resources required for this
-aproach has meant that relatively few of the existing stereo image
+approach has meant that relatively few of the existing stereo image
 pairs have been processed, hence very few of these data products have
 reached the scientific community.
 
@@ -91,11 +91,11 @@ \section{Operation with the USGS Integrated Software for Imagers and Spectromete
 imagery \cite{2004LPI....35.2039A, 1997LPI....28..387G, ISIS_website}.
 
 The Stereo Pipeline provides an advanced stereo image processing
-capability for ISIS.  It supports the ISIS ``cube'' file fromat, and
+capability for ISIS.  It supports the ISIS ``cube'' file format, and
 can make use of the ISIS camera models and ancillary information
 (i.e. SPICE kernels) for imagers on many NASA spacecraft.  This tight
 integration with ISIS allows scientists to prepare data and perform
-stereo porcessing using the familiar ISIS toolchain.  Another benefit
+stereo processing using the familiar ISIS toolchain.  Another benefit
 is that new sensor models are available in the ASP as soon as they are
 developed for ISIS.  In principal, by leveraging the wealth of
 different camera models in ISIS, stereo processing can even be carried