Software
In my research, I've developed a few tools that may be of interest to the broader community.
-
Matlab
- videoIO Library [@sourceforge.net]:
A library providing easy, flexible, and efficient read/write access to video
files using a wide variety of codecs in MATLAB on Windows and GNU/Linux
platforms. On Windows, DirectShow is used and on GNU/Linux, ffmpeg is
used. Both platforms now support reading frames from individual files
using an imread or load plugin as well.
-
My MatlabCentral Page: The following files and libraries
have been released on the MatlabCentral website. They are sorted
according to the total number of downloads (as of 17 Sept. 2007).
-
split: Splits a delimited string into a cell
array.
-
printf, stdout, stderr: Convenience
functions for text output (printf, stdout, and stderr).
-
videoIO Toolbox for Matlab: Read and write
videos on Windows and Linux efficiently and with broad codec support.
- Note: the
sourceforge.net
project is updated more frequently than the MatlabCentral
version.
- Note: the
sourceforge.net
project is updated more frequently than the MatlabCentral
version.
-
join: Concatenates a set of strings, with a
delimiter between each string.
-
assert.m: Assert function that expands like
the C macro assert.
- Note: starting in about R2007a, Mathworks
has built assertions into the language in a way that works like
assert macros in C. Unless you need to support older versions
of Matlab, I highly recommend you use their version instead of this
one.
- Note: starting in about R2007a, Mathworks
has built assertions into the language in a way that works like
assert macros in C. Unless you need to support older versions
of Matlab, I highly recommend you use their version instead of this
one.
-
chunkify: Splits a vector or cell array into
evenly-sized chunks.
-
mtx2charcell: Converts a matrix of numbers
into a cell array of strings.
-
parseEnum: Looks up values associated with a
given string.
-
collapse.m: Removes degenerate portions of a
cell array tree.
-
globalLoad.m: Loads a .mat file's variables
into the global namespace.
-
rsplit.m: Splits a delimited string into a
cell array using a regular expression.
-
split: Splits a delimited string into a cell
array.
- videoIO Library [@sourceforge.net]:
A library providing easy, flexible, and efficient read/write access to video
files using a wide variety of codecs in MATLAB on Windows and GNU/Linux
platforms. On Windows, DirectShow is used and on GNU/Linux, ffmpeg is
used. Both platforms now support reading frames from individual files
using an imread or load plugin as well.
- C++
- CUDA port of the Dalal and Triggs HOG pedestrian detector [.zip]
- Date: 14 July 2009
- Description: We are sharing our modified version of Dalal and
Trigg's HOG-based pedestrian detector. We have ported key portions
of the algorithm to work on NVidia graphics cards. On
high-definition video, we see up to a 76x speedup versus the CPU-only
version (Core i7 920 and a GeForce GTX 280).
- vtkKDTreePointLocator [.h][.cxx]
- Date: 3 April 2003
- Description: A subclass of vtkPointLocator that uses a kD-Tree to perform nearest-neighbor searches. At the present time, only the FindClosestPoint searching method has been implemented, but the other standard methods should be quite easy to do.
- Usage Restrictions: These files may be used under the (slightly modified) standard VTK copyright present at the top of each file. These restrictions are much more lenient than for the majority of the files posted here.
- Older Versions:
- CCSVFile [.h][.cpp]
- Date: Before 6 February 2003
- Description: A simple class for reading and writing delimited text files like CSV (comma separated variable) files. Think of the text files that Excel can import and export. I have found this class to be helpful in designing and parsing configuration files when a program gets too complicated to simply use command line parameters.
- CUDA port of the Dalal and Triggs HOG pedestrian detector [.zip]
- Scheme
- There are a few Scheme utilities I developed while teaching the MIT 6.001 course (Structure and Interpretation of Computer Programs).