#include?“DenseTrack.h“
#include?“Descriptors.h“
#include?“Initialize.h“

IplImageWrapper?image?prev_image?grey?prev_grey;
IplImagePyramid?grey_pyramid?prev_grey_pyramid?eig_pyramid;

CvCapture*?capture?=?0;
float*?fscales?=?0;?//?float?scale?values
int?show_track?=?0;?//?set?show_track?=?1?if?you?want?to?visualize?the?trajectories

int?main（?int?argc?char**?argv?）
{
	int?frameNum?=?0;
	TrackerInfo?tracker;
	DescInfo?hogInfo;
	DescInfo?hofInfo;
	DescInfo?mbhInfo;

	char*?video?=?argv[1];
	arg_parse（argc?argv）;

//	std::cerr?<ame:?“?<ame?<ame:?“?<ame?<//	std::cerr?<
	InitTrackerInfo（&tracker?track_length?init_gap）;
	InitDescInfo（&hogInfo?8?0?1?patch_size?nxy_cell?nt_cell）;
	InitDescInfo（&hofInfo?9?1?1?patch_size?nxy_cell?nt_cell）;
	InitDescInfo（&mbhInfo?8?0?1?patch_size?nxy_cell?nt_cell）;

	capture?=?cvCreateFileCapture（video）;

	if（?!capture?）?{?
		printf（?“Could?not?initialize?capturing..\n“?）;
		return?-1;
	}

	if（?show_track?==?1?）
		cvNamedWindow（?“DenseTrack“?0?）;

	std::vector?>?xyScaleTracks;
	int?init_counter?=?0;?//?indicate?when?to?detect?new?feature?points
	while（?true?）?{
		IplImage*?frame?=?0;
		int?i?j?c;

		//?get?a?new?frame
		frame?=?cvQueryframe（?capture?）;
		if（?!frame?）?{
			//printf（“break“）;
			break;
		}
		if（?frameNum?>=?start_frame?&&?frameNum?<=?end_frame?）?{
		if（?!image?）?{
			//?initailize?all?the?buffers
			image?=?IplImageWrapper（?cvGetSize（frame）?8?3?）;
			image->origin?=?frame->origin;
			prev_image=?IplImageWrapper（?cvGetSize（frame）?8?3?）;
			prev_image->origin?=?frame->origin;
			grey?=?IplImageWrapper（?cvGetSize（frame）?8?1?）;
			grey_pyramid?=?IplImagePyramid（?cvGetSize（frame）?8?1?scale_stride?）;
			prev_grey?=?IplImageWrapper（?cvGetSize（frame）?8?1?）;
			prev_grey_pyramid?=?IplImagePyramid（?cvGetSize（frame）?8?1?scale_stride?）;
			eig_pyramid?=?IplImagePyramid（?cvGetSize（frame）?32?1?scale_stride?）;

			cvCopy（?frame?image?0?）;
			cvCvtColor（?image?grey?CV_BGR2GRAY?）;
			grey_pyramid.rebuild（?grey?）;

			//?how?many?scale?we?can?have
			scale_num?=?std::min（scale_num?grey_pyramid.numOfLevels（））;
			fscales?=?（float*）cvAlloc（scale_num*sizeof（float））;
			xyScaleTracks.resize（scale_num）;

			for（?int?ixyScale?=?0;?ixyScale?				std::list&?tracks?=?xyScaleTracks[ixyScale];
				fscales[ixyScale]?=?pow（scale_stride?ixyScale）;

				//?find?good?features?at?each?scale?separately
				IplImage?*grey_temp?=?0?*eig_temp?=?0;
				std::size_t?temp_level?=?（std::size_t）ixyScale;
				grey_temp?=?cvCloneImage（grey_pyramid.getImage（temp_level））;
				eig_temp?=?cvCloneImage（eig_pyramid.getImage（temp_level））;
				std::vector?points（0）;
				cvDenseSample（grey_temp?eig_temp?point