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fruc_main.cpp
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fruc_main.cpp
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/****************************************************************************/
/* Motion-Compensated Frame-Rate Up-Conversion */
/****************************************************************************/
/* */
/*Features: */
/*Motion Estimation Methods: */
/* 3DRS */
/* An Adaptive True Motion Estimation (ATME) */
/* Bi-lateral Search (with initial vector selection) */
/* Full-Search */
/*Up-Conversion Methods: */
/* -Motion Compensated Field Averaging */
/* -Motion Compensated Field Averaging for Bilateral Search */
/* -Dynamic Median Filtering */
/* -Static Median Filtering */
/* -Two Mode Interpolation with Occlusion Detection using the Vector Field */
/* -OBMC */
/* -Motion Compensation for Video Coding */
/* */
/*Option to up-convert input video by a conversion factor of 2 */
/*or re-generate and overwrite the even numbered frames for testing */
/* */
/* Coder: Mert CETIN (mertc at sabanciuniv dot edu) */
/* */
/* Sabanci University */
/* Faculty of Engineering and Natural Sciences */
/* System on Chip Design and Testing Group */
/* http://fens.sabanciuniv.edu/soclab/ */
/* */
/* All Rights Reserved */
/* Please Do Not Use Without This Header */
/* */
/****************************************************************************/
#include "config.h"
#include <iostream>
#include <string>
#include "randgen.h"
#include <math.h>
#include <algorithm>
#include "fruc_def.h"
#include "rand31-park-miller-carta-int.c"
using namespace std;
/*--------------------------------------------------------------------------*/
/* program entry point */
/* opens input and output files sets relevant file pointers */
/* reads input video file data into 2D arrays inside a loop and */
/* calls relevant motion estimation and up-conversion functions accordingly */
/* writes image data into output files */
/* runs comparison procedure and outputs the results */
/*--------------------------------------------------------------------------*/
int main()
{
Config::reload("config.txt");
FILE *infile;
FILE *MVs_File_out;
FILE *SAD_File_out;
FILE *bi_MVs_File_out;
FILE *outvid;
FILE *MV_X;
FILE *MV_Y;
mvectors = (vector*) malloc((Config::image_height/Config::blocksize)*(Config::image_width/Config::blocksize)*sizeof vector);
interMVs = (vector*) malloc((Config::image_height/Config::blocksize)*(Config::image_width/Config::blocksize)*sizeof vector);
SAD_Values = new unsigned int[(Config::image_height/Config::blocksize)*(Config::image_width/Config::blocksize)] ;
if((infile = fopen(Config::input_video.c_str(), "rb")) == NULL) {
printf("Error : Input file could not be opened\n");
return 1;
}
if((MVs_File_out = fopen(Config::MVs_filename.c_str(), "w")) == NULL) {
printf("Error : Output file could not be opened\n");
return 1;
}
if((SAD_File_out = fopen("SADs.txt", "w")) == NULL) {
printf("Error : Output file could not be opened\n");
return 1;
}
if((MV_X = fopen(Config::MV_X_file.c_str(), "w")) == NULL) {
printf("Error : Output file could not be opened\n");
return 1;
}
if((MV_Y = fopen(Config::MV_Y_file.c_str(), "w")) == NULL) {
printf("Error : Output file could not be opened\n");
return 1;
}
if((bi_MVs_File_out = fopen(Config::Bi_MVs_filename.c_str(), "w")) == NULL) {
printf("Error : Output file could not be opened\n");
return 1;
}
if((outvid = fopen(Config::output_video.c_str(), "wb")) == NULL) {
printf("Error : Output file could not be opened\n");
return 1;
}
if((vectortest = fopen("vectortest.txt", "w")) == NULL) {
printf("Error : Output file could not be opened\n");
return 1;
}
int i,j;
unsigned char* data1 = new unsigned char[Config::image_height*Config::image_width];
unsigned char* data2 = new unsigned char[Config::image_height*Config::image_width];
unsigned char *ResizedFrame1, *ResizedFrame2;
rand31pmc_seedi(1); // seed LFSR with 1
int s_count = Config::candidate_count;
int ext_s_count = Config::ext_candidate_count;
int up_conv_algo = Config::up_conversion_algo;
vector* s_locs;
s_locs = new vector[s_count];
for(i=0;i<s_count;i++){
s_locs[i].x = Config::search_location_list[2*i];
s_locs[i].y = Config::search_location_list[2*i+1];
}
vector* ext_s_locs;
ext_s_locs = new vector[ext_s_count];
for(i=0;i<ext_s_count;i++){
ext_s_locs[i].x = Config::ext_search_location_list[2*i];
ext_s_locs[i].y = Config::ext_search_location_list[2*i+1];
}
/*int s_count;
fscanf(variables,"%d",&s_count);
vector* s_locs;
s_locs = new vector[s_count];
for(i=0;i<s_count;i++){
fscanf(variables,"%d",&(s_locs[i].x));
fscanf(variables,"%d",&(s_locs[i].y));
}*/
firstframe = true;
secondframe = true;
// write first frame to output directly
for (i=0;i<Config::image_height;i++){
fread(&data1[INDEX(i,0)], sizeof(unsigned char), Config::image_width, infile);
fwrite(&data1[INDEX(i,0)],sizeof(unsigned char), Config::image_width, outvid);
}
ResizedFrame1 = ResizeFrame(data1);
/* DEBUG - write first resized frame to file */
//for (i=0;i<(Config::image_height+2*Config::fs_win);i++){
// fwrite(&ResizedFrame1[i*(Config::image_width+2*Config::fs_win)],sizeof(unsigned char), (Config::image_width+2*Config::fs_win), resized_test_out);
//}
/* */
int loopcount;
if(Config::enable_rep)
loopcount = Config::framecount/4;
else
loopcount = Config::framecount/2;
if (Config::enable_rep) // if replace even numbered frames with up-converted ones
{
fseek(infile,Config::total_y,SEEK_CUR); // skip the second frame
}
printf("Interpolating: ");
for (j=0;j<loopcount;j++)
{
printf("\b\b\b%03d",j*4); // display current frame number
// read the next frame
for (int i=0;i<Config::image_height;i++){
fread(&data2[INDEX(i,0)], sizeof(unsigned char), Config::image_width, infile);
}
// resize
ResizedFrame2 = ResizeFrame(data2);
// process motion estimation stage
if (Config::bi_fs)
{
if (Config::first_fs && firstframe)
frameFullSearch(ResizedFrame2,ResizedFrame1,MVs_File_out,MV_X,MV_Y);
else
{
calcFrame3DRS(ResizedFrame2,ResizedFrame1,MVs_File_out,MV_X,MV_Y,s_count,ext_s_count,s_locs,ext_s_locs,SAD_File_out);
}
frameBiFullSearch(ResizedFrame2,ResizedFrame1,bi_MVs_File_out);
}
else if (Config::all_fs)
{
frameFullSearch(ResizedFrame2,ResizedFrame1,MVs_File_out,MV_X,MV_Y);
}
else if(Config::first_fs && firstframe)
frameFullSearch(ResizedFrame2,ResizedFrame1,MVs_File_out,MV_X,MV_Y);
else
{
firstpass = true;
for (i=0;i<Config::passcount;i++){
calcFrame3DRS(ResizedFrame2,ResizedFrame1,MVs_File_out,MV_X,MV_Y,s_count,ext_s_count,s_locs,ext_s_locs,SAD_File_out);
firstpass = false;
}
}
// process frame interpolation
if(up_conv_algo == 1)
{
mc_field_average(ResizedFrame2,ResizedFrame1,outvid);
}
else if(up_conv_algo == 2)
{
DynMedian(ResizedFrame2,ResizedFrame1,outvid);
}
else if (up_conv_algo == 3)
{
two_mode_interpolate(ResizedFrame2,ResizedFrame1,outvid);
}
else if (up_conv_algo == 4)
{
bi_mc_field_average(ResizedFrame2,ResizedFrame1,outvid);
}
else if (up_conv_algo == 5)
{
obmc(ResizedFrame2,ResizedFrame1,outvid);
}
else if (up_conv_algo == 6)
{
motion_compensate(ResizedFrame2,ResizedFrame1,outvid);
}
else if(up_conv_algo == 7)
{
StaMedian(ResizedFrame2,ResizedFrame1,outvid);
}
// write next frame to output directly (odd numbered frame)
if(up_conv_algo != 6)
{
for (i=0;i<Config::image_height;i++){
fwrite(&data2[INDEX(i,0)],sizeof(unsigned char), Config::image_width, outvid);
}
}
// if last frame
if (j == loopcount-1){
if(up_conv_algo != 6)
{
for (i=0;i<Config::image_height;i++){
fread(&data1[INDEX(i,0)], sizeof(unsigned char), Config::image_width, infile);
fwrite(&data1[INDEX(i,0)],sizeof(unsigned char), Config::image_width, outvid);
}
}
break;
}
// if not, exchange the image data pointers and continue the process
else {
if (Config::enable_rep) // if replace even numbered frames with up-converted ones
{
fseek(infile,Config::total_y,SEEK_CUR); // skip the second frame
}
for (i=0;i<Config::image_height;i++){
fread(&data1[INDEX(i,0)], sizeof(unsigned char), Config::image_width, infile);
}
ResizedFrame1 = ResizeFrame(data1);
if (Config::all_fs)
{
frameFullSearch(ResizedFrame1,ResizedFrame2,MVs_File_out,MV_X,MV_Y);
}
else if (Config::bi_fs)
{
calcFrame3DRS(ResizedFrame1,ResizedFrame2,MVs_File_out,MV_X,MV_Y,s_count,ext_s_count,s_locs,ext_s_locs,SAD_File_out);
frameBiFullSearch(ResizedFrame1,ResizedFrame2,bi_MVs_File_out);
}
else
{
firstpass = true;
for (i=0;i<Config::passcount;i++){
calcFrame3DRS(ResizedFrame1,ResizedFrame2,MVs_File_out,MV_X,MV_Y,s_count,ext_s_count,s_locs,ext_s_locs,SAD_File_out);
firstpass = false;
}
}
if(up_conv_algo == 1)
{
mc_field_average(ResizedFrame1,ResizedFrame2,outvid);
}
else if(up_conv_algo == 2)
{
DynMedian(ResizedFrame1,ResizedFrame2,outvid);
}
else if (up_conv_algo == 3)
{
two_mode_interpolate(ResizedFrame1,ResizedFrame2,outvid);
}
else if (up_conv_algo == 4)
{
bi_mc_field_average(ResizedFrame1,ResizedFrame2,outvid);
}
else if (up_conv_algo == 5)
{
obmc(ResizedFrame1,ResizedFrame2,outvid);
}
else if (up_conv_algo == 6)
{
motion_compensate(ResizedFrame1,ResizedFrame2,outvid);
}
else if(up_conv_algo == 7)
{
StaMedian(ResizedFrame1,ResizedFrame2,outvid);
}
if(up_conv_algo != 6)
{
for (i=0;i<Config::image_height;i++){
fwrite(&data1[INDEX(i,0)],sizeof(unsigned char), Config::image_width, outvid);
}
}
if (Config::enable_rep) // if replace even numbered frames with up-converted ones
{
fseek(infile,Config::total_y,SEEK_CUR); // skip the second frame
}
}
}
// close file pointers
fclose(infile);
fclose(MVs_File_out);
fclose(SAD_File_out);
fclose(MV_X);
fclose(MV_Y);
fclose(bi_MVs_File_out);
fclose(outvid);
fclose(vectortest);
/************************************************************************/
/* Comparison Test and PSNR Output */
/************************************************************************/
FILE *results;
//FILE *resultsSAD;
FILE *infile1;
FILE *infile2;
if((results = fopen(Config::results_file.c_str(), "a")) == NULL) {
printf("Error : Output file could not be opened\n");
return 1;
}
//if((resultsSAD = fopen("SAD.txt", "w")) == NULL) {
// printf("Error : Output file could not be opened\n");
// return 1;
//}
if((infile1 = fopen(Config::input_video.c_str(), "rb")) == NULL) {
printf("Error : Input file 1 could not be opened\n");
return 1;
}
if((infile2 = fopen(Config::output_video.c_str(), "rb")) == NULL) {
printf("Error : Input file 2 could not be opened\n");
return 1;
}
int f,framesgenerated;
double SqError,MSE,TotMSE;
TotMSE = 0.0;
framesgenerated = 0;
printf("\nComparing: ");
for (f=0;f<Config::framecount;f++){
SqError = 0.0;
MSE = 0.0;
printf("\b\b\b%03d",f);
for (i=0;i<Config::image_height;i++){
fread(&data1[INDEX(i,0)], sizeof(unsigned char), Config::image_width, infile1);
fread(&data2[INDEX(i,0)], sizeof(unsigned char), Config::image_width, infile2);
}
/* for (i=0;i<Config::image_height;i++){
if(Config::up_conversion_algo==6 && Config::enable_rep == 1)
{
if(f == 0 || f == Config::framecount/2)
{
fread(&data1[INDEX(i,0)], sizeof(unsigned char), Config::image_width, infile1);
}
else
{
fseek(infile1,Config::total_y,SEEK_CUR);
fread(&data1[INDEX(i,0)], sizeof(unsigned char), Config::image_width, infile1);
}
}
else
fread(&data1[INDEX(i,0)], sizeof(unsigned char), Config::image_width, infile1);
fread(&data2[INDEX(i,0)], sizeof(unsigned char), Config::image_width, infile2);
}*/
for (i=0;i<Config::image_height;i++){
for (j=0;j<Config::image_width;j++){
SqError = SqError + pow(double(data1[INDEX(i,j)] - data2[INDEX(i,j)]),2);
}
}
MSE = SqError / (Config::image_height*Config::image_width);
if (MSE != 0) framesgenerated++;
TotMSE += MSE;
/*if( Config::up_conversion_algo==6 && Config::enable_rep == 1 && f == (Config::framecount / 2))
break;*/
}
//printf("\n");
if(TotMSE == 0)
fprintf (results,"PSNR: %s\t\tSAD Count: %d\n",Config::enable_rep?"infinity":"N/A",SADcount);
else
{
if(Config::enable_rep || up_conv_algo == 6)
{
fprintf(results,"PSNR: %3.4f\t\tSAD Count: %d\n",10.0*log10((255.0*255.0)/(TotMSE/framesgenerated)),SADcount);
/*fprintf(results,"%3.4f",10.0*log10((255.0*255.0)/(TotMSE/framesgenerated)));
fprintf(resultsSAD,"%d",SADcount);*/
// fprintf(results,"Total PSNR: %3.4f\t\t Generated Frames Only PSNR: %3.4f\t\t%d\n",10.0*log10((255.0*255.0)/(TotMSE/f)),10.0*log10((255.0*255.0)/(TotMSE/framesgenerated)),SADcount);
}
else
fprintf(results,"PSNR: N/A\t\tSAD Count: %d\n",SADcount);
}
delete [] data1 ;
delete [] data2 ;
delete [] ResizedFrame1;
delete [] ResizedFrame2;
free(interMVs);
free(mvectors);
fclose(infile1);
fclose(infile2);
fclose(results);
//fclose(resultsSAD);
return(0);
}
/*------------------------------------------------------------------------------*/
/*Dynamic Median Filter caller function */
/*Calls Dynamic Median Filter calculator function for every pixel in the frame */
/*and writes generated image data into output video file */
/*------------------------------------------------------------------------------*/
void DynMedian(unsigned char* curData, unsigned char* refData, FILE* outvid){
unsigned char* tempframe = new unsigned char[Config::image_width*Config::image_height];
int i,j;
for (i=0;i<Config::image_height;i++){
for (j=0;j<Config::image_width;j++){
if (i<1072)
{
tempframe[INDEX(i,j)] = DynMedian_Pixel(curData,refData,i,j);
}
else
{
tempframe[INDEX(i,j)] = (refData[R_INDEX(i,j)]+curData[R_INDEX(i,j)])/2;
}
}
}
for (i=0;i<Config::image_height;i++){
fwrite(&tempframe[INDEX(i,0)],sizeof(unsigned char), Config::image_width,outvid);
}
delete [] tempframe;
}
/*------------------------------------------------------------------------------*/
/*Static Median Filter caller function */
/*Calls Static Median Filter calculator function for every pixel in the frame */
/*and writes generated image data into output video file */
/*------------------------------------------------------------------------------*/
void StaMedian(unsigned char* curData, unsigned char* refData, FILE* outvid){
unsigned char* tempframe = new unsigned char[Config::image_width*Config::image_height];
int i,j;
for (i=0;i<Config::image_height;i++){
for (j=0;j<Config::image_width;j++){
if (i<1072)
{
tempframe[INDEX(i,j)] = StaMedian_Pixel(curData,refData,i,j);
}
else
{
tempframe[INDEX(i,j)] = (refData[R_INDEX(i,j)]+curData[R_INDEX(i,j)])/2;
}
}
}
for (i=0;i<Config::image_height;i++){
fwrite(&tempframe[INDEX(i,0)],sizeof(unsigned char), Config::image_width,outvid);
}
delete [] tempframe;
}
/*------------------------------------------------------------------------------------------------------*/
/*Dynamic Median Filter calculator function */
/*calculate two motion compensated pixel data one from previous one from current frames */
/*and median them with non-motion compensated interpolated pixel data from previous and current frames */
/*------------------------------------------------------------------------------------------------------*/
unsigned char DynMedian_Pixel(unsigned char* curData, unsigned char* refData, int rowpxpos, int colpxpos){
unsigned char result[3];
vector avg_vector;
avg_vector=mvectors[((rowpxpos/Config::blocksize)*(BLOCK_COUNT_OF_ROW))+(colpxpos/Config::blocksize)];
result[0]= refData[R_INDEX((rowpxpos-(avg_vector.y/2)),(colpxpos-(avg_vector.x/2)))];
result[1]= curData[R_INDEX((rowpxpos+(avg_vector.y/2)),(colpxpos+(avg_vector.x/2)))];
result[2]= (refData[R_INDEX(rowpxpos,colpxpos)] + curData[R_INDEX(rowpxpos,colpxpos)])/2;
if (result[0] > result[1]){
if (result[0] > result[2]){
if (result[1] > result[2]) return result[1];
else return result[2];
}
else return result[0];
}
else{
if (result[0] < result[2]){
if (result[1] < result[2]) return result[1];
else return result[2];
}
else return result[0];
}
}
/*------------------------------------------------------------------------------------------------------*/
/*Static Median Filter calculator function */
/*calculate two non-motion compensated pixel data one from previous one from current frames */
/*and median them with motion compensated pixel data from previous and current frames */
/*------------------------------------------------------------------------------------------------------*/
unsigned char StaMedian_Pixel(unsigned char* curData, unsigned char* refData, int rowpxpos, int colpxpos){
unsigned char result[3];
vector avg_vector;
avg_vector=mvectors[((rowpxpos/Config::blocksize)*(BLOCK_COUNT_OF_ROW))+(colpxpos/Config::blocksize)];
//result[0]= refData[R_INDEX((rowpxpos-(avg_vector.y/2)),(colpxpos-(avg_vector.x/2)))];
//result[1]= curData[R_INDEX((rowpxpos+(avg_vector.y/2)),(colpxpos+(avg_vector.x/2)))];
//result[2]= (refData[R_INDEX(rowpxpos,colpxpos)] + curData[R_INDEX(rowpxpos,colpxpos)])/2;
result[0]= refData[R_INDEX(rowpxpos,colpxpos)];
result[1]= curData[R_INDEX(rowpxpos,colpxpos)];
result[2]= ((refData[R_INDEX((rowpxpos-(avg_vector.y/2)),(colpxpos-(avg_vector.x/2)))])+curData[R_INDEX((rowpxpos+(avg_vector.y/2)),(colpxpos+(avg_vector.x/2)))])/2;
if (result[0] > result[1]){
if (result[0] > result[2]){
if (result[1] > result[2]) return result[1];
else return result[2];
}
else return result[0];
}
else{
if (result[0] < result[2]){
if (result[1] < result[2]) return result[1];
else return result[2];
}
else return result[0];
}
}
/*------------------------------------------------------------------------------------------------------*/
/*Motion Compensated Field Averaging calculator function */
/*calculate two motion compensated pixel data one from previous one from current frames */
/*and interpolate them by 50% */
/*------------------------------------------------------------------------------------------------------*/
unsigned char mc_field_average_pixel(unsigned char* curData, unsigned char* refData, int rowpxpos, int colpxpos){
unsigned char field_average;
vector avg_vector;
avg_vector=mvectors[((rowpxpos/Config::blocksize)*(BLOCK_COUNT_OF_ROW))+(colpxpos/Config::blocksize)];
if(rowpxpos<1072)
{
field_average = ((refData[R_INDEX((rowpxpos-(avg_vector.y/2)),(colpxpos-(avg_vector.x/2)))])+curData[R_INDEX((rowpxpos+(avg_vector.y/2)),(colpxpos+(avg_vector.x/2)))])/2;
}
else
field_average = (refData[R_INDEX(rowpxpos,colpxpos)]+curData[R_INDEX(rowpxpos,colpxpos)])/2;
return field_average;
}
/*------------------------------------------------------------------------------*/
/*Motion Compensation for Video Coding caller function */
/*Calls Motion Compensation calculator function for every pixel in the frame */
/*and writes generated image data into output video file */
/*------------------------------------------------------------------------------*/
void motion_compensate(unsigned char* curData, unsigned char* refData, FILE* outvid){
unsigned char* tempframe = new unsigned char[Config::image_width*Config::image_height];
int i,j;
for (i=0;i<Config::image_height;i++){
for (j=0;j<Config::image_width;j++){
if (i<1072)
{
tempframe[INDEX(i,j)] = motion_compensate_pixel(curData,refData,i,j);
}
else
{
tempframe[INDEX(i,j)] = refData[R_INDEX(i,j)];
}
}
}
for (i=0;i<Config::image_height;i++){
fwrite(&tempframe[INDEX(i,0)],sizeof(unsigned char), Config::image_width,outvid);
}
delete [] tempframe;
}
/*------------------------------------------------------------------------------------------------------*/
/*Motion Compensation for Video Coding calculator function */
/*use the MV data for the current frame to interpolate using only the previous frame's image data */
/*------------------------------------------------------------------------------------------------------*/
unsigned char motion_compensate_pixel(unsigned char* curData, unsigned char* refData, int rowpxpos, int colpxpos){
unsigned char compensated;
vector avg_vector;
avg_vector=mvectors[((rowpxpos/Config::blocksize)*(BLOCK_COUNT_OF_ROW))+(colpxpos/Config::blocksize)];
compensated = refData[R_INDEX((rowpxpos-(avg_vector.y)),(colpxpos-(avg_vector.x)))];
return compensated;
}
/*------------------------------------------------------------------------------------------------------*/
/*Motion Compensated Field Averaging for Bilateral ME calculator function */
/*calculate two motion compensated pixel data one from previous one from current frames */
/*and interpolate them by 50% */
/*this function should only be used when MVs returned from bilateral ME function are not multiplied by 2*/
/*------------------------------------------------------------------------------------------------------*/
unsigned char bi_mc_field_average_pixel(unsigned char* curData, unsigned char* refData, int rowpxpos, int colpxpos){
unsigned char field_average;
vector avg_vector;
avg_vector=interMVs[((rowpxpos/Config::blocksize)*(BLOCK_COUNT_OF_ROW))+(colpxpos/Config::blocksize)];
//avg_vector=mvectors[((rowpxpos/Config::blocksize)*(BLOCK_COUNT_OF_ROW))+(colpxpos/Config::blocksize)];
field_average = ((refData[R_INDEX((rowpxpos-(avg_vector.y)),(colpxpos-(avg_vector.x)))])+curData[R_INDEX((rowpxpos+(avg_vector.y)),(colpxpos+(avg_vector.x)))])/2;
return field_average;
}
/*------------------------------------------------------------------------------*/
/*Motion Compensated Field Averaging caller function */
/*Calls MC Field Averaging calculator function for every pixel in the frame */
/*and writes generated image data into output video file */
/*------------------------------------------------------------------------------*/
void mc_field_average(unsigned char* curData, unsigned char* refData, FILE* outvid){
unsigned char* tempframe = new unsigned char[Config::image_width*Config::image_height];
int i,j;
for (i=0;i<Config::image_height;i++){
for (j=0;j<Config::image_width;j++){
tempframe[INDEX(i,j)] = mc_field_average_pixel(curData,refData,i,j);
}
}
for (i=0;i<Config::image_height;i++){
fwrite(&tempframe[INDEX(i,0)],sizeof(unsigned char), Config::image_width,outvid);
}
delete [] tempframe;
}
/***************************************************************/
/* MC Field Averaging Function for Bilateral Motion Estimation */
/* !!USE ONLY IF MOTION VECTORS ARE NOT MULTIPLIED BY 2 */
/* INSIDE THE BILATERAL SEARCH FUNCTIONS!!!!!!!!!!!!!*/
/***************************************************************/
void bi_mc_field_average(unsigned char* curData, unsigned char* refData, FILE* outvid){
unsigned char* tempframe = new unsigned char[Config::image_width*Config::image_height];
int i,j;
for (i=0;i<Config::image_height;i++){
for (j=0;j<Config::image_width;j++){
if (i<1072)
{
tempframe[INDEX(i,j)] = bi_mc_field_average_pixel(curData,refData,i,j);
}
else
{
tempframe[INDEX(i,j)] = (refData[R_INDEX(i,j)]+curData[R_INDEX(i,j)])/2;
}
}
}
for (i=0;i<Config::image_height;i++){
fwrite(&tempframe[INDEX(i,0)],sizeof(unsigned char), Config::image_width,outvid);
}
delete [] tempframe;
}
/*------------------------------------------------------------------------------*/
/*Two Mode Interpolator decision function */
/*For every pixel in the image frame run occlusion detection algorithm */
/*if it's decided that there is occlusion situation use dynamic median filtering*/
/*if there's no occlusion then use MC Field averaging */
/*------------------------------------------------------------------------------*/
void two_mode_interpolate(unsigned char* curData, unsigned char* refData, FILE* outvid){
//unsigned char tempframe[Config::image_height][Config::image_width];
unsigned char* tempframe = new unsigned char[Config::image_width*Config::image_height];
int i,j;
for (i=0;i<Config::image_height;i++){
for (j=0;j<Config::image_width;j++){
if (i<1072)
{
if (detect_occlusion((i/Config::blocksize),(j/Config::blocksize)))
tempframe[INDEX(i,j)] = DynMedian_Pixel(curData,refData,i,j);
else
tempframe[INDEX(i,j)] = mc_field_average_pixel(curData,refData,i,j);
}
else
{
tempframe[INDEX(i,j)] = (refData[R_INDEX(i,j)]+curData[R_INDEX(i,j)])/2;
}
}
}
for (i=0;i<Config::image_height;i++){
fwrite(&tempframe[INDEX(i,0)],sizeof(unsigned char), Config::image_width,outvid);
}
delete [] tempframe;
}
/*--------------------------------------------------------------------------------------*/
/*Occlusion detection function */
/*If the previous block's motion vector is larger than the next block's motion vector */
/*more than a pre-defined threshold then it is decided that there is occlusion */
/*--------------------------------------------------------------------------------------*/
bool detect_occlusion(int rowpos, int colpos){
if (rowpos == 0) rowpos += 1;
else if (rowpos == BLOCK_COUNT_OF_COLUMN) rowpos -= 1;
else if (colpos == 0) colpos += 1;
else if (colpos == BLOCK_COUNT_OF_ROW) colpos -= 1;
if(abs(mvectors[rowpos*(BLOCK_COUNT_OF_ROW)+colpos+1].x - mvectors[rowpos*(BLOCK_COUNT_OF_ROW)+colpos-1].x) > Config::occlusion_th ||
abs(mvectors[(rowpos+1)*(BLOCK_COUNT_OF_ROW)+colpos].y - mvectors[(rowpos-1)*(BLOCK_COUNT_OF_ROW)+colpos].y) > Config::occlusion_th)
return true;
else
return false;
}
/*------------------------------------------------------*/
/* Overloaded Updater Function version 1 */
/* if input is a vector pointer than update data where */
/* it points with a random vector */
/*------------------------------------------------------*/
vector* update(vector* mvector){
if(Config::enable_update){
vector randvector;
long unsigned int randomint;
randomint = rand31pmc_ranlui()%25;
//RandGen rand;
//randvector = updateSet[rand.RandInt(0,24)];
randvector = updateSet[randomint];
mvector->x += randvector.x;
mvector->y += randvector.y;
}
return mvector;
}
/*------------------------------------------------------*/
/* Overloaded Updater Function version 2 */
/* if input is a vector than update that vector's data */
/* with a random vector */
/*------------------------------------------------------*/
vector update(vector mvector){
if(Config::enable_update){
vector randvector;
//RandGen rand;
long unsigned int randomint;
randomint = rand31pmc_ranlui()%25;
//randvector = updateSet[rand.RandInt(0,24)];
randvector = updateSet[randomint];
mvector.x += randvector.x;
mvector.y += randvector.y;
}
return mvector;
}
/*----------------------------------------------------------------------------------------------*/
/*3DRS block matcher function (Two updated candidates) */
/*----------------------------------------------------------------------------------------------*/
vector calcBlock3DRS(unsigned char* curData, unsigned char* refData, int rowpos, int colpos,int s_count, vector* s_locs){
vector mvector = {0,0};
vector* tempvector = new vector[s_count+1];
unsigned int* SAD;
SAD = new unsigned int[s_count];
int i;
int row,col;
unsigned int min = Config::blocksize*Config::blocksize*255;
if (Config::enable_early_t && calculateSAD(&curData[R_INDEX(rowpos*Config::blocksize,colpos*Config::blocksize)],&refData[R_INDEX(rowpos*Config::blocksize,colpos*Config::blocksize)]) == 0){
mvector.x = 0;
mvector.y = 0;
}
else if (firstframe){
update(&mvector);
}
else{
for(i=0;i<s_count;i++){ //use for(i=0;i<=s_count;i++) to include zero motion vector
row = rowpos + s_locs[i].y;
col = colpos + s_locs[i].x;
if (row < 0) row = 0;
else if (row > (BLOCK_COUNT_OF_COLUMN - 1)) row = BLOCK_COUNT_OF_COLUMN -1;
if (col < 0) col = 0;
else if (col > (BLOCK_COUNT_OF_ROW - 1)) col = BLOCK_COUNT_OF_ROW -1;
if (i == s_count-1)
{
tempvector[i] = update(mvectors[row*(BLOCK_COUNT_OF_ROW)+col]);
}
else if (i == s_count-2)
{
//tempvector[i].x = mvectors[row*(BLOCK_COUNT_OF_ROW)+col].x;
//tempvector[i].y = mvectors[row*(BLOCK_COUNT_OF_ROW)+col].y;
tempvector[i] = update(mvectors[row*(BLOCK_COUNT_OF_ROW)+col]); //comment out this line and uncomment the above 2 lines for single updated candidate
}
else if (i == s_count)
{
tempvector[i].x = 0;
tempvector[i].y = 0;
}
else
{
tempvector[i].x = mvectors[row*(BLOCK_COUNT_OF_ROW)+col].x;
tempvector[i].y = mvectors[row*(BLOCK_COUNT_OF_ROW)+col].y;
}
/*if (!firstpass && !secondframe && (tempvector[i].x == mvectors[rowpos*(BLOCK_COUNT_OF_ROW)+colpos].x && tempvector[i].y == mvectors[rowpos*(BLOCK_COUNT_OF_ROW)+colpos].y))
{
SAD[i] = SAD_Values[rowpos*(BLOCK_COUNT_OF_ROW)+colpos];
}
else
{*/
SAD[i] = calculateSAD(&curData[R_INDEX(rowpos*Config::blocksize,colpos*Config::blocksize)],&refData[R_INDEX((rowpos*Config::blocksize-tempvector[i].y),colpos*Config::blocksize-tempvector[i].x)]);
//}
}
for(i=0;i<s_count;i++){ //use for(i=0;i<=s_count;i++) to include zero motion vector
if (SAD[i] < min){
mvector = tempvector[i];
min = SAD[i];
}
}
}
min_SAD = min;
delete [] SAD;
delete [] tempvector;
return mvector;
}
/********************************************************************************************/
/*ATME Algorithm calculator function */
/********************************************************************************************/
vector calcNewBlock3DRS(unsigned char* curData, unsigned char* refData, int rowpos, int colpos,int s_count,int ext_s_count, vector* s_locs, vector* ext_s_locs){
vector mvector = {0,0};
vector* tempvector = new vector[ext_s_count+1];
//vector* tempvector = new vector[s_count+1];
vector updatevector;
unsigned int* SAD;
SAD = new unsigned int[ext_s_count+1];
int i;
int row,col;
unsigned int min = Config::blocksize*Config::blocksize*255;
bool under_threshold = false;
float* weight = new float[ext_s_count+1];
vector* candidates = new vector[2];
vector vmedian;
vector* sortarray = new vector[3];
vector sorttemp;
if (Config::enable_early_t && calculateSAD(&curData[R_INDEX(rowpos*Config::blocksize,colpos*Config::blocksize)],&refData[R_INDEX(rowpos*Config::blocksize,colpos*Config::blocksize)]) == 0){
mvector.x = 0;
mvector.y = 0;
}
else if (firstframe){
update(&mvector);
}
else{
for(i=0;i<s_count;i++){
row = rowpos + s_locs[i].y;
col = colpos + s_locs[i].x;
if (row < 0) row = 0;
else if (row > (BLOCK_COUNT_OF_COLUMN - 1)) row = BLOCK_COUNT_OF_COLUMN -1;
if (col < 0) col = 0;
else if (col > (BLOCK_COUNT_OF_ROW - 1)) col = BLOCK_COUNT_OF_ROW -1;
// uncomment below lines for giving weights to candidates
/*if (i == s_count-1)
{
tempvector[i] = update(mvectors[row*(BLOCK_COUNT_OF_ROW)+col]);
weight[i] = Config::update_weight;
}
else if (i == s_count-2)
{
weight[i] = Config::temporal_weight;
tempvector[i].x = mvectors[row*(BLOCK_COUNT_OF_ROW)+col].x;
tempvector[i].y = mvectors[row*(BLOCK_COUNT_OF_ROW)+col].y;
}
else
{
weight[i] = Config::spatial_weight;
tempvector[i].x = mvectors[row*(BLOCK_COUNT_OF_ROW)+col].x;
tempvector[i].y = mvectors[row*(BLOCK_COUNT_OF_ROW)+col].y;
}*/
if (i == s_count-1)
{
tempvector[i] = mvectors[row*(BLOCK_COUNT_OF_ROW)+col];
//tempvector[i] = update(mvectors[row*(BLOCK_COUNT_OF_ROW)+col]); //uncomment this line for secondary update vector added candidate
//updatevector = update(mvectors[row*(BLOCK_COUNT_OF_ROW)+col]);
}
else
{
tempvector[i].x = mvectors[row*(BLOCK_COUNT_OF_ROW)+col].x;
tempvector[i].y = mvectors[row*(BLOCK_COUNT_OF_ROW)+col].y;
}
}
//calculate median
vmedian = L1_MedianFilter(tempvector,s_count);
fprintf(vectortest,"%d\t%d\t(%d %d)\t%d\t(%d %d)\t%d\t(%d %d)\t%d\t->\t(%d %d)\t",rowpos,colpos,tempvector[0].x,tempvector[0].y,L1_Norm(tempvector[0],tempvector[1]),tempvector[1].x,tempvector[1].y,L1_Norm(tempvector[1],tempvector[2]),tempvector[2].x,tempvector[2].y,L1_Norm(tempvector[0],tempvector[2]),vmedian.x,vmedian.y);
// under Vth check
for (int a = 0 ; a <s_count ; a++)
{
for (int b = a; b < s_count ; b++)
{
if (L1_Norm(tempvector[a],tempvector[b]) > Config::vector_threshold)
{
under_threshold = false;
break;
}
else
{
under_threshold = true;