transform_to_motionpatch_together.m
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%missing file delete
%LOCATION : raw skeletone files
path_name = '/media/rfj/EEA4441FA443E923/nturgb_skeletones/';
file_list = dir(path_name);
L = length(file_list);
fileID = fopen('/home/rfj/MATLAB/bin/samples_with_missing_skeletons.txt','r');
formatSpec = '%s';
sizeA = [20 Inf];
missing_file_list = fscanf(fileID,formatSpec,sizeA);
missing_file_list = missing_file_list.';
fclose(fileID);
perfect_list = [];
for K = 3:L
file_name = char(file_list(K).name);
missing_num = 0;
for J = 1:length(missing_file_list);
missing_name = missing_file_list(J,:);
if file_name(1:20) == missing_name
missing_num = 1;
end
end
if missing_num == 0
perfect_list = [perfect_list;file_name];
end
end
% make motion patch
L = length(perfect_list);
for K = 1:L
file_name = char(perfect_list(K,:));
name = strcat(path_name,file_name(1:20),'.skeleton');
num_body = file_name(22);
BN = str2num(num_body);
[token,remainder] = strtok(file_name,'A');
class = str2num(remainder(2:4));
if class == 20
bodyinfo = read_skeleton_file(name);
frame_num = size(bodyinfo,2);
%initialize
cur_subject_x = zeros(frame_num, 25);
cur_subject_y = zeros(frame_num, 25);
cur_subject_z = zeros(frame_num, 25);
tot_x = zeros(frame_num,25);
tot_y = zeros(frame_num,25);
tot_z = zeros(frame_num,25);
joint_5 = zeros(1,3);
joint_9 = zeros(1,3);
joint_1 = zeros(1,3);
joint_3 = zeros(1,3);
try
%get total joints information
for FN = 1:frame_num
cur_body = bodyinfo(FN).bodies(1);
joints = cur_body.joints;
for JN = 1:25
tot_x(FN,JN) = joints(JN).x;
tot_y(FN,JN) = joints(JN).y;
tot_z(FN,JN) = joints(JN).z;
end
end
%get median values
M_x = median(tot_x);
M_y = median(tot_y);
M_z = median(tot_z);
%set 3 points for make plane
joint_5 = [M_x(5) M_y(5) M_z(5)];
joint_9 = [M_x(9) M_y(9) M_z(9)];
joint_1 = [M_x(1) M_y(1) M_z(1)];
joint_3 = [M_x(3) M_y(3) M_z(3)];
%find RIGID TRNASFORMATION matrix
d1 = joint_1 - joint_5;
d2 = joint_1 - joint_9;
n1 = cross(d1,d2); % because we will parallel transform, don't need to find belly
u1 = n1/norm(n1);
u2 = [0 0 1];
cs1 = dot(u1,u2)/norm(u1)*norm(u2);
ss1 = sqrt(1-cs1.^2);
v1 = cross(u1,u2)/norm(cross(u1,u2));
R1 = [v1(1)*v1(1)*(1-cs1)+cs1 v1(1)*v1(2)*(1-cs1)-v1(3)*ss1 v1(1)*v1(3)*(1-cs1)+v1(2)*ss1];
R1(2,:) = [v1(1)*v1(2)*(1-cs1)+v1(3)*ss1 v1(2)*v1(2)*(1-cs1)+cs1 v1(2)*v1(3)*(1-cs1)-v1(1)*ss1];
R1(3,:) = [v1(1)*v1(3)*(1-cs1)-v1(2)*ss1 v1(2)*v1(3)*(1-cs1)+v1(1)*ss1 v1(3)*v1(3)*(1-cs1)+cs1];
%1-3 number tolls to parallel x axis. Rigid transformation on plane surface
%Z axis coords oyler angle transform
t = joint_3 - joint_1;
d3 = R1(1,:) * t.';
d3(1,2) = R1(2,:) * t.';
d3(1,3) = R1(3,:) * t.';
u3 = d3(1:2)/norm(d3(1:2));
v3 = [u3(1) -u3(2)];
v3(2,:) = [u3(2) u3(1)];
u4 = [1 0].';
csss = v3\u4;
cs2 = csss(1);
ss2 = csss(2);
R2 = [cs2 -ss2 0];
R2(2,:) = [ss2 cs2 0];
R2(3,:) = [0 0 1];
%apply rigid transformation
for FN = 1:frame_num
cur_body = bodyinfo(FN).bodies(1);
joints = cur_body.joints;
for JN = 1:25
a = R1(1,:) * [joints(JN).x joints(JN).y joints(JN).z].';
b = R1(2,:) * [joints(JN).x joints(JN).y joints(JN).z].';
c = R1(3,:) * [joints(JN).x joints(JN).y joints(JN).z].';
cur_subject_x(FN,JN) = R2(1,:) * [a b c].';
cur_subject_y(FN,JN) = R2(2,:) * [a b c].';
cur_subject_z(FN,JN) = R2(3,:) * [a b c].';
end
end
%orientation normalize 2 (with plane surface)
if cur_subject_x(1,4) < cur_subject_x(1,1)
cur_subject_x = 0 - cur_subject_x;
end
if cur_subject_y(1,9) > cur_subject_y(1,5)
cur_subject_y = 0 - cur_subject_y;
end
%get current median
CM_x=median(cur_subject_x);
CM_y=median(cur_subject_y);
CM_z=median(cur_subject_z);
%for transform bellybutton to 0.5,0.5 (Except X) but it doesn't work
belly_button = 0.5 - CM_y(2);
belly_button(2) = 0.5 - CM_z(2);
% normalize with x... <- HERE! WANT TO PARALLEL TRANSFORM
... but if I plus belly_button for x and y axis , it dosn't work
cur_subject_x = cur_subject_x - min(cur_subject_x(:));
max_tall = max(cur_subject_x(:));
cur_subject_x = cur_subject_x ./ max_tall;
cur_subject_y = cur_subject_y - min(cur_subject_y(:));
cur_subject_y = cur_subject_y ./ max_tall;
cur_subject_z = cur_subject_z - min(cur_subject_z(:));
cur_subject_z = cur_subject_z ./ max_tall;
% 이미지 저장
motionpatch = cur_subject_x;
motionpatch(:,:,2) = cur_subject_y;
motionpatch(:,:,3) = cur_subject_z;
new_file_name = strcat('/home/rfj/바탕화면/motionpatch/',num2str(class),'/',file_name(1:20),'.png');
imwrite(motionpatch,new_file_name);
catch
name
end
end
end