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use circle generator to replace the random data generator. This can fix the indeterminant system error.

release/4.3a0
lvzhaoyang 2015-01-13 01:32:59 -05:00
parent 10dc767eda
commit 6ab95f60c2
1 changed files with 38 additions and 31 deletions
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69
matlab/gtsam_examples/CameraFlyingExample.m
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@ -3,15 +3,26 @@ clc;
clf;
import gtsam.*
%% define the options
options.fieldSize = Point2([100, 100]');
options.cylinderNum = 10;
options.poseNum = 20;
options.monoK = Cal3_S2(525,525,0,320,240);
options.stereoK = Cal3_S2Stereo(721,721,0.0,609,172,0.53715); % read from the VO calibration file
options.imageSize = Point2([640, 480]');
%% generate a set of cylinders and Samples
fieldSize = Point2([100, 100]');
cylinderNum = 10;
cylinderNum = options.cylinderNum;
cylinders = cell(cylinderNum, 1);
% ToDo: it seems random generated cylinders doesn't work that well
% use fixed parameters instead
% It seems random generated cylinders doesn't work that well
% Now it set up a circle of cylinders
theta = 0;
for i = 1:cylinderNum
baseCentroid = Point2([fieldSize.x * rand, fieldSize.y * rand]');
theta = theta + 2*pi / 10;
x = 20 * cos(theta) + options.fieldSize.x/2;
y = 20 * sin(theta) + options.fieldSize.y/2;
baseCentroid = Point2([x, y]');
cylinders{i,1} = cylinderSampling(baseCentroid, 1, 5, 1);
end
@ -19,23 +30,21 @@ end
% now is plotting on a 100 * 100 field
figID = 1;
figure(figID);
plotCylinderSamples(cylinders, fieldSize, figID);
plotCylinderSamples(cylinders, options.fieldSize, figID);
%% generate camera trajectories
K = Cal3_S2(525,525,0,320,240);
imageSize = Point2([640, 480]');
poseNum = 10;
cameras = cell(poseNum, 1);
trans = Point3();
% To ensure there are landmarks in view, look at one randomly chosen cylinder
% each time.
for i = 1:poseNum
cylinderIdx = max(min(round(cylinderNum*rand), 10), 1);
cameras{i} = SimpleCamera.Lookat(trans, cylinders{cylinderIdx}.centroid, ...
Point3([0,0,1]'), K);
incT = Point3(5*rand, 5*rand, 5*rand);
trans = trans.compose(incT);
cameras = cell(options.poseNum, 1);
% Generate ground truth trajectory r.w.t. the field center
theta = 0;
r = 30;
for i = 1:options.poseNum
theta = (i-1)*2*pi/options.poseNum;
t = Point3([30*cos(theta), 30*sin(theta), 10]');
cameras{i} = SimpleCamera.Lookat(t, ...
Point3(options.fieldSize.x/2, options.fieldSize.y/2, 0), ...
Point3([0,0,1]'), K);
end
%% visibility validation
@ -46,25 +55,23 @@ visiblePoints3 = cylinderSampleProjection(cameras{1}, imageSize, cylinders);
%plotProjectedCylinderSamples(visiblePoints3, cameraPoses{1}, figID);
%% setp up monocular camera and get measurements
%pts2dTracksMono = points2DTrackMonocular(cameras, imageSize, cylinders);
pts2dTracksMono = points2DTrackMonocular(cameras, imageSize, cylinders);
%% set up stereo camera and get measurements
% load stereo calibration
calib = dlmread(findExampleDataFile('VO_calibration.txt'));
KStereo = Cal3_S2Stereo(calib(1), calib(2), calib(3), calib(4), calib(5), calib(6));
poseNum = 10;
camerasStereo = cell(poseNum, 1);
trans = Point3();
for i = 1:poseNum
cylinderIdx = max(min(round(cylinderNum*rand), 10), 1);
camerasStereo{i} = SimpleCamera.Lookat(trans, cylinders{cylinderIdx}.centroid, ...
Point3([0,0,1]'), KStereo);
incT = Point3(5*rand, 5*rand, 5*rand);
trans = trans.compose(incT);
end
camerasStereo = cell(options.poseNum, 1);
% for i = 1:options.poseNum
% cylinderIdx = max(min(round(cylinderNum*rand), 10), 1);
% camerasStereo{i} = SimpleCamera.Lookat(trans, cylinders{cylinderIdx}.centroid, ...
% Point3([0,0,1]'), KStereo);
%
% incT = Point3(5*rand, 5*rand, 5*rand);
% trans = trans.compose(incT);
% end
pts2dTracksStereo = points2DTrackStereo(camerasStereo, imageSize, cylinders);
%pts2dTracksStereo = points2DTrackStereo(camerasStereo, imageSize, cylinders);
% plot the 2D tracks