[37] | 1 | % * This code was used in the following articles:
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| 2 | % * [1] Learning 3-D Scene Structure from a Single Still Image,
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| 3 | % * Ashutosh Saxena, Min Sun, Andrew Y. Ng,
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| 4 | % * In ICCV workshop on 3D Representation for Recognition (3dRR-07), 2007.
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| 5 | % * (best paper)
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| 6 | % * [2] 3-D Reconstruction from Sparse Views using Monocular Vision,
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| 7 | % * Ashutosh Saxena, Min Sun, Andrew Y. Ng,
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| 8 | % * In ICCV workshop on Virtual Representations and Modeling
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| 9 | % * of Large-scale environments (VRML), 2007.
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| 10 | % * [3] 3-D Depth Reconstruction from a Single Still Image,
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| 11 | % * Ashutosh Saxena, Sung H. Chung, Andrew Y. Ng.
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| 12 | % * International Journal of Computer Vision (IJCV), Aug 2007.
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| 13 | % * [6] Learning Depth from Single Monocular Images,
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| 14 | % * Ashutosh Saxena, Sung H. Chung, Andrew Y. Ng.
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| 15 | % * In Neural Information Processing Systems (NIPS) 18, 2005.
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| 16 | % *
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| 17 | % * These articles are available at:
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| 18 | % * http://make3d.stanford.edu/publications
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| 19 | % *
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| 20 | % * We request that you cite the papers [1], [3] and [6] in any of
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| 21 | % * your reports that uses this code.
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| 22 | % * Further, if you use the code in image3dstiching/ (multiple image version),
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| 23 | % * then please cite [2].
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| 24 | % *
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| 25 | % * If you use the code in third_party/, then PLEASE CITE and follow the
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| 26 | % * LICENSE OF THE CORRESPONDING THIRD PARTY CODE.
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| 27 | % *
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| 28 | % * Finally, this code is for non-commercial use only. For further
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| 29 | % * information and to obtain a copy of the license, see
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| 30 | % *
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| 31 | % * http://make3d.stanford.edu/publications/code
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| 32 | % *
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| 33 | % * Also, the software distributed under the License is distributed on an
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| 34 | % * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
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| 35 | % * express or implied. See the License for the specific language governing
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| 36 | % * permissions and limitations under the License.
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| 37 | % *
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| 38 | % */
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| 39 | function [seglist ]=edgeSegDetection(Img,k,EdgeReady) |
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| 40 | |
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| 41 | displayFlag = false; |
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| 42 | |
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| 43 | % define global variable |
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| 44 | global GeneralDataFolder ScratchDataFolder LocalFolder ClusterExecutionDirectory... |
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| 45 | ImgFolder VertYNuPatch VertYNuDepth HoriXNuPatch HoriXNuDepth a_default b_default Ox_default Oy_default... |
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| 46 | Horizon_default filename batchSize NuRow_default SegVertYSize SegHoriXSize WeiBatchSize; |
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| 47 | |
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| 48 | %if nargin < 1 |
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| 49 | %Img = imread('/afs/cs.stanford.edu/group/reconstruction3d/Data/TestImg/img-combined1-p-108t0.jpg'); |
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| 50 | % Img = imread('/afs/cs/group/reconstruction3d/Data/moreInternetImages/4.jpg'); |
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| 51 | %end |
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| 52 | |
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| 53 | % Img = imresize(Img, 0.5, 'nearest'); |
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| 54 | |
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| 55 | % this function detect the edge segment |
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| 56 | % output the start position and end position of each line segment |
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| 57 | [x y dummy] = size(Img); |
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| 58 | |
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| 59 | if ~ EdgeReady |
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| 60 | ImgYCbCr = rgb2ycbcr(Img); |
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| 61 | %method = {'sobel','Prewitt','Roberts','zerocross','Canny','log'}; |
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| 62 | method = {'log'}; % for plane Parameter MRF |
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| 63 | % method = {'sobel'}; |
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| 64 | NuMethod = size(method,2); |
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| 65 | edgeImgTotal = zeros(x, y); |
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| 66 | for i = 1: NuMethod |
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| 67 | [edgeImg, thresh] = edge(ImgYCbCr(:,:,1),method{i},[ ], 4); |
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| 68 | % [edgeImg, thresh] = edge(ImgYCbCr(:,:,1),method{i},[ ], 'both'); |
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| 69 | edgeImg = edge(ImgYCbCr(:,:,1),method{i},thresh/4, 4); |
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| 70 | % edgeImg = edge(ImgYCbCr(:,:,1),method{i},thresh/4, 'both'); |
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| 71 | edgeImgTotal = edgeImgTotal | edgeImg; |
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| 72 | end |
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| 73 | else |
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| 74 | edgeImgTotal = Img; |
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| 75 | end |
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| 76 | % |
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| 77 | [edgelineList edgeline] = edgelink(edgeImgTotal,10); % hardwork |
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| 78 | % [edgelineList edgeline] = edgelink(edgeImgTotal,5); % hardwork |
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| 79 | tol = 3; |
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| 80 | angtol=0.01; % .01 for plane Parameter MRF |
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| 81 | linkrad = 3; |
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| 82 | %minLineLength = 45; |
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| 83 | minLineLength = 20; |
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| 84 | [seglist, nedgeIm] = lineseg(edgelineList,tol,angtol,linkrad, minLineLength); % hardwork |
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| 85 | |
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| 86 | if displayFlag, |
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| 87 | figure(100), image(Img); |
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| 88 | hold on; drawseg(seglist,100,2); |
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| 89 | %saveas(100,[ScratchDataFolder '/LineSeg/' filename{k} '_lineSeg.jpg']); |
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| 90 | end |
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