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 [mask,SupIndex,PixelMask,PatchMask]=... |
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40 | makeSubSupMask(gridinfo,sup_hi,sup,maskindex,width,hight); |
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41 | |
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42 | global GeneralDataFolder ScratchDataFolder LocalFolder ClusterExecutionDirectory... |
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43 | ImgFolder VertYNuPatch VertYNuDepth HoriXNuPatch HoriXNuDepth a_default b_default Ox_default Oy_default... |
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44 | Horizon_default filename; |
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45 | |
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46 | % calculating the parameter of patch |
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47 | % [horizontal size of the patch in pixel size, vertical sieze of patch in pixel size] |
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48 | ratioh(1:2) = gridinfo(:,1)./gridinfo(:,end); |
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49 | % [horizontal size of the step of point in pixel size, vertical sieze of step of point in pixel size] |
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50 | ratioh(3:4) = gridinfo(:,1)./gridinfo(:,2); |
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51 | % [horizontal size of the step of mask in pixel size, vertical sieze of step of mask in pixel size] |
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52 | MaskStep = ceil(gridinfo(:,2)./gridinfo(:,end)); |
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53 | |
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54 | % initialize the mask |
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55 | mask = zeros(gridinfo(2,1),gridinfo(1,1)); |
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56 | SupIndex = []; |
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57 | PixelMask = logical(zeros(gridinfo(2,1),gridinfo(1,1))); |
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58 | PatchMask = logical(zeros(gridinfo(2,2),gridinfo(1,2))); |
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59 | |
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60 | for j=(maskindex(1)-MaskStep(1)):MaskStep(1):(gridinfo(1,2)+MaskStep(1)) % j increase in horizontal direction |
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61 | for i=(maskindex(2)-MaskStep(2)):MaskStep(2):(gridinfo(2,2)+MaskStep(2)) % i increase in vertical direction |
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62 | centerY = ceil(ratioh(4)/2*(2*i-1)); |
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63 | centerX = ceil(ratioh(3)/2*(2*j-1)); |
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64 | indicesY = min(max(centerY-hight(2),1),gridinfo(2,1)):max(min(centerY+hight(1),gridinfo(2,1)),1); |
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65 | indicesX = min(max(centerX-width(2),1),gridinfo(1,1)):max(min(centerX+width(1),gridinfo(1,1)),1); |
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66 | patch_sup = sup_hi( indicesY, indicesX); |
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67 | |
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68 | % decide the center subsuperpixel (only do this in the smallest size of patch) |
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69 | |
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70 | if (j>=1&j<=gridinfo(1,2)&i>=1&i<=gridinfo(2,2)) |
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71 | SupTemp = analysesupinpatch(patch_sup,sup(i,j)); |
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72 | |
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73 | PixelMask(centerY,centerX) = true; |
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74 | PatchMask(i,j) = true; |
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75 | SupIndex = [SupIndex; SupTemp]; |
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76 | else |
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77 | SupTemp = analysesupinpatch(patch_sup); |
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78 | end |
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79 | mask(indicesY, indicesX) = patch_sup == SupTemp; |
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80 | %SupIndex = [SupIndex; SupTemp]; |
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81 | |
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82 | end |
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83 | end |
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