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5667.36 l h S 3756.54 4350.68 m 3692.44 4351.16 l 3691.82 4267.64 l 3350.78 4270.17 l 3254.88 4270.88 l 3255.14 4304.8 l 3199.8 4305.21 l 3200.91 4456.45 l 3348.97 4455.36 l 3692.29 4452.81 l 3692.24 4446.24 l 3757.25 4445.75 l 3756.54 4350.68 l h S 3280.67 5024.5 m 3280.56 5079.72 l 3756.12 5080.64 l 3756.12 5077.79 l 3756.5 4884.8 l 3374.56 4884.05 l 3374.48 4929.77 l 3280.86 4929.58 l 3280.67 5024.5 l h S 3756.61 4105.11 m 3698.91 4105.84 l 3697.89 4025.51 l 3298.9 4030.54 l 3300.08 4124.49 l 3356.94 4123.78 l 3357.98 4206.45 l 3358.16 4220.49 l 3758 4215.45 l 3756.61 4105.11 l h S 3694.21 4455.86 m 3347.95 4462.07 l 3350.68 4538.64 l 3394.42 4537.62 l 3396.03 4652.72 l 3769.09 4648.23 l 3766.76 4454.57 l 3694.21 4455.86 l h S 3403.54 4747.29 m 3405.15 4880.77 l 3770.8 4876.37 l 3769.47 4767.39 l 3768.53 4688.66 l 3764.87 4688.7 l 3402.89 4693.06 l 3403.54 4747.29 l h S Q q 3929 4221 662 1562 re W* n 1 1 1 rg 3928.76 4221.29 663.273 1561.68 re f* Q q 3929 4221 662 1562 re W* n q -421.046 -1295.85 1058.71 -343.995 3992.23 5977.65 cm /R40 Do Q Q q 3929 4221 662 1562 re W* n q -101.051 -311.004 1058.71 -343.995 3571.19 4681.8 cm /R41 Do Q /R39 gs [ 48.2788 24.1394 12.0697 24.1394 ] 0 d 12.0697 w 2 J 2 j 0 0 1 RG 4327.93 5704.17 m 4229.5 5735.68 l 4216.81 5721.18 l 4207.73 5719.14 l 4159.4 5733.85 l 4156.63 5726.3 l 4151.37 5720.65 l 4126.96 5722.04 l 4112.84 5708.43 l 4103.32 5706.23 l 4099.34 5698.74 l 4093.77 5669.07 l 4105.45 5637.97 l 4115.96 5632.63 l 4251.37 5588.84 l 4269.02 5599.61 l 4278.76 5602.39 l 4302.78 5595.38 l 4310.14 5597.43 l 4311.38 5606.79 l 4315.75 5613.06 l 4323.64 5617.78 l 4345.46 5651.95 l 4327.93 5704.17 l h S 4457.05 5458.81 m 4443.78 5453.59 l 4367.58 5476.8 l 4325.18 5467.82 l 4294.94 5476.79 l 4281.28 5478.31 l 4273.03 5468.82 l 4262.05 5464.96 l 4217.05 5478.35 l 4208.8 5472.6 l 4203.41 5462.46 l 4188.93 5464.74 l 4181.16 5457.86 l 4157.15 5385.62 l 4165.56 5378.25 l 4256.61 5349.37 l 4265.77 5354.53 l 4276.93 5350.81 l 4286.23 5351.96 l 4294.16 5358.85 l 4338.34 5347.87 l 4359.14 5363.78 l 4453.58 5357.13 l 4478.81 5369.86 l 4484.51 5380.82 l 4496.25 5417.26 l 4491.02 5428.23 l 4457.05 5458.81 l h S 4460.84 5256.24 m 4403.82 5267.26 l 4321.36 5255.08 l 4266.05 5271.75 l 4257.46 5266.56 l 4215.64 5267.31 l 4202.36 5265.64 l 4190.72 5260.1 l 4184.17 5251.22 l 4173.68 5205.38 l 4184.62 5182.83 l 4282.77 5151.12 l 4295.69 5151.57 l 4319.41 5162.09 l 4375.68 5145.18 l 4387.98 5145.42 l 4395.23 5151.98 l 4394.06 5160.81 l 4447.88 5144.96 l 4478.38 5219.86 l 4475.95 5228.39 l 4463.57 5233.75 l 4460.84 5256.24 l h S 4460.98 5019.36 m 4354.36 5051.83 l 4331.03 5037.58 l 4271.17 5055.88 l 4271.82 5046.07 l 4265.1 5040.07 l 4250.67 5040.29 l 4205.02 5054.5 l 4192.13 5056.43 l 4190.38 5044.88 l 4181.71 5041.12 l 4167.13 5044.04 l 4161.11 5034.84 l 4152.77 5011.19 l 4157.2 4958.98 l 4166.55 4949.41 l 4208.7 4926.88 l 4223.47 4921.66 l 4285.83 4914.27 l 4295.24 4918.98 l 4303.82 4909.68 l 4311.98 4914.12 l 4320 4923.09 l 4349.98 4914.95 l 4363.02 4918.15 l 4375.16 4924.59 l 4388.71 4926.13 l 4403.31 4924.5 l 4455.45 4947.54 l 4463.64 4956.67 l 4471.48 4980.86 l 4470.5 4993.45 l 4460.98 5019.36 l h S 4429.84 4827.63 m 4369.89 4831.82 l 4358.75 4830.79 l 4349.89 4824.77 l 4340.21 4821.63 l 4294.07 4835.48 l 4284.29 4835.65 l 4278.68 4832.07 l 4278.8 4840.39 l 4268.88 4843.9 l 4259.82 4828.66 l 4238.91 4830.66 l 4223.63 4817.25 l 4219.44 4808.51 l 4219.81 4745.66 l 4228.73 4740.32 l 4298.13 4719.26 l 4309.59 4720.05 l 4320.81 4734.24 l 4377.89 4716.71 l 4387.66 4732.18 l 4396.63 4732.92 l 4407.86 4729.82 l 4416.32 4731.96 l 4445.07 4786.68 l 4429.84 4827.63 l h S 4408.83 4585.3 m 4381.32 4593.33 l 4368.38 4593.22 l 4344.16 4584.53 l 4276.27 4603.84 l 4254.76 4592.13 l 4242.52 4591.73 l 4189.04 4606.92 l 4177.05 4590.03 l 4150.07 4592.88 l 4140.67 4588.95 l 4114.84 4525.33 l 4122.4 4516.77 l 4145.4 4501.01 l 4228.67 4479.27 l 4241.48 4479.27 l 4263.59 4490.13 l 4304.11 4478.8 l 4338.12 4491.5 l 4365.94 4487.96 l 4377.59 4491.65 l 4418.06 4519.59 l 4428.39 4552.5 l 4408.83 4585.3 l h S 4376.04 4387.83 m 4317.7 4401.7 l 4303.46 4402.42 l 4261.71 4396.88 l 4219.73 4408.41 l 4214.4 4399.91 l 4204.72 4394.86 l 4191 4394.4 l 4162.67 4403.1 l 4150.42 4403.89 l 4143.25 4395.25 l 4134 4390.54 l 4120.44 4393.96 l 4108.32 4363.82 l 4109.78 4352.78 l 4121.66 4329.95 l 4131.15 4321.51 l 4201.86 4298.84 l 4212.8 4316.63 l 4296.53 4291.48 l 4306.41 4310.71 l 4346.98 4300.46 l 4353.45 4305.88 l 4361.85 4297.4 l 4365.05 4297.52 l 4362.12 4307.77 l 4388.58 4308.57 l 4396.92 4316.17 l 4398.3 4326.13 l 4387.86 4349.13 l 4392.68 4370.86 l 4387.96 4380.09 l 4376.04 4387.83 l h S Q q 4710 4221 662 1562 re W* n 1 1 1 rg 4709.81 4221.29 663.27 1561.68 re f* Q q 4710 4221 662 1562 re W* n q -421.046 -1295.85 1058.71 -343.995 4773.28 5977.65 cm /R42 Do Q Q q 4710 4221 662 1562 re W* n q -101.051 -311.004 1058.71 -343.995 4352.23 4681.8 cm /R43 Do Q /R39 gs [ 48.2788 24.1394 ] 0 d 12.0697 w 2 J 2 j 1 1 0 RG 5100.88 5698.34 m 5088.69 5746.3 l 5078.18 5753.46 l 5045.09 5754.08 l 4974.63 5748.25 l 4950.29 5754.95 l 4905.59 5774.11 l 4862.43 5784.96 l 4838.63 5784.54 l 4822.68 5771.2 l 4796.06 5724.61 l 4786.71 5697.89 l 4787.98 5671.99 l 4796.72 5650.13 l 4812.81 5633.96 l 4832.9 5625.19 l 4868.58 5615.2 l 4878.24 5608.15 l 4891.77 5584.08 l 4904.21 5571.97 l 4922.84 5563 l 4944.73 5558.96 l 4988.4 5558.85 l 5021.93 5562.96 l 5069.55 5578.71 l 5152.39 5577.56 l 5175.23 5581.98 l 5195.01 5592.88 l 5211.88 5610.75 l 5210.06 5639 l 5203.41 5664.04 l 5179.74 5670.4 l 5136.06 5677.17 l 5120.02 5682.16 l 5108.37 5689.34 l 5100.88 5698.34 l h S 5288.69 5503.18 m 5232.56 5506.19 l 5160.71 5505.85 l 5125.76 5502.39 l 5074.91 5493.83 l 5043.42 5496.17 l 4963.46 5507.8 l 4920.86 5509.36 l 4907.83 5502.35 l 4894.71 5448.93 l 4874.08 5405.84 l 4869.11 5382.16 l 4873.75 5358.7 l 4891.25 5339.11 l 4921.21 5327.94 l 5031.17 5342.23 l 5067.46 5339.18 l 5136.21 5339.58 l 5216.68 5332.34 l 5253.42 5336.46 l 5270.94 5343.17 l 5286.75 5352.72 l 5300.82 5366.99 l 5305.11 5392.55 l 5297.92 5410.32 l 5296.42 5431.24 l 5305.84 5443.84 l 5330.8 5463.34 l 5318.86 5501.8 l 5288.69 5503.18 l h S 5265.3 5289.25 m 5259.7 5299.03 l 5251.14 5306.53 l 5152.14 5304.18 l 5102.95 5298.69 l 5043.71 5296.3 l 5012.88 5297.45 l 4984.93 5303.88 l 4842.78 5298.39 l 4840.1 5255.17 l 4847.2 5174.25 l 4857.99 5140.61 l 4898.42 5130.93 l 4935.9 5127.22 l 5014.14 5124.98 l 5057.68 5114.61 l 5074.67 5113.76 l 5105.9 5116.57 l 5142.52 5122.96 l 5220.36 5120.81 l 5233.46 5122.38 l 5244.62 5127.55 l 5253.31 5135.13 l 5257.65 5145.79 l 5258.46 5173.2 l 5267.69 5262.32 l 5265.3 5289.25 l h S 5283.69 5057.2 m 5260.05 5065.39 l 5237.19 5070.44 l 5214.23 5071.8 l 5078.02 5063.66 l 5010.36 5071.84 l 4935.59 5073.82 l 4883.22 5067.34 l 4863.7 5052.31 l 4904.05 4991 l 4913.54 4959.59 l 4920.93 4944.41 l 4956.31 4902.83 l 4978.39 4901.01 l 5000 4902.46 l 5016.01 4904.52 l 5033.23 4911.69 l 5058.7 4912.26 l 5071.48 4909.18 l 5135.14 4882.61 l 5198.29 4869.53 l 5220.32 4869.46 l 5241.92 4870.7 l 5268.7 4880.33 l 5272.87 4902.52 l 5290.95 4943.03 l 5291.18 4959.25 l 5297.21 4979.76 l 5293.55 4996.06 l 5305.93 5009.27 l 5307.72 5047.15 l 5283.69 5057.2 l h S 5230.47 4834.32 m 5161.93 4831.41 l 5090.68 4835.94 l 5054.57 4833.02 l 4982.14 4833.14 l 4973.47 4828.27 l 4968.57 4819.57 l 4961.68 4745.59 l 4961.99 4729.85 l 4975.16 4717.08 l 5008.06 4694.23 l 5026.68 4686.95 l 5063.91 4680.33 l 5094.36 4681.93 l 5103.68 4686.91 l 5118.02 4701.12 l 5126.56 4706.74 l 5135.93 4709.39 l 5145.63 4709.77 l 5155.69 4706.9 l 5180.09 4696.23 l 5210.66 4702.26 l 5223.34 4708.66 l 5232.87 4716.77 l 5236.7 4726.91 l 5240.46 4771.54 l 5241.28 4815.38 l 5239.96 4826.43 l 5236.41 4832.87 l 5230.47 4834.32 l h S 5246.06 4631.94 m 5167.43 4628.91 l 5130.16 4618.82 l 5113.18 4617.22 l 5083.12 4619.02 l 5044.84 4625.74 l 4988.89 4618.39 l 4950.36 4616.77 l 4908.18 4620.02 l 4865.46 4628.1 l 4855.2 4616.87 l 4844.93 4578.38 l 4839.51 4535.7 l 4840.43 4492.23 l 4851.77 4475.51 l 4869.02 4462.64 l 4892.45 4457.47 l 4918.15 4457.16 l 5009.89 4462.56 l 5089.46 4463.16 l 5170.87 4453.26 l 5210.04 4457.84 l 5227.28 4464.52 l 5235.11 4479.55 l 5239.23 4498.04 l 5245.84 4558.39 l 5246.06 4631.94 l h S 5210.1 4436.3 m 5151.59 4437.89 l 5008.88 4429.13 l 4886.54 4430.79 l 4870.09 4429.2 l 4853.3 4424.81 l 4834.93 4415.3 l 4817.29 4397.84 l 4806.84 4370.16 l 4805.91 4342.6 l 4813.97 4317.8 l 4833.12 4298.33 l 4859.52 4284.64 l 4888.11 4275.32 l 4916.48 4269.5 l 4942.52 4266.85 l 5000.49 4267.26 l 5026.96 4270.9 l 5064.9 4280.94 l 5072.71 4279.34 l 5099.18 4265.04 l 5124.57 4256.89 l 5206.48 4250.71 l 5228.96 4250.84 l 5244.84 4253.54 l 5256.71 4394.22 l 5253.5 4415.34 l 5238 4431.54 l 5210.1 4436.3 l h S Q q 10 0 0 10 0 0 cm BT /R24 9.9626 Tf 1 0 0 1 341.274 410.128 Tm [ (GT) -6353.99 (Init\056) -5742 (Result) ] TJ /R24 8.9664 Tf -32.4117 -10.698 Td [ (Figure) -311.977 (1\056) -312.996 (DSA) 39.9931 (C) -312.002 (uses) -312.985 (a) -311.991 (CNN) -312.979 (to) -312.005 (predict) -313.007 (the) -311.983 (ener) 17.9816 (gy) -313.018 (function) -311.988 (used) ] TJ 10.959 TL T* [ (by) -275.987 (an) -277.008 (Acti) 24.9957 (v) 14.9865 (e) -276.006 (Contour) -275.979 (Model) -276.994 (\050A) 40.0148 (CM\051) -275.982 (to) -275.976 (modify) -276.989 (an) -276.009 (initial) -276.003 (instance) ] TJ T* [ (polygon) -405.02 (using) -405.014 (learned) -405.003 (geometric) -404.984 (priors\056) -774.98 (Left\072) -620.001 (image) -404.004 (from) -405.006 (the) ] TJ T* [ (T) 79.9807 (orontoCity) -226.995 (v) 25.0066 (alidation) -226.979 (dataset) -227.009 (with) -227.014 (ground) -226.992 (truth) -227.014 (polygons\054) -230.995 (center\072) ] TJ T* [ (initial) -249.995 (polygons) -250.011 (pro) 15.0165 (vided) -249.989 (by) -249.978 (\133) ] TJ ET Q 0 1 0 rg q 10 0 0 10 0 0 cm BT /R24 8.9664 Tf 1 0 0 1 415.329 355.594 Tm (2) Tj ET Q 0 g q 10 0 0 10 0 0 cm BT /R24 8.9664 Tf 1 0 0 1 419.812 355.594 Tm [ (\135\054) -250.017 (right\072) -310 (results) -249.984 (of) -249.995 (DSA) 39.9931 (C\056) ] TJ /R24 9.9626 Tf -110.95 -34.2699 Td [ (global) -304.003 (statistics) -303.981 (such) -304.015 (as) -303.986 (b) 20.0016 (uilding) -303.988 (area) -304.003 (co) 15.0171 (v) 14.9828 (erage) -303.998 (estimation\054) ] TJ 11.9551 TL T* [ (it) -296.995 (comes) -296.995 (short) -296.99 (at) -295.987 (yielding) -297.009 (estimations) -296.995 (at) -297.004 (the) -297 (instance) -296.99 (le) 25.0203 (v) 14.9828 (el\056) ] TJ T* [ (In) -273.991 (computer) -274.991 (vision\054) -279.995 (this) -274.008 (problem) -274.988 (is) -274.018 (kno) 24.9909 (wn) -273.984 (as) ] TJ /R30 9.9626 Tf 184.113 0 Td [ (instance) -274.008 (se) 39.9933 (g\055) ] TJ -184.113 -11.9559 Td (mentation) Tj /R24 9.9626 Tf 39.85 0 Td [ (\054) -227.018 (where) -220.988 (models) -220.99 (pro) 14.9828 (vide) -221.007 (a) -220.988 (se) 15.0171 (gmentation) -221.017 (mask) -221.983 (on) -221.012 (a) ] TJ -39.85 -11.9551 Td [ (per) 19.9942 (\055object) -231.988 (instance) -233.003 (basis\056) -304.006 (Solving) -231.991 (this) -232.995 (task) -231.986 (is) -233.005 (f) 9.99343 (ar) -232.01 (more) -233.01 (chal\055) ] TJ T* [ (lenging) -248.008 (than) -247.005 (semantic) -248.013 (se) 15.0196 (gmentation\054) -247.988 (since) -247.008 (the) -247.988 (model) -246.993 (has) -247.993 (to) ] TJ T* [ (understand) -347.013 (whether) -346.994 (an) 15.0171 (y) -346.996 (tw) 10.0081 (o) -346.996 (b) 20.0016 (uilding) -347 (pix) 14.9975 (els) -346.991 (belong) -347.016 (to) -346.991 (the) ] TJ T* [ (same) -257.006 (b) 20.0016 (uilding) -255.994 (or) -257.013 (not\056) -328.984 (Precise) -257.006 (delineation) -257.021 (of) -255.996 (object) -257.001 (borders\054) ] TJ T* [ (with) -336 (sharp) -336.015 (corners) -335.983 (and) -334.998 (straight) -335.993 (w) 10.0032 (alls) -336.008 (in) -336.013 (the) -336.013 (case) -335.988 (of) -335.983 (b) 20.0016 (uild\055) ] TJ 11.9563 TL T* [ (ings\054) -353.992 (is) -334.01 (a) -333.008 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(\133) ] TJ ET Q 0 1 0 rg q 10 0 0 10 0 0 cm BT /R24 9.9626 Tf 1 0 0 1 449.155 164.686 Tm (17) Tj ET Q 0 g q 10 0 0 10 0 0 cm BT /R24 9.9626 Tf 1 0 0 1 459.118 164.686 Tm [ (\135\051\054) -273.998 (also) -267.98 (called) ] TJ /R30 9.9626 Tf 57.043 0 Td [ (snak) 10.0081 (es) ] TJ /R24 9.9626 Tf 26.4602 0 Td (\054) Tj -233.759 -11.9551 Td [ (may) -360.986 (be) -362.018 (considered) -360.981 (to) -360.986 (address) -360.989 (this) -361.993 (issue\056) -643.005 (A) 39.9982 (CMs) -361.989 (augment) ] TJ 11.9551 TL T* [ (bottom\055up) -473.99 (boundary) -472.997 (detectors) -473.985 (with) -472.995 (high\055le) 24.9958 (v) 14.9828 (el) -473.994 (geometric) ] TJ T* [ (constraints) -202.988 (and) -203.02 (priors\056) -294.01 (The) 14.9828 (y) -202.981 (w) 10.0032 (ork) -202 (by) -203.015 (constraining) -202.986 (the) -203.015 (possi\055) ] TJ 11.9559 TL T* [ (ble) -245.991 (outputs) -245.015 (to) -245.986 (a) -244.984 (f) 9.99588 (amily) -246.01 (of) -245.015 (curv) 15.0171 (es) -245.998 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