-
1
-
-
0026967479
-
"A survey of image registration techniques"
-
Dec.
-
L. G. Brown, "A survey of image registration techniques," ACM Comput. Surv., vol. 24, no. 4, pp. 325-376, Dec. 1992.
-
(1992)
ACM Comput. Surv.
, vol.24
, Issue.4
, pp. 325-376
-
-
Brown, L.G.1
-
2
-
-
0043237770
-
"Image registration methods: A survey"
-
Oct.
-
B. Zitova and J. Flusser, "Image registration methods: A survey," IVC, vol. 2 1, no. 11, pp. 977-1000, Oct. 2003.
-
(2003)
IVC
, vol.21
, Issue.11
, pp. 977-1000
-
-
Zitova, B.1
Flusser, J.2
-
3
-
-
0034248560
-
"Comparametric equations with practical applications in quantigraphic image processing"
-
Aug.
-
S. Mann, "Comparametric equations with practical applications in quantigraphic image processing," IEEE Trans. Image Process., vol. 9, no. 8, pp. 1389-1406, Aug. 2000.
-
(2000)
IEEE Trans. Image Process.
, vol.9
, Issue.8
, pp. 1389-1406
-
-
Mann, S.1
-
4
-
-
0037983657
-
"Jointly registering images in domain and range by piecewise linear comparametric analysis"
-
Apr.
-
F M. Candocia, "Jointly registering images in domain and range by piecewise linear comparametric analysis," IEEE Trans. Image Process., vol. 12, no. 4, pp. 409-419, Apr. 2003.
-
(2003)
IEEE Trans. Image Process.
, vol.12
, Issue.4
, pp. 409-419
-
-
Candocia, F.M.1
-
5
-
-
0031221119
-
"Alignment by maximization of mutual information"
-
P. Viola and W. M. Wells, "Alignment by maximization of mutual information," Int. J. Comput. Vis., vol. 24, no. 2, pp. 137-154, 1995.
-
(1995)
Int. J. Comput. Vis.
, vol.24
, Issue.2
, pp. 137-154
-
-
Viola, P.1
Wells, W.M.2
-
6
-
-
0000190431
-
"Automated multimodality image registration using information theory"
-
A. Collignon, F. Maes, D. Delaere, D. Vandermeulen, P. Seutens, and G. Marchal, "Automated multimodality image registration using information theory;" in Proc. 14th Int. Conf. Information Processing in Medical Imaging, 1995, pp. 263-274.
-
(1995)
Proc. 14th Int. Conf. Information Processing in Medical Imaging
, pp. 263-274
-
-
Collignon, A.1
Maes, F.2
Delaere, D.3
Vandermeulen, D.4
Seutens, P.5
Marchal, G.6
-
7
-
-
84947795329
-
"The correlation ratio as a new similarity measure for multimodal image registration"
-
Oct.
-
A. Roche, G. Malandain, X. Pennec, and N. Ayache, "The correlation ratio as a new similarity measure for multimodal image registration," in Proc. 1st Int. Conf Medical Image Computing and Computer-Assisted Intervention, Oct. 1998, pp. 1115-1124.
-
(1998)
Proc. 1st Int. Conf. Medical Image Computing and Computer-Assisted Intervention
, pp. 1115-1124
-
-
Roche, A.1
Malandain, G.2
Pennec, X.3
Ayache, N.4
-
8
-
-
0001947168
-
"Hierarchical, computationally efficient motion estimation algorithm"
-
J. R. Bergen and E. Adelson, "Hierarchical, computationally efficient motion estimation algorithm," J. Opt. Soc. Amer., vol. 4, no. 35, 1987.
-
(1987)
J. Opt. Soc. Amer.
, vol.4
, Issue.35
-
-
Bergen, J.R.1
Adelson, E.2
-
9
-
-
34250087462
-
"A computational framework and an algorithm for the measurement of visual motion"
-
P. Anandan, "A computational framework and an algorithm for the measurement of visual motion," Int. J. Comput. Vis., vol. 2, pp. 283-310, 1989.
-
(1989)
Int. J. Comput. Vis.
, vol.2
, pp. 283-310
-
-
Anandan, P.1
-
10
-
-
85006841501
-
"Hierarchical model-based motion estimation"
-
J. R. Bergen, P. Anandan, K. J. Hanna, and R. Hingorani, "Hierarchical model-based motion estimation," in Proc. Eur Conf. Computer Vision, 1992,pp.237-252.
-
(1992)
Proc. Eur. Conf. Computer Vision
, pp. 237-252
-
-
Bergen, J.R.1
Anandan, P.2
Hanna, K.J.3
Hingorani, R.4
-
11
-
-
0029181979
-
"Quicktime VR: An image-based approach to virtual environment navigation"
-
S. E. Chen, "Quicktime VR: An image-based approach to virtual environment navigation," in Proc. Computer Graphics, 1995, pp. 29-38.
-
(1995)
Proc. Computer Graphics
, pp. 29-38
-
-
Chen, S.E.1
-
12
-
-
0032075635
-
"Video indexing based on mosaic representations"
-
May
-
M. Irani and P. Anandan, "Video indexing based on mosaic representations," Proc. IEEE, vol. 86, no. 5, pp. 237-252, May 1998.
-
(1998)
Proc. IEEE
, vol.86
, Issue.5
, pp. 237-252
-
-
Irani, M.1
Anandan, P.2
-
15
-
-
0030651102
-
"Creating full view panoramic image mosaics and environment maps"
-
R. Szeliski and H.-Y Shum, "Creating full view panoramic image mosaics and environment maps," in Proc. Computer Graphics, 1997, pp. 251-258.
-
(1997)
Proc. Computer Graphics
, pp. 251-258
-
-
Szeliski, R.1
Shum, H.-Y.2
-
16
-
-
0031647592
-
"A pyramid approach to subpixel registration based on intensity"
-
Jan.
-
P. Thévenaz, U. E. Ruttimann, and M. Unser, "A pyramid approach to subpixel registration based on intensity," IEEE Trans. Image Process., vol. 7, no. 1, pp. 27-41, Jan. 1998.
-
(1998)
IEEE Trans. Image Process.
, vol.7
, Issue.1
, pp. 27-41
-
-
Thévenaz, P.1
Ruttimann, U.E.2
Unser, M.3
-
17
-
-
0032321202
-
"Construction and refinement of panoramic mosaics with global and local alignment"
-
H.-Y. Strum and R. Szeliski, "Construction and refinement of panoramic mosaics with global and local alignment," in Proc. Int. Conf. Computer Vision, 1998, pp. 953-958.
-
(1998)
Proc. Int. Conf. Computer Vision
, pp. 953-958
-
-
Strum, H.-Y.1
Szeliski, R.2
-
18
-
-
0031237803
-
"Video orbits of the projective group: A simple approach to featureless estimation of parameters"
-
Sep.
-
S. Mann and R. W. Picard, "Video orbits of the projective group: A simple approach to featureless estimation of parameters," IEEE Trans. Image Process., vol. 6, no. 9, pp. 1281-1295, Sep. 1997.
-
(1997)
IEEE Trans. Image Process.
, vol.6
, Issue.9
, pp. 1281-1295
-
-
Mann, S.1
Picard, R.W.2
-
21
-
-
0002823557
-
"Observations on cortical somatic sensory mechanisms of cat and monkey"
-
W. H. Marshall, C. N. Woolsey, and P. Bard, "Observations on cortical somatic sensory mechanisms of cat and monkey," J Neurophysiol., vol. 4, pp. 1-43, 1941.
-
(1941)
J. Neurophysiol.
, vol.4
, pp. 1-43
-
-
Marshall, W.H.1
Woolsey, C.N.2
Bard, P.3
-
22
-
-
0016289379
-
"Sequence regularity and geometry of orientation columns in the monkey striate cortex"
-
D. H. Hubel and T. N. Wiesel, "Sequence regularity and geometry of orientation columns in the monkey striate cortex," J. Comp. Neurol., pp. 158-267 293, 1974.
-
(1974)
J. Comp. Neurol.
, vol.293
, pp. 158-267
-
-
Hubel, D.H.1
Wiesel, T.N.2
-
23
-
-
0005774714
-
"Topographical mapping in primate visual cortex: History, anatomy and computation"
-
D.K. editor, Ed. New York: Marcel-Dekker
-
E. L. Schwartz, "Topographical mapping in primate visual cortex: History, anatomy and computation," in Visual Science and Engineering. Models and Applications, D. K. editor, Ed. New York: Marcel-Dekker, 1994.
-
(1994)
Visual Science and Engineering. Models and Applications
-
-
Schwartz, E.L.1
-
24
-
-
0017358115
-
"Spatial mapping in primate sensory projection: Analytic structure and relevance to perception"
-
E. L. Schwartz, "Spatial mapping in primate sensory projection: Analytic structure and relevance to perception," Biol. Cybern., vol. 25, pp. 181-194, 1979.
-
(1979)
Biol. Cybern.
, vol.25
, pp. 181-194
-
-
Schwartz, E.L.1
-
25
-
-
27744587783
-
"A new method for measuring the visuotopic map function of striate cortex: Validation with macaque data and possible extension to measurement of the human map"
-
D. Weinshall and E. L. Schwartz, "A new method for measuring the visuotopic map function of striate cortex: Validation with macaque data and possible extension to measurement of the human map," Soc. Neurosci. Abstr., pp. 1291-1291, 1987.
-
(1987)
Soc. Neurosci. Abstr.
, pp. 1291
-
-
Weinshall, D.1
Schwartz, E.L.2
-
26
-
-
0020736153
-
"On the retino-cortical mapping"
-
S. W. Wilson, "On the retino-cortical mapping," Int. J Man-Mach. Studies, vol. 18, pp. 361-389, 1983.
-
(1983)
Int. J. Man-Mach. Studies
, vol.18
, pp. 361-389
-
-
Wilson, S.W.1
-
27
-
-
0029221365
-
"Space variant imaging"
-
F. Ferrari, J. Nielsen, and G. Sandini, "Space variant imaging," Sens. Rev., vol. 15, no. 2, pp. 17-20, 1995.
-
(1995)
Sens. Rev.
, vol.15
, Issue.2
, pp. 17-20
-
-
Ferrari, F.1
Nielsen, J.2
Sandini, G.3
-
28
-
-
0031207021
-
"Design and evaluation of a log-polar image sensor fabricated using a standard 1.2 μm asic cmos process"
-
R. Wodnicki, G. W. Roberts, and M. Levine, "Design and evaluation of a log-polar image sensor fabricated using a standard 1.2 μm asic cmos process," IEEE J Solid-State Circuits, vol. 32, pp. 1274-1277, 1997.
-
(1997)
IEEE J. Solid-State Circuits
, vol.32
, pp. 1274-1277
-
-
Wodnicki, R.1
Roberts, G.W.2
Levine, M.3
-
30
-
-
27744543434
-
"A fpga based pci bus interface for a realtime log-polar image processing system"
-
Nov.
-
F. J. Blasco, F. Pardo, and J. A. Boluda, "A fpga based pci bus interface for a realtime log-polar image processing system," in Proc. Conf. Design of Circuits and Integrated Systems, Nov. 1999, pp. 379-384.
-
(1999)
Proc. Conf. Design of Circuits and Integrated Systems
, pp. 379-384
-
-
Blasco, F.J.1
Pardo, F.2
Boluda, J.A.3
-
31
-
-
0033692190
-
"A foveated silicon retina for two-dimensional tracking"
-
Jun.
-
R. Etienne-Cummings, J. V. der Spiegel, P. Mueller, and M. Z. Zhang, "A foveated silicon retina for two-dimensional tracking," IEEE Trans. Circuits Syst. II, Analog. Digit. Signal Process., vol. 47, pp. 504-517, Jun. 2000.
-
(2000)
IEEE Trans. Circuits Syst. II, Analog Digit. Signal Process.
, vol.47
, pp. 504-517
-
-
Etienne-Cummings, R.1
der Spiegel, J.V.2
Mueller, P.3
Zhang, M.Z.4
-
32
-
-
0016974698
-
"Position, rotation, and scale-invariant optical correlation"
-
D. Casasent and D. Psaltis, "Position, rotation, and scale-invariant optical correlation," Appl. Opt., vol. 15, pp. 1793-1799, 1976.
-
(1976)
Appl. Opt.
, vol.15
, pp. 1793-1799
-
-
Casasent, D.1
Psaltis, D.2
-
33
-
-
84925245477
-
"Registration of translated and rotated images using finite fourier transforms"
-
Sep.
-
E. D. Castro and C. Morandi, "Registration of translated and rotated images using finite fourier transforms," IEEE Trans. Pattern Anal. Mach. Intell., vol. 9, no. 3, pp. 700-703, Sep. 1987.
-
(1987)
IEEE Trans. Pattern Anal. Mach. Intell.
, vol.9
, Issue.3
, pp. 700-703
-
-
Castro, E.D.1
Morandi, C.2
-
34
-
-
0028731114
-
"Symmetric phase-only matched filtering of Fourier-Mellin transforms for image registration and recognition"
-
Dec.
-
Q. S. Chen, M. Defrise, and E Deconinck, "Symmetric phase-only matched filtering of Fourier-Mellin transforms for image registration and recognition," IEEE Trans. Pattern Anal. Mach. Intell., vol. 16, no. 12, pp. 1156-1168, Dec. 1994.
-
(1994)
IEEE Trans. Pattern Anal. Mach. Intell.
, vol.16
, Issue.12
, pp. 1156-1168
-
-
Chen, Q.S.1
Defrise, M.2
Deconinck, E.3
-
35
-
-
0030212172
-
"An fft-based technique for translation, rotation, and scale-invariant image registration"
-
Aug.
-
B. S. Reddy and B. N. Chatterji, "An fft-based technique for translation, rotation, and scale-invariant image registration," IEEE Trans. Pattern Anal. Mach. Intell., vol. 5, no. 8, pp. 1266-1270, Aug. 1996.
-
(1996)
IEEE Trans. Pattern Anal. Mach. Intell.
, vol.5
, Issue.8
, pp. 1266-1270
-
-
Reddy, B.S.1
Chatterji, B.N.2
-
36
-
-
13044277918
-
"A phase correlation technique for estimating planar rotations"
-
Sep.
-
L. Lucchese, G. Cortelazzo, and M. Rizzato, "A phase correlation technique for estimating planar rotations," in Proc. Int. Workshop Time- Varying Image Processing and Moving Object Recognition, Sep. 1996,pp. 244-249.
-
(1996)
Proc. Int. Workshop Time-Varying Image Processing and Moving Object Recognition
, pp. 244-249
-
-
Lucchese, L.1
Cortelazzo, G.2
Rizzato, M.3
-
37
-
-
0031061865
-
"Fast algorithm for pointer pattern matching; invariant to translations, rotations, and scale changes"
-
Feb.
-
S. H. Chang, F. H. Chen, W. H. Hsu, and G. Z. Wu, "Fast algorithm for pointer pattern matching; invariant to translations, rotations, and scale changes," Pattern Recognit., vol. 30, no. 2, pp. 311-320, Feb. 1997.
-
(1997)
Pattern Recognit.
, vol.30
, Issue.2
, pp. 311-320
-
-
Chang, S.H.1
Chen, F.H.2
Hsu, W.H.3
Wu, G.Z.4
-
38
-
-
0031360733
-
"Noise-robust estimation of planar roto-translations with high precision"
-
Oct.
-
L. Lucchese and G. M. Cortelazzo, "Noise-robust estimation of planar roto-translations with high precision," in Proc. IEEE Int. Conf. Image Processing, Oct. 1997, pp. 699-702.
-
(1997)
Proc. IEEE Int. Conf. Image Processing
, pp. 699-702
-
-
Lucchese, L.1
Cortelazzo, G.M.2
-
39
-
-
0030700181
-
"High resolution estimation of planar rotations based on fourier transform and radial projections"
-
Jun.
-
L. Lucchese, G. M. Cortelazzo, and C. Monti, "High resolution estimation of planar rotations based on fourier transform and radial projections," in Proc. ISCAS, vol. 2, Jun. 1997, pp. 1181-1184.
-
(1997)
Proc. ISCAS
, vol.2
, pp. 1181-1184
-
-
Lucchese, L.1
Cortelazzo, G.M.2
Monti, C.3
-
40
-
-
0033329880
-
"Subpixel registration of images"
-
Oct.
-
H. Stone, M. Orchard, and E. Chang, "Subpixel registration of images," in Proc. 33rd Asilomar Conf. on Signals, Systems, and Computers, Oct. 1999, pp. 1446-1452.
-
(1999)
Proc. 33rd Asilomar Conf. on Signals, Systems, and Computers
, pp. 1446-1452
-
-
Stone, H.1
Orchard, M.2
Chang, E.3
-
41
-
-
0038136887
-
"Analysis of image registration noise due to rotationally dependent aliasing"
-
H. Stone, B. Tao, and M. McGuire, "Analysis of image registration noise due to rotationally dependent aliasing," J. Vis. Commun. Image Represen., vol. 14, pp. 114-135, 2003.
-
(2003)
J. Vis. Commun. Image Represen.
, vol.14
, pp. 114-135
-
-
Stone, H.1
Tao, B.2
McGuire, M.3
-
42
-
-
0029271481
-
"A contour-based approach to multisensor image registration"
-
Mar.
-
H. Li, B. S. Manjunath, and S. K Mitra, "A contour-based approach to multisensor image registration," IEEE Trans. Image Process., vol. 4, no. 3, pp. 320-334, Mar. 1995.
-
(1995)
IEEE Trans. Image Process.
, vol.4
, Issue.3
, pp. 320-334
-
-
Li, H.1
Manjunath, B.S.2
Mitra, S.K.3
-
43
-
-
0028403389
-
"A moment-based approach to registration of images with affine geometric distortion"
-
Mar.
-
J. Flusser and T. Suk, "A moment-based approach to registration of images with affine geometric distortion," IEEE Trans. Geosci. Remote Sens., vol. 32, no. 2, pp. 382-387, Mar. 1994.
-
(1994)
IEEE Trans. Geosci. Remote Sens.
, vol.32
, Issue.2
, pp. 382-387
-
-
Flusser, J.1
Suk, T.2
-
44
-
-
0033328988
-
"A feature-based image registration algorithm using improved chain-code representation combined with invariant moments"
-
Sep.
-
X. Dai and S. Khorram, "A feature-based image registration algorithm using improved chain-code representation combined with invariant moments," IEEE Trans. Geosci. Remote Sens., vol. 37, no. 5, pp. 2351-2362, Sep. 1999.
-
(1999)
IEEE Trans. Geosci. Remote Sens.
, vol.37
, Issue.5
, pp. 2351-2362
-
-
Dai, X.1
Khorram, S.2
-
45
-
-
0025433830
-
"Image registration by recognition of corresponding structures"
-
May
-
A. D. Ventura, A. Rampini, and R. Schettini, "Image registration by recognition of corresponding structures," IEEE Trans. Geosci. Remote Sens., vol. 28, no. 3, pp. 305-314, May 1990.
-
(1990)
IEEE Trans. Geosci. Remote Sens.
, vol.28
, Issue.3
, pp. 305-314
-
-
Ventura, A.D.1
Rampini, A.2
Schettini, R.3
-
46
-
-
0026407572
-
"Toward automatic rectification of satellite images using feature based matching"
-
M. Holm, "Toward automatic rectification of satellite images using feature based matching," in Proc. Int. Geoscience and Remote Sensing Symp., 1991, pp. 2439-2442.
-
(1991)
Proc. Int. Geoscience and Remote Sensing Symp.
, pp. 2439-2442
-
-
Holm, M.1
-
47
-
-
0022717567
-
"A region-based approach to digital image registration with subpixel accuracy"
-
May
-
A. Goshtasby, G. C. Stockman, and C. V. Page, "A region-based approach to digital image registration with subpixel accuracy," IEEE Trans. Geosci. Remote Sens., vol. 24, no. 3, pp. 390-399, May 1986.
-
(1986)
IEEE Trans. Geosci. Remote Sens.
, vol.24
, Issue.3
, pp. 390-399
-
-
Goshtasby, A.1
Stockman, G.C.2
Page, C.V.3
-
49
-
-
3042535216
-
"Distinctive image features from scale-invariant keypoints"
-
D. Lowe, "Distinctive image features from scale-invariant keypoints," Int. J. Comput. Vis., vol. 60, no. 2, pp. 91-110, 2004.
-
(2004)
Int. J. Comput. Vis.
, vol.60
, Issue.2
, pp. 91-110
-
-
Lowe, D.1
-
50
-
-
0034844799
-
"Viewpoint invariant texture matching and wide baseline stereo"
-
Jul.
-
F. Schaffalitzky and A. Zisserman, "Viewpoint invariant texture matching and wide baseline stereo," in Proc. ICCV, Jul. 2001, pp. 636-643.
-
(2001)
Proc. ICCV
, pp. 636-643
-
-
Schaffalitzky, F.1
Zisserman, A.2
-
51
-
-
0002809344
-
"Wide baseline stereo matching based on local affinely invariant regions"
-
T. Tuytelaars and L. V. Gool, "Wide baseline stereo matching based on local affinely invariant regions," in Proc. Ilth British Machine Vision Conf., 2000, pp. 412-422.
-
(2000)
Proc. Ilth British Machine Vision Conf.
, pp. 412-422
-
-
Tuytelaars, T.1
Gool, L.V.2
-
52
-
-
3042580897
-
"Point matching under large image deformations and illumination changes"
-
Jun.
-
B. Georgescu and P. Meer, "Point matching under large image deformations and illumination changes," IEEE Trans. Pattern Anal. Mach. Intell., vol. 26, no. 6, pp. 674-689, Jun. 2004.
-
(2004)
IEEE Trans. Pattern Anal. Mach. Intell.
, vol.26
, Issue.6
, pp. 674-689
-
-
Georgescu, B.1
Meer, P.2
-
53
-
-
0344078742
-
"Wide-baseline multiple-view correspondences"
-
V. Ferrari, T. Tuytelaars, and L. V. Gool, "Wide-baseline multiple-view correspondences," in Proc. IEEE Conf. Computer Vision and Pattern Recognition, 2003, pp. 718-725.
-
(2003)
Proc. IEEE Conf. Computer Vision and Pattern Recognition
, pp. 718-725
-
-
Ferrari, V.1
Tuytelaars, T.2
Gool, L.V.3
-
54
-
-
0033719703
-
"Matching images with different resolutions"
-
Jun.
-
Y. Dufournaud, C. Schmid, and R. Horaud, "Matching images with different resolutions," in Proc. IEEE Conf. Computer Vision and Pattern Recognition, Jun. 2000, pp. 612-618.
-
(2000)
Proc. IEEE Conf. Computer Vision and Pattern Recognition
, pp. 612-618
-
-
Dufournaud, Y.1
Schmid, C.2
Horaud, R.3
-
56
-
-
27744586000
-
"Image matching with scale adjustment"
-
INRIA Rhone-Alpes Montbonnot Saint-Martin, Tech. Rep. RR 4458
-
Y. Dufournaud, C. Schmid, and R. Horaud, "Image matching with scale adjustment," INRIA Rhone-Alpes Montbonnot Saint-Martin, Tech. Rep. RR 4458, 2002.
-
(2002)
-
-
Dufournaud, Y.1
Schmid, C.2
Horaud, R.3
-
57
-
-
0004220095
-
-
Los Alamitos, CA: IEEE Computer Sec.
-
G. Wolberg, Digital Image Warping. Los Alamitos, CA: IEEE Computer Sec., 1990.
-
(1990)
Digital Image Warping
-
-
Wolberg, G.1
-
58
-
-
0026359271
-
"Improving resolution by image registration"
-
Mar.
-
M. Irani and S. Peleg, "Improving resolution by image registration," CVGIP: Graph. Models Image Process., vol. 53, pp. 231-239, Mar. 1991.
-
(1991)
CVGIP: Graph. Models Image Process.
, vol.53
, pp. 231-239
-
-
Irani, M.1
Peleg, S.2
-
60
-
-
79551559765
-
"A multiresolution spline with application to image mosaics"
-
Oct.
-
P. J. Burt and E. H. Adelson, "A multiresolution spline with application to image mosaics," ACM Trans. Graphics, vol. 2, no. 4, pp. 217-236, Oct. 1983.
-
(1983)
ACM Trans. Graphics
, vol.2
, Issue.4
, pp. 217-236
-
-
Burt, P.J.1
Adelson, E.H.2
-
61
-
-
0035680073
-
"Optimal texture map reconstruction from multiple views"
-
Dec.
-
L. Wang, S. Kang, R. Szeliski, and H. Shum, "Optimal texture map reconstruction from multiple views," in Proc. IEEE Conf Computer Vision and Pattern Recognition, Dec. 2001, pp. 347-354.
-
(2001)
Proc. IEEE Conf. Computer Vision and Pattern Recognition
, pp. 347-354
-
-
Wang, L.1
Kang, S.2
Szeliski, R.3
Shum, H.4
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