Defocus map estimation from a single image
In this paper, we address the challenging problem of recovering the defocus map from a single image. We present a simple yet effective approach to estimate the amount of spatially varying defocus blur at edge locations. The input defocused image is re-blurred using a Gaussian kernel and the defocus...
Saved in:
| Published in | Pattern recognition Vol. 44; no. 9; pp. 1852 - 1858 |
|---|---|
| Main Authors | , |
| Format | Journal Article |
| Language | English |
| Published |
Elsevier Ltd
01.09.2011
|
| Subjects | |
| Online Access | Get full text |
Cover
Loading…
| Abstract | In this paper, we address the challenging problem of recovering the defocus map from a single image. We present a simple yet effective approach to estimate the amount of spatially varying defocus blur at edge locations. The input defocused image is re-blurred using a Gaussian kernel and the defocus blur amount can be obtained from the ratio between the gradients of input and re-blurred images. By propagating the blur amount at edge locations to the entire image, a full defocus map can be obtained. Experimental results on synthetic and real images demonstrate the effectiveness of our method in providing a reliable estimation of the defocus map.
► We address the challenging problem of defocus estimation from a single image. ► The defocus blur is estimated at edge locations from the gradient ratio between tlie original and re-blurred input image. ► A hill defocus map is obtained by propagating the blur amount at edges to the entire image using soft matting. ► We also discuss the ambiguities in defocus estimation and the relationship between defocus map and depth. |
|---|---|
| AbstractList | In this paper, we address the challenging problem of recovering the defocus map from a single image. We present a simple yet effective approach to estimate the amount of spatially varying defocus blur at edge locations. The input defocused image is re-blurred using a Gaussian kernel and the defocus blur amount can be obtained from the ratio between the gradients of input and re-blurred images. By propagating the blur amount at edge locations to the entire image, a full defocus map can be obtained. Experimental results on synthetic and real images demonstrate the effectiveness of our method in providing a reliable estimation of the defocus map.
► We address the challenging problem of defocus estimation from a single image. ► The defocus blur is estimated at edge locations from the gradient ratio between tlie original and re-blurred input image. ► A hill defocus map is obtained by propagating the blur amount at edges to the entire image using soft matting. ► We also discuss the ambiguities in defocus estimation and the relationship between defocus map and depth. In this paper, we address the challenging problem of recovering the defocus map from a single image. We present a simple yet effective approach to estimate the amount of spatially varying defocus blur at edge locations. The input defocused image is re-blurred using a Gaussian kernel and the defocus blur amount can be obtained from the ratio between the gradients of input and re-blurred images. By propagating the blur amount at edge locations to the entire image, a full defocus map can be obtained. Experimental results on synthetic and real images demonstrate the effectiveness of our method in providing a reliable estimation of the defocus map. We address the challenging problem of defocus estimation from a single image. The defocus blur is estimated at edge locations from the gradient ratio between tlie original and re-blurred input image. A hill defocus map is obtained by propagating the blur amount at edges to the entire image using soft matting. We also discuss the ambiguities in defocus estimation and the relationship between defocus map and depth. |
| Author | Zhuo, Shaojie Sim, Terence |
| Author_xml | – sequence: 1 givenname: Shaojie surname: Zhuo fullname: Zhuo, Shaojie email: zhuoshao@comp.nus.edu.sg – sequence: 2 givenname: Terence surname: Sim fullname: Sim, Terence |
| BookMark | eNp9kE9rwzAMxc3oYG23b7BDboNBMsl2WucyGN1fKOyynY3rKMUliTM7HezbzyU77ySQ3pOefgs2631PjF0jFAi4ujsUgxmt3xccEAsQBUB1xuao1iIvUfIZmwMIzAUHccEWMR4AcJ0Gc3b7SI23x5h1Zsgojq4zo_N91gTfZSaLrt-3lKXuni7ZeWPaSFd_dck-n58-Nq_59v3lbfOwza0QaswRVnW6RiupyhJxV_PduhaNBVlLLngliTg3CupSKpOEgFAaZbm0VAncWbFkN9PeIfivY8qkOxctta3pyR-jVqoSVYlKJKWclDb4GAM1eggpavjRCPpERh_0REafyGgQOpFJtvvJRumLb0dBR-uot1S7QHbUtXf_L_gFcyptsA |
| CitedBy_id | crossref_primary_10_1049_ipr2_12057 crossref_primary_10_1109_TCSVT_2018_2832086 crossref_primary_10_3390_electronics13122265 crossref_primary_10_1364_OE_409046 crossref_primary_10_1007_s10278_018_0056_0 crossref_primary_10_1016_j_optlastec_2023_110225 crossref_primary_10_1364_BOE_448803 crossref_primary_10_1111_cgf_13360 crossref_primary_10_4236_jcc_2021_93010 crossref_primary_10_1016_j_patcog_2020_107485 crossref_primary_10_1364_OE_24_012868 crossref_primary_10_1007_s11042_023_14779_2 crossref_primary_10_1016_j_cviu_2014_09_009 crossref_primary_10_1109_TVCG_2016_2515614 crossref_primary_10_1016_j_jvcir_2022_103656 crossref_primary_10_1007_s11042_020_08813_w crossref_primary_10_1007_s00371_022_02609_9 crossref_primary_10_1016_j_measurement_2024_115045 crossref_primary_10_1109_ACCESS_2019_2924033 crossref_primary_10_1117_1_OE_55_12_123106 crossref_primary_10_1007_s10916_019_1315_4 crossref_primary_10_1364_JOSAA_422059 crossref_primary_10_1021_acs_iecr_9b00426 crossref_primary_10_1364_OE_482158 crossref_primary_10_3788_LOP223110 crossref_primary_10_3390_app7060517 crossref_primary_10_1080_09500340_2013_868553 crossref_primary_10_1109_TMM_2020_2985541 crossref_primary_10_3390_s22082936 crossref_primary_10_1016_j_patcog_2017_03_035 crossref_primary_10_1016_j_imavis_2019_08_008 crossref_primary_10_1109_TIP_2013_2270086 crossref_primary_10_1364_JOSAA_499900 crossref_primary_10_1587_transinf_2017EDP7119 crossref_primary_10_1007_s10044_023_01133_3 crossref_primary_10_1109_TCSVT_2012_2203747 crossref_primary_10_1117_1_OE_55_10_103102 crossref_primary_10_1109_TIP_2016_2528042 crossref_primary_10_2200_S01065ED1V01Y202012ASE020 crossref_primary_10_1007_s11263_023_01964_x crossref_primary_10_1016_j_sigpro_2020_107670 crossref_primary_10_1016_j_jvcir_2016_10_008 crossref_primary_10_1109_TIP_2021_3127850 crossref_primary_10_1109_ACCESS_2023_3292116 crossref_primary_10_1117_1_AP_6_1_014002 crossref_primary_10_1016_j_measurement_2022_111418 crossref_primary_10_1088_1757_899X_466_1_012046 crossref_primary_10_1016_j_image_2016_06_009 crossref_primary_10_1109_TIP_2016_2526907 crossref_primary_10_1364_JOSAA_35_000480 crossref_primary_10_1109_TCSVT_2021_3130158 crossref_primary_10_1016_j_jvcir_2016_01_002 crossref_primary_10_1049_iet_ipr_2019_0577 crossref_primary_10_1109_ACCESS_2019_2950141 crossref_primary_10_1016_j_imavis_2023_104842 crossref_primary_10_26552_com_C_2019_3_28_34 crossref_primary_10_1109_ACCESS_2019_2924330 crossref_primary_10_1109_TIM_2017_2709561 crossref_primary_10_1137_15M1008889 crossref_primary_10_1109_TIP_2024_3409940 crossref_primary_10_1007_s10489_022_03303_y crossref_primary_10_1007_s11045_019_00675_2 crossref_primary_10_1016_j_imavis_2023_104845 crossref_primary_10_1109_ACCESS_2021_3084905 crossref_primary_10_1109_LSP_2016_2611608 crossref_primary_10_1145_2816795_2818136 crossref_primary_10_1007_s00371_014_1050_2 crossref_primary_10_1016_j_inffus_2016_09_006 crossref_primary_10_1109_TCI_2021_3092891 crossref_primary_10_1109_TIP_2021_3065171 crossref_primary_10_1364_AO_57_00B160 crossref_primary_10_1080_09500340_2014_967321 crossref_primary_10_1109_TIP_2021_3071682 crossref_primary_10_1109_TIM_2014_2324792 crossref_primary_10_1109_ACCESS_2020_3026332 crossref_primary_10_1371_journal_pone_0284742 crossref_primary_10_1109_LRA_2017_2772330 crossref_primary_10_1016_j_patrec_2013_12_019 crossref_primary_10_1007_s11704_020_9526_x crossref_primary_10_1016_j_inffus_2022_08_023 crossref_primary_10_1007_s10032_017_0286_6 crossref_primary_10_2139_ssrn_4147683 crossref_primary_10_1016_j_optlastec_2022_109035 crossref_primary_10_1364_BOE_475705 crossref_primary_10_1117_1_OE_58_6_063103 crossref_primary_10_1155_2017_6089650 crossref_primary_10_1109_ACCESS_2020_2978084 crossref_primary_10_1109_TMM_2015_2410175 crossref_primary_10_1364_OE_25_004926 crossref_primary_10_1109_TIP_2018_2838660 crossref_primary_10_1007_s11042_015_2535_3 crossref_primary_10_1007_s11042_023_14528_5 crossref_primary_10_1016_j_optlaseng_2023_107828 crossref_primary_10_1109_TCE_2017_014952 crossref_primary_10_1016_j_neucom_2018_08_024 crossref_primary_10_1109_LRA_2021_3092258 crossref_primary_10_1364_AO_415431 crossref_primary_10_1364_OE_26_019986 crossref_primary_10_1111_cgf_13567 crossref_primary_10_1364_OE_519059 crossref_primary_10_1016_j_ceramint_2022_09_272 crossref_primary_10_1109_TIP_2016_2617460 crossref_primary_10_1109_TIP_2023_3240856 crossref_primary_10_1007_s11036_021_01870_x crossref_primary_10_1016_j_patcog_2018_03_009 crossref_primary_10_1016_j_daach_2019_e00109 crossref_primary_10_1016_j_icte_2019_10_003 crossref_primary_10_2139_ssrn_4141062 crossref_primary_10_1007_s00371_018_1599_2 crossref_primary_10_17311_tas_2024_157_179 crossref_primary_10_1080_09540091_2021_1933906 crossref_primary_10_1109_TIP_2014_2350914 crossref_primary_10_1109_TIP_2014_2375639 crossref_primary_10_1007_s11760_018_1400_z crossref_primary_10_1109_TIP_2018_2847421 crossref_primary_10_1007_s11045_019_00670_7 crossref_primary_10_1364_OL_38_001706 crossref_primary_10_1109_TCYB_2015_2472478 crossref_primary_10_1109_TCSVT_2020_2990623 crossref_primary_10_1049_iet_ipr_2018_5663 crossref_primary_10_1109_TIP_2019_2911484 crossref_primary_10_1364_AO_56_002038 crossref_primary_10_1364_AO_59_000558 crossref_primary_10_1016_j_optlaseng_2024_108417 crossref_primary_10_1371_journal_pone_0191085 crossref_primary_10_1155_2021_2973108 crossref_primary_10_1002_ett_3611 crossref_primary_10_1016_j_chemolab_2017_07_005 crossref_primary_10_1109_TIP_2021_3061901 crossref_primary_10_1109_TIP_2020_3018261 crossref_primary_10_1109_TCSVT_2015_2477915 crossref_primary_10_26634_jip_9_4_19285 crossref_primary_10_1016_j_optlaseng_2017_05_017 crossref_primary_10_1016_j_optlaseng_2023_107784 crossref_primary_10_3390_mi14091689 crossref_primary_10_1109_TPAMI_2017_2761348 crossref_primary_10_1371_journal_pone_0217246 crossref_primary_10_1109_TPAMI_2020_3014629 crossref_primary_10_5626_JOK_2015_42_5_609 crossref_primary_10_1007_s11042_023_17560_7 crossref_primary_10_1109_TIP_2021_3139243 crossref_primary_10_1016_j_patcog_2023_109688 crossref_primary_10_1109_JTEHM_2017_2648797 crossref_primary_10_1109_TCSVT_2019_2944915 crossref_primary_10_1364_AO_57_001807 crossref_primary_10_1007_s00371_015_1166_z crossref_primary_10_1109_TIP_2017_2702383 crossref_primary_10_1016_j_sigpro_2021_107996 crossref_primary_10_1109_TIM_2023_3343743 crossref_primary_10_1109_ACCESS_2020_2996200 crossref_primary_10_1364_OE_23_021958 crossref_primary_10_1109_TIP_2018_2881830 crossref_primary_10_1109_TPAMI_2019_2906588 crossref_primary_10_1007_s00138_020_01162_6 crossref_primary_10_1109_TIP_2017_2771563 crossref_primary_10_1007_s40747_022_00711_y crossref_primary_10_3390_s22072724 crossref_primary_10_1007_s11045_018_0570_8 crossref_primary_10_1371_journal_pone_0303633 crossref_primary_10_1038_s41598_024_60179_3 crossref_primary_10_1137_16M1083505 crossref_primary_10_3390_app8050807 crossref_primary_10_1109_ACCESS_2023_3309820 crossref_primary_10_1016_j_neucom_2020_06_068 crossref_primary_10_1049_el_2016_0969 crossref_primary_10_1109_JSTQE_2023_3270337 crossref_primary_10_3390_s23177491 crossref_primary_10_1016_j_measurement_2021_110501 crossref_primary_10_1109_TIP_2023_3347915 crossref_primary_10_1364_OSAC_2_002901 crossref_primary_10_1109_TIP_2013_2274389 crossref_primary_10_1364_OL_39_006281 crossref_primary_10_1016_j_jvcir_2016_11_004 crossref_primary_10_1016_j_vrih_2023_06_008 crossref_primary_10_1109_LSP_2014_2343251 crossref_primary_10_3390_s22051993 crossref_primary_10_3934_ipi_2017004 crossref_primary_10_1109_TCSVT_2022_3155626 crossref_primary_10_1016_j_optcom_2014_10_031 |
| Cites_doi | 10.1109/TPAMI.2007.1177 10.1109/TPAMI.2005.43 10.1109/TPAMI.2007.1175 10.1145/1360612.1360669 10.1109/TPAMI.1986.4767851 10.1145/1015706.1015780 10.1109/TPAMI.1987.4767940 10.1145/1276377.1276464 10.1145/1015706.1015777 10.1145/1276377.1276461 10.1109/34.689301 |
| ContentType | Journal Article |
| Copyright | 2011 Elsevier Ltd |
| Copyright_xml | – notice: 2011 Elsevier Ltd |
| DBID | AAYXX CITATION 7SC 8FD JQ2 L7M L~C L~D |
| DOI | 10.1016/j.patcog.2011.03.009 |
| DatabaseName | CrossRef Computer and Information Systems Abstracts Technology Research Database ProQuest Computer Science Collection Advanced Technologies Database with Aerospace Computer and Information Systems Abstracts Academic Computer and Information Systems Abstracts Professional |
| DatabaseTitle | CrossRef Computer and Information Systems Abstracts Technology Research Database Computer and Information Systems Abstracts – Academic Advanced Technologies Database with Aerospace ProQuest Computer Science Collection Computer and Information Systems Abstracts Professional |
| DatabaseTitleList | Computer and Information Systems Abstracts |
| DeliveryMethod | fulltext_linktorsrc |
| Discipline | Computer Science |
| EISSN | 1873-5142 |
| EndPage | 1858 |
| ExternalDocumentID | 10_1016_j_patcog_2011_03_009 S003132031100094X |
| GroupedDBID | --K --M -D8 -DT -~X .DC .~1 0R~ 123 1B1 1RT 1~. 1~5 29O 4.4 457 4G. 53G 5VS 7-5 71M 8P~ 9JN AABNK AACTN AAEDT AAEDW AAIAV AAIKJ AAKOC AALRI AAOAW AAQFI AAQXK AAXUO AAYFN ABBOA ABEFU ABFNM ABFRF ABHFT ABJNI ABMAC ABTAH ABXDB ABYKQ ACBEA ACDAQ ACGFO ACGFS ACNNM ACRLP ACZNC ADBBV ADEZE ADJOM ADMUD ADMXK ADTZH AEBSH AECPX AEFWE AEKER AENEX AFKWA AFTJW AGHFR AGUBO AGYEJ AHHHB AHJVU AHZHX AIALX AIEXJ AIKHN AITUG AJBFU AJOXV ALMA_UNASSIGNED_HOLDINGS AMFUW AMRAJ AOUOD ASPBG AVWKF AXJTR AZFZN BJAXD BKOJK BLXMC CS3 DU5 EBS EFJIC EFLBG EJD EO8 EO9 EP2 EP3 F0J F5P FD6 FDB FEDTE FGOYB FIRID FNPLU FYGXN G-Q G8K GBLVA GBOLZ HLZ HVGLF HZ~ H~9 IHE J1W JJJVA KOM KZ1 LG9 LMP LY1 M41 MO0 N9A O-L O9- OAUVE OZT P-8 P-9 P2P PC. Q38 R2- RIG RNS ROL RPZ SBC SDF SDG SDP SDS SES SEW SPC SPCBC SST SSV SSZ T5K TN5 UNMZH VOH WUQ XJE XPP ZMT ZY4 ~G- AAXKI AAYXX AFJKZ AKRWK CITATION 7SC 8FD JQ2 L7M L~C L~D |
| ID | FETCH-LOGICAL-c338t-106d003e6485511bd2b7d3fc04d423294ee22a80d548a0030105a8c24ce931bc3 |
| IEDL.DBID | AIKHN |
| ISSN | 0031-3203 |
| IngestDate | Sat Oct 26 00:40:55 EDT 2024 Thu Sep 26 19:03:38 EDT 2024 Fri Feb 23 02:33:57 EST 2024 |
| IsPeerReviewed | true |
| IsScholarly | true |
| Issue | 9 |
| Keywords | Gaussian gradient Image processing Defocus blur Defocus magnification Defocus map |
| Language | English |
| LinkModel | DirectLink |
| MergedId | FETCHMERGED-LOGICAL-c338t-106d003e6485511bd2b7d3fc04d423294ee22a80d548a0030105a8c24ce931bc3 |
| Notes | ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
| PQID | 889395183 |
| PQPubID | 23500 |
| PageCount | 7 |
| ParticipantIDs | proquest_miscellaneous_889395183 crossref_primary_10_1016_j_patcog_2011_03_009 elsevier_sciencedirect_doi_10_1016_j_patcog_2011_03_009 |
| PublicationCentury | 2000 |
| PublicationDate | 2011-09-01 |
| PublicationDateYYYYMMDD | 2011-09-01 |
| PublicationDate_xml | – month: 09 year: 2011 text: 2011-09-01 day: 01 |
| PublicationDecade | 2010 |
| PublicationTitle | Pattern recognition |
| PublicationYear | 2011 |
| Publisher | Elsevier Ltd |
| Publisher_xml | – name: Elsevier Ltd |
| References | Favaro, Soatto, Burger, Osher (bib2) 2008; 30 Moreno-Noguer, Belhumeur, Nayar (bib6) 2007; 26 Zhang, Cham (bib10) 2009 Zhou, Lin, Nayar (bib5) 2009 Levin, Lischinski, Weiss (bib18) 2008; 30 Pentland (bib3) 1987; 9 Favaro, Soatto (bib1) 2005; 27 Levin, Lischinski, Weiss (bib16) 2004; 23 Namboodiri, Chaudhuri (bib11) 2008 Hsu, Mertens, Paris, Avidan, Durand (bib20) 2008; 27 Elder, Zucker (bib8) 1998; 20 Levin, Fergus, Durand, Freeman (bib7) 2007; 26 Bae, Durand (bib9) 2007 Tai, Brown (bib12) 2009 Lischinski, Farbman, Uyttendaele, Szeliski (bib17) 2006 He, Sun, Tang (bib19) 2010; 99 Hecht (bib13) 2001 Zhou, Cossairt, Nayar (bib4) 2010 Petschnigg, Szeliski, Agrawala, Cohen, Hoppe, Toyama (bib15) 2004; 23 Canny (bib14) 1986; 8 Favaro (10.1016/j.patcog.2011.03.009_bib1) 2005; 27 Moreno-Noguer (10.1016/j.patcog.2011.03.009_bib6) 2007; 26 Petschnigg (10.1016/j.patcog.2011.03.009_bib15) 2004; 23 Levin (10.1016/j.patcog.2011.03.009_bib18) 2008; 30 Zhou (10.1016/j.patcog.2011.03.009_bib5) 2009 Hecht (10.1016/j.patcog.2011.03.009_bib13) 2001 Levin (10.1016/j.patcog.2011.03.009_bib7) 2007; 26 He (10.1016/j.patcog.2011.03.009_bib19) 2010; 99 Zhang (10.1016/j.patcog.2011.03.009_bib10) 2009 Canny (10.1016/j.patcog.2011.03.009_bib14) 1986; 8 Pentland (10.1016/j.patcog.2011.03.009_bib3) 1987; 9 Namboodiri (10.1016/j.patcog.2011.03.009_bib11) 2008 Hsu (10.1016/j.patcog.2011.03.009_bib20) 2008; 27 Bae (10.1016/j.patcog.2011.03.009_bib9) 2007 Favaro (10.1016/j.patcog.2011.03.009_bib2) 2008; 30 Tai (10.1016/j.patcog.2011.03.009_bib12) 2009 Zhou (10.1016/j.patcog.2011.03.009_bib4) 2010 Lischinski (10.1016/j.patcog.2011.03.009_bib17) 2006 Elder (10.1016/j.patcog.2011.03.009_bib8) 1998; 20 Levin (10.1016/j.patcog.2011.03.009_bib16) 2004; 23 |
| References_xml | – start-page: 646 year: 2006 end-page: 653 ident: bib17 article-title: Interactive local adjustment of tonal values publication-title: ACM Trans. Graphics contributor: fullname: Szeliski – volume: 8 start-page: 679 year: 1986 end-page: 698 ident: bib14 article-title: A computational approach to edge detection publication-title: IEEE Trans. Pattern Anal. Mach. Intell. contributor: fullname: Canny – volume: 30 start-page: 518 year: 2008 end-page: 531 ident: bib2 article-title: Shape from defocus via diffusion publication-title: IEEE Trans. Pattern Anal. Mach. Intell. contributor: fullname: Osher – volume: 26 start-page: 70 year: 2007 end-page: 78 ident: bib7 article-title: Image and depth from a conventional camera with a coded aperture publication-title: ACM Trans. Graphics contributor: fullname: Freeman – year: 2009 ident: bib12 article-title: Single image defocus map estimation using local contrast prior publication-title: Proceedings of ICIP contributor: fullname: Brown – start-page: 1947 year: 2009 end-page: 1954 ident: bib10 article-title: Single image focus editing publication-title: ICCV Workshop contributor: fullname: Cham – volume: 99 year: 2010 ident: bib19 article-title: Single image haze removal using dark channel prior publication-title: IEEE Trans. Pattern Anal. Mach. Intell. contributor: fullname: Tang – start-page: 1110 year: 2010 end-page: 1117 ident: bib4 article-title: Depth from diffusion publication-title: Proceedings of CVPR contributor: fullname: Nayar – start-page: 325 year: 2009 end-page: 332 ident: bib5 article-title: Coded aperture pairs for depth from defocus publication-title: Proceedings of ICCV contributor: fullname: Nayar – start-page: 1 year: 2008 end-page: 6 ident: bib11 article-title: Recovery of relative depth from a single observation using an uncalibrated (real-aperture) camera publication-title: Proceedings of CVPR contributor: fullname: Chaudhuri – volume: 23 start-page: 664 year: 2004 end-page: 672 ident: bib15 article-title: Digital photography with flash and no-flash image pairs publication-title: ACM Trans. Graphics contributor: fullname: Toyama – volume: 27 start-page: 70:1 year: 2008 end-page: 70:7 ident: bib20 article-title: Light mixture estimation for spatially varying white balance publication-title: ACM Trans. Graphics contributor: fullname: Durand – volume: 27 start-page: 406 year: 2005 end-page: 417 ident: bib1 article-title: A geometric approach to shape from defocus publication-title: IEEE Trans. Pattern Anal. Mach. Intell. contributor: fullname: Soatto – volume: 30 start-page: 228 year: 2008 end-page: 242 ident: bib18 article-title: A closed-form solution to natural image matting publication-title: IEEE Trans. Pattern Anal. Mach. Intell. contributor: fullname: Weiss – start-page: 571 year: 2007 end-page: 579 ident: bib9 article-title: Defocus magnification publication-title: Proceedings of Eurographics contributor: fullname: Durand – volume: 20 start-page: 699 year: 1998 end-page: 716 ident: bib8 article-title: Local scale control for edge detection and blur estimation publication-title: IEEE Trans. Pattern Anal. Mach. Intell. contributor: fullname: Zucker – year: 2001 ident: bib13 article-title: Optics contributor: fullname: Hecht – volume: 9 start-page: 523 year: 1987 end-page: 531 ident: bib3 article-title: A new sense for depth of field publication-title: IEEE Trans. Pattern Anal. Mach. Intell. contributor: fullname: Pentland – volume: 26 start-page: 67 year: 2007 end-page: 75 ident: bib6 article-title: Active refocusing of images and videos publication-title: ACM Trans. Graphics contributor: fullname: Nayar – volume: 23 start-page: 689 year: 2004 end-page: 694 ident: bib16 article-title: Colorization using optimization publication-title: ACM Trans. Graphics contributor: fullname: Weiss – year: 2001 ident: 10.1016/j.patcog.2011.03.009_bib13 contributor: fullname: Hecht – start-page: 1110 year: 2010 ident: 10.1016/j.patcog.2011.03.009_bib4 article-title: Depth from diffusion contributor: fullname: Zhou – volume: 30 start-page: 228 issue: 2 year: 2008 ident: 10.1016/j.patcog.2011.03.009_bib18 article-title: A closed-form solution to natural image matting publication-title: IEEE Trans. Pattern Anal. Mach. Intell. doi: 10.1109/TPAMI.2007.1177 contributor: fullname: Levin – volume: 27 start-page: 406 issue: 3 year: 2005 ident: 10.1016/j.patcog.2011.03.009_bib1 article-title: A geometric approach to shape from defocus publication-title: IEEE Trans. Pattern Anal. Mach. Intell. doi: 10.1109/TPAMI.2005.43 contributor: fullname: Favaro – volume: 30 start-page: 518 issue: 3 year: 2008 ident: 10.1016/j.patcog.2011.03.009_bib2 article-title: Shape from defocus via diffusion publication-title: IEEE Trans. Pattern Anal. Mach. Intell. doi: 10.1109/TPAMI.2007.1175 contributor: fullname: Favaro – volume: 99 year: 2010 ident: 10.1016/j.patcog.2011.03.009_bib19 article-title: Single image haze removal using dark channel prior publication-title: IEEE Trans. Pattern Anal. Mach. Intell. contributor: fullname: He – year: 2009 ident: 10.1016/j.patcog.2011.03.009_bib12 article-title: Single image defocus map estimation using local contrast prior contributor: fullname: Tai – volume: 27 start-page: 70:1 year: 2008 ident: 10.1016/j.patcog.2011.03.009_bib20 article-title: Light mixture estimation for spatially varying white balance publication-title: ACM Trans. Graphics doi: 10.1145/1360612.1360669 contributor: fullname: Hsu – start-page: 1 year: 2008 ident: 10.1016/j.patcog.2011.03.009_bib11 article-title: Recovery of relative depth from a single observation using an uncalibrated (real-aperture) camera contributor: fullname: Namboodiri – start-page: 325 year: 2009 ident: 10.1016/j.patcog.2011.03.009_bib5 article-title: Coded aperture pairs for depth from defocus contributor: fullname: Zhou – start-page: 571 year: 2007 ident: 10.1016/j.patcog.2011.03.009_bib9 article-title: Defocus magnification contributor: fullname: Bae – start-page: 1947 year: 2009 ident: 10.1016/j.patcog.2011.03.009_bib10 article-title: Single image focus editing contributor: fullname: Zhang – volume: 8 start-page: 679 issue: 6 year: 1986 ident: 10.1016/j.patcog.2011.03.009_bib14 article-title: A computational approach to edge detection publication-title: IEEE Trans. Pattern Anal. Mach. Intell. doi: 10.1109/TPAMI.1986.4767851 contributor: fullname: Canny – start-page: 646 year: 2006 ident: 10.1016/j.patcog.2011.03.009_bib17 article-title: Interactive local adjustment of tonal values contributor: fullname: Lischinski – volume: 23 start-page: 689 issue: 3 year: 2004 ident: 10.1016/j.patcog.2011.03.009_bib16 article-title: Colorization using optimization publication-title: ACM Trans. Graphics doi: 10.1145/1015706.1015780 contributor: fullname: Levin – volume: 9 start-page: 523 issue: 4 year: 1987 ident: 10.1016/j.patcog.2011.03.009_bib3 article-title: A new sense for depth of field publication-title: IEEE Trans. Pattern Anal. Mach. Intell. doi: 10.1109/TPAMI.1987.4767940 contributor: fullname: Pentland – volume: 26 start-page: 70 issue: 3 year: 2007 ident: 10.1016/j.patcog.2011.03.009_bib7 article-title: Image and depth from a conventional camera with a coded aperture publication-title: ACM Trans. Graphics doi: 10.1145/1276377.1276464 contributor: fullname: Levin – volume: 23 start-page: 664 issue: 3 year: 2004 ident: 10.1016/j.patcog.2011.03.009_bib15 article-title: Digital photography with flash and no-flash image pairs publication-title: ACM Trans. Graphics doi: 10.1145/1015706.1015777 contributor: fullname: Petschnigg – volume: 26 start-page: 67 issue: 3 year: 2007 ident: 10.1016/j.patcog.2011.03.009_bib6 article-title: Active refocusing of images and videos publication-title: ACM Trans. Graphics doi: 10.1145/1276377.1276461 contributor: fullname: Moreno-Noguer – volume: 20 start-page: 699 issue: 7 year: 1998 ident: 10.1016/j.patcog.2011.03.009_bib8 article-title: Local scale control for edge detection and blur estimation publication-title: IEEE Trans. Pattern Anal. Mach. Intell. doi: 10.1109/34.689301 contributor: fullname: Elder |
| SSID | ssj0017142 |
| Score | 2.5456293 |
| Snippet | In this paper, we address the challenging problem of recovering the defocus map from a single image. We present a simple yet effective approach to estimate the... |
| SourceID | proquest crossref elsevier |
| SourceType | Aggregation Database Publisher |
| StartPage | 1852 |
| SubjectTerms | Ambiguity Defocus blur Defocus magnification Defocus map Estimates Gaussian Gaussian gradient Image processing Kernels Pattern recognition Propagation Recovering |
| Title | Defocus map estimation from a single image |
| URI | https://dx.doi.org/10.1016/j.patcog.2011.03.009 https://search.proquest.com/docview/889395183 |
| Volume | 44 |
| hasFullText | 1 |
| inHoldings | 1 |
| isFullTextHit | |
| isPrint | |
| link | http://utb.summon.serialssolutions.com/2.0.0/link/0/eLvHCXMwnV07T8MwED71sbDwRpRH5YEJKTRO0jgZq0JVQHSiUjfLr1RFkES0Xfnt-BIHCSSExJLBkq3k8-Xz2Xf3GeBKZwJlqKRnzcn3oiiQntCMeixmqcp0GA0lRnSfZvF0Hj0shosWjJtaGEyrdNxfc3rF1q5l4NAclKsV1vii7KB90Co_btGGrl2OgqQD3dH943T2FUxgNKpFw0PqYYemgq5K8yot4xVLp-WJaqfpbyvUD66uFqDJPuw6z5GM6pc7gJbJD2GvuZWBuJ_0CK5vTVao7Zq8iZKghkZdnEiwkIQIgmcDr4bY1qU5hvnk7nk89dyNCJ6yW8mN5cxY288wMUq6UCp1IJkOM-VHGgOuaWRMEIjE13YfIqrdjj8UiQoiZdKQShWeQCcvcnMKxLAkSzIRKGmYHQ0DbmmiKRMKb_hmYQ-8BgVe1sIXvMkIe-E1ahxR437ILWo9YA1U_NsEcsvNf_QkDbLc2jYGLERuiu2aJ9aZsh5gEp79e_Bz2KlPgTEr7AI6m_etubRuxEb2oX3zQfvOWD4BerzEVw |
| link.rule.ids | 315,783,787,4509,24128,27936,27937,45597,45691 |
| linkProvider | Elsevier |
| linkToHtml | http://utb.summon.serialssolutions.com/2.0.0/link/0/eLvHCXMwnV07T8MwELZKO8DCG1GeHpiQoiZxGidjVahS-phaqZvl2E5VBElF2__PXeIggYSQWDJYspV8OX8---4-E_KgM4kyVKkD5uQ6QeCnjtTcc3jIY5VpFnRTjOhOpmEyD14W3UWD9OtaGEyrtNxfcXrJ1ralY9HsrFcrrPFF2UF4eGV-3GKPtMAbiGF2tnrDUTL9CiZwL6hEw5nnYIe6gq5M81oD4xVLq-WJaqfxbyvUD64uF6DBMTm0niPtVS93QhomPyVH9a0M1E7SM_L4ZLJC7Tb0Xa4pamhUxYkUC0mopHg28GYotC7NOZkPnmf9xLE3IjgKtpJb4MxQw2eYECVdPC_Vfso1y5QbaAy4xoExvi8jV8M-RJa7HbcrI-UHysTMSxW7IM28yM0loYZHWZRJX6WGw2gYcIsj7XGp8IZvztrEqVEQ60r4QtQZYa-iQk0gasJlAlBrE15DJb79QAHc_EdPWiMrwLYxYCFzU-w2IgJnCjzAiF39e_B7sp_MJmMxHk5H1-SgOhHGDLEb0tx-7MwtuBTb9M6azCc_-MZL |
| openUrl | ctx_ver=Z39.88-2004&ctx_enc=info%3Aofi%2Fenc%3AUTF-8&rfr_id=info%3Asid%2Fsummon.serialssolutions.com&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.atitle=Defocus+map+estimation+from+a+single+image&rft.jtitle=Pattern+recognition&rft.au=Zhuo%2C+Shaojie&rft.au=Sim%2C+Terence&rft.date=2011-09-01&rft.issn=0031-3203&rft.volume=44&rft.issue=9&rft.spage=1852&rft.epage=1858&rft_id=info:doi/10.1016%2Fj.patcog.2011.03.009&rft.externalDBID=n%2Fa&rft.externalDocID=10_1016_j_patcog_2011_03_009 |
| thumbnail_l | http://covers-cdn.summon.serialssolutions.com/index.aspx?isbn=/lc.gif&issn=0031-3203&client=summon |
| thumbnail_m | http://covers-cdn.summon.serialssolutions.com/index.aspx?isbn=/mc.gif&issn=0031-3203&client=summon |
| thumbnail_s | http://covers-cdn.summon.serialssolutions.com/index.aspx?isbn=/sc.gif&issn=0031-3203&client=summon |