| 1. Identity statement | |
| Reference Type | Conference Paper (Conference Proceedings) |
| Site | sibgrapi.sid.inpe.br |
| Holder Code | ibi 8JMKD3MGPEW34M/46T9EHH |
| Identifier | 8JMKD3MGPBW4/35THUHP |
| Repository | sid.inpe.br/sibgrapi@80/2009/08.26.16.11 |
| Last Update | 2009:08.26.16.11.51 (UTC) administrator |
| Metadata Repository | sid.inpe.br/sibgrapi@80/2009/08.26.16.11.52 |
| Metadata Last Update | 2022:07.30.18.33.29 (UTC) administrator |
| DOI | 10.1109/SIBGRAPI.2009.17 |
| Citation Key | LopesOlivAlmeAraú:2009:SpFrBa |
| Title | Spatio-Temporal Frames in a Bag-of-visual-features Approach for Human Actions Recognition  |
| Format | Printed, On-line. |
| Year | 2009 |
| Access Date | 2024, Apr. 29 |
| Number of Files | 1 |
| Size | 1083 KiB |
| 2. Context | |
| Author | 1 Lopes, Ana Paula Brandão 2 Oliveira, Rodrigo Silva 3 Almeida, Jussara Marques de 4 Araújo, Arnaldo de Albuquerque |
| Affiliation | 1 Federal University of Minas Gerais/State University of Santa Cruz 2 Federal University of Minas Gerais 3 Federal University of Minas Gerais 4 Federal University of Minas Gerais |
| Editor | Nonato, Luis Gustavo Scharcanski, Jacob |
| e-Mail Address | paula@dcc.ufmg.br |
| Conference Name | Brazilian Symposium on Computer Graphics and Image Processing, 22 (SIBGRAPI) |
| Conference Location | Rio de Janeiro, RJ, Brazil |
| Date | 11-14 Oct. 2009 |
| Publisher | IEEE Computer Society |
| Publisher City | Los Alamitos |
| Book Title | Proceedings |
| Tertiary Type | Full Paper |
| History (UTC) | 2010-08-28 20:03:28 :: paula@dcc.ufmg.br -> administrator :: 2022-07-30 18:33:29 :: administrator -> :: 2009 |
| 3. Content and structure | |
| Is the master or a copy? | is the master |
| Content Stage | completed |
| Transferable | 1 |
| Version Type | finaldraft |
| Keywords | Human Actions Bag-of-Visual-Features Video classification |
| Abstract | The recognition of human actions from videos has several interesting and important applications, and a vast amount of different approaches has been proposed for this task in different settings. Such approaches can be broadly categorized in model-based and model-free. Typically, model-based approaches work only in very constrained settings, and because of that, a number of model-free approaches appeared in the last years. Among them, those based in bag-of-visual-features (BoVF) have been proving to be the most consistently successful, being used by several independent authors. For videos to be represented by BoVFs, though, an important issue that arises is how to represent dynamic information. Most existing proposals consider the video as a spatio-temporal volume and then describe volumetric patches around 3D interest points. In this work, we propose to build a BoVF representation for videos by collecting 2D interest points directly. The basic idea is to gather such points not only from the traditional frames (xy planes), but also from those planes along the time axis, which we call the spatio-temporal frames. Our assumption is that such features are able to capture dynamic information from the videos, and are therefore well-suited to recognize human actions from them, without the need of 3D extensions for the descriptors. In our experiments, this approach achieved state-of-the-art recognition rates on a well-known human actions database, even when compared to more sophisticated schemes. |
| Arrangement 1 | urlib.net > SDLA > Fonds > SIBGRAPI 2009 > Spatio-Temporal Frames in... |
| Arrangement 2 | urlib.net > SDLA > Fonds > Full Index > Spatio-Temporal Frames in... |
| doc Directory Content | access |
| source Directory Content | there are no files |
| agreement Directory Content | there are no files |
| 4. Conditions of access and use | |
| data URL | http://urlib.net/ibi/8JMKD3MGPBW4/35THUHP |
| zipped data URL | http://urlib.net/zip/8JMKD3MGPBW4/35THUHP |
| Language | en |
| Target File | sibgrapi-actions-2009-FINAL-5-no-bookmarks.pdf |
| User Group | paula@dcc.ufmg.br |
| Visibility | shown |
| 5. Allied materials | |
| Mirror Repository | sid.inpe.br/banon/2001/03.30.15.38.24 |
| Next Higher Units | 8JMKD3MGPEW34M/46SJQ2S 8JMKD3MGPEW34M/4742MCS |
| Citing Item List | sid.inpe.br/sibgrapi/2022/05.14.19.43 3 |
| Host Collection | sid.inpe.br/banon/2001/03.30.15.38 |
| 6. Notes | |
| Empty Fields | archivingpolicy archivist area callnumber contenttype copyholder copyright creatorhistory descriptionlevel dissemination documentstage edition electronicmailaddress group isbn issn label lineage mark nextedition notes numberofvolumes orcid organization pages parameterlist parentrepositories previousedition previouslowerunit progress project readergroup readpermission resumeid rightsholder schedulinginformation secondarydate secondarykey secondarymark secondarytype serieseditor session shorttitle sponsor subject tertiarymark type url volume |