Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/45046
DC FieldValueLanguage
dc.contributor.authorLópez, S.en_US
dc.contributor.authorCallicó, G. M.en_US
dc.contributor.authorLópez, J. F.en_US
dc.contributor.authorSarmiento, R.en_US
dc.contributor.otherLopez, Jose-
dc.contributor.otherLopez, Sebastian-
dc.contributor.otherCallico, Gustavo Marrero-
dc.date.accessioned2018-11-22T06:51:27Z-
dc.date.available2018-11-22T06:51:27Z-
dc.date.issued2005en_US
dc.identifier.isbn0-8194-5832-5en_US
dc.identifier.issn0277-786Xen_US
dc.identifier.urihttp://hdl.handle.net/10553/45046-
dc.description.abstractOptimum visual and hearing qualities at high compression ratios as well as reduced area/power dissipation are key factors for actual and future commercial mobile multimedia devices. In this sense, a real time Smart Pixels Array designed to perform efficiently key video coding operations is presented in this paper. In particular, the array introduced is capable to perform the Discrete Wavelet Transform (DWT), Zerotree Entropy (ZTE) Coding and Frame Differencing (FD) over SQCIF images (128×96 pixels) by dividing them into wavelet blocks (8×8 pixels). In order to perform these tasks, the array has been designed as a bidimensional network of interconnected smart pixel processors working in a massively parallel fashion, allowing the operation at very low clock frequencies and hence, low power dissipation. Each of these smart pixels is composed by a photodetector, an analog-digital converter in order to obtain a digital representation of the light intensity received by the photodetector and a Ferroelectric Liquid Crystal placed over the whole surface of the pixel to display the image. Additionally, each pixel has a dedicated circuitry associated which performs all the specific computations related with the three video coding operations previously mentioned, exhibiting a power dissipation of 4.15 μW@128 kHz and a square area of 110×110 μm2 using a 0.25 μm CMOS technology. The array has been integrated into a mobile multimedia device prototype, fully designed at our research centre, capable to send and receive compressed audio and video information with a total power consumption of 1.36 W in an area of 351.5 mm2.en_US
dc.languageengen_US
dc.relation.ispartofProceedings of SPIE - The International Society for Optical Engineeringen_US
dc.sourceProceedings of SPIE - The International Society for Optical Engineering[ISSN 0277-786X],v. 5837 PART II (70), p. 638-649en_US
dc.subject3307 Tecnología electrónicaen_US
dc.subject.otherImage compressionen_US
dc.subject.otherImage codingen_US
dc.subject.otherDigital image storageen_US
dc.titleA low-cost bidimensional smart pixel network for video coding operationsen_US
dc.typeinfo:eu-repo/semantics/conferenceObjectes
dc.typeConferenceObjectes
dc.relation.conferenceConference on VLSI Circuits and Systems II
dc.relation.conferenceVLSI Circuits and Systems II
dc.identifier.doi10.1117/12.608263
dc.identifier.scopus28344450306-
dc.identifier.isi000231723000065-
dcterms.isPartOfVLSI Circuits and Systems II, Pts 1 and 2
dcterms.sourceVLSI Circuits and Systems II, Pts 1 and 2[ISSN 0277-786X],v. 5837, p. 638-649
dc.contributor.authorscopusid57187722000-
dc.contributor.authorscopusid56006321500-
dc.contributor.authorscopusid7404444793-
dc.contributor.authorscopusid35609452100-
dc.description.lastpage649-
dc.identifier.issue70-
dc.description.firstpage638-
dc.relation.volume5837 PART II-
dc.investigacionIngeniería y Arquitecturaen_US
dc.type2Actas de congresosen_US
dc.identifier.wosWOS:000231723000065-
dc.contributor.daisngid465777-
dc.contributor.daisngid506422-
dc.contributor.daisngid846472-
dc.contributor.daisngid116294-
dc.identifier.investigatorRIDL-6046-2014-
dc.identifier.investigatorRIDL-8108-2014-
dc.identifier.investigatorRIDL-6036-2014-
dc.utils.revisionen_US
dc.contributor.wosstandardWOS:Lopez, S
dc.contributor.wosstandardWOS:Callico, GM
dc.contributor.wosstandardWOS:Lopez, JF
dc.contributor.wosstandardWOS:Sarmiento, R
dc.date.coverdateDiciembre 2005
dc.identifier.conferenceidevents120464
dc.identifier.ulpgces
item.grantfulltextnone-
item.fulltextSin texto completo-
crisitem.author.deptIUMA Sistemas de Información y Comunicaciones-
crisitem.author.deptIU de Microelectrónica Aplicada-
crisitem.author.deptDepartamento de Ingeniería Electrónica y Automática-
crisitem.author.deptIUMA Sistemas de Información y Comunicaciones-
crisitem.author.deptIU de Microelectrónica Aplicada-
crisitem.author.deptDepartamento de Ingeniería Electrónica y Automática-
crisitem.author.deptIUMA Sistemas de Información y Comunicaciones-
crisitem.author.deptIU de Microelectrónica Aplicada-
crisitem.author.deptDepartamento de Ingeniería Electrónica y Automática-
crisitem.author.deptIUMA Sistemas de Información y Comunicaciones-
crisitem.author.deptIU de Microelectrónica Aplicada-
crisitem.author.deptDepartamento de Ingeniería Electrónica y Automática-
crisitem.author.orcid0000-0002-2360-6721-
crisitem.author.orcid0000-0002-3784-5504-
crisitem.author.orcid0000-0002-2360-6721-
crisitem.author.orcid0000-0002-4843-0507-
crisitem.author.parentorgIU de Microelectrónica Aplicada-
crisitem.author.parentorgIU de Microelectrónica Aplicada-
crisitem.author.parentorgIU de Microelectrónica Aplicada-
crisitem.author.parentorgIU de Microelectrónica Aplicada-
crisitem.author.fullNameLópez Suárez, Sebastián-
crisitem.author.fullNameMarrero Callicó, Gustavo Iván-
crisitem.author.fullNameLópez Suárez, Sebastián-
crisitem.author.fullNameSarmiento Rodríguez, Roberto-
crisitem.event.eventsstartdate09-05-2005-
crisitem.event.eventsstartdate09-05-2005-
crisitem.event.eventsenddate11-05-2005-
crisitem.event.eventsenddate11-05-2005-
Appears in Collections:Actas de congresos
Show simple item record

Page view(s)

43
checked on Apr 11, 2021

Google ScholarTM

Check

Altmetric


Share



Export metadata



Items in accedaCRIS are protected by copyright, with all rights reserved, unless otherwise indicated.