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Privacy Preserving Human Fall Recognition Using Human Skeleton Data

Privacy Preserving Human Fall Recognition Using Human Skelet...

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2023 IEEE Conference on Computer Applications, ICCA 2023

作者： Htoo, Chit Kyin Sein, Myint Myint University of Computer Studies GIS and Image Processing Lab Yangon Myanmar

ISBN: (纸本)9781665435994

Fall is a critical danger for a person because he/she can loss any recontroled and stable posture and can face to any associated injuries without any caregiver. Therefore, automatic fall recognition systems have been developed to assist the person falling in short time in place. Moreover, these human-fall recognition systems have also strongly impacted from privacy and the issue of privacy is a challenge and an important societal problem for it. The aim of this paper is to propose an automatic fall recognition from human skeleton joints captured by RGB-Depth Kinect camera supporting a privacy-preservation. The recognition assesses skeleton joints of a person and measures two posture balance (body orientation and centroid height) and two gait motions (velocity and angular acceleration) of this person based on the fall and fall-like representations generated in system's virtual environment. The system has not de-identified the personal information from original captures of a person and preserves privacy which is highly impacted in fall recognition systems. Experiments on system's collected human activities using Support Vector Machine learning classification, will support to detect falls in unseen real environments with moderately high recognition accuracy. © 2023 IEEE.

关键词： Musculoskeletal system

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Privacy Preserving Human Fall Recognition Using Human Skeleton Data

Privacy Preserving Human Fall Recognition Using Human Skelet...

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Computer Applications (ICCA), IEEE Conference on

作者： Chit Kyin Htoo Myint Myint Sein GIS and Image Processing Lab University of Computer Studies Yangon Myanmar

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The Spafleximp Project: Spanish Flex-S3 Mission Calibration and Validation Plan Implementation

The Spafleximp Project: Spanish Flex-S3 Mission Calibration ...

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IEEE International Symposium on Geoscience and Remote Sensing (IGARSS)

作者： Pedro J. Gómez-Giráldez Marcos Jiménez Ma Pilar Cendrero-Mateo Shari Van Wittenberghe Juan José Peón Adrián Moncholí-Estornell Jesús Delegido Jose F. Moreno Ricardo Díaz-Delgado Remote Sensing & GIS Lab. Doñana Biological Station (LAST-EBD) CSIC Sevilla Spain National Institute of Aerospace Technology (INTA) Madrid Spain Laboratory for Earth Observation Image Processing Laboratory University of Valencia Paterna Spain

ISBN: (数字)9798350360325

ISBN: (纸本)9798350360332

The European Space Agency's FLuorescence EXplorer-Sentinel 3 (ESA FLEX-S3) mission, scheduled for launch in 2026, aims to remotely detect vegetation fluorescence at 300x300-meter pixel resolution. The ESA requires a national Calibration and Validation (Cal/Val) plan for FLEX-S3 products that addresses the selection of test sites, measurement protocols, and uncertainty budgets. Despite Spain's significant Cal/Val test sites, it lacks a permanent instrumented site in international networks. The SpaFLEXImp initiative aims to implement a FLEX Cal/Val plan, standardizing protocols, and establishing a coordinated network of sites. Led by the National Institute of Aerospace Technology (INTA), the project involves the University of Valencia and the Doñana Biological Station-CSIC. With a long experience in in situ, airborne, and spaceborne measurements, the teams will conduct specific Cal/Val campaigns in 3 sites, making Spain a European and international reference for terrestrial Cal/Val activities.

关键词： Protocols Uncertainty Instruments European Space Agency Ecosystems Europe Vegetation mapping

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Improving Pasture Mapping and Monitoring in Support of Net Zero Deforestation in Brazil

Improving Pasture Mapping and Monitoring in Support of Net Z...

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IEEE International Symposium on Geoscience and Remote Sensing (IGARSS)

作者： V. V. Mesquita N. M. Teles W. L. Da Silva L. Parente B. S. de Oliveira L. G. Ferreira Image Processing GIS Lab (Lapig) Federal University of Goiás (UFG) Goiânia-GO Brazil School of Veterinary and Animal Science (EVZ) Federal University of Goiás (UFG) Goiânia-GO Brazil OpenGeoHub Foundation Wageningen Netherlands

Pasturelands are vital for the environment, economy, and society globally. In Brazil, they cover approximately 18.72% of the country's total area, with the state of Mato Grosso being a significant agricultural region. Mato Grosso has the largest cultivated area and cattle herd in Brazil, encompassing three biomes: Amazon, Cerrado, and Pantanal. The distribution, dynamics, and quality of pastures in Mato Grosso are crucial for the country's food supply chain and present a challenge for the Brazilian government due to deforestation and land degradation. Using machine learning, cloud computing, and Landsat 8 satellite imagery, this work produced a consistent time-series of pasture maps from 2015 to 2021. The methodology involved modifications to the MapBiomas initiative, resulting in improved accuracy. Further research will focus on refining pasture quality assessment and correlating it with property size, land-use changes, and environmental considerations to support decisionmaking.

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PHENOLOGY AND ITS RELATION TO PRECIPITATION IN THE BRAZILIAN SAVANNA

PHENOLOGY AND ITS RELATION TO PRECIPITATION IN THE BRAZILIAN...

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IEEE International Geoscience and Remote Sensing Symposium

作者： Arielle Elias Arantes Laerte G. Ferreira Manuel E. Ferreira Federal University of Goias Image Processing and GIS Lab

ISBN: (纸本)9781479979301

Vegetation phenology is influenced by the photoperiod, precipitation, soil, air temperature and solar illumination, and as such varies greatly along geographic gradients, vegetation types and climatic zones. In this work, focused in the Brazilian savanna, we analyzed the phenology of the main physiognomies and its relation to precipitation. Along the 13 years of analysis (2000 to 2012). As our results showed, the time lag between precipitation and vegetation response was of about one month at both the beginning and end of the growing season. A clear dependence on time lag extension and ENSO phenomenon was also observed. During El Nino years the start of the wet season occurred earlier in August and the duration of the growing season was longer. As opposed, La Nina events tend to cause a later start of the season and shorter growing seasons.

关键词： Precipitation Phenology Growing Season Wet Season

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GLOBAL LAND COVER MAPS FOR MONITORING THE REGIONAL HUMAN INDUCED CHANGES: A COMPARATIVE STUDY IN THE BRAZILIAN SAVANNA

GLOBAL LAND COVER MAPS FOR MONITORING THE REGIONAL HUMAN IND...

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IEEE International Geoscience and Remote Sensing Symposium

作者： Manuel Eduardo Ferreira Jovenita Silva dos Santos Federal University of Goiás Image Processing and GIS Lab (LAPIG - www.lapig.iesa.ufg.br) Goiania Goiás 74001-970 Brazil -

ISBN: (纸本)9781479911127

This study compared the three main global land cover/land use databases with the official map for the Cerrado biome (PROBIO, year 2002, 1:250,000 semi-detailed scale, based on Landsat 5 - TM), aiming to measure how different and complementary they are. Our results indicated Global Land Cover 2000 map (from SPOT-IV/Vegetation imagery) as the most similar to PROBIO, especially in terms of anthropic classes. The GlobCover 2009 map (from ENVISAT/MERIS imagery) also presented a good similarity to PROBIO, including the visual aspects. Finally, the MOD12Q1 map (from TERRA/MODIS imagery) presented the lower similarity in relation to PROBIO, with the smallest area of land use (21%). Despite the differences in methodology and scale, the GLC-2000 and GlobCover 2009 maps are very close to the current landscape in the Cerrado region, reinforcing their application for monitoring this large biome in South American, with ample and unrestricted use by decision-makers.

关键词： Global maps Cerrado PROBIO global maps cerrado maps Land use land cover imagery (Psychotherapy) images MAPPING(MATHEMATICAL) Land Biome

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BURNINGS IN THE BRAZILIAN SAVANNA: A PRELIMINARY ANALYSIS ON KEY BIOPHYSICAL DRIVERS USING MODIS AND TRMM DATA

BURNINGS IN THE BRAZILIAN SAVANNA: A PRELIMINARY ANALYSIS ON...

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IEEE International Geoscience and Remote Sensing Symposium

作者： Arielle E. Arantes Laerte G. Ferreira Fernando M. Araujo Federal University of Goias Image Processing and GIS Lab

ISBN: (纸本)9781467311601

Fire is an important agent affecting the climate system and ecosystem dynamics. Thus, in this study we attempted to understand the characteristics and biophysical context of both the burned and unburned areas in the Cerrado biome, in 2010, using the MCD45A1 burned area product. For each burned (>10 km~2) and unburned polygon, and considering the PROBIO remnant vegetation map, accumulated mean ET (MOD16), EVI (MOD13), and PPT (TRMM) data were obtained. On average, the burned sites showed smaller ET, EVI, and PPT values, a clear indication that the fire affected areas were subject to more severe droughts, prior to the major burning season (mid-September/October). In order to understand and map the severity of droughts, our results indicate the need for multi-temporal and seasonal analysis, as well as the use of EVI as a potential proxy to water stress.

关键词： Burned Areas Cerrado MCD45A1 MODIS biophyisical variables

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WATER FLUXES IN THE CENTRAL BRAZILIAN SAVANNA: SEASONAL PATTERNS AND LAND COVER INTERDEPENDENCIES AS OBSERVED FROM GRACE, TRMM, AND MODIS DATA

WATER FLUXES IN THE CENTRAL BRAZILIAN SAVANNA: SEASONAL PATT...

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IEEE International Geoscience and Remote Sensing Symposium

作者： Laerte G. Ferreira Srinivas Bettadpur Michael T. Coe Marcos H. Costa Federal University of Goias Image Processing and GIS Lab UT-Austin Center for Space Research Woods Hole Research Center Federal University of Vicosa Biosphere-Atmosphere Interaction Group

ISBN: (纸本)9781467311601

In this study, data from GRACE, TRMM, and MODIS were used to assess the 2010 seasonal water fluxes in the three major basins of the Brazilian savanna biome. As our results suggest, at each basin, the annual cycle of increase and depletion in water storage, somewhat related to the dominant land-cover patterns, is an important driver behind the biophysical responses of the total and remnant vegetative covers.

关键词： GRACE MOD13 TRMM Cerrado biome Land conversion Water fluxes Moderate Resolution Imaging Spectroradiometer Fluxes Land Water storage Arsenic basins Basins

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A protocol for expedite and effective retrieval of land conversion information in savanna environments

A protocol for expedite and effective retrieval of land conv...

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IEEE International Symposium on Geoscience and Remote Sensing (IGARSS)

作者： Manuel Eduardo Ferreira Laerte Guimarães Ferreira Nilson Clementino Ferreira Mercedes Bustamante Jean Ometto Federal University of Goiás Image Processing and GIS Lab Brazil University of Brasilia Ecology Department Brazil Brazilian Space Research Institute (INPE) Brazil Brazilian Space Research Institute (INPE)

The production of land use and land conversion maps has become a priority information for public policies actions and environmental monitoring. In Brazil, the elaboration of these maps (with moderate scale/resolution) has been driven by the need to evaluate human occupation dynamics, principally in the Amazon and savanna (or Cerrado) biomes. In order to enable a more precise and systematic monitoring for the savanna region (which will support, for example, the deforestation, economic and greenhouse gases expansion models), this study aims to present a basic protocol for mapping this biome (in three thematic classes: Remnant vegetation, Converted areas and Burned areas), taking into consideration computational time, budget issues, as well as accuracy and precision of the area mapped (including error estimates). Our results suggest the possibility to produce low cost expedite maps for the entire Cerrado, with a global accuracy above 80% (in some scenes near to 100%), especially for both the Remnant vegetation and Converted areas.

关键词： Remote sensing Satellites Earth Protocols Monitoring Accuracy Spatial resolution

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High resolution remote sensing based quantification of the remnant vegetation cover in the Araguaia river basin, central Brazil

High resolution remote sensing based quantification of the r...

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2008 IEEE International Geoscience and Remote Sensing Symposium - Proceedings

作者： Ferreira, Manuel E. Ferreira, Laerte G. Latrubesse, Edgardo M. Miziara, Fausto Federal University of Goiás Doctorate Program on Environmental Science Image Processing and GIS Lab - LAPIG Campus II Cx. Postal 131 CEP 74001-970 Goiânia - GO Brazil

ISBN: (纸本)9781424428083

The Araguaia/Tocantins watershed, with 380,000 km2 drainage basin towards the north portion of Brazil, is one of the major fluvial and phyto-physiognomic system in South America. Its headwaters are situated in the southern portion of the Brazilian savannas (locally known as Cerrado biome), considered one of the world's biodiversity hotspot. Based on 2006 high spatial resolution CCD imagery (20m) of the CBERS II satellite, in this study we mapped the land cover of the high and middle Araguaia basin (120,000 km2). Our results indicate that only 38.5% of the basin are still preserved, while the others 61.5% present some kind of environmental disturbance. In relation to the riparian vegetation, approximately 44% of the area (directly under the influence of hydrograph network) are already unprotected. This information, currently supporting the Araguaia basin hydrological modelling, certainly will be instrumental for the long term conservation of this unique fluvial ecosystem. © 2008 IEEE.

关键词： Catchments

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