In the field of facial reconstruction, collaboration between Aboriginal communities and non-Abori... more In the field of facial reconstruction, collaboration between Aboriginal communities and non-Aboriginal scholars, for the purpose of creating culturally-appropriate research, is nonexistent. This project is groundbreaking in that it will be the first time that such groups will create a partnership for research among people of diverse backgrounds who have shared concerns about Aboriginal issues. Also, this project allows Aboriginal peoples to have a voice in the decision making process, but, more importantly, to guide the project - to provide community input so that the research output is a better reflection of their individual and cultural needs. This paper details the steps undertaken by the authors and the community members to establish a partnership for generating much needed population-specific tissue depth data.
Journal of Forensic Sciences - J FORENSIC SCI, 2006
This study utilizes geographic information systems (GIS) and spatial analysis (SA) technology to ... more This study utilizes geographic information systems (GIS) and spatial analysis (SA) technology to address the problems associated with prediction of location and effective recovery of dumped and scattered human remains in Louisiana. The goals are to determine if a selective bias exists in Louisiana as to where and when human remains are dumped and to assess whether or not geographically specific patterns exist in the dispersal of human remains. We hypothesized that a positive relationship exists between postmortem interval (PMI) and dispersal distance, and that there are negative relationships between PMI and dispersal direction and between dispersal direction and distance. Our results indicate that, in Louisiana, remains are more often dumped in rural areas away from a structure, and are found within 1 4 mile of the nearest road. For Louisiana, no seasonal bias was found in the analysis of when remains are dumped. Furthermore, with the exception of the relationship between PMI and the shortest distance remains were dispersed, no geographically specific patterns were detected in the analyses of dispersal distance, dispersal direction, and PMI.
This study examines the Global Positioning System (GPS) as a tool for field mapping of scattered ... more This study examines the Global Positioning System (GPS) as a tool for field mapping of scattered human remains or other materials in forensic investigations. Two aspects of the GPS are considered: (1) the level of accuracy that can be obtained using a mid-priced GPS unit, and (2) the effectiveness of using the GPS to map scattered materials. The positional accuracy of the GPS receiver was tested using a National Geodetic Survey (NGS) point located in Baton Rouge, LA. The utility of the GPS for mapping was investigated by setting up a mock field recovery and mapping the remains using both the GPS and traditional archeological methods. The results indicate that the positional error for a single location using GPS was less than one-half meter. However, when multiple positions were considered, the data produced on different days were not consistent. Further, the GPS receiver used in this study could not distinguish items in close association. Factors such as tree cover density, the proximity of the materials to structures or trees, and satellite positioning contributed to the erratic data. These results indicate that traditional techniques and photographs are still indispensable for mapping scattered remains or artifacts.
We develop a completion pipeline for fragmented and damaged skulls. The goal of this work is to c... more We develop a completion pipeline for fragmented and damaged skulls. The goal of this work is to convert scanned incomplete skull fragments to a complete skull model for subsequent forensic or archeological tasks such as facial reconstruction. The proposed assembly and completion algorithms can also be used to repair other fragmented objects with inherent symmetry. A two-step assembly framework is proposed: (1) rough assembly by an ICP-like template matching algorithm integrated with the slippage features and spin-image descriptors; (2) assembly refinement by a global optimization on least square transformation error (LSTE) of break-curves. The assembled skull is finally repaired by a symmetry-based completion algorithm. Experiments on repairing scanned skull fragments demonstrate the efficacy and robustness of this framework.
In October of 1997 Allen R. Saltus, Jr., MA, RPA, Southeastern Louisiana University, Hammond, La.... more In October of 1997 Allen R. Saltus, Jr., MA, RPA, Southeastern Louisiana University, Hammond, La., and Mary Manhiem, MA, Louisiana State University, Baton Rouge, La., agreed to conduct an archaeological survey of a proposed tourist railroad route through the Centenary State Commemorative Area as part of their respective classes. They were assisted by archaeologists James A. Green and Ann Ballard Green. This report represents that endeavor and presents the survey, environment, prehistory, history, previous investigations, methods, results, and recommendations.
In the field of facial reconstruction, collaboration between Aboriginal communities and non-Abori... more In the field of facial reconstruction, collaboration between Aboriginal communities and non-Aboriginal scholars, for the purpose of creating culturally-appropriate research, is nonexistent. This project is groundbreaking in that it will be the first time that such groups will create a partnership for research among people of diverse backgrounds who have shared concerns about Aboriginal issues. Also, this project allows Aboriginal peoples to have a voice in the decision making process, but, more importantly, to guide the project - to provide community input so that the research output is a better reflection of their individual and cultural needs. This paper details the steps undertaken by the authors and the community members to establish a partnership for generating much needed population-specific tissue depth data.
Journal of Forensic Sciences - J FORENSIC SCI, 2006
This study utilizes geographic information systems (GIS) and spatial analysis (SA) technology to ... more This study utilizes geographic information systems (GIS) and spatial analysis (SA) technology to address the problems associated with prediction of location and effective recovery of dumped and scattered human remains in Louisiana. The goals are to determine if a selective bias exists in Louisiana as to where and when human remains are dumped and to assess whether or not geographically specific patterns exist in the dispersal of human remains. We hypothesized that a positive relationship exists between postmortem interval (PMI) and dispersal distance, and that there are negative relationships between PMI and dispersal direction and between dispersal direction and distance. Our results indicate that, in Louisiana, remains are more often dumped in rural areas away from a structure, and are found within 1 4 mile of the nearest road. For Louisiana, no seasonal bias was found in the analysis of when remains are dumped. Furthermore, with the exception of the relationship between PMI and the shortest distance remains were dispersed, no geographically specific patterns were detected in the analyses of dispersal distance, dispersal direction, and PMI.
This study examines the Global Positioning System (GPS) as a tool for field mapping of scattered ... more This study examines the Global Positioning System (GPS) as a tool for field mapping of scattered human remains or other materials in forensic investigations. Two aspects of the GPS are considered: (1) the level of accuracy that can be obtained using a mid-priced GPS unit, and (2) the effectiveness of using the GPS to map scattered materials. The positional accuracy of the GPS receiver was tested using a National Geodetic Survey (NGS) point located in Baton Rouge, LA. The utility of the GPS for mapping was investigated by setting up a mock field recovery and mapping the remains using both the GPS and traditional archeological methods. The results indicate that the positional error for a single location using GPS was less than one-half meter. However, when multiple positions were considered, the data produced on different days were not consistent. Further, the GPS receiver used in this study could not distinguish items in close association. Factors such as tree cover density, the proximity of the materials to structures or trees, and satellite positioning contributed to the erratic data. These results indicate that traditional techniques and photographs are still indispensable for mapping scattered remains or artifacts.
We develop a completion pipeline for fragmented and damaged skulls. The goal of this work is to c... more We develop a completion pipeline for fragmented and damaged skulls. The goal of this work is to convert scanned incomplete skull fragments to a complete skull model for subsequent forensic or archeological tasks such as facial reconstruction. The proposed assembly and completion algorithms can also be used to repair other fragmented objects with inherent symmetry. A two-step assembly framework is proposed: (1) rough assembly by an ICP-like template matching algorithm integrated with the slippage features and spin-image descriptors; (2) assembly refinement by a global optimization on least square transformation error (LSTE) of break-curves. The assembled skull is finally repaired by a symmetry-based completion algorithm. Experiments on repairing scanned skull fragments demonstrate the efficacy and robustness of this framework.
In October of 1997 Allen R. Saltus, Jr., MA, RPA, Southeastern Louisiana University, Hammond, La.... more In October of 1997 Allen R. Saltus, Jr., MA, RPA, Southeastern Louisiana University, Hammond, La., and Mary Manhiem, MA, Louisiana State University, Baton Rouge, La., agreed to conduct an archaeological survey of a proposed tourist railroad route through the Centenary State Commemorative Area as part of their respective classes. They were assisted by archaeologists James A. Green and Ann Ballard Green. This report represents that endeavor and presents the survey, environment, prehistory, history, previous investigations, methods, results, and recommendations.
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