55 research outputs found

    Road Tracking from High resolution IRS And IKONOS Images Using Unscented Kalman Filtering

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    A typical way to update map is to compare recent satellite images with existing map data, detect new roads and add them as cartographic entities to the road layer. At present image processing and pattern recognition are not robust enough to automate the image interpretation system feasible. For this reason we have to develop an image interpretation system that rely on human guidance. More importantly road maps require final checking by a human due to the legal implementations of error. Our proposed technique is applied to IRS and IKONOS images using Unscented Kalman Filter(UKF) . UKF is used for tracing the median axis of the single road segment. The Extended Kalman Filter (EKF) is probably the most widely used estimation algorithm for road tracking. However, more than 35 years of experience in the estimation community has shown that is difficult to implement and is difficult to tune. To overcome this limitation,UKF is introduced in road tracking which is more accurate, easier to implement, and uses the same order of calculations as linearization. The principles and algorithm of EKF and UKF were also discussed. The core of our system is based on profile matching.UKF traces the roadbeyond obstacles and tries to find the continuation of the road finding all road branches initializing at the road junction.The completeness and correctness of road tracking from the IRS and IKONOS images were also compared

    Platelet Alloantibody Specificities in Multiply Transfused Patients.

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    Transfusion plays an important role in the management of patients with hematological malignancies and disorders. Patients during the induction chemotherapy may need multiple transfusion of platelets and red cells and may develop refractoriness; platelet count increment deteriorate even after adequate dose of platelets are transfused. Although several studies reported non-immunological factors like fever, Splenomegaly, septicemia and severe bleeding are responsible for refractoriness in some patients, no specific reasons can be found. This raises the suspicion of platelet antibodies for the cause of refractoriness. Till now in many studies, the presence of HLA and platelet specific antibodies were found to be between 10%-60%in the patients who were treated with multiple transfusions. Our results concluded that multiple random donor blood and platelet transfusion are able to induce antibodies against HLA class 1 antigens and epitopes on GP iib/iiia. There was no relationship between the number of units transfused and the antibodies formation. Women with single pregnancy history were identified as high responder group for alloimmunization. Our results show AML are frequently immunized than ALL patients. Keeping in view the alloimmunization, leukoreduced irradiated single donor platelets and blood components should be transfused for the treatment of hematological and oncological patients. Till now, non-leukoreduced components are used in most of the centers in India due to cost of leukoreduction. Testing for the presence of platelet antibodies and transfusion of compatible platelets shall be important mode of management and prevention of platelet refractoriness in India

    Cellular immune response to Mycobacterium tuberculosis-speciWc antigen culture Wltrate protein-10 in south India

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    The Mycobacterium tuberculosis (M. tuberculosis)- speciWc culture Wltrate protein-10 (CFP-10) is highly recognized by M. tuberculosis infected subjects. In the present study, the proliferative response and IFN-� secretion was found for C-terminal peptides of the protein (Cfp651–70, Cfp761–80, Cfp871–90, and Cfp981–100). The alleles HLA DRB1 *04 and HLA DRB1 *10 recognized the C-terminal peptides Cfp7, Cfp8, and Cfp9 in HHC. Cfp6 was predominantly recognized by the alleles HLA DRB1 *03 and HLA DRB1 *15 by PTB. The minimal nonameric epitopes from the C-terminal region were CFP-1056–64 and CFP-1076–84. These two peptides deserve attention for inclusion in a vaccine against tuberculosis in this region

    Immune response to Mycobacterium tuberculosis specific antigen ESAT-6 among south Indians

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    The 6-kDa early secreted antigenic target (ESAT-6) is a T-cell antigen recognized by individuals infected with Mycobacterium tuberculosis. The aim of the study was to identify ‘‘protective epitopes’’ of ESAT-6 protein in the south Indian population. Proliferative and Interferon gamma (IFN-g) responses to ESAT-6 peptides were studied by flow cytometry and Enzyme linked immunosorbent assay (ELISA). Healthy household contacts (HHC) recognized Esp1 (10/17) and Esp6 (9/17) peptides. Among pulmonary tuberculosis patients (PTB), Esp1 (3/11) and Esp6 (5/11) were recognized. Maximal response (7/10) was found for Esp1 and Esp8 in treated patients (TR). Median values for the responding subjects gave the following results: Esp1 (76 pg/ml), Esp6 (64 pg/ml), induced IFN-g production in HHC; PTB gave low IFN-g responses for the peptides. TR responded to the peptides Esp1 (141 pg/ml), Esp8 (102 pg/ml). The proliferation of CD4 cells was similar in both PTB and TR for all peptides; but HHC showed an increase for Esp1 (p < 0.05) and Esp6 (p < 0.01). Esp1 (amino acids aa 1–20) and Esp6 (aa 51–70) were the immunogenic peptides recognized by the alleles HLA DRB1*04 and HLA DRB1*10 among HHC. But the association of the alleles with ESAT-6 peptide presentation needs to be confirmed in a large cohort of subjects. We speculate that ESAT-6 can be used along with other immune-eliciting proteins for vaccine design strategies in south Indian population

    Human protein reference database—2006 update

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    Human Protein Reference Database (HPRD) () was developed to serve as a comprehensive collection of protein features, post-translational modifications (PTMs) and protein–protein interactions. Since the original report, this database has increased to >20 000 proteins entries and has become the largest database for literature-derived protein–protein interactions (>30 000) and PTMs (>8000) for human proteins. We have also introduced several new features in HPRD including: (i) protein isoforms, (ii) enhanced search options, (iii) linking of pathway annotations and (iv) integration of a novel browser, GenProt Viewer (), developed by us that allows integration of genomic and proteomic information. With the continued support and active participation by the biomedical community, we expect HPRD to become a unique source of curated information for the human proteome and spur biomedical discoveries based on integration of genomic, transcriptomic and proteomic data

    Analysis of Various Road Pattern Recognition Methods for Satellite Images

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    Abstract--Recently road extraction from satellite imagery has emerged as one of the hot topics in the research field. It is particularly employed in the city planning, cartography and to revise already detected roads in Geographic Information Systems (GIS) environment.. Some of the several applications of road extraction are renewal of GIS database, reference for image registration, assistance for identification algorithms and fast mapping. Road extraction enables the road network to be truly presented in the object space when the image to ground systems transformation is carried out and it has been described as the method of detection and precise localization of roads in the image. Automatic road extraction attempts to simplify and speed up the road extraction process by focusing on automating all or few parts of this process. In photogrammetry and digital image processing fields, road extraction is considered as a challenging issue. In this paper detailed survey has been carried out on various road extraction techniques from satellite images and their performances were analyzed. Keywords-Particle filtering.kalman filtering, road extraction, Neural network and dense cloud points

    Wdrożenie narzędzi „Lean Management” w przemyśle odzieżowym

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    Garment Manufacturing is one of the oldest in the world, compromising a high number of critical operations. The main issues in the garment industry are the lead time, production rate, very poor line balancing and fabric wastes. Productivity improvement is carried out by implementing the various lean tools in the industry, such as 5S, Value Stream Mapping (VSM) and line balancing in the sewing section. After the implementation of lean tools in the garment industry, the outcomes observed are a reduction in work-in-progress inventory, increases in the production process and increased line efficiency. Similarly the before and after implementation of 5S, which shows space utilisation in the sewing section, is increased. In this research, an implementation study was conducted in only one organisation. Hence the results extracted by the conduct of this implementation study are achievable and adaptable in similar organisations.Główne problemy w przemyśle odzieżowym to czas realizacji, tempo produkcji, bardzo niska równowaga linii i marnotrawstwo tkanin. Celem pracy było uzyskanie poprawy produktywności poprzez wdrożenie różnych narzędzi „Lean Management” w branży, takich jak 5S, Mapowanie Strumienia Wartości (VSM) i równoważenie linii w dziale szycia. Po wdrożeniu narzędzi „Lean Management” w przemyśle odzieżowym na podstawie uzyskanych rezultatów zaobserwowano zmniejszenie zapasów w toku prac, zwiększenie procesu produkcji i zwiększenie wydajności linii. Przedstawione w pracy wyniki dotyczą badania wdrożeniowego przeprowadzonego w jednej organizacji. W związku z tym wyniki uzyskane w ramach tego badania są możliwe do osiągnięcia i dostosowania w podobnych organizacjach
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