46 research outputs found

    Video Stabilization, Camera Motion Pattern Recognition and Motion Tracking Using Spatiotemporal Regularity Flow

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    Abstract-In this paper we propose a different approach based on a spatio-temporal feature called the Spatio Temporal Regularity Flow (SPREF) to stabilize unwanted camera motions in a video, recognize the camera motion patterns between consecutive frames and Group of Frames(GOF) and track the motion of an object in a video with the background subtracted. The method for stabilization based on Camera Motion uses the Translational Regularity flow vectors (TSPREF). In this method we fit the TSPREF vectors into parametric model to calculate the unstabilized global motion. An adaptive Gaussian smoothing method is used to smoothen the global motion followed by motion compensation to produce a stabilized sequence. Experimental results are provided and the stabilization achieved is validated using the qualitative measure Interframe Transform Fidelity (ITF).In camera motion pattern recognition we make use of TSPREF vectors to recognize the cognizant camera motion patterns. This is done for consecutive frames as well as Group of Frames(GOF)of different video sequences. In motion tracking we use the TSPREF vectors to track the moving object present in a video. The test videos taken have a still background with one or two moving objects. In all the cases we have the background subtracted from the moving object

    Development and characterization of large-scale simple sequence repeats in jute

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    Jute is an important crop of the Indian subcontinent and comprises tossa jute (Corchorus olitorius) and white jute (C. capsularis). The yield and fiber quality of this crop remained stagnant for many years and could not be improved through conventional plant breeding. Also, no effort has been made to develop molecular markers on a scale required for marker-assisted selection (MAS) to supplement conventional plant breeding. As a first step toward deploying MAS for jute improvement, 2469 simple sequence repeats (SSRs) were developed in tossa jute (JRO 524) using four SSR-enriched genomic libraries. A random subset of 100 SSRs (25 SSRs from each library) was used to detect polymorphism between the parental genotypes of each of the two recombinant inbred line (RIL) mapping populations. The RILs are being developed from JRO 524 × PPO4 (for fiber fineness) and JRC 321 × CMU 010 (for lignin content) crosses to prepare molecular maps and conduct quantitative trait loci (QTL) analyses. Both SSR length polymorphism and ± polymorphism (null alleles, i.e., presence and absence of specific SSR) were detected; 50 SSRs detected polymorphism between the two genotypes of tossa jute, whereas 45 SSRs detected polymorphism between the two genotypes of white jute. This SSR allelic polymorphism in jute is higher than that reported in other crops and is adequate for construction of genetic maps for QTL analysis. The large-scale SSRs will also prove useful in studying genetic diversity, population structure, and association mapping

    Development of SSR markers and construction of a linkage map in jute

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    Jute is an important natural fibre crop, which is only second to cotton in its importance at the global level. It is mostly grown in Indian subcontinent and has been recently used for the development of genomics resources. We recently initiated a programme to develop simple sequence repeat markers and reported a set of 2469 SSR that were developed using four SSR-enriched libraries (Mir et al. 2009). In this communication, we report an additional set of 607 novel SSR in 393 SSR containing sequences. However, primers could be designed for only 417 potentially useful SSR. Polymorphism survey was carried out for 374 primer pairs using two parental genotypes (JRO 524 and PPO4) of a mapping population developed for fibre fineness; only 66 SSR were polymorphic. Owing to a low level of polymorphism between the parental genotypes and a high degree of segregation distortion in recombinant inbred lines, genotypic data of only 53 polymorphic SSR on the mapping population consisting of 120 RIL could be used for the construction of a linkage map; 36 SSR loci were mapped on six linkage groups that covered a total genetic distance of 784.3 cM. Hopefully, this map will be enriched with more SSR loci in future and will prove useful for identification of quantitative trait loci/genes for molecular breeding involving improvement of fibre fineness and other related traits in jute

    What Women Want: Sappho’s Desires

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    Sappho of Lesbos wrote poems of desire and love, existing today mostly in fragments. Despite the scarcity of Sappho’s work, they reveal that these themes, filtered through weddings song and various mythological allusions, were a way for Sappho to vocalize the common desires that Greek women would have, in turn giving them agency and the courage to pursue these desires in a society that would prohibit them from doing so. Her employment of wedding songs is representative of marriage, women’s most pivotal role in ancient Greek society, and mythology was Sappho’s way to personify the subject of her poem. This paper will analyze several fragments to understand what Sappho wanted from women, in terms of how they behaved in ancient Greek society

    I am Woman, Hear me Roar: Sor Juana and the Importance of the Female Voice

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    Sor Juana was an educated woman living in New Spain in the 1600s, and she wrote poems and plays that expressed her advocation for the presence of the female voice. Specifically, her advocation for the female voice revolved around women's interpretation of the theological doctrine, something the church prohibited. The Response, her most renowned work is a defense against the church of her interpretation of various works, as a defining feature of her writings was how she utilized her extraneous knowledge to supplement her understanding of the divine. This is evident in her composition of The Divine Narcissus, an adaption of the myth, Narcissus and Echo, reimagined as Jesus Christ and the devil. In both of these works, she wields silence as part of her rhetoric to persuade her audience on the importance of the presence of the female voice. This paper will analyze how each work complements one another by the techniques of rhetoric that they both employ

    Why Wait for Twenty Years? Penelope’s Loyalty and Patience

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    This paper analyzes why Penelope was compelled to wait twenty years for Odysseus

    Design and Application of a new Multiscale Multidirectional Non-subsampled Filter Bank

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    We propose a new method for design of computationally efficient nonsubsampled multiscale multidirectional filter bank with perfect reconstruction (PR). This filter bank is composed of two nonsubsampled filter banks, for multiscale decomposition and for directional expansion. For multiscale decomposition, we transform the 1-D equivalent subband filters directly into 2-D equivalent subband filters. The computational cost is considerably reduced by avoiding the computation of 2-D convolutions. The multidirectional decomposition utilizes fan filters. A new method for design of 2-D zero phase FIR fan filter transformation function is developed. This method also aids the transformation of a 1-D filter bank to a 2-D multidirectional filter bank. The potential application of the proposed filter bank is illustrated by comparing the image denoising performance of the proposed filter bank with other design method that exist in available literature

    Recent methane budget estimates from Indian rice paddy fields

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    237-243An estimate of methane (CH4) emission budget from Indian rice paddy fields is presented based on 46 seasonal integrated methane emission data up to 1995 from 20 stations spread all over major rice growing regions representing diverse paddy ecosystems. Total annual CH4 emission from Indian paddies is estimated to be about 4.1 Tg with a range of 2.8 to 5.3 Tg, ignoring the uptake associated with upland regime of paddy cultivation areas. Mitigation of methane emission can best be achieved through proper water management practices involving drainage between various growth ages of paddy crop
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