distinctive image features from scale invariant keypoints ppt

... how to extract texture features from noncontrolled environments characterized by distorted images is a still-open task By using a new rotation-invariant and scale-invariant image descriptor based ... doi:10.1155/2008/691924 Research Article Learning How to Extract Rotation-Invariant and Scale-Invariant Features from Texture Images Javier A Montoya-Zegarra, 1, 2 Jo ˜ao Paulo Papa, 2 Neucimar J ... (11) 3.3 Scale-invariant representation Similarly, scale-invariant representation is achieved by find-ing the scale with the highest total energy across the different orientations (dominant scale)

Ngày tải lên: 21/06/2014, 22:20

... Recommended by Alain Tremeau Scale-invariant feature transform (SIFT) transforms a grayscale image into scale-invariant coordinates of local features that are invariant to image scale, rotation, and ... grayscale image into scale-invariant coordinates of local features, which are the keypoints of the image Each keypoint is represented by a 128-dimension vector SIFT con-sists of 4 steps [20]: scale-space ... distinc-tive features from an image It was originally used for object recognition [20,22] and later applied to content-based image retrieval [23] Features extracted by SIFT are invariant to im-age scale,

Ngày tải lên: 22/06/2014, 19:20

... to carry the talk from there but the point being, if you’re a non-fee paid speaker, you don’t necessarily get the co-operation and the interest from the organizer or possibly from your audience ... Trang 1Lessons From the Public Speaking Trang 2Lessons From the Public Speaking Gold Mine “A Revolutionary, Step-By-Step Roadmap ... piece of paper pass them by But 100% of the audience got a copy of that and I learned a lesson from that: It is a good practice to either give something away or sell something because if the

Ngày tải lên: 16/01/2014, 22:20

... the part of the image to be isolated. These include the Rectangular and Elliptical Marquee and Lasso tools. Color selection tools, or those features that distinguish between image parts based ... where 50% or more of the image is selected. Selective Color Menu: Image > Adjustments > Selective Color Shortcut: – See also: – Version: 6.0, 7.0, CS, CS2, CS3 The Image > Adjustment > ... the image. When viewed from a distance, this change makes the picture appear sharper. These Sharpen and Sharpen More fi lters are designed to apply basic sharpening to the whole of the image

Ngày tải lên: 26/01/2014, 09:20

... collected from well V1 M in April 1987 6 Concentrations of chlorinated volatile organic compounds collected from well 1 Depth, hydraulic conductivity, and number of samples collected from each ... oxidation-reduction potential, and total dissolved solids content from the formation water (Seanor and Brannaka 1983) Rust and scale from the monitoring weIJ may interfere with laboratory analyses ... collect representative sam-pIes from the groundwater monitoring weIJs The purpose of this study is to determine the op-timal time for sampling volatile organic compounds from wells finished in fine-grained

Ngày tải lên: 05/03/2014, 21:20

... nationwide release rates for a number of VOCs VOC emissions from both sheds were dominated by alcohols, ethanol from the sheep, methanol from the pigs Ethanol and other fermentation products have ... essentially free from interference from other VOCs when sampling air in the troposphere of rural and urban environments (de Gouw et al., 2003; Warneke et al., 2003) We assumed that the sample air from the ... we have calculated flux values for a number of VOCs from dairy cows in Ger-many (Ngwabie et al., 2007) and this contribution is a fol-low-up from the dairy cow report Alongside the mixing ra-tio

Ngày tải lên: 05/03/2014, 21:20

... OF LIFE AND CUSTOMS FROM THE SIXTEENTH CENTURY BY DR RICHARD VON GARBE RECTOR OF THE UNIVERSITY OF TUBINGEN TRANSLATED FROM THE GERMAN BY LYDIA G ROBINSON Reprinted from "The Monist" ... us sympathetically We sometimes find reproduced a miniature from Delhi which pictures Akbar as seated; in this the characteristic features of the Mongolian race appear softened and refined to ... the fall of the regent She had cared for the Emperor from his birth to his accession and amid the confusion of his youth had guarded him from danger; but for this service she expected her reward

Ngày tải lên: 06/03/2014, 12:20

... businesscycle recoveries from 1880 to the present Figure 1 shows the quarterly path ofGDP from the preceding peak to the trough of each business cycle and then thequarterly path of GDP from the trough ... goodharvests drove the recovery from 1900(I) to 1902(IV), which ended with the ”richman’s panic” of 1902 and a mild recession from 1902 to 1904 The following recov-ery from 1904(II) to 1907(IV) was ... recovery from 1908(II) to1910(I) Friedman and Schwartz attribute this to gold inflows reflecting a decline in US prices relative to those in Britain stemming from crisis A mild recessionfrom 1910

Ngày tải lên: 06/03/2014, 19:20

... 5 D4 desaturases from L major, T brucei and T cruzi group together with D4 and D5 desaturases from fungi, algae and mosses, but form a subgroup with algae desaturases (i.e D4 from Pav lutheri ... the D5 desaturases from fungi As previously reported, the D6 desaturase from cyanobac-teria is also present in this group [18] In contrast, L major D5 desaturase is separated from this cluster; ... group that includes D5 desaturase from Thraustochytrium sp., D4 desaturase from I galbana and the O tauri D6 acyl-CoA desatu-rase [19] Lastly, D6 desaturase from L major was found in another

Ngày tải lên: 07/03/2014, 12:20

... identical, recom-binant CYP151A2 from Mycobacterium sp strain RP1 using a heterologous system with both NADPH-depen-dent ferredoxin reductase and ferredoxin from spinach [17] In most reports ... recombinant proteins appeared larger than expected from their calculated masses, which was similar to findings for the wild-type protein Fdmor isolated from Mycobacterium sp strain HE5 [15] However, ... Fe3S4 cluster, as predicted from the amino acid sequence and UV-Vis spectra [15] Thus, Fdmorcan be classified as a bacter-ial-type ferredoxin, which distinguishes it from the adrenodoxin-type Fe2S2

Ngày tải lên: 07/03/2014, 16:20

... to generate a single English complex tag: a portion of the tag can come from a verb complex transformation, and another from an ad-verbial phrase transformation involving a marked such as while ... alleviate the lack of large scale parallel corpora for the English–Turkish language pair, we experimented with augmenting the training data with reliable phrase pairs obtained from a previous alignment ... proper morphology, in addition to prop-erly ordering the target words Earlier work on translation from English to Turkish (Oflazer and El-Kahlout, 2007; Oflazer, 2008; Durgar-El-Kahlout and Oflazer,

Ngày tải lên: 07/03/2014, 22:20

... R Liptser and B Rozovskii [4] to tracking volatility from prices observed at random times A filtering problem for Ornstein-Ulhenbeck signal from discrete noises was investigated by Y.Zeng and ... we consider the filtering problem for financial volatility that is an Ornstein-Ulhenbeck process from point process observation This problem is investigated for a Markov-Feller process of which ... Trang 1Filtering for stochastic volatility from point processobservation Tidarut Plienpanich1, Tran Hung Thao2,∗ 1School of Mathematics, Suranaree

Ngày tải lên: 14/03/2014, 13:20

... students and colleagues at the Chinese University, who have provided me with support from various dimensions, ranging from mental to technical, throughout these years Their support has made the past ... proxy for ability were questionable * There was a common Chinese saying that “from books you get house full of gold, from books you Trang 20 In 1972, Griliches and Mason also examined the questions ... income was biased or not These investigators used data obtained from war veterans of Post-World World II They reported the result obtained from the AFQT (Armed Forces Qualification Test), instead of

Ngày tải lên: 16/03/2014, 03:20

... can see from Table 2 the US has switched from bilateral funding (from a share of 71 percent in 1983-94 to a share of 42 percent in1995-2002) to funding through NGOs (increasing its share from 69 ... supplements a recipient’s foreign aid from revenues collected from donor nations, then foreign aid at the supranational level would simply crowd out voluntary foreign aid from donors on a dollar-for-dollar ... reproductive health programs (Bulatao, 1998).2 From the year 1996 onwards data have been collected on a more disaggregated level and as one see from Table 1 that the funds generated by OECD/DAC

Ngày tải lên: 22/03/2014, 12:20

... take—for example, from a background in design or animation—you might be like thousands of your peers, still writing your code with the familiar ActionScript 2 Although the move from ActionScript ... conflicting ways As a developer, you have the option of using event handlers left over from ActionScript 1, or new events from ActionScript 2 Some events are placed directly on button or movie-clip symbol ... in ActionScript 3. You will also learn how the architecture changes will affect your transition from ActionScript 2 to ActionScript 3. THIS CHAPTER, ALTHOUGH SHORT, acts as a quick primer for

Ngày tải lên: 28/03/2014, 16:20

... October 2004. Trang 6prices from the YB database from November 1, 1999 to June 30, 2002 for all the companies in the SMPS database using their nine-character bond cusips from FISD The second data ... extract end of day bond prices from TRACE from July 1, 2002 to October 31, 2007 for all the companies in the SMPS database using their nine-character bond cusips from FISD We use the same data ... anonymous referees for their valuable comments and suggestions Our paper has benefited from helpful comments from Cliff Ball, Mark Carey, Sandeep Dahiya, Mark Flannery, Edith Hotchkiss, Craig Lewis,

Ngày tải lên: 29/03/2014, 03:20

... Expression of 15-LO-1 in tumour biopsies from HL and non-Hodgkin (NHL) patients To determine whether H-RS cells also expressed 15-LO-1 in vivo, diagnostic biopsies from HL lymph nodes were stained with ... in biopsies derived from ten patients representing nine different entities of NHL (Table 1) Thus, the expression of 15-LO-1 might be a useful biomarker to distinguish HL from NHL Extensive studies ... acid [13(S)-HODE] were from Biomol Inc (Plymouth Meeting, PA, USA) Cell culture medium RPMI 1640, fetal bovine serum, penicillin, streptomycin and glutamine were obtained from Gibco BRL (Gaithersburg,

Ngày tải lên: 30/03/2014, 04:20

... remove hazardous sub- stances, such as aromatic molecules, from polluted sites. The applicability of these techniques would greatly benefit from the expansion of the cata- bolic ability of these bacteria ... with the C2,3O substrate-binding pocket. The structures of two ECDs, DHBD from Pseudo- monas KKS102 (1eim [34]), and HPCD from Brevibac- terium fuscum (1q0c [35]), crystallized in their active Fe(II) ... 2,3-dihydrox- y-p-cumate-3,4-dioxygenase from P. putida F1, a member of the DHpCD subfamily, was modeled with the substrate bound in the active site using the struc- ture of DHBD from Burkholderia cepacia LB400 (1kmy

Ngày tải lên: 30/03/2014, 10:20

... transfers captions of similar images directly to a query image Farhadi et al (2010) use <object,action,scene> triples predicted from the visual characteristics of the image to find potential ... with a clear blue sky Figure 1: Example image with generated description. formation from a language model, or to be short and simple, but as true to the image as possible Rather than using a fixed ... noun tends to be de-scribed Our approach to describing images starts with a system from Kulkarni et al (2011) that com-poses novel captions for images in the PASCAL sentence data set,2 introduced

Ngày tải lên: 31/03/2014, 21:20

... Keypoints from the reduced resolution image were matched against those from the original image so that the scales for all keypoints would be be present in the matched image. In addition, 1% image ... logarithmic scale. The leftmost point is matching against features from only a single image while the rightmost point is selecting matches from a database of all features from the 112 images. It can ... more sensitive to noise than those of the scale- invariant features, so in practice the affine features have lower repeatability than the scale- invariant features unless the affine distortion is greater...

Ngày tải lên: 13/12/2013, 16:15