edge detection in color images

... possible intensity changes In [14], using numerical optimization, optimal operators are preliminary derived for ridge and roof edges, and then specialized for step edges In [15], the edge detection ... statistical inference problem Other interesting approaches to edge detection, especially for noisy information fusion scenarios, are proposed in [16, 17] In [18], we have proposed a preliminary analytical ... Communications and Networking [17] L Jia and J Xiaojun, Edge detection based on decisionlevel information fusion and its application in hybrid image filtering,” in Proceedings of the International Conference...

Ngày tải lên: 21/06/2014, 17:20

... nodes in the system are running In general terms, the maintenance costs for a cluster with P processing nodes is similar to the maintenance costs for P independent machines However, the maintenance ... (SAD) P-ATDCA (SID) P-RX (Communicative) P-RX (Independent) Imbalance Max Min D Max Min D Max Min D Max Min D Max Min D Max Min D Max Min D Max Min D CPUs 879,06 878,94 1,00013652 191,33 191,32 ... Advances in Signal Processing 11 global void BrightestPixel(short int ∗ d hyper image, float bright matrix, int num bands, long int lines samples) ∗d { // The original hyperspectral image is stored in...

Ngày tải lên: 21/06/2014, 18:20

... lesion detection in retinal images involves five main techniques, namely, thresholding [5, 24, 27, 28, 36, 37], region growing [21], clustering [14], classification [9,10,15,25], and a combination ... map the input pixel green layer intensities to output green layer intensities In order to eliminate artificially induced boundary, input image is divided into 64x64 partially overlapping windows ... create a mapping for this window using histogram equalization technique Interpolate green layer mappings in order to assemble final image For each window Extract four neighboring mapping functions...

Ngày tải lên: 02/10/2015, 12:56

... of an object, a post processing step is required, which is called edge linking The simplest approach of edge linking is to examine the neighboring edge pixels If the edges have similar magnitude ... the input pixel) we superimpose the structuring element on top of the input image so that the origin of the structuring element coincides with the input pixel coordinates If for every pixel in ... then a link can be established between these two edges Generally speaking, edge linking is quite computationally expensive and not very reliable One solution is to make the edge linking semiautomatic...

Ngày tải lên: 05/10/2015, 21:23

... for text detection in video frames Compared with the traditional edge operator, the CED (color edge detector) operates on the overall effect of three channels of Y.I.Q color space Combining with ... blocks are input to train the BP network During the training process, the bootstrap is introduced into our method Bootstrap means that when the output of the BP network is text block that is in fact ... introduced into this process Those non-text blocks that are classified as textblocks falsely are put in the non-text block training set of ANN as the new non-text blocks training samples Finally,...

Ngày tải lên: 05/11/2012, 14:51

Ngày tải lên: 08/12/2013, 12:04

... C Manning 2003 Is it harder to parse chinese, or the chinese treebank? In Proc Annual Meeting of ACL, pages 439–446 A Stolcke 2002 Srilm - an extensible language modeling toolkit In Proc International ... motivation for using DRs instead of the lexical words is to incorporate the part-of-speech (POS) tags information POS tags are helpful in the disambiguation of noun-and-verb homonyms in Chinese Moreover, ... containing at least one keyword in K, can be represented as S = N ∗ (K N ∗ )+ , where K+ means a string of one or more words in K Given a sentence s ∈ S, a partial sentence is formed by keeping...

Ngày tải lên: 20/02/2014, 05:20

... trees In Proceedings of International Conference on New Methods in Language Processing pp 44-49, 1994 Lance A Ramshaw and Mitchell P Marcus Text chunking using transformation-based learning In Proceedings ... others The results of detecting article errors using the new training data, including the new corrected sentences described in Section 4.2, and 7558 sentences that contained artificially made errors ... their root forms, three combinations of these (one preceding word and one following word/two preceding words and one following word/one preceding word and two following words), and the first and...

Ngày tải lên: 20/02/2014, 16:20

... Colorfulness Measuring the brightness using a light meter and a gray card, controlling the exposure using the aperture and shutter speed settings, and darkroom printing with dodging and burning ... example in Fig 2, loneliness is depicted using a man in the frame, increasing its appeal, while the lack of the person makes the photograph uninteresting and is likely to cause poorer ratings from ... choice of features was principled, based on (1) rules of thumb in photography, (2) common intuition, and (3) observed trends in ratings In photography and color psychology, color tones and saturation...

Ngày tải lên: 07/03/2014, 17:20

... want the color of the paper coming through your pencil lines 44 Drawing in Color: Animals Begin by adding pencil lines in the direction that the fur is growing Continue to add pencil lines with ... crisp lines Verithins are good for layering colors without the colors mixing together Prismacolors can give your work a painted appearance; Verithins give your work more of a “drawn” look Prismacolor ... high-gloss shine applied to my Prismacolor drawings It will give the drawing the look of an oil painting and make the colors seem shiny and vivid (Its primary use is to seal oil paintings.) I will...

Ngày tải lên: 10/03/2014, 21:19

... Effect of Training Data Size In order to allow for rapid examination of multiple feature combinations, we restricted the size of the training set (S) to maintain manageable training times With ... identifying semantically inconsistent error words In the future, we plan to continue improving our system by considering smarter trainable combination techniques and by separating the training for ... models were trained on the {S=4000, H=10} training set train is less than dev and train: 63% versus 81%, respectively on {S=4000} 5.5 Preliminary Combination Analysis In a preliminarily investigation...

Ngày tải lên: 17/03/2014, 00:20

... (starred points in Figure 2.) Boldface indicates adaptation results better than baseline; italics indicate worse than baseline train meetings (lex+pros) train meetings (lex only) train meetings (pros ... domainindependent features SCL has generated much interest lately because of the ability to incorporate features not seen in the training data The main idea is to use unlabeled data in both domains ... training set using the guessed labels, then retrain the classifier using the new training set This is repeated for r rounds In order to use prosodic features, which are 121 available only in the...

Ngày tải lên: 17/03/2014, 00:20

... (2009) 212–215 213 into the sensing film In this study, in order to extend the detectable concentration range by improving the sensor response at high NO2 concentration, we investigated the microstructure ... respectively The NO2 sensing properties of the devices were examined at an operating temperature of 200°C in a concentration range of 50 to 1000 ppb in air Measurements were performed using a conventional ... sensor response (S) was defined as the ratio of resistance in air containing NO2 (Rg) to that in dry air (Ra) (S = Rg/Ra) Results and Discursion Figure shows FE-SEM images of the surface for thick...

Ngày tải lên: 20/03/2014, 13:04

Ngày tải lên: 28/03/2014, 15:20

... helpful, they felt very fulfilled and found meaning in their work Living their values, connecting with patients, and finding meaning in their work through making a difference established a cycle which ... international nursing conferences 15 more moments in time : images of exempl ary nursing Ongoing requests for a reprinting or a new edition of the original book ultimately resulted in the publication ... enhance understanding of points made in the book In 1998, Moments in Time was considered cutting edge because there were very few phenomenological nursing studies of exemplary nursing care.‡ ‡ Phenomenology/phenomenological/hermeneutic...

Ngày tải lên: 29/03/2014, 09:20

Ngày tải lên: 29/03/2014, 18:20

... nodes in the group (taking into consideration space constraints on individual nodes) A node moves through phases in this algorithm by transitioning through states in a finite state machine which ... partitioned Thus, in REED, we differentiate between the following types of joins: - Small join tables that fit in the RAM of a single node - Intermediate join tables that exceed the memory of a single node, ... be joined, projecting the resulting schema on one of the tables, sending this smaller version of the table to the node containing the other table and joining at this node, and then sending this...

Ngày tải lên: 30/03/2014, 16:20

... 10(2):180–184 Minqing Hu and Bing Liu 2004a Mining and summarizing customer reviews In KDD’04, pages 168–177 Minqing Hu and Bing Liu 2004b Mining and summarizing customer reviews In Proceedings of the ... Learning Theory, pages 351–363 Springer Jenny Rose Finkel, Trond Grenager, and Christopher Manning 2005 Incorporating non-local information into information extraction systems by gibbs sampling In ... Kobayashi, Kentaro Inui, and Yuji Matsumoto 2007 Extracting aspect-evaluation and aspect-of relations in opinion mining In Proceedings of the 2007 Joint Conference on Empirical Methods in Natural Language...

Ngày tải lên: 30/03/2014, 17:20

... segmenting and labeling sequence data In Proceedings of the International Conference on Machine Learning, pages 282–289 Y Liu, A Stolcke, E Shriberg, and M Harper 2004 Comparing and combining generative ... directly in the Maxent or CRF framework, rather than using a separate prosody model and then binning the resulting posterior probabilities Important ongoing work includes investigating the impact ... Work Finding sentence boundaries in speech transcriptions is important for improving readability and aiding downstream language processing modules In this paper, prosodic and textual knowledge...

Ngày tải lên: 31/03/2014, 03:20

... relation in the predefined order In the HSV color space: conditional ordering based filtering principles: (1) sort the color vectors in W based on v: order from smallest to largest v (2) ordering colors ... fields: graphics arts; HDTV; web; cinema; archiving, involving image/video restoration, colorization, image inpainting II Medical imaging applications: • • • Mostly involves image analysis Challenges ... - MPEG-7 color descriptors: color space; color quantization; dominant colors; scalable color; color layout; color structure; GOF/GOP color; room for more SSIP’08 – Vienna, Austria Color image...

Ngày tải lên: 24/04/2014, 13:36