tai lieu co so van hoa vn

... án. Kiểm so? ?t mã nguồn của Team System cho khả năng tin cậy và khả năng mở rộng hơn Visual SourceSafe, hệ thống kiểm so? ?t mã nguồn hiện hành có trong Visual Studio, mặc dù vậy Visual SourceSafe ... thêm thông tin chi tiết). Các khả năng của Team System gồm có: - Kiểm so? ?t mã nguồn: Team System cung cấp một hệ thống kiểm so? ?t mã nguồn mới, hệ thống này cho phép các chuyên gia phát triển có ... được quy định bởi tất cả các ngôn ngữ lập trình của Microsoft gần đây và công cụ cho các chuyên gia phát triển phần mềm. Mặc dù vậy, Microsoft liên tục hỗ trợ cho nhiều ngôn ngữ, những hệ thống

Ngày tải lên: 20/12/2013, 21:16

... dạng tiếng nói Feature Extraction Decoding Acoustic Model Pronunciation Model Language Model Speech Signals Word Sequence Network Construction Speech DB Text Corpora HMM Estimation G2P LM Estimation ... International Research Center MICA Multimedia, Information, Communication & Applications UMI 2954 Hanoi University of Technology 1 Dai Co Viet - Hanoi - Vietnam Cơ sở dữ liệu audio Le Thi Lan ... Mel-Frequency Cepstrum Coefficients (MFCC)  Kích thước của cửa sổ : 25ms / Tốc độ : 10ms Preemphasis/ Hamming Window FFT (Fast Fourier Transform) Mel-scale filter bank log|.| DCT (Discrete Cosine Transform)

Ngày tải lên: 24/12/2013, 18:15

... Information, Communication & Applications UMI 2954 Hanoi University of Technology 1 Dai Co Viet - Hanoi - Vietnam Cơ sở dữ liệu video Le Thi Lan MICA MICA 2010 2  htttk5@gmail.com  Tổng

Ngày tải lên: 24/12/2013, 18:15

... personal computer. Inexpensive color printers can produce good quality reproductions of digital photographs. Digital images are also easy to share and disseminate: they can be posted on personal ... scenario: complex professional scanners have been developed that have very good color fidelity and depth (42-bit color or more) as well as high resolution. These scanners can capture the finest details, ... snapshots and combining them digitally. Image- processing techniques exist to compensate for atmospheric turbulence and for inaccuracies in telescope movement. Solid-state devices are also the detectors

Ngày tải lên: 21/01/2014, 18:20

... been considered only a subbranch of consoli- dated disciplines such as pattern recognition, computer vision, and even artificial intelligence, in which interaction with a user plays a secondary ... hierarchical organiza- tion of concepts and categories associated with visual content; use of simple but highly discriminant visual features, such as color, so as to reduce the computa- tional requirements ... this level, the user’s interest is concentrated on the basic perceptual features of visual content (dominant colors, color distributions, texture patterns, relevant edges and 2D shapes, and uniform

Ngày tải lên: 21/01/2014, 18:20

... global coverage of the Earth, whereas high-resolution images are used for occasional and detailedcoverage of selected areas. Remotely sensed images must be radiometrically and geometrically corrected to ... animals in the forest are adversely affected by isolation of previously contiguous habitats. Contiguous areas of less than 100 km 2 are considered isolated. Greater exposure to winds and predators ... A passive sensor measures emitted and/or reflected radiance values from the Earth without an active source of radiation in the sensor. The source of illumination with passive sensors is usually

Ngày tải lên: 21/01/2014, 18:20

... area network using digital imaging and communications in medicine (DICOM) protocols and transmission control protocol/Internet protocol (TCP/IP). During the consultation, information is exchanged ... reports. 4.2.2 An Application Scenario: Teleconsultation Consolidation of health care resources and streamlining of services has motivated the development of communication technologies to support the ... Doppler ultrasound, diagnostic images are acquired and displayed in gray scale. Hence issues pertaining to color, such as the choice of color space, do not arise for medical images. Color images

Ngày tải lên: 21/01/2014, 18:20

... 13.5 ft of the tool contain the power supply, computer hardware, and telemetry equipment needed to support the sensor. As hostile environmental conditions exist in the well, all components of the logging ... thereby allowing the geosteering activity to be controlled in near real time. 5.2.3 Core Images A core is a cylindrical sample of rock collected from a well. Conventionally, when a well is drilled, the ... rock. To retrieve a 114 IMAGES IN THE EXPLORATION FOR OIL AND GAS consolidated section of core, a coring tool is required. A coring tool is essentially a hollow pipe that cuts out a cylinder

Ngày tải lên: 21/01/2014, 18:20

... storage-space constraints. 6.1.2.1 From Images to Multiresolution Imagery. The placement technique becomes more challenging if the imagery is encoded using a multiresolution encoding algorithm. ... Parity encoding, on the other hand, reduces the overhead consider- ably by employing error-correcting codes. For instance, in a RAID level five disk array, consisting of D disks, parity computed ... of 63 coefficients (referred to as the AC coefficients) capture the details within the 8 × 8 pixel block. The DC coefficients of successive blocks are difference-encoded independent of the AC coefficients.

Ngày tải lên: 21/01/2014, 18:20

... implementors write their own code to pack records into pages, maintain links between pages, handle physical consistency as well as concurrency control for the access method and so on. This makes access ... A query is represented as a collection of objects and each object consists of a collection of feature descriptors. In either case, each component of a query is associated with a weight indicating its ... a query tree correspond to two different color representations — color histogram and color moments. Although histogram intersection [18] may be used to evaluate the similarity between the color histogram

Ngày tải lên: 21/01/2014, 18:20

... image. 8.2.3 Entropy Coding Techniques Entropy coding techniques, also known as noiseless coding, lossless coding, or data compaction coding, are variable-rate coding techniques that provide compression ... images, which can be single component (e.g., gray scale) or multiple component (e.g., three-component color or higher- component remote sensing data). Each component can be considered to be an “image” ... information. Compression can be performed in one of the two regimes: lossless compression and lossy compression. Lossless compression permits an exact recovery of the original signal and permits compression

Ngày tải lên: 21/01/2014, 18:20

... that lossless compression can reduce the size of a digital image by a factor of 2 or 3. The cost of transmitting compressed images has three components: the cost of compression, the cost of decompression, ... However, the first two costs increase with the achieved compression ratio: when comparing two image-compression algorithms, one usually finds that the one that compresses better complex is more 1 . ... Additionally, the computational costs of compressing and decompressing are quite often similar (although asymmetric schemes exist where compression is much more expensive than decompression). In

Ngày tải lên: 21/01/2014, 18:20

... SQRT(COMM) -6 .32455532 6.32455532 6.32455532 Ví dụ hàm SIGN(n) SELECT SAL-NVL(COMM,0), SIGN(SAL-NVL(COMM,0)), NVL(COMM,0)-SAL, SIGN(NVL(COMM,0)-SAL) FROM EMP WHERE DEPTNO =30 SAL-NVL(COMM,0)SIGN(SAL-NVL(COMM,0))NVL(COMM,0)-SAL ... |view_name [(column1 [, ,columnN])] |ON stored_procedure TO account [, ,accountN] Trong đó: - ALL: là từ khoá được sử dụng khi muốn cấp phát tất cả các quyền cho người sử dụng - Account: là ... như sau: Dạng 1: Cấp quyền đối với câu lệnh SQL GRANT... LOWER( 'SQL -sql course sql course sql course sql course Ví dụ hàm UPPER(char) SELECT ENAME FROM EMP WHERE ENAME = UPPER(‘Smith’);

Ngày tải lên: 24/01/2014, 01:20

... to RGB [16]. Color Quantization. Color quantization is used to reduce the color resolution of an image. Using a quantized color map can considerably decrease the computa- tional complexity during ... according to the local color distribution [30] and then compute the simi- larity on the basis of each region’s dominant colors, which are extracted by applying color quantization. Some other commonly ... selected color-quantization scheme. 264 INTRODUCTION TO CONTENT-BASED IMAGE RETRIEVAL 10.2.1 Feature Extraction 10.2.1.1 Color. Color is one of the most recognizable elements of image content

Ngày tải lên: 26/01/2014, 15:20

... produce a collection of colors that is also compact and complete. Recognizing the effectiveness of the HSV color space for content- based query-by-color, the MPEG-7 has adopted HSV as one of the color ... generate natural or uniform color spaces. The Munsell color order system was desined to be natural, compact, and complete. The Munsell color order rotational system organizes the colors according to natural ... to accommodate targeted display devices: YIQ— NTSC color television, YUV — PAL and SECAM color television, and YCrCb— color computer display. Because none of the color spaces is uniform, color

Ngày tải lên: 26/01/2014, 15:20

... dimensions of coarseness, contrast, directionality, line- likeness, regularity, and roughness. 12.3.2.1 Coarseness. Coarseness corresponds to the “scale” or image resolu- tion. Consider two aerial ... properties. 12.3.2.2 Contrast. Contrast measures the amount of local intensity variation present in an image. Contrast also refers to the overall picture quality — a high- contrast picture is often considered ... emerged is the co- occurrence matrix. Co- occurrence matrices [19, 22–26] are based on second-order statistics of pairs of intensity values of pixels in an image. A co- occurrence matrix counts how

Ngày tải lên: 26/01/2014, 15:20

... represented as a combination of primitives selected from a collection; for each combination, two quantities are computed: the fitting error, and the encoding cost. The encoding cost (expressed ... the aspects captured, it is not possible to compare different descriptors outside the context of very specific applications. Shape comparison is also a very difficult problem. It is well established that ... obtained. Finally, the coordinates of the interest points are converted through a normalized affine-invariant transformation [96]. 13.4.3 Composition of Parts Versus Deformation Shape can also

Ngày tải lên: 26/01/2014, 15:20

... structures. Conclusions and future directions are in Section 14.6. The Appendix contains a description of numerous methods introduced in Section 14.4. The bibliography that concludes the chapter also contains ... the query and then use the record rank as the score. The last record, which is the one that best satisfies the query, has the highest score. Scoring functions are commonly normalized between zero ... specific metrics that solve the problem accurately. When images or portions of images are represented, by a collection of d features x[1], ,x[d] (containing texture, shape, color descriptors, or combi- nations

Ngày tải lên: 26/01/2014, 15:20

... photographic archives [10], digital libraries [11,12] containing ASCII text, bitmaps, gray scale, and color images. • DNA databases [13] containing large collections of long strings (hundred or thousand ... voice or music, video clips, and so on. A typical query-by-content is “in a collection of color photographs, find ones with the same color distribution as a sample sunset photograph.” Specific ... they cannot be similar. The converse is not true, which is exactly the reason we may have false alarms. Numbers that contain some information about a sequence (or a multimedia object, in general),

Ngày tải lên: 26/01/2014, 15:20