圖像分割外文翻譯---一種在線圖像編碼識(shí)別系統(tǒng)的設(shè)計(jì)-wenkub
2023-05-19 14:42:43 本頁面
【正文】 ng vertical operator Sx, Sy operator to obtain the level of the coding region of the vertical edges and horizontal edges, that is, the horizontal and vertical directions as shown in Figure 3 using two different volumes product template, get the edge as shown in Figure 4 results. Figure 2 smoothing filter template Figure 3 Sobel edge detection template Figure 4Sobeledgedetection operator Image Rectification Hough transform can detect the coding region of the image angle, the angle of rotation according to the coding region of the image transformation can be corrected. Hough transform to the image space XY of the line (y = px + q) parameter space detection problem is transformed into the midpoint of detection PQ, PQ in the parameter space, the establishment of a cumulative array Sum (p, q), for each given the edge in image space, let p taken over all possible values, according to linear 1 2 1 0 0 0 1 2 1 1 0 1 2 0 2 1 0 1 equation q = xp + y to calculate the corresponding q, on the Sum (p, q) to accumulate, by Sum (p, q) the value of the is the (p, q) point total of the number line, (p, q) is the image space in the value of the slope and intercept, obtained by the slope angle of the edge image coding standard. Character Cutting Coded character area on the level of scanning directly from the character spacing can generally be out of character segmentation. Can also be done by coded character area vertical projection operation, according to the character width and character less the total number of characters to be cut. Figure 5 is a coded character areas and the corresponding vertical projection. Figure 5 encoded characters and the corresponding Figure 6 Schematic diagram of vertical projection linear interpolation Character normalization The character of the segmented into four scans to determine the character boundaries, and then use linear interpolation for each character for normalized so that each character is normalized to 32 16 lattice. Figure 6 Schematic diagram of linear interpolation, according to linear theory, f (x1) by the formula (2) Calculation: )()))(()(()( 002 01021 xfxx xxxfxfxf ?? ??? （ 2） 4 Identification algorithm To determine the general characteristics of character recognition or template matching method, Feature identification is based on the degree of feature extraction stages, plete with a structural analysis approach to character recognition. Template matching that is based on knowledge of the characters take shape matching method according to the template matching is generally divided into two categories: direct use of the imported twodimensional plane images and dictionary matching graphics memory。 ② the template on the coefficient multiplied with the template under the corresponding pixel。 外文原文（復(fù)印件） The Development of A Kind of Online Image Code Recognition System Abstract: This paper describes the design and the implement of online image coding char recognition system. It anal
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