Download e-book for iPad: 3-D Model Recognition from Stereoscopic Cues by John E. W. Mayhew, John P. Frisby

By John E. W. Mayhew, John P. Frisby

ISBN-10: 0849323088

ISBN-13: 9780849323089

3D version popularity from Stereoscopic Cues ЕСТЕСТВЕННЫЕ НАУКИ, ПРОГРАММИНГ 3D version reputation from Stereoscopic Cues (Artificial Intelligence Series)ByJohn E.W. Mayhew, John P. FrisbyPublisher:MIT Press1991 286 PagesISBN: 0262132435PDF61 MB3D version acceptance from Stereoscopic Cues offers a wealthy, built-in account of labor performed inside of a large-scale, multisite, Alvey-funded collaborative venture in laptop imaginative and prescient. It offers quite a few equipment for deriving floor descriptions from stereoscopic facts and for matching these descriptions to third-dimensional types for the needs of item attractiveness, imaginative and prescient verification, self sustaining motor vehicle assistance, and robotic computer suggestions. cutting-edge imaginative and prescient platforms are defined in enough aspect to permit researchers to copy the implications. sharingmatrix importing eighty five 1 2 three four five

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Additional info for 3-D Model Recognition from Stereoscopic Cues

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We cannot restore the intermediary values without using the approximation at this scale and the wavelet coefficients at smaller scales. Since the multiresolution analysis is based on scaling functions without cutoff frequency, the application of the Shannon interpolation theorem is not possible. The interpolation of the wavelet coefficients can only be carried out after reconstruction and shift. This has no importance for a signal coding which does not modify the data, but the situation is not the same in a strategy in which we want to analyze or restore an image.

Initialize the multiresolution coefficients at each scale j , wj, to 0. 2 Using the Pyramidal Multi-Median Transform, determine the set of transform coefficients, wj1. 3 w / < _ w / + w/<. 4 Reconstruct image fi+\ from wj (using the interpolation algorithm described in the previous section). 5 Determine the image component which is still not reconstructible from the wavelet coefficients: / l + i <— / — / l + i . 6 Set i <— i + 1, and return to step 2. The number of iterations is governed by when fi+\ in step 5 approaches a null image.

The image itself, to which this kernel is applied, becomes smaller. While this algorithm aids computationally, the reconstruction formula (eqn. 83) above) is no longer valid. Instead we use the following algorithm based on 5-spline interpolation: 1 Take the lowest scale image, cp. 2 Interpolate cp to determine the next resolution image (of twice the dimensionality in x and y). Call the interpolated image cp. 3 Calculate cv-\ <— c'p + wp. 4 Set p <— p - 1. Go to step 2 if p > 0. This reconstruction procedure takes account of the pyramidal sequence of images containing the multiresolution coefficients, w ;.

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3-D Model Recognition from Stereoscopic Cues by John E. W. Mayhew, John P. Frisby


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