Blind Deconvolution Clause Samples

Blind Deconvolution. The Jacobian of the reduced cost functional for blind deconvolution can also be computed using the chain rule in the following way: ∂ [ A( P(y) ) x ] Jϕ = ∂ [ A( P(y) ) x ] ∂ [ P(y) ] ∂ [ P(y) ] = A(X) · where x = vec(X), i.e. x is the vector obtained by stacking columns of matrix
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Blind Deconvolution. Another example of a separable nonlinear least squares problem (3.1) arises in image deblurring, when the blurring operator is not known exactly. This problem is often referred to as blind deconvolution in the image processing literature [18, 71, 76, 120, 130]. It is assumed that the observed image b is data measured by an imaging device (such as a camera, telescope, micro- scope, or medical imaging scanner), and A(y) is an operator that models how the image is captured. If the true parameters y true were available, the problem reduces to the linear image deblurring problem discussed in Chap- ter 2. However, realistically the vector y is obtained through a calibration process, for example, by collecting images of known objects. Thus, it is only an approximation of the true parameters y true. Matrix A(y) models the blurring operation and can be written as A(y) = A(P(y)) , where P(y) is a PSF. In many applications the blur is assumed to be spa- tially invariant, which means P(y) is an image of a point source object and A(P(y)) is structured. The precise structure depends on the imposed bound- ary conditions, but it is usually a combination of Toeplitz and ▇▇▇▇▇▇ ma- trices; see [69] for more details. 1
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Related to Blind Deconvolution

  • Program Management 1.1.01 Implement and operate an Immunization Program as a Responsible Entity 1.1.02 Identify at least one individual to act as the program contact in the following areas: 1. Immunization Program Manager;

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  • Access Toll Connecting Trunk Group Architecture 9.2.1 If WCS chooses to subtend a Verizon access Tandem, WCS’s NPA/NXX must be assigned by WCS to subtend the same Verizon access Tandem that a Verizon NPA/NXX serving the same Rate Center Area subtends as identified in the LERG. 9.2.2 WCS shall establish Access Toll Connecting Trunks pursuant to applicable access Tariffs by which it will provide Switched Exchange Access Services to Interexchange Carriers to enable such Interexchange Carriers to originate and terminate traffic to and from WCS’s Customers. 9.2.3 The Access Toll Connecting Trunks shall be two-way trunks. Such trunks shall connect the End Office WCS utilizes to provide Telephone Exchange Service and Switched Exchange Access to its Customers in a given LATA to the access Tandem(s) Verizon utilizes to provide Exchange Access in such LATA. 9.2.4 Access Toll Connecting Trunks shall be used solely for the transmission and routing of Exchange Access to allow WCS’s Customers to connect to or be connected to the interexchange trunks of any Interexchange Carrier which is connected to a Verizon access Tandem.