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How does the accuracy of computer vision algorithms depend on the intensity of the image's gradient? 


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The accuracy of computer vision algorithms depends on the intensity of the image's gradient. When building the objective function, considering the gradients of the image rather than the image itself decreases the influence of illumination and leads to more robust and accurate results . Image registration in the gradient domain, where the image gradients are more stationary than the intensities, also improves accuracy . The gradient-based algorithm is commonly used for sub-pixel registration due to its effectiveness and accuracy . Additionally, using the gradient intensity as a measure of spatial strength can improve the performance of registration tasks and reduce computational complexity . Estimating the gradient direction along which the intensity levels are changing can also enhance the robustness of similarity measures for feature point block matching .

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Papers (4)Insight
Journal ArticleDOI
Sultan Alkaabi, Farzin Deravi 
7 Citations
The provided paper does not directly discuss the accuracy of computer vision algorithms in relation to the intensity of the image's gradient.
Open accessProceedings ArticleDOI
17 Jun 2007
26 Citations
The provided paper does not directly address the accuracy of computer vision algorithms in relation to the intensity of the image's gradient.
The provided paper does not directly address the question about the accuracy of computer vision algorithms and the intensity of the image's gradient. The paper focuses on comparing the performance of iterative gradient-based algorithms with different intensity change models in digital image correlation.
Proceedings ArticleDOI
16 Apr 2015
7 Citations
The provided paper does not directly address the question about the accuracy of computer vision algorithms depending on the intensity of the image's gradient. The paper focuses on proposing a novel method for image registration based on the differential total variation (DTV) in the gradient domain.

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