that the water is not uniformly cloudy, then we can make the passage of light as a lot of cloudy small pieces. If the turbidity of the $i$ block is $\mu_i$, and its length is $\delta x_i$, there are altogether $n$ small pieces, then the light intensity model becomes$\displaystyle{i=i_0 exp\left (–\sum_{i=1}^{n}\mu_i\delta x_i \right)}$If the turbidity of the water in this light is expressed in $\MU (x) $, then the light intensity model becomes$\displaystyle{i=i_0 Exp\left (–\int_l \mu (x) dx \r
from the boundary to the whole shape area, thus can be regarded as the combination of the boundary-based and region-based methods.The circular decomposition method has a strong ability to describe both global and local information, which has the features of translation, rotation, scaling invariance, and good resistance to deformation, occlusion and random noise, but not for distorted object shape recognition and recognition rate is not very good.1.11Radon transformationsThe
1. Prove the theorem of Rado-Nikodym when the measurement is limited by $ \ Sigma $. Proof: Set $ \ Mu, \ nu $ to all non-negative measurements limited by $ \ Sigma $, split $ \ Bex x = \ cup _ {I = 1} ^ \ infty X_ I = \ cup _ {j = 1} ^ \ infty y_j \ EEx $ to make $ $ \ Bex \ Mu (x_ I) 2. Verify that $ C_0 ^ \ infty (d) $ the two inner products above are Inner Product Spaces. Proof: $ \ Bex \ int_d \ sum | f_j | ^ 2 \ RD x = 0 \ LRA f_j
.
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Prerequisites
The general condition is expected to be defined by the derivative of the map-Nikodym, which is sometimes not convenient to use. For example, if $ X and Y $ are two random variables, if event $ \ {x = x \} $ is a zero probability event, but $ x = x $ is known, the expected value $ f (x) = E [Y | x = x] $ is obviously probabilistic, that is, the $ x $ information is given, the e
Note: The main consideration is the method of deep learning, the traditional method is not within the scope of consideration.1. Word Recognition steps1.1detection: Find the area with text (proposal).1.2classification: Identifies the text in the area.2. Text detectionText detection mainly has two lines, two steps and one step.2.1 Two-step method: Faster-rcnn.2.2 One-step: YOLO. The one-step speed is faster than the two-step method, but accuracy has a loss.Text detection is based on the angle of t
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-modules are listed as follows:
submodule name
Main implementation features
io
read, save, and display pictures or videos
data
provide some test pictures and sample data
color
color space transform
filters
image enhancements, edge detection, sorting filters, auto thresholds, etc.
Draw
operates on basic drawing on the NumPy array, including lines, rectang
package is scikit-image scikit (Toolkit for SciPy), which expands the scipy.ndimage and provides more image processing capabilities. It was written by the Python language and developed and maintained by the SCIPY community. The Skimage package consists of many sub-modules, each of which provides different functions. The main sub-modules are listed below:
Sub-module name
Main implementation functions
Io
Read, save, and display pictures or videos
problematic sentences do not, but involved in the code to find no errors.The CSS authoritative guide details the rules and definitions of each of the CSS1.0 attributes, and looks at the many tempting things CSS2.0. is of great significance to the implementation of web standardization. Through the study of this book can understand the browser how to resolve the rules and definitions of attributes, for the accurate realization of design intent to provide protection."HTML and XHTML authoritative g
radon transformations
Morphology
Morphological operations, such as opening and closing operations, skeleton extraction, etc.
Exposure
Image intensity adjustment, such as brightness adjustment, histogram equalization, etc.
Feature
Feature detection and extraction, etc.
Measure
Measurement of image properties, such as similarity or contours
Segmentation
Image segmentation
the measurement matrix) is NP-complete, it just can't be solved with the above algorithm. )
Since compression sensing is still a fairly new area (especially with rigorous mathematical results), it is still too early to expect this technology to be applied to practical sensors. However, there has been a proof-of-concept model, the most notable of which is the single-pixel camera developed by Rice University.
Finally, it must be mentioned that the compression sensing technology is an abstract
interest point detector." Computer VISION–ECCV 2008:650-663.Klaser, A. and M. Marszalek (2008). "A Spatio-temporal descriptor based on 3d-gradients."Mikolajczyk, K. and C. Schmid (2004). "Scale affine invariant interest point detectors." International Journal of Computer Vision (1): 63-86.Scovanner, P., S. Ali, et al. (2007). A 3-dimensional SIFT descriptor and its application to action recognition, ACM.. Wang, H., M. M. Ullah, et al. (2009). "Evaluation of local spatio-temporal features for a
language and developed and maintained by the SCIPY community. The Skimage package consists of many sub-modules, each of which provides different functions. The main sub-modules are listed as follows:
Sub-module name
Main implementation functions
Io
Read, save, and display pictures or videos
Data
Provide some test pictures and sample data
Color
Color Space Transformation
Filters
Image enhancem
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