摘要:
A method and system for applying and reading a fractal image to and from a plurality of objects to act as an identification label is provided. The system includes a printer for printing a fractal pattern to the plurality of objects and a reader for reading the printed fractal pattern. Such a fractal image is robust to printing and imaging difficulties and inconsistencies, and is difficult to copy, thus defending against counterfeiting.
摘要:
A method for automatically generating a three-dimensional (3D) video of a scene by measuring and registering 3D coordinates at a first position and a second position of a 3D measuring device, the 3D video generated by combining two-dimensional images extracted at trajectory points along a trajectory path.
摘要:
Example systems and methods of generating an indicator of osteoarthritis (OA) progression are described. Fractal dimension curves are generated for horizontal and vertical trabecular components associated with a region of interest of a joint image. A statistical model is used to model shapes of the fractal dimension curves and a predictor of OA progression is calculated based on shape parameters of the statistical model.
摘要:
The invention relates to a fully automated screening, diagnosis and classification technique for Alzheimer's disease using magnetic resonance imaging signals from the ventricular zone contour of the brain to get a fundamental index of brain deterioration comprising the steps: —obtaining a gray scale MRI image of the brain region; —applying a contour edge-detecting algorithm to the image; —employing a grid covering method for calculating a first order metric index of ventricular zone contour; —superimposing metric square grids of increasing edge length to the binary contour image and counting the metric grid squares; —plotting the logs of metric grid squares against the logs of edge lengths, wherein the gradient of the plot is the linear topological metric index.
摘要:
An endoscope image is obtained by imaging a subject with a scope. Then, an edge portion of the endoscope image is extracted and a complexity degree of the edge portion is detected. Thereafter, a determination is made as to whether the endoscope image is an image obtained through near view imaging or distant view imaging according to the complexity degree and an imaging condition is changed according to the determined near view imaging or distant view imaging.
摘要:
The invention relates to a fully automated screening, diagnosis and classification technique for Alzheimer's disease using magnetic resonance imaging signals from the ventricular zone contour of the brain to get a fundamental index of brain deterioration comprising the steps: —obtaining a gray scale MRI image of the brain region; —applying a contour edge-detecting algorithm to the image; —employing a grid covering method for calculating a first order metric index of ventricular zone contour; —superimposing metric square grids of increasing edge length to the binary contour image and counting the metric grid squares; —plotting the logs of metric grid squares against the logs of edge lengths, wherein the gradient of the plot is the linear topological metric index.
摘要:
An image corresponding to image data obtained by imaging by a camera is divided into a plurality of image pieces and each of the image pieces is subjected to a color analysis process, a fractal dimension analysis process, and an artificial object amount recognition process. According to a combination of the results obtained by the three processes, a part of a landscape contained in each of the image pieces is classified and the entire characteristic of the landscape contained in the image is judged according to the classification result.
摘要:
A method for recognizing an object in an image is disclosed wherein a fractal map of the image is generated by estimating the fractal dimension of each pixel in the image. The fractal map may be segmented by thresholding and locations of candidate objects are determined. The pixel value of the image pixel corresponding to the same location where the candidate object is found in the fractal map may be compared to a threshold value. If the pixel value is greater than the threshold value, the candidate object is recognized as a valid object.
摘要:
A method and system for applying and reading a fractal image to and from a plurality of objects to act as an identification label is provided. The system includes a printer for printing a fractal pattern to the plurality of objects and a reader for reading the printed fractal pattern. Such a fractal image is robust to printing and imaging difficulties and inconsistencies, and is difficult to copy, thus defending against counterfeiting.
摘要:
The present invention provides, among other things, methods of identifying cancerous or pre-cancerous tissue including providing a first region of tissue from a subject, calculating a roughness exponent for the first region of tissue, and comparing the roughness exponent of the first region of tissue to 0.5, wherein a difference of less than 0.2 between the roughness exponent of the first region of tissue and 0.5 indicates that the tissue is cancerous or pre-cancerous. Additionally, the present invention provides methods including providing a first view of a region of tissue, providing a second view of a region of tissue, calculating a first fractal dimension for the first view of the region of tissue, and calculating a second fractal dimension for the second view of the region of tissue, wherein if the fractal dimension of at least one of the first fractal dimension and the second fractal dimension is in the fractal zone, the region of tissue is considered cancerous. Also provided are systems for performing these assessments.