Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Method and system for human vision model guided medical image quality assessment










Image Number 2 for United States Patent #8086007.

A method and system for image quality assessment is disclosed. The image quality assessment method is a no-reference method for objectively assessing the quality of medical images. This method is guided by the human vision model in order to accurately reflect human perception. A region of interest (ROI) of medical image is divided into non-overlapping blocks of equal size. Each of the blocks is categorized as a smooth block, a texture block, or an edge block. A perceptual sharpness measure, which is weighted by local contrast, is calculated for each of the edge blocks. A perceptual noise level measure, which is weighted by background luminance, is calculated for each of the smooth blocks. A sharpness quality index is determined based on the perceptual sharpness measures of all of the edge blocks, and a noise level quality index is determined based on the perceptual noise level measures of all of the smooth blocks. An overall image quality index can be determined by using task specific machine learning of samples of annotated images. The image quality assessment method can be used in applications, such as video/image compression and storage in healthcare and homeland security, and band-width limited wireless communication.








 
 
  Recently Added Patents
System, method and apparatus for pausing multi-channel broadcasts
Image processing device, image processing method, and program
Polarization-coupled ferroelectric unipolar junction memory and energy storage device
Semiconductor device
Multi-room user interface
Anomalous data detection method
Liquid crystal display and method of driving the same
  Randomly Featured Patents
Soybean variety 94B24
Differential having improved torque capacity and torque density
Fold-out playsets with pop-up structures
Edge molding with retainer strip for an overhead door
Salts of ACTH-peptides and processes for their manufacture
Reciprocating drive apparatus for automatic molding removing machine
Method and system for providing pre-approved targeted products
Apparatus for synthesizing speech sounds of a short message in a hands free kit for a mobile phone
Electrocardiograph
Fault detection and isolation system