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
Handbag
Image forming apparatus and image forming method
Detecting mirrors on the web
Systems and methods to provide communication history for communication devices
Wrench
Multi-contoured yoga support
Endotracheal tube
  Randomly Featured Patents
Chemiluminescent substrates for neuraminidase, assays for detection of neuraminidase and kits therefor
Intelligent serial I/O subsystem
Modular afocal variator optical system providing focus with constant magnification
Signal conditioning circuit for trigger probe
Spacer for an electrochemical apparatus
Semiconductor devices including resistor elements comprising a bridge and base elements and related methods
Novel cyclic tetrapeptide
Painting application system
Magnetic flower and process
Method and apparatus for distributing long fibers