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
Dryer
Information processing apparatus, information outputting method and computer program storage device
Liquid crystal display panel
Antibody recognizing turn structure in amyloid .beta.
Controller with screen
Damage resistant antenna
RF/optical shared aperture for high availability wideband communication RF/FSO links
  Randomly Featured Patents
High speed multi focal plane optical system
Water treatment system including foam block
Electrochemical battery having an electrolytically reduced product of a saccharide as the electrode material
Wood cutting shear
Iontophoresis patch/controller interconnection using a conductive elastomer to provide noise-free electrical contact between patch and controller
System and method for enhancement of Ethernet link loss forwarding
Cutlery tray assembly
Foam peeling process and apparatus
Tissue holding devices and methods for making the same
Lamp driving device, backlight assembly and liquid crystal display apparatus having the same