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
Gas flow indicator
Gangable electrical box and leveling assembly
Dynamic association and disassociation of threads to device functions based on requestor identification
Sheet member and method of manufacturing sheet member
Vacuum cleaner
Semiconductor device and manufacturing method
Wake-up radio system
  Randomly Featured Patents
Suspension clamp for clamping a disk drive suspension to an actuator arm
Magnetic head assembly with skewed read/write gap
Multiply substituted anilines, phenols and pyridines-immunomodulating agents
Anti-viral method
Apparatus for assembling parts in a carrier strip
Semiconductor processor liquid spray system with additive blending
Ground-shaping systems for a backhoe bucket
Geographically distributed clusters
Developing device and image forming device having an adjustable developing roll
Retractable roof panel