Method and system for video quality measurements

A system for measuring a quality of a test video stream, the system comprising:

• means for measuring a content richness fidelity feature of the test video stream based on occurrences of color values in image frames of the test video stream;
• means for measuring a block-fidelity feature of the test video stream based on distortion at block-boundaries in the image frames of the test video stream;
• means for measuring a distortion-invisibility feature of the test video stream based on distortion at pixels of the image frames of the test video stream;
• and
• means for determining a quality rating for the test video stream based on the content richness fidelity feature, the block-fidelity feature and the distortion-invisibility feature measured.

A system for measuring a quality of a test video stream, the system comprising:

• a color processor measuring a content richness fidelity feature of the test video stream based on occurrences of color values in image frames of the test video stream;
• a distortion processor measuring a block-fidelity feature of the test video stream based on distortion at block-boundaries in the image frames of the test video stream and measuring a distortion-invisibility feature of the test video stream based on distortion at pixels of the image frames of the test video stream;
• and
• a quality rating processor determining a quality rating for the test video stream based on the content richness fidelity feature, the block-fidelity feature and the distortion-invisibility feature measured.

A computer readable data storage medium having stored thereon program code means for instructing a computer to execute a method of measuring a quality of a test video stream, the method comprising:

• measuring a content richness fidelity feature of the test video stream based on occurrences of color values in image frames of the test video stream;
• measuring a block-fidelity feature of the test video stream based on distortion at block-boundaries in the image frames of the test video stream;
• measuring a distortion-invisibility feature of the test video stream based on distortion at pixels of the image frames of the test video stream;
• and
• determining a quality rating for the test video stream based on the content richness fidelity feature, the block-fidelity feature and the distortion-invisibility feature measured.