Invention Grant
- Patent Title: Evaluation of perceptual visual quality
- Patent Title (中): 感知视觉质量评估
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Application No.: US13477727Application Date: 2012-05-22
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Publication No.: US09591304B2Publication Date: 2017-03-07
- Inventor: Jonathan S. Kau , William G. Mears
- Applicant: Jonathan S. Kau , William G. Mears
- Applicant Address: US OR Beaverton
- Assignee: TEKTRONIX, INC.
- Current Assignee: TEKTRONIX, INC.
- Current Assignee Address: US OR Beaverton
- Agent Francis I. Gray; Marger Johnson
- Main IPC: H04N19/00
- IPC: H04N19/00 ; H04N19/48 ; G06T7/00
Abstract:
A method of evaluating perceptual visual quality (PVQ) of compressed video bit streams in the H.262 or H.264 formats without performing block transforms or prediction decodes I-frames within a group of pictures (GOP). DC and AC coefficients are determined for selected macroblocks within a selected one of the I-frames. Based upon the DC and AC coefficients, the PVQ is calculated.
Public/Granted literature
- US20130128993A1 EVALUATION OF PERCEPTUAL VISUAL QUALITY Public/Granted day:2013-05-23
Information query
