System and apparatus for objective evaluation of image quality of digital image media
AssigneeKANGWON NATIONAL UNIVERSITY University-Industry Cooperation Foundation
InventorChan Ho Han
Life of this patent
Estimating the term…
Abstract
Provided is a video quality assessment system for digital TV. The video quality assessment system includes a video quality test signal insertion device which inserts a test signal for testing video quality into a predetermined area of a transient effect area (TEA) of each frame of a source video and a video quality measurement device which detects the test signal from a predetermined area of the video signal recovered after reception and outputs the test signal. Preferably, an insertion position of the test signal is one line or two or more lines of the TEA area which are located in a lower end portion of the video, and the test signal is configured with multi-bursts including a large number of frequencies which are in a range of DC to ½ of a sampling frequency.
Claims12
A video quality test signal insertion device comprising:
- a test signal generation unit which generates a test signal for testing video quality;
- and
- a signal insertion unit which inserts the test signal into a predetermined area of a transient effect area (TEA) of each frame of a source video,
- wherein the test signal is configured with multi-bursts including a large number of frequencies which are in a range of DC to 1/2 of a sampling frequency.
A video quality measurement device comprising:
- a test signal detection unit which detects a test signal from a predetermined area of a recovered video signal;
- a signal output unit which outputs the test signal, and
- a video quality measurement unit which objectively measures the video quality by using the test signal and provides the video quality,
- wherein the video quality measurement unit is configured to measure an amplitude of each burst from the test signal and output a numeric value of the video quality in a time domain which is obtained by using the amplitude of each burst.
A video quality assessment system for digital TV comprising:
- a video quality test signal insertion device which generates a test signal for testing video quality and inserts the test signal into a predetermined area of a transient effect area (TEA) of each frame of a source video;
- and
- a video quality measurement device which detects the test signal from a predetermined area of video signal recovered after reception and outputs the test signal,
- wherein the test signal is configured with multi-bursts including a large number of frequencies which are in a range of DC to 1/2 of a sampling frequency.
Dependencies are inferred from the claim text.