Apparatus for evaluating quality of video data based on hybrid type and method thereof
AssigneeIndustry-Academic Cooperation Foundation, Yonsei University
InventorChul Hee Lee
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Abstract
The present invention provides an apparatus for evaluating video quality based on a hybrid type which, when bit stream data is received, extracts first evaluation parameters based on the received bit stream data to calculate a preliminary video quality score based on the first extracted evaluation parameters and then extracts second evaluation parameters, and calculates a final video quality score by adjusting the preliminary video quality score based on the second extracted evaluation parameters and methods thereof.
Claims12
An apparatus for evaluating video quality based on a hybrid type, the apparatus comprising a processor and a non-transitory computer readable medium, wherein the processor executes computer program instructions embodied in the non-transitory computer readable medium to perform the steps of:
- when video bit stream data is received, extracting first evaluation parameters from the received video bit stream data;
- calculating a preliminary video quality score using a prediction function which is set in advance using the extracted first evaluation parameters;
- extracting second evaluation parameters from the received video bit stream data;
- and
- calculating a first final video quality score by adjusting the preliminary video quality score using the extracted second evaluation parameters
- wherein the first evaluation parameters comprise a feature value obtained by applying a log function to a bit rate and a feature value obtained by applying a log function to a transmission error rate.
A computer-implemented method for evaluating video quality based on a hybrid type, comprising:
- (a) extracting, when video bit stream data is received, first evaluation parameters which are set in advance based on the received video bit stream data;
- (b) calculating a preliminary video quality score using a prediction function which is set in advance using the extracted first evaluation parameters;
- (c) extracting second evaluation parameters which are set in advance based on the received video bit stream data;
- and
- (d) calculating a first final video quality score by adjusting the preliminary video quality score using the extracted second evaluation parameters,
- wherein the first evaluation parameters comprise a feature value obtained by applying a log function to a bit rate and a feature value obtained by applying a log function to a transmission error rate.
Dependencies are inferred from the claim text.