The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 07, 2012
Filed:
Feb. 29, 2008
Praveen Kumar Tiwari, Uttar Pradesh, IN;
Abhishek Kumar Tiwary, Uttar Pradesh, IN;
Anuj Verma, New Delhi, IN;
Manik Gupta, New Delhi, IN;
Prabhanjana Kumar Nallani, Andhra Pradesh, IN;
Praveen Kumar Tiwari, Uttar Pradesh, IN;
Abhishek Kumar Tiwary, Uttar Pradesh, IN;
Anuj Verma, New Delhi, IN;
Manik Gupta, New Delhi, IN;
Prabhanjana Kumar Nallani, Andhra Pradesh, IN;
Interra Systems Inc., San Jose, CA (US);
Abstract
A method and system for detecting and quantifying blockiness in a video file is disclosed. The video file is a file that has been decompressed by using standard DCT algorithms. The method includes segmenting each frame of the video file into multiple blocks. The method also involves comparing the intensity gradients of each block with one or more threshold values. The one or more threshold values represent predefined intensity variation characteristics. Further, the method includes determining the intensity variation parameters of each block, based on the comparison. Thereafter, a blockiness index is calculated for each block, after which a blockiness value is calculated for each frame. Finally, a blockiness level is assigned to each frame, based on its blockiness value. The blockiness level is a comparative measure of the blockiness of a frame that represents the blockiness content in the frame.