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Spatio-temporal transform based video hashing (2006)
| Content Provider | CiteSeerX |
|---|---|
| Author | Coskun, Baris Sankur, Bulent Memon, Nasir |
| Abstract | Abstract—Identification and verification of a video clip via its fingerprint find applications in video browsing, database search and security. For this purpose, the video sequence must be collapsed into a short fingerprint using a robust hash function based on signal processing operations. We propose two robust hash algorithms for video based both on the Discrete Cosine Transform (DCT), one on the classical basis set and the other on a novel randomized basis set (RBT). The robustness and randomness properties of the proposed hash functions are investigated in detail. It is found that these hash functions are resistant to signal processing and transmission impairments, and therefore can be instrumental in building database search, broadcast monitoring and watermarking applications for video. The DCT hash is more robust, but lacks security aspect, as it is easy to find different video clips with the same hash value. The RBT based hash, being secret key based, does not allow this and is more secure at the cost of a slight loss in the receiver operating curves. Index Terms—Broadcast monitoring, multimedia content authentication, robust hash, video database indexing, video hash. I. |
| File Format | |
| Journal | IEEE Transactions on Multimedia |
| Language | English |
| Publisher Date | 2006-01-01 |
| Access Restriction | Open |
| Subject Keyword | Spatio-temporal Transform Database Search Hash Function Video Sequence Short Fingerprint Slight Loss Dct Hash Discrete Cosine Transform Video Database Indexing Abstract Identification Video Browsing Watermarking Application Video Hash Signal Processing Operation Fingerprint Find Application Index Term Broadcast Monitoring Robust Hash Algorithm Broadcast Monitoring Hash Value Signal Processing Different Video Clip Video Clip Secret Key Security Aspect Robust Hash Function Novel Randomized Basis Content Authentication Transmission Impairment Robust Hash Randomness Property Classical Basis |
| Content Type | Text |
| Resource Type | Article |
