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Type: Conference paper
Title: Video provenance by motion vector analysis: A feasibility study
Author: Sorell, M.
Citation: Proceedings of the 5th International Symposium on Communications, Control and Signal Processing, ISCCSP 2012, Rome, Italy, 2-4 May 2012; pp.1-4
Publisher: IEEE
Publisher Place: USA
Issue Date: 2012
ISBN: 9781467302760
Conference Name: International Symposium on Communications Control and Signal Processing (5th : 2012 : Rome, Italy)
Statement of
Matthew Sorell
Abstract: Motion vectors are used in digital video compression for the purpose of reducing file size, primarily by providing an estimate of a frame of interest as a motion-offset version of a reference frame or frames. Despite the name, a motion vector is not in and of itself a trace of object motion, but rather an index to a similar image block. The computational complexity of searching for a good motion vector means that many sub-optimal but computationally feasible approaches have been developed. It is conjectured that proprietary approaches to motion estimation lead to a provenance fingerprint. If the approach can be identified, then the identity of the source firmware or software can be inferred. This has further applications in edit and forgery detection. This paper describes the results of an early feasibility study in which the ability to distinguish between six motion vector algorithms is considered.
Keywords: video; provenance; forgery; source identification
Rights: ©2012 IEEE
RMID: 0020121039
DOI: 10.1109/ISCCSP.2012.6217834
Appears in Collections:Electrical and Electronic Engineering publications

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