Data Hiding of Motion Information in Chroma and Luma Samples for Video Compression

Jean-Marc Thiesse (1, 2) , Joël Jung (2) , Marc Antonini (1)

1 Laboratoire d'Informatique, Signaux, et Systèmes de Sophia-Antipolis (I3S) / Equipe IMAGES-CREATIVE
2 Orange Labs [Issy les Moulineaux]

2010 appears to be the launching date for new compression activities intended to challenge the current video compression standard H.264/AVC. Several improvements of this standard are already known like competition-based motion vector prediction. However the targeted 50% bitrate saving for equivalent quality is not yet achieved. In this context, this paper proposes to reduce the signaling information resulting from this vector competition, by using data hiding techniques. As data hiding and video compression traditionally have contradictory goals, a study of data hiding is first performed. Then, an efficient way of using data hiding for video compression is proposed. The main idea is to hide the indices into appropriately selected chroma and luma transform coefficients. To minimize the prediction errors, the modification is performed via a rate-distortion optimization. Objective improvements (up to 2.3% bitrate saving) and subjective assessment of chroma loss are reported and analyzed for several sequences.

Mots clés: Video coding; competition index signalization; chroma and luma sample; data hiding

Domaines: Traitement du signal et de l'image [eess.SP]; Traitement du signal et de l'image [eess.SP]

Jean-Marc Thiesse, Joël Jung, Marc Antonini. Data Hiding of Motion Information in Chroma and Luma Samples for Video Compression. MMSP'10 2010 IEEE International Workshop on Multimedia Signal Processing, Oct 2010, Saint Malo, France. pp.217. ⟨hal-00531816⟩