Video coding techniques minimize spatial and temporal redundancies inherent in video sequences based on non-overlapping block-based image partitioning. Due to depending on the information from already encoded neighboring blocks, these algorithms lack efficient techniques to exploit the overall global redundancies. Compared to the traditional block-based coding, the cuboid coding (2D) framework has been proven to be a more effective method of image compression that exploits global redundancy by considering homogeneous pixel correlation within a frame. In this paper, we improved the idea of 2D cuboid coding to exploit both local and global redundancy from a video sequence by adopting a three-dimensional (3D) cuboid partitioning scheme for SHVC compression improvement of 360-degree videos. The proposed method considers a group of successive frames as a 3D cuboid and recursively partitions it into sub-3D cuboids where static information over a selected GOP share the same cuboid and moving regions share new cuboids with better-defined objects. All the 3D cuboids are then encoded to create a coarse representation of the video stream. Experiments indicate that the proposed framework significantly outperforms its relevant benchmarks, notably by 17.18% (average) in BD-Rate reduction and 0.82 dB in BD-PSNR gain with respect to the standard SHVC codec.
|Title of host publication||2022 IEEE International Conference on Image Processing|
|Subtitle of host publication||Proceedings|
|Number of pages||5|
|Publication status||E-pub ahead of print - 18 Oct 2022|
|Event||29th IEEE International Conference on Image Processing, ICIP 2022 - Palais 2 l'Atlantique, Bordeaux, France|
Duration: 16 Oct 2022 → 19 Oct 2022
https://2022.ieeeicip.org/ (Conference website)
|Name||Proceedings - International Conference on Image Processing, ICIP|
|Conference||29th IEEE International Conference on Image Processing, ICIP 2022|
|Period||16/10/22 → 19/10/22|
|Other||The 29th IEEE International Conference on Image Processing (IEEE ICIP) will be held in Bordeaux, France in the period October 16-19, 2022.|
The IEEE ICIP is the world’s largest and most comprehensive technical conference focused on image and video processing and computer vision. This conference will showcase world-class plenary speakers, tutorials, exhibits, special sessions, industry sessions, and women in engineering that creates an excellent forum to foster innovation and entrepreneurship. There will be opportunities to network with the brightest minds in academia and industry from this field. In addition, several events targeting students and professionals will also be featured at IEEE ICIP 2022.