no code implementations • 15 Jun 2021 • Di Ma, Mariana Afonso, Fan Zhang, David R. Bull
Spatial resolution adaptation is a technique which has often been employed in video compression to enhance coding efficiency.
no code implementations • 18 Mar 2021 • Alex Mackin, Di Ma, Fan Zhang, David Bull
Bit depth adaptation, where the bit depth of a video sequence is reduced before transmission and up-sampled during display, can potentially reduce data rates with limited impact on perceptual quality.
1 code implementation • 18 Nov 2020 • Di Ma, Fan Zhang, David R. Bull
We propose a new Generative Adversarial Network for Compressed Video quality Enhancement (CVEGAN).
no code implementations • 16 Sep 2020 • Fan Zhang, Di Ma, Chen Feng, David R. Bull
In recent years, video compression techniques have been significantly challenged by the rapidly increased demands associated with high quality and immersive video content.
no code implementations • 29 Jul 2020 • Di Ma, Fan Zhang, David R. Bull
It has recently been demonstrated that spatial resolution adaptation can be integrated within video compression to improve overall coding performance by spatially down-sampling before encoding and super-resolving at the decoder.
no code implementations • 14 Jul 2020 • Di Ma, Fan Zhang, David R. Bull
Each MFRB extracts features from multiple convolutional layers using dense connections and a multi-level residual learning structure.
no code implementations • 30 Mar 2020 • Di Ma, Fan Zhang, David R. Bull
Deep learning methods are increasingly being applied in the optimisation of video compression algorithms and can achieve significantly enhanced coding gains, compared to conventional approaches.
no code implementations • 22 Jul 2019 • Nan Xi, Di Ma, Marcus Liou, Zachary C. Steinert-Threlkeld, Jason Anastasopoulos, Jungseock Joo
In this paper, we seek to understand how politicians use images to express ideological rhetoric through Facebook images posted by members of the U. S. House and Senate.
no code implementations • 8 Jun 2018 • Xu Ouyang, Xi Zhang, Di Ma, Gady Agam
Generating images from word descriptions is a challenging task.
no code implementations • 9 May 2018 • Xi Zhang, Di Ma, Xu Ouyang, Shanshan Jiang, Lin Gan, Gady Agam
We show that by using masks the motion estimate results in a quadratic function of input features in the output layer.
no code implementations • 2 Dec 2017 • Di Ma, Xi Zhang, Xu Ouyang, Gady Agam
This paper presents a novel approach for lecture video indexing using a boosted deep convolutional neural network system.
1 code implementation • 21 Jul 2016 • Xi Zhang, Di Ma, Lin Gan, Shanshan Jiang, Gady Agam
In this paper we propose a novel extension to the SMOTE algorithm with a theoretical guarantee for improved classification performance.