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Jointly Optimized Transform Domain Temporal Prediction and Sub-pixel Interpolation

Abstract: 

Conventional pixel-domain block matching temporal (inter) prediction is suboptimal, since it ignores the underlying spatial correlation. Hence in our recent research we proposed transform domain temporal prediction (TDTP), wherein spatially de-correlated transform coefficients are individually predicted. Later we proposed extended block TDTP (EB-TDTP), which fully exploits spatial correlation around reference block boundaries. However, the transform domain temporal correlation exploited by (EB-)TDTP interferes with the frequency response of sub-pixel interpolation filters. Thus, in this paper, we propose to replace the standard sub-pixel interpolation with filters which are jointly designed with EB-TDTP based on statistics of the data, for either separable or non-separable interpolation structures. We also employ a two-loop asymptotic closed-loop (ACL) approach for statistically stable off-line design. Experiments show that our framework can achieve up to 1dB gain in PSNR over HEVC.

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Paper Details

Authors:
Tejaswi Nanjundaswamy, Kenneth Rose
Submitted On:
11 March 2017 - 12:06am
Short Link:
Type:
Presentation Slides
Event:
Presenter's Name:
Shunyao Li
Paper Code:
IVMSP-L4.2
Document Year:
2017
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Document Files

icassp2017-2324-slides.pdf

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[1] Tejaswi Nanjundaswamy, Kenneth Rose, "Jointly Optimized Transform Domain Temporal Prediction and Sub-pixel Interpolation", IEEE SigPort, 2017. [Online]. Available: http://sigport.org/1742. Accessed: Aug. 24, 2017.
@article{1742-17,
url = {http://sigport.org/1742},
author = {Tejaswi Nanjundaswamy; Kenneth Rose },
publisher = {IEEE SigPort},
title = {Jointly Optimized Transform Domain Temporal Prediction and Sub-pixel Interpolation},
year = {2017} }
TY - EJOUR
T1 - Jointly Optimized Transform Domain Temporal Prediction and Sub-pixel Interpolation
AU - Tejaswi Nanjundaswamy; Kenneth Rose
PY - 2017
PB - IEEE SigPort
UR - http://sigport.org/1742
ER -
Tejaswi Nanjundaswamy, Kenneth Rose. (2017). Jointly Optimized Transform Domain Temporal Prediction and Sub-pixel Interpolation. IEEE SigPort. http://sigport.org/1742
Tejaswi Nanjundaswamy, Kenneth Rose, 2017. Jointly Optimized Transform Domain Temporal Prediction and Sub-pixel Interpolation. Available at: http://sigport.org/1742.
Tejaswi Nanjundaswamy, Kenneth Rose. (2017). "Jointly Optimized Transform Domain Temporal Prediction and Sub-pixel Interpolation." Web.
1. Tejaswi Nanjundaswamy, Kenneth Rose. Jointly Optimized Transform Domain Temporal Prediction and Sub-pixel Interpolation [Internet]. IEEE SigPort; 2017. Available from : http://sigport.org/1742