View source for 18512471. LUMA-BASED CHROMA INTRA-PREDICTION FOR VIDEO CODING simplified abstract (TEXAS INSTRUMENTS INCORPORATED)

=LUMA-BASED CHROMA INTRA-PREDICTION FOR VIDEO CODING=


==Organization Name==

[[:Category:TEXAS INSTRUMENTS INCORPORATED|TEXAS INSTRUMENTS INCORPORATED]]


[[Category:TEXAS INSTRUMENTS INCORPORATED]]

==Inventor(s)==

[[:Category:Madhukar Budagavi of Plano TX (US)|Madhukar Budagavi of Plano TX (US)]][[Category:Madhukar Budagavi of Plano TX (US)]]

[[:Category:Akira Osamoto of Plano TX (US)|Akira Osamoto of Plano TX (US)]][[Category:Akira Osamoto of Plano TX (US)]]

==LUMA-BASED CHROMA INTRA-PREDICTION FOR VIDEO CODING - A simplified explanation of the abstract==


This abstract first appeared for US patent application 18512471 titled 'LUMA-BASED CHROMA INTRA-PREDICTION FOR VIDEO CODING

==Simplified Explanation==

The method described in the abstract involves predicting chroma samples based on a linear model using reconstructed luma samples and neighboring chroma samples.
* Down sample a reconstructed luma block of a largest coding unit (LCU).
* Compute parameters α and β of a linear model using immediate top neighboring reconstructed luma samples, left neighboring reconstructed luma samples, and reconstructed neighboring chroma samples.
* Predict chroma samples using the linear model and the computed parameters.

== Potential Applications ==
This technology can be applied in video encoders and decoders to improve chroma intra-prediction accuracy and efficiency.

== Problems Solved ==
1. Improved chroma intra-prediction accuracy.
2. Enhanced video encoding and decoding performance.

== Benefits ==
1. Higher quality video output.
2. Reduced computational complexity.
3. Enhanced compression efficiency.

== Potential Commercial Applications ==
Enhancing video quality in streaming services, video conferencing, surveillance systems, and broadcasting.

== Possible Prior Art ==
Prior art in luma-based chroma intra-prediction methods in video encoders and decoders may exist, but specific examples are not provided in the abstract.

== Unanswered Questions ==
=== How does this method compare to existing chroma intra-prediction techniques in terms of computational efficiency? ===
The abstract does not provide a direct comparison with existing techniques in terms of computational efficiency. Further research or experimentation may be needed to evaluate this aspect.

=== What impact does this method have on overall video compression ratios? ===
The abstract does not mention the impact of this method on overall video compression ratios. Additional studies or analyses could shed light on this aspect.


==Original Abstract Submitted==

A method for luma-based chroma intra-prediction in a video encoder or a video decoder is provided that includes down sampling a first reconstructed luma block of a largest coding unit (LCU), computing parameters α and β of a linear model using immediate top neighboring reconstructed luma samples and left neighboring reconstructed luma samples of the first reconstructed luma block and reconstructed neighboring chroma samples of a chroma block corresponding to the first reconstructed luma block, wherein the linear model is Pred[x,y]=α·Rec′[x,y]+β, wherein x and y are sample coordinates, Predis predicted chroma samples, and Rec′ is samples of the down sampled first reconstructed luma block, and wherein the immediate top neighboring reconstructed luma samples are the only top neighboring reconstructed luma samples used, and computing samples of a first predicted chroma block from corresponding samples of the down sampled first reconstructed luma block using the linear model and the parameters.



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