Method of constrained layer-wise video coding

a layer-wise video and coding technology, applied in the field of layer-wise video coding, can solve problems such as inter-layer prediction problems

Inactive Publication Date: 2022-09-08
HFI INNOVATION INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This approach enables effective chroma motion compensation by ensuring consistent chroma sampling densities across layers, facilitating accurate prediction and decoding processes, even when layers have different chroma formats, thereby improving video coding efficiency.

Problems solved by technology

However, if the chroma formats of two layers are different, it might have problems for inter-layer prediction.

Method used

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  • Method of constrained layer-wise video coding
  • Method of constrained layer-wise video coding
  • Method of constrained layer-wise video coding

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Embodiment Construction

[0018]The following description is of the best-contemplated mode of carrying out the invention. This description is made for the purpose of illustrating the general principles of the invention and should not be taken in a limiting sense. The scope of the invention is best determined by reference to the appended claims.

[0019]It will be readily understood that the components of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following more detailed description of the embodiments of the systems and methods of the present invention, as represented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.

[0020]Reference throughout this specification to “one embodiment,”“an embodiment,” or similar language means that a particular feature, structure, or characteristic describe...

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Abstract

Method and apparatus of video coding using a multi-layer prediction mode, are disclosed. According to one method, a bitstream is generated at an encoder side or received at a decoder side, where the bitstream corresponds to coded data of current video data in a current layer. The bitstream complies with a bitstream conformance requirement corresponding both the bit depth values for the current layer and the reference layer being the same and the chroma format index values for the current layer and the reference layer being the same. The current video data in the current layer is then encoded or decoded by utilizing reference video data in the reference layer.

Description

CROSS REFERENCE TO RELATED APPLICATIONS[0001]The present invention is a Divisional of pending U.S. patent application Ser. No. 17 / 121,927, filed on Dec. 15, 2020, which claims priority to U.S. Provisional Patent Application, Ser. No. 62 / 948,971, filed on Dec. 17, 2019 and U.S. Provisional Patent Application, Ser. No. 62 / 954,019, filed on Dec. 27, 2019. The U.S. Provisional Patent Applications are hereby incorporated by reference in their entireties.FIELD OF THE INVENTION[0002]The present invention relates to Layer-Wise Video Coding. In particular, the present invention relates to constraining parameters for layer-wise video coding to ensure proper motion compensation process for color video.BACKGROUND AND RELATED ART[0003]In VVC Draft 7 (B. Bross, et al., “Versatile Video Coding (Draft 7)”, Joint Video Experts Team (WET) of ITU-T SG 16 WP 3 and ISO / IEC JTC 1 / SC 29 / WG 11, 16th Meeting: Geneva, CH, 1-11 Oct. 2019, Document: JVET-P2001), the layer-wise coding is supported. The layer st...

Claims

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Application Information

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Patent Type & AuthorityApplications(United States)
IPC IPC(8): H04N19/105H04N19/159H04N19/573H04N19/187H04N19/186
CPCH04N19/105H04N19/159H04N19/573H04N19/187H04N19/186H04N19/70H04N19/30H04N19/51
InventorCHUANG, TZU-DERHSU, CHIH-WEICHEN, CHING-YEHCHEN, LULIN
OwnerHFI INNOVATION INC