公开(公告)号：US10148977B2

公开(公告)日：2018-12-04

申请号：US15178316

申请日：2016-06-09

Applicant: Futurewei Technologies, Inc.

Inventor： Haoping Yu ,  Meng Xu ,  Wei Wang ,  Fanyi Duanmu ,  Shervin Minaee

IPC: H04N19/513 ,  H04N19/176 ,  H04N19/119 ,  H04N19/96

Abstract: An encoding apparatus, decoding apparatus, and coding methods are provided. A method of decoding including receiving, by a decoder, a bitstream from an encoder, scanning, using the decoder, the bitstream to identify a first flag corresponding to a string of index values in a block other than a last string and a second flag corresponding to the last string of index values from the block, determining, by the decoder, that a context model used to encode the first flag is the same as the context model used to encode the second flag, and generating, by the decoder, a video frame using the context model.

公开(公告)号：US20160234501A1

公开(公告)日：2016-08-11

申请号：US14620059

申请日：2015-02-11

Applicant: Futurewei Technologies, Inc.

Inventor： Shervin Minaee ,  Haoping Yu

IPC: H04N19/136 ,  G06K9/62 ,  H04N19/176 ,  G06K9/46 ,  H04N19/50 ,  H04N19/44

CPC classification number: H04N19/136 ,  G06K9/4661 ,  G06K9/6215 ,  H04N19/103 ,  H04N19/176 ,  H04N19/184 ,  H04N19/186 ,  H04N19/44 ,  H04N19/463 ,  H04N19/50 ,  H04N19/593

Abstract: Embodiments are provided for compressing a color index map in video coding applications including screen content images. An embodiment method includes obtaining, at a video codec device, an image block, and generating a color index map comprising a plurality of entries and representing the image block. Each one of the entries is assigned a color index indicating a respective color. The method further includes assigning, in a correct prediction map, a first bit-value for each one of the entries that is predictable by a neighboring entry in the color index map, and a second bit-value for each one of the entries that is unpredictable by any neighboring entry in the color index map. Further, an actual value from the color index map for the each one of the entries that is unpredictable by any neighboring entry is added in a sequence of non-predictable color indices.

Abstract translation: 提供实施例用于在包括屏幕内容图像的视频编码应用中压缩颜色索引图。 一种实施方式包括在视频编解码设备处获得图像块，以及生成包括多个条目并表示图像块的颜色索引图。 为每个条目分配指示相应颜色的颜色索引。 该方法还包括在正确的预测图中分配对于颜色索引图中的相邻条目可预测的每个条目的第一位值，以及对于每个条目的第二位值， 颜色索引图中任何相邻条目都无法预知。 此外，对于由任何相邻条目不可预测的每个条目的颜色索引图的实际值以不可预测的颜色索引的顺序被添加。

公开(公告)号：US09729885B2

公开(公告)日：2017-08-08

申请号：US14620059

申请日：2015-02-11

Applicant: Futurewei Technologies, Inc.

Inventor： Shervin Minaee ,  Haoping Yu

IPC: H04N19/50 ,  H04N19/136 ,  H04N19/44 ,  H04N19/176 ,  G06K9/46 ,  G06K9/62 ,  H04N19/593 ,  H04N19/103 ,  H04N19/463 ,  H04N19/186 ,  H04N19/184

CPC classification number: H04N19/136 ,  G06K9/4661 ,  G06K9/6215 ,  H04N19/103 ,  H04N19/176 ,  H04N19/184 ,  H04N19/186 ,  H04N19/44 ,  H04N19/463 ,  H04N19/50 ,  H04N19/593

Abstract: Embodiments are provided for compressing a color index map in video coding applications including screen content images. An embodiment method includes obtaining, at a video codec device, an image block, and generating a color index map comprising a plurality of entries and representing the image block. Each one of the entries is assigned a color index indicating a respective color. The method further includes assigning, in a correct prediction map, a first bit-value for each one of the entries that is predictable by a neighboring entry in the color index map, and a second bit-value for each one of the entries that is unpredictable by any neighboring entry in the color index map. Further, an actual value from the color index map for the each one of the entries that is unpredictable by any neighboring entry is added in a sequence of non-predictable color indices.

公开(公告)号：US20160373756A1

公开(公告)日：2016-12-22

申请号：US15178316

申请日：2016-06-09

Applicant: Futurewei Technologies, Inc.

Inventor： Haoping Yu ,  Meng Xu ,  Wei Wang ,  Fanyi Duanmu ,  Shervin Minaee

IPC: H04N19/13 ,  H04N19/513 ,  H04N19/119 ,  H04N19/129 ,  H04N19/176 ,  H04N19/96

CPC classification number: H04N19/513 ,  H04N19/119 ,  H04N19/176 ,  H04N19/96

Abstract: An encoding apparatus, decoding apparatus, and coding methods are provided. A method of decoding including receiving, by a decoder, a bitstream from an encoder, scanning, using the decoder, the bitstream to identify a first flag corresponding to a string of index values in a block other than a last string and a second flag corresponding to the last string of index values from the block, determining, by the decoder, that a context model used to encode the first flag is the same as the context model used to encode the second flag, and generating, by the decoder, a video frame using the context model

Abstract translation: 提供了编码装置，解码装置和编码方法。 一种解码方法，包括由解码器从编码器接收比特流，使用解码器扫描比特流，以识别与除最后一个字符串以外的块中的索引值串相对应的第一标志和相应的第二标志 对于来自块的索引值的最后一串，由解码器确定用于对第一标记进行编码的上下文模型与用于编码第二标志的上下文模型相同，并且由解码器生成视频 框架使用上下文模型