专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO2021161028A1 USE OF TIERED HIERARCHICAL CODING FOR POINT CLOUD COMPRESSION 审中-公开
公开(公告)号：WO2021161028A1
公开(公告)日：2021-08-19
申请号：PCT/GB2021/050335
申请日：2021-02-11
申请人： V-NOVA INTERNATIONAL LIMITED
发明人： MEARDI, Guido
IPC分类号： H04N19/33 , H04N19/597 , H04N19/34
摘要： A method of encoding a three-dimensional point cloud. The method comprising: obtaining a set of points within the three-dimensional point cloud, a point within the set of points having a co-ordinate in three-dimensions; converting the points into a two-dimensional representation, wherein, for a point within the set of points, information describing the co-ordinate is represented as a location within the two-dimensional representation and a value at the location; and encoding the two-dimensional representation using a tier-based hierarchical coding format to output encoded data, wherein the tier-based hierarchical coding format encodes the two- dimensional representation as a plurality of layers, the plurality of layers representing echelons of data used to progressively reconstruct the signal at different levels of quality.

2. 发明申请

WO2015004323A1 AN APPARATUS, A METHOD AND A COMPUTER PROGRAM FOR VIDEO CODING AND DECODING 审中-公开
标题翻译：一种视频编码和解码的装置，方法和计算机程序
公开(公告)号：WO2015004323A1
公开(公告)日：2015-01-15
申请号：PCT/FI2014/050515
申请日：2014-06-25
申请人： NOKIA CORPORATION
发明人： UGUR, Kemal , HANNUKSELA, Miska
IPC分类号： H04N19/55 , H04N19/30 , H04N19/34 , H04N19/187
CPC分类号： H04N19/44 , H04N19/167 , H04N19/176 , H04N19/187 , H04N19/30 , H04N19/33 , H04N19/34 , H04N19/51 , H04N19/55 , H04N19/59 , H04N19/70
摘要： A method for decoding a scalable bitstream comprising a base layer and at least one enhancement layer, the method comprising obtaining information regarding a set of tiles in an enhancement layer picture; obtaining information regarding a set of tiles in a base layer picture; obtaining coding constraints for said set of tiles in the enhancement layer picture, the coding constraints comprising at least inter-layer prediction constraints in with respect to the base layer picture; and decoding said set of tiles in the enhancement layer picture according to the coding constraints as an independently decodable region.
摘要翻译：一种用于解码包括基本层和至少一个增强层的可分级比特流的方法，所述方法包括：获得关于增强层图片中的一组瓦片的信息; 获取关于基层图像中的一组瓦片的信息; 获得所述增强层图像中的所述瓦片组的编码约束，所述编码约束至少包括相对于所述基本层图像的层间预测约束; 并且根据编码约束将所述增强层图像中的所述瓦片组解码为可独立解码的区域。

3. 发明申请

WO2014093079A1 DEVICE AND METHOD FOR SCALABLE CODING OF VIDEO INFORMATION BASED ON HIGH EFFICIENCY VIDEO CODING 审中-公开
标题翻译：基于高效率视频编码的视频信息可扩展编码的设备和方法
公开(公告)号：WO2014093079A1
公开(公告)日：2014-06-19
申请号：PCT/US2013/073015
申请日：2013-12-04
申请人： QUALCOMM INCORPORATED
发明人： SEREGIN, Vadim , CHEN, Ying , CHEN, Jianle
IPC分类号： H04N19/30 , H04N19/50 , H04N19/55 , H04N19/34 , H04N19/98 , H04N19/19 , H04N19/147
CPC分类号： H04N19/30 , H04N19/33 , H04N19/34 , H04N19/463 , H04N19/50 , H04N19/55 , H04N19/59
摘要： An apparatus configured to code video information includes a memory unit and a processor in communication with the memory unit. The memory unit is configured to store video information associated with an enhancement layer having a first block and a base layer having a second block, the second block in the base layer corresponding to the first block in the enhancement layer. The processor is configured to predict, by inter layer prediction, the first block in the enhancement layer based on information derived from the second block in the base layer. At least a portion of the second block is located outside of a reference region of the base layer, the reference region being available for use for the inter layer prediction of the first block. The processor may encode or decode the video information.
摘要翻译：被配置为对视频信息进行编码的装置包括与存储器单元通信的存储器单元和处理器。存储器单元被配置为存储与具有第一块的增强层相关联的视频信息和具有第二块的基本层，所述基本层中的第二块对应于增强层中的第一块。处理器被配置为基于从基层中的第二块导出的信息，通过层间预测来预测增强层中的第一块。第二块的至少一部分位于基本层的参考区域的外部，该参考区域可用于第一块的层间预测。处理器可以对视频信息进行编码或解码。

4. 发明申请

WO2014049210A1 AN APPARATUS, A METHOD AND A COMPUTER PROGRAM FOR VIDEO CODING AND DECODING 审中-公开
标题翻译：一种视频编码和解码的装置，方法和计算机程序
公开(公告)号：WO2014049210A1
公开(公告)日：2014-04-03
申请号：PCT/FI2013/050941
申请日：2013-09-27
申请人： NOKIA CORPORATION
发明人： LAINEMA, Jani , HANNUKSELA, Miska , UGUR, Kemal , BICI, Mehmet Oguz
IPC分类号： H04N19/34 , H04N19/29 , H04N19/503 , G06T7/20
CPC分类号： H04N19/00587 , H04N19/30 , H04N19/513 , H04N19/59
摘要： In some embodiments, there is provided an apparatus, a computer readable storage medium stored with code thereon for use by an apparatus, and a video decoder, for decoding a video bitstream, to derive a motion compensated prediction for an enhancement layer block based on a motion compensation process on the co-located base layer block using the same or similar motion vector of enhancement layer blocks and base layer reference pictures. In other embodiments, there is provided a method, an apparatus, a computer readable storage medium stored with code thereon for use by an apparatus, and a video encoder, for encoding a video bitstream, to derive a motion compensated prediction for an enhancement layer block based on a motion compensation process on the co-located base layer block using the same or similar motion vector of enhancement layer blocks and base layer reference pictures.
摘要翻译：在一些实施例中，提供了一种设备，存储有用于设备使用的代码的计算机可读存储介质和用于对视频比特流进行解码的视频解码器，以基于以下内容导出用于增强层块的运动补偿预测使用相同或相似的增强层块和基本层参考图片的运动矢量在同位置的基层块上的运动补偿处理。在其他实施例中，提供了一种方法，装置，存储有用于装置使用的代码的计算机可读存储介质和用于编码视频比特流的视频编码器，以导出用于增强层块的运动补偿预测基于使用相同或相似的增强层块和基本层参考图片的运动矢量的同位置基层块上的运动补偿处理。

5. 发明申请

WO2005043919B1 IMAGE DECODING APPARATUS AND IMAGE DECODING METHOD 审中-公开
标题翻译：图像解码设备和图像解码方法
公开(公告)号：WO2005043919B1
公开(公告)日：2005-06-16
申请号：PCT/JP2004016200
申请日：2004-10-26
申请人： NEC ELECTRONICS CORP , KATAYAMA YOICHI
发明人： KATAYAMA YOICHI
IPC分类号： H03M7/30 , H04N1/41 , H04N19/127 , H04N19/156 , H04N19/33 , H04N19/34 , H04N19/436 , H04N19/44 , H04N19/60 , H04N19/63 , H04N19/91 , H04N7/26
CPC分类号： H04N19/44 , H04N19/127 , H04N19/63 , H04N19/91
摘要： An image decoding apparatus includes an analyzing section and an image decoding section. The analyzing section determines a process quantity of a coded image data to each of a plurality of image decoding processes within a unit process time based on a parameter of the coded image data, prior to the plurality of image decoding processes. The image decoding section carries out each of the plurality of image decoding processes to the coded image data for the determined process quantity such that a decoded image data is generated from the coded image data.
摘要翻译：图像解码装置包括分析部分和图像解码部分。分析部在多个图像解码处理之前，基于编码图像数据的参数，在单位处理时间内的多个图像解码处理中的每一个图像数据的处理量。图像解码部分对所确定的处理量的编码图像数据执行多个图像解码处理中的每一个，使得从编码图像数据生成解码图像数据。

6. 发明申请

WO01086958A1 METHOD AND AN ARRANGEMENT FOR THE CODING OR DECODING OF A SERIES OF IMAGES 审中-公开
标题翻译：方法和编码设备或了译码图像序列
公开(公告)号：WO01086958A1
公开(公告)日：2001-11-15
申请号：PCT/DE2001/001688
申请日：2001-05-03
IPC分类号： H03M7/30 , H04N19/34 , H04N7/26
CPC分类号： H04N19/34
摘要： In order to achieve the aim of the invention, a method for the coding of a series of images is disclosed, whereby base information and additional information are determined for the series of images. Said images are coded by means of the base information and the additional information, whereby the additional information guarantees a progressive improvement in image quality.
摘要翻译：为了达到上述目的，被指定用于编码的图像序列的方法，基站信息和附加信息的图像的序列，并使用基本信息和附加信息的图像的序列中被确定被编码，其中，所述附加信息是一个渐进的改善在编码质量保证。

7. 发明申请

WO2022143205A1 编解码方法、电子设备、通信系统以及存储介质审中-公开
公开(公告)号：WO2022143205A1
公开(公告)日：2022-07-07
申请号：PCT/CN2021/138939
申请日：2021-12-16
申请人：华为技术有限公司
发明人：孙伟
IPC分类号： H04N19/34 , H04N19/597
摘要：本申请实施例提供一种编解码方法、电子设备、通信系统以及存储介质。编码方法包括：接收到第二设备发送的拍摄指令后，开启所述第一摄像头和所述第二摄像头；对第一全景图像进行编码，得到第一压缩图像，所述第一全景图像为所述第一全景图像流中任一图像；根据所述第一全景图像和第一特写图像，获取第一差值图像，所述第一特写图像为所述第一特写图像流中与所述第一全景图像同步采集的图像；对所述第一差值图像进行编码，得到第二压缩图像；向所述第二设备发送所述第一压缩图像和所述第二压缩图像。由于特写图像的画面是全景图像上局部区域的特写，因此差值图像的数据量很小，不会出现I帧并发导致的画面抖动问题。

8. 发明申请

WO2021061531A1 OLS FOR MULTIVIEW SCALABILITY 审中-公开
公开(公告)号：WO2021061531A1
公开(公告)日：2021-04-01
申请号：PCT/US2020/051608
申请日：2020-09-18
申请人： FUTUREWEI TECHNOLOGIES, INC.
发明人： WANG, Ye-Kui
IPC分类号： H04N19/30 , H04N19/31 , H04N19/33 , H04N19/44 , H04N19/34 , H04N19/70 , H04N19/20
摘要： A video coding mechanism is disclosed. The mechanism includes receiving a bitstream comprising an output layer set (OLS) and a video parameter set (VPS). The OLS includes one or more layers of coded pictures and the VPS includes an OLS mode identification code (ols_mode_idc) specifying that for each OLS, all layers in the each OLS are output layers. The output layers are determined based on the ols_mode_idc in the VPS. A coded picture from the output layers is decoded to produce a decoded picture. The decoded picture is forwarded for display as part of a decoded video sequence.

9. 发明申请

WO2017037421A1 IMAGE COMPRESSION 审中-公开
标题翻译：图像压缩
公开(公告)号：WO2017037421A1
公开(公告)日：2017-03-09
申请号：PCT/GB2016/052600
申请日：2016-08-22
申请人： UNIVERSITY OF WARWICK
发明人： CHALMERS, Alan , DEBATTISTA, Kurt , HATCHETT, Jonathan , MCNAMEE, Joshua
IPC分类号： G06T5/00 , H04N19/34 , H04N19/30 , H04N19/184 , H04N19/172
CPC分类号： H04N19/184 , G09G2320/0276 , H04N19/172 , H04N19/34 , H04N19/46
摘要： A method of compressing and decompressing High Dynamic Range images utilising the relationship : (I) Where γ ≥ 2.5; and (II) = compressed; and (III) = linear
摘要翻译：一种使用以下关系压缩和解压缩高动态范围图像的方法：（I）其中γ≥2.5; 和（II）=压缩; 和（III）=线性

10. 发明申请

WO03047260A3 METHOD AND APPARATUS FOR DECODING SPATIALLY SCALED FINE GRANULAR ENCODED VIDEO SIGNALS 审中-公开
标题翻译：用于解码空间缩放细粒度编码视频信号的方法和设备
公开(公告)号：WO03047260A3
公开(公告)日：2003-10-16
申请号：PCT/IB0204740
申请日：2002-11-12
申请人： KONINKL PHILIPS ELECTRONICS NV
发明人： VAN DER SCHAAR MIHAELA , BALAKRISHNAN MAHESH
IPC分类号： H04N19/34 , H03M7/36 , H04N21/647 , H04N7/26
CPC分类号： H04N19/36 , H04N19/31 , H04N19/33 , H04N19/34 , H04N19/44 , H04N19/59 , H04N19/61 , H04N21/234327 , H04N21/234363 , H04N21/4621 , H04N21/64792
摘要： A method and system for producing decoding the transmission of high-resolution images transmitted as a low resolution spatially scalable FGS encoded base layer and at least one enhancement layer is presented. The low resolution received base layer is representative of a downscaled image of the original image. In this manner, a minimum resolution base layer is transmitted and higher resolutions may be obtained and utilized depending on the available bandwidth and the receiving system resolution capability. In one aspect of the invention, the base layer isdecoded and a quality enhancement is next applied to the base layer. The combined base layer and quality layer video frames are then upscaled and the upscaled image is combined with a decoded spatial enhancement layer information. The spatial enhancement layer information fills in resolution lacking in the upscaled base layer/quality layer image. Thus, a high resolution image is formed. In another aspect of the invention, a temporal layer, containing information regarding image motion, is further applied to the upscaled base layer image to produce a spatially enhanced/temporally enhanced high resolution image.
摘要翻译：提出了一种用于产生解码的方法和系统，该解码是作为低分辨率空间可缩放FGS编码基础层和至少一个增强层发送的高分辨率图像的传输。低分辨率接收基础层代表原始图像的缩小图像。以这种方式，传输最小分辨率的基础层，并且可以根据可用带宽和接收系统分辨率能力获得和利用更高的分辨率。在本发明的一个方面中，对基本层进行解码并且接下来将质量增强应用于基本层。然后将组合的基本层和质量层视频帧放大，并将放大的图像与解码的空间增强层信息组合。空间增强层信息填充分辨率不足的基础层/质量层图像中的分辨率。因此，形成高分辨率图像。在本发明的另一方面中，包含关于图像运动的信息的时间层进一步应用于放大的基础层图像以产生空间增强/时间增强的高分辨率图像。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式