公开(公告)号：US07456760B2

公开(公告)日：2008-11-25

申请号：US11519843

申请日：2006-09-11

申请人： Jim Normile ,  Thomas Pun ,  Xiaojin Shi ,  Xin Tong ,  Hsi-Jung Wu

发明人： Jim Normile ,  Thomas Pun ,  Xiaojin Shi ,  Xin Tong ,  Hsi-Jung Wu

IPC分类号： H03M7/00

CPC分类号： H04N19/154 ,  H04N19/156 ,  H04N19/164

摘要： Techniques for encoding data based at least in part upon an awareness of the decoding complexity of the encoded data and the ability of a target decoder to decode the encoded data are disclosed. In some embodiments, a set of data is encoded based at least in part upon a state of a target decoder to which the encoded set of data is to be provided. In some embodiments, a set of data is encoded based at least in part upon the states of multiple decoders to which the encoded set of data is to be provided.

摘要翻译： 公开了至少部分地基于编码数据的解码复杂度的意识和目标解码器解码编码数据的能力对数据进行编码的技术。 在一些实施例中，至少部分地基于要提供编码数据集合的目标解码器的状态对数据集进行编码。 在一些实施例中，一组数据至少部分地基于要提供编码数据集的多个解码器的状态进行编码。

公开(公告)号：US20080181298A1

公开(公告)日：2008-07-31

申请号：US11627457

申请日：2007-01-26

申请人： Xiaojin Shi ,  Hsi-Jung Wu ,  James Oliver Normile

发明人： Xiaojin Shi ,  Hsi-Jung Wu ,  James Oliver Normile

IPC分类号： H04N7/32 ,  H04N7/26

CPC分类号： H04N21/23439 ,  H04N19/156 ,  H04N19/30 ,  H04N19/40 ,  H04N19/46 ,  H04N21/234327 ,  H04N21/235 ,  H04N21/2662 ,  H04N21/435 ,  H04N21/84

摘要： Systems, apparatuses and methods whereby coded bitstreams are delivered to downstream end-user devices having various performance capabilities. A head-end encoder/video store generates a primary coded bitstream and metadata for delivery to an intermediate re-encoding system. The re-encoding system recodes the primary coded bitstream to generate secondary coded bitstreams based on coding parameters in the metadata. Each secondary coded bitstream is matched to a conformance point of a downstream end-user device. Coding parameters for each conformance point can be derived from the head-end encoder encoding original source video to generate the secondary coded bitstreams and extracting information from the coding process/results. The metadata can then can be communicated as part of the primary coded bitstream (e.g., as SEI) or can be communicated separately. As a result, the complexity of the secondary coded bitstream is appropriately scaled to match the capabilities of the downstream end-user device to which it is delivered.

摘要翻译： 其中编码比特流被传送到具有各种性能能力的下游终端用户设备的系统，设备和方法。 头端编码器/视频存储器产生主编码比特流和元数据以传送到中间重编码系统。 重编码系统基于元数据中的编码参数来重新编码主编码比特流以生成辅助编码比特流。 每个辅助编码比特流与下游终端用户设备的一致性点匹配。 可以从编码原始源视频的前端编码器导出用于每个一致性点的编码参数，以生成辅助编码比特流并从编码处理/结果中提取信息。 然后可以将元数据作为主编码比特流的一部分（例如，作为SEI）传送或者可以单独通信。 结果，二次编码比特流的复杂度被适当地缩放以匹配其被传递到的下游终端用户设备的能力。

公开(公告)号：US20080062018A1

公开(公告)日：2008-03-13

申请号：US11519843

申请日：2006-09-11

申请人： Jim Normile ,  Thomas Pun ,  Xiaojin Shi ,  Xin Tong ,  Hsi-Jung Wu

发明人： Jim Normile ,  Thomas Pun ,  Xiaojin Shi ,  Xin Tong ,  Hsi-Jung Wu

IPC分类号： H03M7/00

CPC分类号： H04N19/154 ,  H04N19/156 ,  H04N19/164

摘要： Techniques for encoding data based at least in part upon an awareness of the decoding complexity of the encoded data and the ability of a target decoder to decode the encoded data are disclosed. In some embodiments, a set of data is encoded based at least in part upon a state of a target decoder to which the encoded set of data is to be provided. In some embodiments, a set of data is encoded based at least in part upon the states of multiple decoders to which the encoded set of data is to be provided.

公开(公告)号：US08830092B2

公开(公告)日：2014-09-09

申请号：US13156610

申请日：2011-06-09

申请人： Jim Normile ,  Thomas Pun ,  Xiaojin Shi ,  Xin Tong ,  Hsi-Jung Wu

发明人： Jim Normile ,  Thomas Pun ,  Xiaojin Shi ,  Xin Tong ,  Hsi-Jung Wu

IPC分类号： H03M7/00

CPC分类号： H04N19/154 ,  H04N19/156 ,  H04N19/164

摘要： Techniques for encoding data based at least in part upon an awareness of the decoding complexity of the encoded data and the ability of a target decoder to decode the encoded data are disclosed. In some embodiments, a set of data is encoded based at least in part upon a state of a target decoder to which the encoded set of data is to be provided. In some embodiments, a set of data is encoded based at least in part upon the states of multiple decoders to which the encoded set of data is to be provided.

摘要翻译： 公开了至少部分地基于编码数据的解码复杂度的意识和目标解码器解码编码数据的能力对数据进行编码的技术。 在一些实施例中，至少部分地基于要提供编码数据集合的目标解码器的状态对数据集进行编码。 在一些实施例中，一组数据至少部分地基于要提供编码数据集的多个解码器的状态进行编码。

公开(公告)号：US20110090303A1

公开(公告)日：2011-04-21

申请号：US12581043

申请日：2009-10-16

申请人： Hsi-Jung Wu ,  Chris Yoochang Chung ,  Xiaojin Shi ,  James Normile

发明人： Hsi-Jung Wu ,  Chris Yoochang Chung ,  Xiaojin Shi ,  James Normile

IPC分类号： H04N7/15 ,  H04N5/217

CPC分类号： G06K9/00228 ,  G06T3/00 ,  G06T5/006 ,  G06T2207/20104 ,  G06T2207/30201 ,  H04N5/217 ,  H04N5/23219 ,  H04N5/23258 ,  H04N5/23267

摘要： Methods, systems, and apparatus are presented for reducing distortion in an image, such as a video image. A video image can be captured by an image capture device, e.g. during a video conferencing session. Distortion correction processing, such as the application of one or more warping techniques, can be applied to the captured image to produce a distortion corrected image, which can be transmitted to one or more participants. The warping techniques can be performed in accordance with one or more warp parameters specifying a transformation of the captured image. Further, the warp parameters can be generated in accordance with an orientation of the image capture device, which can be determined based on sensor data or can be a fixed value. Additionally or alternatively, the warp parameters can be determined in accordance with a reference image or model to which the captured image should be warped.

摘要翻译： 呈现了用于减少诸如视频图像的图像中的失真的方法，系统和装置。 视频图像可以由图像捕获设备捕获，例如， 在视频会议期间。 畸变校正处理，例如应用一个或多个翘曲技术，可以应用于所捕获的图像，以产生可以发送到一个或多个参与者的失真校正图像。 翘曲技术可以根据指定捕获图像的变换的一个或多个翘曲参数来执行。 此外，可以根据可以基于传感器数据确定的图像捕获装置的取向来生成翘曲参数，或者可以是固定值。 附加地或替代地，可以根据捕获的图像应该翘曲的参考图像或模型来确定翘曲参数。

公开(公告)号：US20100086063A1

公开(公告)日：2010-04-08

申请号：US12415340

申请日：2009-03-31

申请人： Barin Geoffry Haskell ,  Xiaojin Shi

发明人： Barin Geoffry Haskell ,  Xiaojin Shi

IPC分类号： H04N7/26 ,  H04N17/00

CPC分类号： H04N19/156 ,  H04N19/103 ,  H04N19/12 ,  H04N19/132 ,  H04N19/147 ,  H04N19/15 ,  H04N19/154 ,  H04N19/176

摘要： Systems and methods for applying a new quality metric for coding video are provided. The metric, based on the Just Noticeable Difference (JND) distortion visibility model, allows for efficient selection of coding techniques that limit perceptible distortion in the video while still taking into account parameters, such as desired bit rate, that can enhance system performance. Additionally, the unique aspects of each input type, system and display may be considered. Allowing for a programmable minimum viewing distance (MVD) parameter also ensures that the perceptible distortion will not be noticeable at the specified MVD, even though the perceptible distortion may be significant at an alternate distance.

摘要翻译： 提供了应用用于编码视频的新质量度量的系统和方法。 基于JustInable Difference（JND）失真可见性模型的度量能够有效地选择限制视频中可察觉的失真的编码技术，同时仍然考虑可以提高系统性能的所需比特率等参数。 此外，可以考虑每个输入类型，系统和显示器的独特方面。 允许可编程的最小观察距离（MVD）参数还确保在指定的MVD下可感知的失真不会明显，即使可察觉的失真在另一距离处可能是显着的。