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1. 发明授权

US5819004A Method and system for a user to manually alter the quality of previously encoded video frames 失效
标题翻译：用于用户手动改变先前编码的视频帧的质量的方法和系统
公开(公告)号：US5819004A
公开(公告)日：1998-10-06
申请号：US466391
申请日：1995-06-06
申请人： Faramarz Azadegan , Jay Yogeshwar , Sheau-Bao Ng , David Lehmann , Mikhail Tsinberg , Hiroaki Unno , Hideki Mimura , Tetsuya Kitamura , Christopher J. Cookson , Greg B. Thagard , Andrew Drusin Rosen
发明人： Faramarz Azadegan , Jay Yogeshwar , Sheau-Bao Ng , David Lehmann , Mikhail Tsinberg , Hiroaki Unno , Hideki Mimura , Tetsuya Kitamura , Christopher J. Cookson , Greg B. Thagard , Andrew Drusin Rosen
IPC分类号： H04N5/92 , G06T9/00 , G11B27/031 , G11B27/034 , G11B27/30 , G11B27/32 , G11B27/34 , G11B27/36 , H04N5/91 , H04N5/926 , H04N7/26 , H04N7/30 , H04N7/32 , H04N7/36 , H04N7/50 , H04N7/52 , H04N9/804 , H04N9/806 , H04N5/76
CPC分类号： H04N9/8063 , G11B27/031 , G11B27/034 , G11B27/34 , G11B27/36 , H04N19/115 , H04N19/124 , H04N19/15 , H04N19/154 , H04N19/157 , H04N19/159 , H04N19/162 , H04N19/17 , H04N19/172 , H04N19/192 , H04N19/503 , H04N19/60 , H04N19/61 , H04N5/9262 , H04N7/52 , H04N9/8042 , G11B2220/2562 , G11B2220/90 , G11B2220/913 , G11B27/3027 , G11B27/329 , H04N19/146 , H04N19/30
摘要： A method and system in which a user manually changes the quality of portions of video frames after the frames have been previously encoded. Regions of one or more frames of video are selected to have an increased quality, a decreased quality, or a quality which should not be altered. After the regions are defined by a user, the frame of video is digitally re-encoded and inserted into the digitally encoded data stream in place of the previously encoded data. In order to easily remove a previously encoded frame from the data steam and replace it with a newly encoded frame having regions of quality defined by the user, it is preferable to have the newly encoded frame consume the same number of bits as the previously encoded frame. Accordingly, if the user desires a region of a frame to have an increased quality, the extra bits necessary to provide the increased quality must be taken from other areas of the frame. This is accomplished by an automatic process which is transparent to the user. Additionally, if the user wants to change the quality of an object for a series of video frames, the user can mark a region in a first frame and a corresponding region in a last frame and the system will automatically adjust the quality of the region as the region moves through the series of video frames.
摘要翻译：一种方法和系统，其中用户在预先编码帧之后手动地改变视频帧的部分的质量。选择一个或多个视频帧的区域具有增加的质量，降低的质量或不应该改变的质量。在由用户定义区域之后，视频帧被数字地重新编码并插入数字编码的数据流中，代替先前编码的数据。为了容易地从数据流中去除先前编码的帧，并用具有由用户定义的质量区域的新编码帧替换，优选地，新编码的帧消耗与先前编码的帧相同的比特数。因此，如果用户期望帧的区域具有增加的质量，则必须从帧的其他区域获取提供增加的质量所需的额外比特。这是通过对用户透明的自动过程来实现的。此外，如果用户想要改变一系列视频帧的对象的质量，则用户可以标记最后一帧中的第一帧和对应区域中的区域，并且系统将自动地将区域的质量调整为该区域移动通过一系列视频帧。

2. 发明授权

US5838874A Audiovisual encoding system with a reduced number of audio encoders 失效
标题翻译：具有减少数量的音频编码器的视听编码系统
公开(公告)号：US5838874A
公开(公告)日：1998-11-17
申请号：US467991
申请日：1995-06-06
申请人： Sheau-Bao Ng , Mikhail Tsinberg , Masaru Sakurai , David Lehmann , Jay Yogeshwar , Faramarz Azadegan , Teiichi Ichikawa , Hiroaki Unno , Hideki Mimura , Tetsuya Kitamura , Christopher J. Cookson , Greg B. Thagard , Andrew Drusin Rosen
发明人： Sheau-Bao Ng , Mikhail Tsinberg , Masaru Sakurai , David Lehmann , Jay Yogeshwar , Faramarz Azadegan , Teiichi Ichikawa , Hiroaki Unno , Hideki Mimura , Tetsuya Kitamura , Christopher J. Cookson , Greg B. Thagard , Andrew Drusin Rosen
IPC分类号： H04N5/92 , G06T9/00 , G11B27/031 , G11B27/034 , G11B27/30 , G11B27/32 , G11B27/34 , G11B27/36 , H04N5/91 , H04N5/926 , H04N7/26 , H04N7/30 , H04N7/36 , H04N7/50 , H04N7/52 , H04N9/804 , H04N9/806 , H04N5/76 , H04N5/928
CPC分类号： H04N9/8063 , G11B27/031 , G11B27/034 , G11B27/34 , G11B27/36 , H04N19/115 , H04N19/124 , H04N19/15 , H04N19/154 , H04N19/157 , H04N19/159 , H04N19/162 , H04N19/17 , H04N19/172 , H04N19/192 , H04N19/503 , H04N19/60 , H04N19/61 , H04N5/9262 , H04N7/52 , H04N9/8042 , G11B2220/2562 , G11B2220/90 , G11B2220/913 , G11B27/3027 , G11B27/329 , H04N19/146 , H04N19/30
摘要： An audiovisual encoding system using a multipass video encoder and a plurality of one-pass audio encoders. The number of audio encoders used by the system is equal to the number of audio tracks to be encoded divided by the number of passes required for the video encoding rounded up to the nearest integer, if necessary. The system allows the video encoder and audio encoders to be used at the same time so that the encoding of the video is completed at the same time as the encoding of all audio tracks is completed, using the minimum number of audio encoders.
摘要翻译：一种使用多通道视频编码器和多个单声道音频编码器的视听编码系统。如果需要，系统使用的音频编码器的数量等于要编码的音轨的数量除以被舍入到最接近的整数的视频编码所需的传递次数。该系统允许同时使用视频编码器和音频编码器，使得在使用最少数量的音频编码器完成所有音轨的编码的同时完成视频的编码。

3. 发明授权

US5684714A Method and system for a user to manually alter the quality of a previously encoded video sequence 失效
标题翻译：用于用户手动改变先前编码的视频序列的质量的方法和系统
公开(公告)号：US5684714A
公开(公告)日：1997-11-04
申请号：US469370
申请日：1995-06-06
申请人： Jay Yogeshwar , Faramarz Azadegan , Sheau-Bao Ng , David Lehmann , Mikhail Tsinberg , Hiroaki Unno , Hideki Mimura , Tetsuya Kitamura , Christopher J. Cookson , Greg B. Thagard , Andrew Drusin Rosen
发明人： Jay Yogeshwar , Faramarz Azadegan , Sheau-Bao Ng , David Lehmann , Mikhail Tsinberg , Hiroaki Unno , Hideki Mimura , Tetsuya Kitamura , Christopher J. Cookson , Greg B. Thagard , Andrew Drusin Rosen
IPC分类号： H04N5/92 , G06T9/00 , G11B20/10 , G11B20/12 , G11B27/00 , G11B27/031 , G11B27/034 , G11B27/30 , G11B27/32 , G11B27/34 , G11B27/36 , H04N5/926 , H04N7/26 , H04N7/30 , H04N7/36 , H04N7/50 , H04N7/52 , H04N9/804 , H04N9/806 , H04N5/76
CPC分类号： H04N9/8063 , G11B27/031 , G11B27/034 , G11B27/34 , G11B27/36 , H04N19/115 , H04N19/124 , H04N19/15 , H04N19/154 , H04N19/157 , H04N19/159 , H04N19/162 , H04N19/17 , H04N19/172 , H04N19/192 , H04N19/503 , H04N19/60 , H04N19/61 , H04N5/9262 , H04N7/52 , H04N9/8042 , G11B2220/2562 , G11B2220/90 , G11B2220/913 , G11B27/3027 , G11B27/329 , H04N19/146 , H04N19/30
摘要： A method and system in which a user manually changes the quality of specific time periods of encoded video. After the automatic encoding of video into a compressed digital format, a person editing the encoded video reviews the quality of the video and manually indicates that the quality of specific time periods of the video is to be altered. As the digital storage medium such as an optical disc which stores the encoded video has a finite storage capacity, the total number of bits for the encoded video and the quality of the video is limited. Consequently, in order to increase the quality for one time period, bits must be taken from other time periods. After the editor assigns the qualities to different time periods, a percentage of bits is removed from the time sequences and placed into a bit pool. The new number of bits for the various time periods are calculated using an exponential function and the bits in the bit pool are proportionally distributed to the video frames. The frames must then be checked and possibly adjusted to assure that underflow of the video buffer will not occur. After the underflow checking procedure, the video is re-encoded with an adjusted quantization in accordance with a quantizer model which will result in a picture having the calculated number of bits and a quality in accordance with the user's selection.
摘要翻译：一种方法和系统，其中用户手动地改变编码视频的特定时间段的质量。在将视频自动编码成压缩数字格式之后，编辑视频的人回顾视频的质量，并手动指示视频的特定时间段的质量将被改变。由于诸如存储编码视频的光盘的数字存储介质具有有限的存储容量，所以编码视频的总位数和视频的质量受到限制。因此，为了提高一个时间段的质量，必须从其他时间段获取位。在编辑器将质量分配给不同的时间段后，从时间序列中删除比特的百分比并将其放入位池。使用指数函数计算各个时间段的新的比特数，并且比特池中的比特按比例分配给视频帧。然后必须检查并可能调整帧，以确保视频缓冲区的下溢不会发生。在下溢检查过程之后，根据量化器模型，利用经调整的量化重新编码视频，该量化器模型将导致具有根据用户选择的计算的位数和质量的图像。

4. 发明授权

US06219043B1 Method and system to replace sections of an encoded video bitstream 有权
标题翻译：替代编码视频比特流的部分的方法和系统
公开(公告)号：US06219043B1
公开(公告)日：2001-04-17
申请号：US09504780
申请日：2000-02-15
申请人： Jay Yogeshwar , Sheau-Bao Ng , Teiichi Ichikawa , Hiroaki Unno , Hideki Mimura , Tetsuya Kitamura , Christopher J. Cookson , Greg B. Thagard , Andrew Drusin Rosen
发明人： Jay Yogeshwar , Sheau-Bao Ng , Teiichi Ichikawa , Hiroaki Unno , Hideki Mimura , Tetsuya Kitamura , Christopher J. Cookson , Greg B. Thagard , Andrew Drusin Rosen
IPC分类号： G06F300
CPC分类号： G11B27/034 , G11B27/036 , G11B27/329 , G11B27/34 , G11B2220/2545 , G11B2220/2562
摘要： A method and system in which a section of a previously encoded digital bit stream is replaced with another section of encoded video. In order to remove a section of encoded video, it is necessary to determine the beginning and ending points of the encoded video in the digitally encoded bit stream. The addresses of the beginning and ending points of the encoded data cannot be simply looked up but are calculated by summing the bits consumed by each picture, the number of bits of the sequence header of each picture, the number of bits of each Group of Pictures (GOP) header, and all stuff bits. In order to encode the video which is to be inserted in place of the removed video, a process is performed which prevents decoding artifacts from appearing. This is accomplished by determining the last P-picture before the edit point and using it as a reference frame for frames after the edit point. Additionally, a short period of the original video encoded using its original quantizer values is included at the end of the video to be substituted. Alternatively, the encoder may be run so that an earlier encoded reference picture is not used. However, this requires extra bits to maintain picture quality because initial bidirectional frames of the substitute video will use only one reference frame instead of two.
摘要翻译：一种方法和系统，其中先前编码的数字比特流的一部分被替换为编码视频的另一部分。为了去除编码视频的一部分，需要确定数字编码比特流中编码视频的开始点和结束点。编码数据的开始点和结束点的地址不能简单地查找，而是通过对每个图像消耗的比特，每个图像的序列标题的比特数，每个图像组的比特数进行求和来计算（GOP）头，以及所有填充位。为了对要插入的视频进行编码以取代所删除的视频，执行防止解码伪影出现的处理。这是通过在编辑点之前确定最后一个P图像并将其用作编辑点之后的帧的参考帧来实现的。此外，使用其原始量化器值编码的原始视频的短周期被包括在要被替代的视频的结尾处。或者，可以运行编码器，使得不使用较早编码的参考图像。然而，这需要额外的比特来保持图像质量，因为替代视频的初始双向帧将仅使用一个参考帧而不是两个参考帧。

5. 发明授权

US06026232A Method and system to replace sections of an encoded video bitstream 失效
标题翻译：替代编码视频比特流的部分的方法和系统
公开(公告)号：US06026232A
公开(公告)日：2000-02-15
申请号：US502012
申请日：1995-07-13
申请人： Jay Yogeshwar , Sheau-Bao Ng , Teiichi Ichikawa , Hiroaki Unno , Hideki Mimura , Tetsuya Kitamura , Christopher J. Cookson , Greg B. Thagard , Andrew Drusin Rosen
发明人： Jay Yogeshwar , Sheau-Bao Ng , Teiichi Ichikawa , Hiroaki Unno , Hideki Mimura , Tetsuya Kitamura , Christopher J. Cookson , Greg B. Thagard , Andrew Drusin Rosen
IPC分类号： H04N5/765 , G11B20/10 , G11B20/12 , G11B27/02 , G11B27/034 , G11B27/036 , G11B27/32 , G11B27/34 , G11B27/36 , H03M7/30 , H04N5/781 , H04N5/84 , H04N5/91 , H04N5/92 , H04N5/93 , H04N7/32 , G06F17/30
CPC分类号： G11B27/034 , G11B27/329 , G11B27/34 , G11B2220/2545 , G11B2220/2562 , G11B27/036
摘要： A method and system in which a section of a previously encoded digital bit stream is replaced with another section of encoded video. In order to remove a section of encoded video, it is necessary to determine the beginning and ending points of the encoded video in the digitally encoded bit stream. The addresses of the beginning and ending points of the encoded data cannot be simply looked up but are calculated by summing the bits consumed by each picture, the number of bits of the sequence header of each picture, the number of bits of each Group of Pictures (GOP) header, and all stuff bits. In order to encode the video which is to be inserted in place of the removed video, a process is performed which prevents decoding artifacts from appearing. This is accomplished by determining the last P-picture before the edit point and using it as a reference frame for frames after the edit point. Additionally, a short period of the original video encoded using its original quantizer values is included at the end of the video to be substituted. Alternatively, the encoder may be run so that an earlier encoded reference picture is not used. However, this requires extra bits to maintain picture quality because initial bidirectional frames of the substitute video will use only one reference frame instead of two.
摘要翻译：一种方法和系统，其中先前编码的数字比特流的一部分被替换为编码视频的另一部分。为了去除编码视频的一部分，需要确定数字编码比特流中编码视频的开始点和结束点。编码数据的开始点和结束点的地址不能简单地查找，而是通过对每个图像消耗的比特，每个图像的序列标题的比特数，每个图像组的比特数进行求和来计算（GOP）头，以及所有填充位。为了对要插入的视频进行编码以取代所删除的视频，执行防止解码伪影出现的处理。这是通过在编辑点之前确定最后一个P图像并将其用作编辑点之后的帧的参考帧来实现的。此外，使用其原始量化器值编码的原始视频的短周期被包括在要被替代的视频的结尾处。或者，可以运行编码器，使得不使用较早编码的参考图像。然而，这需要额外的比特来保持图像质量，因为替代视频的初始双向帧将仅使用一个参考帧而不是两个参考帧。

6. 发明授权

US5623424A Rate-controlled digital video editing method and system which controls bit allocation of a video encoder by varying quantization levels 失效
标题翻译：速率控制的数字视频编辑方法和系统，其通过改变量化级别来控制视频编码器的比特分配
公开(公告)号：US5623424A
公开(公告)日：1997-04-22
申请号：US466766
申请日：1995-06-06
申请人： Faramarz Azadegan , Tomoo Yamakage , Shin-ichiro Koto , Hiroaki Unno , Hideki Mimura , Tetsuya Kitamura , Christopher J. Cookson , Greg B. Thagard , Andrew D. Rosen
发明人： Faramarz Azadegan , Tomoo Yamakage , Shin-ichiro Koto , Hiroaki Unno , Hideki Mimura , Tetsuya Kitamura , Christopher J. Cookson , Greg B. Thagard , Andrew D. Rosen
IPC分类号： H04N5/92 , G06T9/00 , G11B20/10 , G11B27/02 , G11B27/031 , G11B27/034 , G11B27/30 , G11B27/32 , G11B27/34 , G11B27/36 , H04N5/926 , H04N7/26 , H04N7/30 , H04N7/36 , H04N7/50 , H04N7/52 , H04N9/804 , H04N9/806 , G06F17/00
CPC分类号： H04N9/8063 , G11B27/031 , G11B27/034 , G11B27/34 , G11B27/36 , H04N19/115 , H04N19/124 , H04N19/15 , H04N19/154 , H04N19/157 , H04N19/159 , H04N19/162 , H04N19/17 , H04N19/172 , H04N19/192 , H04N19/503 , H04N19/60 , H04N19/61 , H04N5/9262 , H04N7/52 , H04N9/8042 , G11B2220/2562 , G11B2220/90 , G11B2220/913 , G11B27/3027 , G11B27/329 , H04N19/146 , H04N19/30
摘要： A method and system for re-encoding frames of a digital video stream in which selected areas are designated to have increased or reduced image quality, i.e., decreased or increased quantization levels, respectively, as compared to a previously run automatic encoding process, but without changing the previously calculated bit length of the stream. A set of macroblocks at a time are re-encoded, the number of resulting bits is calculated and the deviation from an estimated number of bits is calculated, either set-by-set or cumulatively. Based on the accuracy of the estimate and the remaining number of sets of macroblocks to re-encode, a correction factor for the quantization level of the next set of macroblocks is chosen from a lookup table. The correction factor is added to the quantization level of the next set of macroblocks and the results stored as the new quantization level of the set. This sequential process is done for all sets of macroblocks in the digital stream which are to be recoded according to changed image qualities.
摘要翻译：一种用于重新编码数字视频流的帧的方法和系统，其中与先前运行的自动编码过程相比，所选区域被指定为分别具有增加或降低的图像质量，即分别减小或增加的量化级别，但是没有改变以前计算的流的位长度。一次重新编码一组宏块，计算所得到的比特数，并计算与估计的比特数的偏差，即逐个设置或累加。基于估计的准确性和重新编码的宏块的剩余数量，从查找表中选择下一组宏块的量化级的校正因子。校正因子被添加到下一组宏块的量化级，并且将结果存储为该组的新量化级。对于将根据改变的图像质量重新编码的数字流中的所有宏块集合来完成该顺序处理。

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