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102 条记录 (耗时 0.021 秒)

    Motion picture coder and system for controlling the same
    1.
    发明授权
    Motion picture coder and system for controlling the same 失效
    电影编码器和控制系统

    公开(公告)号：US5394189A

    公开(公告)日：1995-02-28

    申请号：US10623

    申请日：1993-01-28

    申请人： Masato Motomura ,  Tadayoshi Enomoto

    发明人： Masato Motomura ,  Tadayoshi Enomoto

    IPC分类号： G06F9/38 ,  G06T1/20 ,  G06T9/00 ,  H04N19/43 ,  H04N19/436 ,  H04N19/50 ,  H04N19/503 ,  H04N19/51 ,  H04N19/61 ,  H04N19/625 ,  H04N19/82 ,  H04N7/133 ,  H04N7/137

    CPC分类号： H04N19/42 ,  H04N19/61

    摘要： A motion picture coder for coding plural macro blocks of motion picture data based on a standardizing system is disclosed. The coder comprises first and second pipe-lined processors executing different coding processes respectively, both of which are separated from one another so as to accomplish a parallel operation thereof. The first processor executes a motion vector detection for a second macro block, an inter-frame addition for a first macro block and an inter-frame difference for the first macro block. The second processor executes a discrete cosine transform for the first macro block, a quantization for the first macro block, an inverse quantization for the first macro block, an inverse discrete cosine transform for the first macro block and a loop filtering for the second macro block. The motion vector detection and the discrete cosine transform are concurrently processed and the inter-frame addition and the loop filtering are concurrently processed, thereby the processing times for each macro block are shortened and thus a high speed processing is realized.

    摘要翻译： 公开了一种用于基于标准化系统对运动图像数据的多个宏块进行编码的运动图像编码器。 编码器包括分别执行不同编码处理的第一和第二管道衬底处理器，它们彼此分离，以便实现其并行操作。 第一处理器执行第二宏块的运动矢量检测，第一宏块的帧间相加和第一宏块的帧间差。 第二处理器执行第一宏块的离散余弦变换，第一宏块的量化，第一宏块的逆量化，第一宏块的反离散余弦变换和第二宏块的循环滤波 。 同时处理运动矢量检测和离散余弦变换，同时处理帧间相加和环路滤波，从而缩短每个宏块的处理时间，从而实现高速处理。

    Apparatus for processing image motion compensation information for an image processing system
    3.
    发明授权
    Apparatus for processing image motion compensation information for an image processing system 失效
    用于处理图像处理系统的图像运动补偿信息的装置

    公开(公告)号：US5369438A

    公开(公告)日：1994-11-29

    申请号：US62192

    申请日：1993-05-17

    申请人： Si J. Kim

    发明人： Si J. Kim

    IPC分类号： H04N7/26 ,  H04N7/30 ,  H04N7/50 ,  H04N7/133 ,  H04N7/137

    CPC分类号： H04N19/126 ,  H04N19/60 ,  H04N19/61 ,  H04N19/124

    摘要： An apparatus for processing image motion compensation information for an image processing system, which can add image motion compensation information and assign the bit number suitable for a specific data size required in signal processing added data with a simple structure. The apparatus includes an adding section for adding an inputted difference data per block and a data previously stored in a frame memory, an overflow/underflow checking section for checking overflow/underflow of summed data and reducing the bit size of the added data, and an overflow/underflow executing section for output-controlling the added data according to the checked overflow/underflow.

    摘要翻译： 一种用于处理图像处理系统的图像运动补偿信息的装置，其可以添加图像运动补偿信息并且以简单的结构分配适合信号处理相加数据所需的特定数据大小的比特数。 该装置包括用于将每个块输入的差异数据和先前存储在帧存储器中的数据相加的加法部分，用于检查求和数据的上溢/下溢并减少所添加数据的位大小的溢出/下溢检查部分， 溢出/下溢执行部分，用于根据检查的溢出/下溢来输出控制添加的数据。

    Information recording/reproducing apparatus
    6.
    发明授权
    Information recording/reproducing apparatus 失效
    信息记录/重放装置

    公开(公告)号：US5329375A

    公开(公告)日：1994-07-12

    申请号：US840755

    申请日：1992-02-24

    申请人： Tatsuro Juri ,  Masaru Nakahama

    发明人： Tatsuro Juri ,  Masaru Nakahama

    IPC分类号： G11B20/12 ,  H04N9/804 ,  H04N19/89 ,  H04N7/133

    CPC分类号： H04N9/8047 ,  H04N19/37 ,  H04N19/89 ,  H04N9/804

    摘要： In the recording apparatus and reproducing apparatus employing variable length coding, a formatting which prevents propagation of error due to transmission route error is realized. The input quantized value is coded in variable length and recorded in a first memory. The variable length code words recorded in the first memory are read out and formatted, and recorded into a second memory. In reproduction, the quantized value is decoded in the reverse sequence. By executing variable length coding and formatting in a pipeline operation by using two memories, high speed input signals such as moving picture signals can be formatted. Components of the recording apparatus and reproducing apparatus can be shared, and the circuit scale may be effectively reduced.

    摘要翻译： 在采用可变长度编码的记录装置和再现装置中，实现了防止由于传输路由错误导致的误差传播的格式化。 输入量化值以可变长度编码并记录在第一存储器中。 记录在第一存储器中的可变长度码字读出并格式化，并记录到第二存储器中。 在再现中，量化值以相反的顺序解码。 通过使用两个存储器在流水线操作中执行可变长度编码和格式化，可以格式化诸如运动图像信号的高速输入信号。 可以共享记录装置和再现装置的组件，并且可以有效地减小电路规模。

    Decoding apparatus of a compressed digital video signal
    7.
    发明授权
    Decoding apparatus of a compressed digital video signal 失效
    压缩数字视频信号的解码装置

    公开(公告)号：US5291283A

    公开(公告)日：1994-03-01

    申请号：US915527

    申请日：1992-07-20

    申请人： Tetsujiro Kondo ,  Yasuhiro Fujimori ,  Akemi Noda

    发明人： Tetsujiro Kondo ,  Yasuhiro Fujimori ,  Akemi Noda

    IPC分类号： G06T9/00 ,  H04N5/926 ,  H04N7/26 ,  H04N7/50 ,  H04N7/130 ,  H04N7/133

    CPC分类号： H04N5/9264 ,  H04N19/107 ,  H04N19/61 ,  H04N5/9262

    摘要： Encoded picture data or encoded difference data is decoded by an intraframe decoder. To an adder, zero data is given through a switching circuit at the time of the decoding of intraframe coded data, and when interframe coded data, i.e., difference data is decoded, a decoded value of a previous frame is supplied through the switching circuit. By the adder, the decoded value of the previous frame and the decoded difference value are added to allow the decoding of interframe coding.

    摘要翻译： 编码图像数据或编码差分数据由帧内解码器解码。 对于加法器，在解码帧内编码数据时通过切换电路给出零数据，并且当帧间编码数据即差分数据被解码时，通过切换电路提供先前帧的解码值。 通过加法器，相加前一帧的解码值和解码的差分值，以允许帧间编码的解码。

    Efficient frequency scalable video decoding with coefficient selection
    8.
    发明授权
    Efficient frequency scalable video decoding with coefficient selection 失效
    高效率可缩放视频解码与系数选择

    公开(公告)号：US5278646A

    公开(公告)日：1994-01-11

    申请号：US32582

    申请日：1993-03-17

    申请人： Mehmet R. Civanlar ,  Atul Puri

    发明人： Mehmet R. Civanlar ,  Atul Puri

    IPC分类号： H04N1/41 ,  G06T9/00 ,  H04N7/60 ,  H04N19/60 ,  H04N21/236 ,  H04N21/434 ,  H04N7/133

    CPC分类号： H04N21/236 ,  H04N19/37 ,  H04N21/434 ,  H04N19/124 ,  H04N19/13 ,  H04N19/132 ,  H04N19/30 ,  H04N19/60 ,  H04N19/91

    摘要： An improved technique for decoding wherein the number of coefficients to be included in each sub-block is selectable, and a code indicating the number of coefficients within each layer is inserted in the bitstream at the beginning of each encoded video sequence. This technique allows the original runs of zero coefficients in the highest resolution layer to remain intact by forming a sub-block for each scale from a selected number of coefficients along a continuous scan. These sub-blocks may be decoded in a standard fashion, with an inverse discrete cosine transform applied to square sub-blocks obtained by the appropriate zero padding of and/or discarding of excess coefficients from each of the scales. This technique further improves decoding efficiency by allowing an implicit end of block signal to separate blocks, making it unnecessary to decode an explicit end of block signal in most cases.

    摘要翻译： 一种用于解码的改进技术，其中要包括在每个子块中的系数的数量是可选择的，并且在每个编码的视频序列的开始处将指示每层内的系数数的代码插入比特流中。 该技术允许通过沿着连续扫描从选定数量的系数中为每个标度形成子块，使最高分辨率层中的零系数的原始运行保持不变。 可以以标准方式对这些子块进行解码，其中将逆离散余弦变换应用于通过从每个标度的适当的零填充和/或丢弃过量系数获得的平方子块。 该技术通过允许块信号的隐式结束来分离块来进一步提高解码效率，使得在大多数情况下不需要解码块信号的显式结束。