公开(公告)号：US07375763B2

公开(公告)日：2008-05-20

申请号：US10925884

申请日：2004-08-24

Applicant: Daniele Alfonso ,  Danilo Pau ,  Elio Privitera ,  Angelo Schiavone

Inventor： Daniele Alfonso ,  Danilo Pau ,  Elio Privitera ,  Angelo Schiavone

IPC: H04N7/01 ,  H04N11/20 ,  H04N5/14 ,  H04N5/16 ,  H04N9/64

CPC classification number: H04N7/014 ,  H04N7/012 ,  H04N7/0142

Abstract: To carry out de-interlacing of digital images there is provided a spatial-type de-interlacing process to be applied to a digital image for obtaining a spatial reconstruction. Furthermore, to the digital image there are also applied one or more temporal-type de-interlacing processes for obtaining one or more temporal reconstructions, and the spatial reconstruction and the one or more temporal reconstructions are sent to a decision module. The decision module applies a cost function to the spatial reconstruction and the temporal reconstructions and chooses from among the spatial reconstruction and the temporal reconstructions the one that minimizes the cost function. Preferential application is to display systems, in particular displays of a cathode-ray type, liquid-crystal type, and plasma type which use a mechanism of progressive scan.

Abstract translation: 为了执行数字图像的去隔行，提供了一种应用于数字图像以获得空间重建的空间类型去隔行处理。 此外，对于数字图像，还应用一个或多个时间型去隔行处理来获得一个或多个时间重建，并且空间重建和一个或多个时间重建被发送到决策模块。 决策模块将成本函数应用于空间重建和时间重建，并从空间重建和时间重建中选择最小化成本函数的重建。 优选应用是显示系统，特别是使用逐行扫描机制的阴极射线型，液晶型和等离子型显示器。

公开(公告)号：US20080063375A1

公开(公告)日：2008-03-13

申请号：US11983602

申请日：2007-11-09

Applicant: Giorgio Betti ,  Angelo Dati ,  Viviana D'Alto ,  Danilo Pau ,  Filippo Santinello

Inventor： Giorgio Betti ,  Angelo Dati ,  Viviana D'Alto ,  Danilo Pau ,  Filippo Santinello

IPC: H04N7/26

CPC classification number: H04N19/00266 ,  H04N19/157 ,  H04N19/172 ,  H04N19/61

Abstract: A method of storing a data file, particularly in the MPEG format and including a flow of different frames, comprises a protection system for the data file based on a parameter stored in the data file. Advantageously, the storage method comprises selectively protecting the frames by storing parameters that are associated with corresponding different frames whose values are selected to provide a playing quality level requested by an end user. Also, a method is provided for decoding a data file, particularly of the MPEG type and including a flow of different frames, wherein the data file is stored per above.

Abstract translation: 特别是以MPEG格式存储并包括不同帧流的数据文件的方法包括基于存储在数据文件中的参数的数据文件的保护系统。 有利地，存储方法包括通过存储与其值被选择的相应不同帧相关联的参数来选择性地保护帧，以提供终端用户请求的播放质量等级。 此外，提供了一种用于对数据文件进行解码的方法，特别是MPEG类型的数据文件，并且包括不同帧的流程，其中数据文件存储在上面。

公开(公告)号：US20070071312A1

公开(公告)日：2007-03-29

申请号：US11526146

申请日：2006-09-21

Applicant: Pierluigi Gardella ,  Massimiliano Barone ,  Edoardo Gallizio ,  Danilo Pau

Inventor： Pierluigi Gardella ,  Massimiliano Barone ,  Edoardo Gallizio ,  Danilo Pau

IPC: G06K9/00 ,  G06K9/40

CPC classification number: G06T11/40

Abstract: A system renders a primitive of an image to be displayed, for instance in a mobile 3D graphic pipeline, the primitive including a set of pixels. The system locates the pixels in the area of the primitive, generates, for each pixel located in the area, a set of associated sub-pixels, borrows a set of sub-pixels from neighboring pixels, subjects the set of associated sub-pixels and the borrowed set of pixels to adaptive filtering to create an adaptively filtered set of sub-pixels, and further filters the adaptively filtered set of sub-pixels to compute a final pixel for display. Preferably, the set of associated sub-pixels fulfils at least one of the following: the set includes two associated sub-pixels and the set includes associated sub-pixels placed on triangle edges.

Abstract translation: 系统呈现要显示的图像的原语，例如在移动3D图形流水线中，该图元包括一组像素。 系统定位基元区域中的像素，为位于该区域中的每个像素产生一组相关联的子像素，从相邻像素借用一组子像素，对该组相关联的子像素进行对象，以及 将借用的像素集合进行自适应滤波以创建自适应滤波的子像素组，并且进一步对自适应滤波的子像素组进行滤波以计算用于显示的最终像素。 优选地，该组相关联的子像素满足以下中的至少一个：该集合包括两个相关联的子像素，并且该集合包括放置在三角形边缘上的相关联的子像素。

公开(公告)号：US07010041B2

公开(公告)日：2006-03-07

申请号：US10072818

申请日：2002-02-08

Applicant: Andrea Graziani ,  Luca Celetto ,  Daniele Alfonso ,  Fabrizio Basso ,  Alessandro Cremonesi ,  Danilo Pau

Inventor： Andrea Graziani ,  Luca Celetto ,  Daniele Alfonso ,  Fabrizio Basso ,  Alessandro Cremonesi ,  Danilo Pau

IPC: H04N7/12

CPC classification number: H04N19/40 ,  H04N19/90

Abstract: In order to generate, starting from an input MPEG bitstream, an output MPEG bitstream having at least one entity chosen among syntax, resolution, and bitrate modified with respect to the input bitstream, first portions and second portions are distinguished in the input bitstream, which respectively substantially do not affect and do affect the variation in bitrate. When at least one between the syntax and the resolution is to be modified, the first portions of the input bitstream are subjected to the required translation, then transferring said first portions subjected to syntax and/or resolution translation to the output bitstream. When the resolution is left unaltered, the second portions are transferred from the input bitstream to the output bitstream in the substantial absence of processing operations. When the resolution is changed, the second portions of the input bitstream are subjected to a filtering in the domain of the discrete cosine transform.

公开(公告)号：US06988114B2

公开(公告)日：2006-01-17

申请号：US10044302

申请日：2002-01-10

Applicant: Daniele Sirtori ,  Danilo Pau

Inventor： Daniele Sirtori ,  Danilo Pau

IPC: G06F5/00

CPC classification number: H03M7/30 ,  H04N19/00

Abstract: A process for converting signals in the form of digital data, such as various types of video/audio/data signals for example, between an original format, in which each data item includes a certain number of digits, and a compressed format, in which each data item includes a smaller number of digits. The process includes the operation of associating the data with a configuration including: a first field identifying the number of sub-blocks into which the said certain number of digits are subdivided, a second field that identifies, within the said sub-blocks, respective sections, each one including a given number of digits, and a third field that identifies, for each these sections, one of a plurality of applicable modes (average, compression, transmission “as is”, etc.) that can be adopted for converting the digits in the section between the original format and the compressed format.

公开(公告)号：US20050179814A1

公开(公告)日：2005-08-18

申请号：US11041518

申请日：2005-01-21

Applicant: Danilo Pau ,  Emiliano Piccinelli ,  Fabrizio Rovati ,  Daniele Alfonso ,  Elio Privitera ,  Angelo Schiavone

Inventor： Danilo Pau ,  Emiliano Piccinelli ,  Fabrizio Rovati ,  Daniele Alfonso ,  Elio Privitera ,  Angelo Schiavone

IPC: H04N5/14 ,  H04N5/44 ,  H04N7/01 ,  H04N7/26 ,  H04N11/20

CPC classification number: H04N5/4448 ,  H04N5/145 ,  H04N5/4401 ,  H04N7/012 ,  H04N7/014 ,  H04N7/0142 ,  H04N19/51 ,  H04N19/56 ,  H04N21/4122 ,  H04N21/44008 ,  H04N21/4402

Abstract: A spatial-type de-interlacing process to be applied to a digital image for obtaining a spatial reconstruction. Furthermore, to the digital image there are also applied one or more temporal-type motion compensation de-interlacing processes for obtaining one or more temporal reconstructions, and the spatial reconstruction and the one or more temporal reconstructions are sent to a decision module. The decision module applies a cost function to the spatial reconstruction and the temporal reconstructions and chooses from among the spatial reconstruction and the temporal reconstructions the one that minimizes the cost function. Preferential application is to display systems, in particular displays of a cathode-ray type, liquid-crystal type, and plasma type which use a mechanism of progressive scan.

Abstract translation: 要应用于数字图像以获得空间重建的空间型去隔行处理。 此外，对于数字图像，还应用一个或多个时间型运动补偿去隔行处理来获得一个或多个时间重建，并且将空间重建和一个或多个时间重建发送到决策模块。 决策模块将成本函数应用于空间重建和时间重建，并从空间重建和时间重建中选择最小化成本函数的重建。 优选应用是显示系统，特别是使用逐行扫描机制的阴极射线型，液晶型和等离子型显示器。

公开(公告)号：US06829373B2

公开(公告)日：2004-12-07

申请号：US09811351

申请日：2001-03-16

Applicant: Emiliano Piccinelli ,  Fabrizio Rovati ,  Danilo Pau

Inventor： Emiliano Piccinelli ,  Fabrizio Rovati ,  Danilo Pau

IPC: G06K900

CPC classification number: H04N19/57 ,  H04N19/137 ,  H04N19/51

Abstract: A method of estimating the motion field of a digital picture sequence includes subdividing a current picture to examine in an integer number of macroblocks, for each macroblock of the current picture determining a search window centered on a macroblock of a preceding picture placed in the same position of the considered macroblock of the current picture, carrying out a motion estimation between the considered macroblock of the current picture and the macroblock most similar to it included in the window. At least a dimension of the search window is established as a function of the corresponding dimension of the search window used for the preceding picture, the estimated motion field of the preceding picture and certain threshold values.

Abstract translation: 估计数字图像序列的运动场的方法包括：对当前图像的每个宏块进行细分，以检查整数个宏块，该宏块确定以位于相同位置的先前图像的宏块为中心的搜索窗口 当前图片的所考虑的宏块，执行当前图片的所考虑的宏块与包括在窗口中最类似的宏块之间的运动估计。 根据用于前一图像的搜索窗口的相应尺寸，前一图像的估计运动场和某些阈值，建立至少搜索窗口的维度。

公开(公告)号：US06556718B1

公开(公告)日：2003-04-29

申请号：US09438853

申请日：1999-11-12

Applicant: Emiliano Piccinelli ,  Luca Pezzoni ,  Danilo Pau

Inventor： Emiliano Piccinelli ,  Luca Pezzoni ,  Danilo Pau

IPC: G06K936

CPC classification number: H04N19/18 ,  H04N19/107 ,  H04N19/112 ,  H04N19/124 ,  H04N19/137 ,  H04N19/139 ,  H04N19/14 ,  H04N19/149 ,  H04N19/152 ,  H04N19/159 ,  H04N19/172 ,  H04N19/176 ,  H04N19/61

Abstract: A method for coding video data according to the MPEG-2 standard is provided. Non-Intra fields are identified among Intra fields and various coding options exist for the non-Intra fields, including removal of temporal redundancy using a motion estimation algorithm and identification of predictor macroblocks for providing approximation according to a prediction mode selectable among respective predicting modes of the different types of non-Intra fields. The method includes calculating a discrete cosine transform (DCT) for blocks of data of the predictor macroblocks according to a frame mode of decomposition with the blocks being composed of lines of data belonging to even lines semifield and to odd lines semifield, or in a field mode of decomposition with the blocks being composed of lines of data belonging to the same semifield. The data resulting from the DCT carried out by blocks of data to be stored is quantized and coded. The efficiency of the method for coding video data according to the MPEG-2-standard is increased by selecting between field or frame modes and motion compensation or no motion compensation with an algorithm that assesses and compares significant complexity indexes of the macroblocks.

Abstract translation: 提供了一种根据MPEG-2标准编码视频数据的方法。 非Intra域被识别在Intra域中，并且对于非Intra域存在各种编码选项，包括使用运动估计算法去除时间冗余，以及根据在各个预测模式之间可选择的预测模式来提供预测宏块的识别 不同类型的非Intra域。 该方法包括根据分解的帧模式来计算预测器宏块的数据块的离散余弦变换（DCT），其中块由属于偶数行半场的数据线和奇数行半场的数据组构成 模块的分解模式由属于同一半场的数据线构成。 对由要存储的数据块执行的DCT产生的数据进行量化和编码。 根据MPEG-2-标准对视频数据进行编码的方法的效率通过使用评估和比较宏块的重要复杂度指标的算法来选择场或帧模式和运动补偿或不进行运动补偿来增加。

公开(公告)号：US5986711A

公开(公告)日：1999-11-16

申请号：US880260

申请日：1997-06-23

Applicant: Danilo Pau

Inventor： Danilo Pau

IPC: H04N5/907 ,  H04N5/92 ,  H04N7/26 ,  H04N7/32 ,  H04N7/50 ,  H04N7/12 ,  G06K9/40

CPC classification number: H04N19/428 ,  H04N19/423 ,  H04N19/61

Abstract: The video memory requisite of an MPEG decoder effecting a decompression of the I, P and optionally also of the B picture according to the MPEG compression algorithm and requiring the storing in respective buffers organized in said video memory of the respective MPEG-decompressed data, may be dynamically reduced by subsampling and recompressing according to a ADPCM algorithm of at least the data pertaining to the I and P pictures before coding and storing them in the respective buffers. Subsequently, the stored data are decoded, decompressed and upsampled for reconstructing blocks of pels to be sent to a macroblock-to-raster scan conversion circuit.

Abstract translation: MPEG解码器根据MPEG压缩算法实现对I，P的解压缩以及可选的B画面的视频存储，并且需要存储在各个MPEG解压缩数据的所述视频存储器中的各个缓冲器中， 根据至少与I图像和P图像相关的数据的ADPCM算法，通过子采样和再压缩来进行动态缩减，然后再编码并将它们存储在各个缓冲器中。 随后，对存储的数据进行解码，解压缩和上采样，以重建要发送到宏块到光栅扫描转换电路的像素块。

公开(公告)号：US5838597A

公开(公告)日：1998-11-17

申请号：US758805

申请日：1996-12-03

Applicant: Danilo Pau ,  Roberto Sannino

Inventor： Danilo Pau ,  Roberto Sannino

IPC: H04N5/455 ,  G06T9/00 ,  H03M7/38 ,  H04N7/26 ,  H04N7/30 ,  H04N7/34 ,  H04N7/50 ,  G06F17/00

CPC classification number: H04N19/428 ,  H04N19/42 ,  H04N19/423 ,  H04N19/593 ,  H04N19/61

Abstract: The video RAM requisite of an MPEG-2 decoder is reduced by recompressing according to an adaptive pulse code modulation scheme (ADPCM) at least the I and P pictures, after MPEG-2 decompression and before storing the relative data in the video RAM. The ADPCM recompressed and coded data written in the video RAM are decoded and decompressed during the reconstruction of a B-picture to be displayed.

Abstract translation: 至少在MPEG-2解压缩之后并且将相对数据存储在视频RAM中之前，根据至少I图像和P图像的自适应脉码调制方案（ADPCM）对MPEG-2解码器的视频RAM要求进行减小。 写入到视频RAM中的ADPCM再压缩和编码数据在重建待显示的B图像期间被解码和解压缩。