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    Method for combined transformation of the scale and aspect ratio of a picture
    2.
    发明授权
    Method for combined transformation of the scale and aspect ratio of a picture 有权

    公开(公告)号：US10089954B2

    公开(公告)日：2018-10-02

    申请号：US15659449

    申请日：2017-07-25

    Applicant: STMicroelectronics (Grenoble 2) SAS

    Inventor： Marina Nicolas

    IPC: G09G5/00 ,  G06T3/00 ,  G06T3/40

    Abstract: A source image is transformed into a destination image having a target aspect ratio. A reference region in the source image is defined. An extended region of interest of the source image having the target aspect ratio and containing the reference region is defined. A set of candidate image regions of increasing resolutions from the extended region of interest is determined, each having the target aspect ratio and containing the reference region. Candidate image regions are scaled to form a candidate target images. A quality metric is used to select a target image providing the best quality metric value.

    SYSTEM AND METHOD FOR ESTIMATING THE DIRECTION OF A MOVEMENT IN VIDEO IMAGES
    4.
    发明公开
    SYSTEM AND METHOD FOR ESTIMATING THE DIRECTION OF A MOVEMENT IN VIDEO IMAGES 审中-公开

    公开(公告)号：US20240193795A1

    公开(公告)日：2024-06-13

    申请号：US18535429

    申请日：2023-12-11

    Applicant: STMicroelectronics (Grenoble 2) SAS

    Inventor： Marina Nicolas

    IPC: G06T7/246 ,  G06T7/12 ,  G06T7/136 ,  G06T7/215

    CPC classification number: G06T7/248 ,  G06T7/12 ,  G06T7/136 ,  G06T7/215 ,  G06T2207/10016 ,  G06V20/41

    Abstract: The present description concerns a system and method of determining at least one classifier of a general movement along a first direction in video images of a scene, comprising determining a differential image based on two video images, selecting pixels of the differential image corresponding to edges of objects, determining, for each selected pixel, at least one classifier of a local movement along the first direction at least at a first or second value, determining a first indicator of the local movement along the first direction, which depends on the sum of the local movement classifiers at the first value and a second indicator of the local movement along the first direction, which depends on the sum of the local movement classifiers at the second value, and determining the general movement classifier based on the comparison of the first and second local movement indicators.

    Compression and decompression of video data
    5.
    发明授权
    Compression and decompression of video data 有权

    公开(公告)号：US10531128B2

    公开(公告)日：2020-01-07

    申请号：US15223221

    申请日：2016-07-29

    Applicant: STMICROELECTRONICS (GRENOBLE 2) SAS

    Inventor： Marina Nicolas

    IPC: H04N19/895 ,  H04N19/48

    Abstract: A method for compressing a data block including sets of homologous components may include selecting a designated component from the data block, and compressing non-designated components with a measurable loss less than or equal to a threshold. The method may further include compressing the designated component based upon at least a selection of values from among the values of the homologous designated components associated with the data of the block.

    METHOD FOR SELECTING A PIXEL POSITIONING SOLUTION TO OBTAIN AN OPTIMAL VISUAL RENDITION OF AN IMAGE
    6.
    发明申请
    METHOD FOR SELECTING A PIXEL POSITIONING SOLUTION TO OBTAIN AN OPTIMAL VISUAL RENDITION OF AN IMAGE 有权
    选择像素定位解决方案以获得图像的最佳视觉欣赏的方法

    公开(公告)号：US20160249061A1

    公开(公告)日：2016-08-25

    申请号：US14877761

    申请日：2015-10-07

    Applicant: STMicroelectronics (Grenoble 2) SAS

    Inventor： Marina Nicolas

    IPC: H04N19/186 ,  H04N19/176 ,  H04N19/154

    CPC classification number: H04N19/186 ,  H04N19/154 ,  H04N19/176 ,  H04N19/187 ,  H04N19/46 ,  H04N19/593 ,  H04N19/82 ,  H04N19/86 ,  H04N19/88

    Abstract: An image processing method, implemented in a calculator, includes applying a process by group of pixels to an original image. For each group of pixels, calculating a cumulative sum of value or position differences of the pixels of the group of pixels, and for each group of pixels, allocating in a final image signal a pixel position of the group of pixels to each pixel value of the group of pixels so as to minimize the cumulative sum of differences calculated for the group of pixels according to the differences calculated. For each group of pixels, determining a filtering intensity according to the cumulative sum of differences calculated for the group of pixels, and applying to the group of pixels a filtering having the filtering intensity.

    Abstract translation: 在计算器中实现的图像处理方法包括：将一组像素应用于原始图像。 对于每个像素组，计算像素组的像素的值或位置差的累积和，并且对于每个像素组，将最终图像信号中的像素组的像素位置分配给每个像素值 像素组，以便根据所计算的差异来最小化针对像素组计算的差的累积和。 对于每个像素组，根据针对像素组计算的差的累积和来确定滤波强度，以及将具有滤波强度的滤波应用于像素组。

    DETECTION AND CORRECTION OF ARTEFACTS IN IMAGES OR VIDEO
    9.
    发明申请
    DETECTION AND CORRECTION OF ARTEFACTS IN IMAGES OR VIDEO 有权
    图像或视频中的ARTEFACTS的检测和校正

    公开(公告)号：US20160098822A1

    公开(公告)日：2016-04-07

    申请号：US14863993

    申请日：2015-09-24

    Applicant: STMicroelectronics (Grenoble 2) SAS

    Inventor： Marina Nicolas

    IPC: G06T5/00

    CPC classification number: G06T5/002 ,  G06T7/0002 ,  G06T2207/10004 ,  G06T2207/10016 ,  G06T2207/20004 ,  G06T2207/20021 ,  G06T2207/20076 ,  G06T2207/20172 ,  G06T2207/30168 ,  H04N19/117 ,  H04N19/14 ,  H04N19/176 ,  H04N19/86

    Abstract: A method involving: detecting in an image a first type of artefact (A1) to generate a first artefact value (GA1) and a first confidence level (CA1); detecting in the image a second type of artefact (A2) to generate a second artefact value (GA2) and a second confidence level (CA2); and performing correction of the first type of artefact (A1) in the image based on the first and second artefact values (GA1, GA2) and the relative values of the first and second confidence levels (CA1, CA2).

    Abstract translation: 一种方法，涉及：在图像中检测第一类型的人造物（A1）以产生第一伪影值（GA1）和第一置信水平（CA1）; 在图像中检测第二类型的人造物（A2）以产生第二伪影值（GA2）和第二置信水平（CA2）; 以及基于第一和第二假想值（GA1，GA2）以及第一和第二置信水平（CA1，CA2）的相对值来对图像中的第一类型的人造物（A1）进行校正。

    METHOD FOR COMBINED TRANSFORMATION OF THE SCALE AND ASPECT RATIO OF A PICTURE
    10.
    发明申请
    METHOD FOR COMBINED TRANSFORMATION OF THE SCALE AND ASPECT RATIO OF A PICTURE 有权
    用于组合转换图像的比例和比例的方法

    公开(公告)号：US20150213777A1

    公开(公告)日：2015-07-30

    申请号：US14607523

    申请日：2015-01-28

    Applicant: STMicroelectronics (Grenoble 2) SAS

    Inventor： Marina Nicolas

    IPC: G09G5/00 ,  G06T3/40

    CPC classification number: G09G5/005 ,  G06T3/0012 ,  G06T3/40 ,  G09G2340/0442

    Abstract: A source image is transformed into a destination image having a target aspect ratio. A reference region in the source image is defined. An extended region of interest of the source image having the target aspect ratio and containing the reference region is defined. A set of candidate image regions of increasing resolutions from the extended region of interest is determined, each having the target aspect ratio and containing the reference region. Candidate image regions are scaled to form a candidate target images. A quality metric is used to select a target image providing the best quality metric value.

    Abstract translation: 源图像被转换成具有目标纵横比的目标图像。 定义源图像中的参考区域。 定义具有目标纵横比并包含参考区域的源图像的扩展区域。 确定从感兴趣的扩展区域增加分辨率的一组候选图像区域，每一个具有目标纵横比并且包含参考区域。 缩放候选图像区域以形成候选目标图像。 使用质量度量来选择提供最佳质量度量值的目标图像。

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