公开(公告)号：US09704225B2

公开(公告)日：2017-07-11

申请号：US14920669

申请日：2015-10-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xinyu Du ,  Dong Wang

IPC: G06K9/40 ,  G06T5/00 ,  G06T5/20 ,  G06T5/40 ,  G06T7/90

CPC classification number: G06T5/003 ,  G06T5/007 ,  G06T5/20 ,  G06T5/40 ,  G06T7/90 ,  G06T2207/20192

Abstract: An image enhancement method calculates a central response value of a target pixel based on an original pixel value of the target pixel. The method includes calculating a first total suppression value of the target pixel, where the values of suppression to the target pixel from the neighborhood pixels refer to values representing suppression effects imposed by the neighborhood pixels on the target pixel. When the central response value is greater than the first total suppression value, the first total suppression value is subtracted from the central response value, and the difference is used as a pixel value of the target pixel after image enhancement. When the central response value is less than the first total suppression value, a value 0 is used as a pixel value of the target pixel after image enhancement.

公开(公告)号：US09659233B2

公开(公告)日：2017-05-23

申请号：US14581418

申请日：2014-12-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xinyu Du ,  Dong Wang ,  Zichen Gu ,  Daiyu Wei

IPC: G06K9/62 ,  G06K9/46 ,  G06K9/80 ,  G06K9/48 ,  G06K9/66

CPC classification number: G06K9/623 ,  G06K9/4623 ,  G06K9/4642 ,  G06K9/4652 ,  G06K9/481 ,  G06K9/6256 ,  G06K9/66 ,  G06K9/80 ,  G06T2207/10024 ,  G06T2207/20081 ,  G06T2207/20164

Abstract: The present invention provides a method and an apparatus for detecting a salient region of an image. Classification processing is obtained by means of pre-training, so as to obtain a classification label, where the classification label is used to indicate a salience detection algorithm for detecting a salient region of the test image. Salience detection is performed on the test image by using the salience detection algorithm indicated by the classification label, so as to obtain the salient region of the test image. Because a salience detection algorithm with the best detection effect is acquired by using the image feature vector of the test image, to detect the salient region of the test image, accuracy of salience detection is improved.

公开(公告)号：US09454701B2

公开(公告)日：2016-09-27

申请号：US14569681

申请日：2014-12-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yang Liu ,  Xinyu Du ,  Dong Wang

IPC: H04N9/80 ,  H04N5/93 ,  G11B27/00 ,  G06K9/00 ,  H04N21/8549 ,  G06F17/30 ,  G06T7/20 ,  G11B27/034 ,  H04N5/262 ,  H04N21/234

CPC classification number: G06K9/00711 ,  G06F17/30843 ,  G06K9/00771 ,  G06T7/20 ,  G06T2207/10016 ,  G06T2207/30232 ,  G11B27/034 ,  H04N5/2625 ,  H04N21/23418 ,  H04N21/8549

Abstract: Embodiments of the present invention provide a video synopsis method and apparatus, and relate to the field of video synopsis. The method includes: extracting moving objects and moving tracks of the moving objects from an original video; calculating a spatio-temporal redundancy between the extracted moving tracks, and determining a synopsis ratio of the moving tracks according to the spatio-temporal redundancy; and changing rates of the moving tracks according to the synopsis ratio of the moving tracks. In the present invention, the spatio-temporal redundancy between the moving tracks is analyzed, and synopsis and rate changing are performed on corresponding tracks according to the spatio-temporal redundancy obtained by means of analysis to obtain different representations of different tracks, thereby improving user experience.

Abstract translation: 本发明的实施例提供了视频概要方法和装置，并且涉及视频概要的领域。 该方法包括：从原始视频中提取移动物体和移动物体的轨迹; 计算所提取的运动轨迹之间的空间 - 时间冗余，以及根据空间 - 时间冗余度确定运动轨迹的概要比; 以及根据移动轨道的概要比率来改变移动轨道的速率。 在本发明中，分析了移动轨迹之间的空间 - 时间冗余，并根据通过分析获得的时空冗余在对应的轨道上执行概要和速率改变，以获得不同轨迹的不同表示，从而改善用户 经验。