公开(公告)号：US20140327745A1

公开(公告)日：2014-11-06

申请号：US14356698

申请日：2012-10-23

Applicant: ST-Ericsson SA

Inventor： Antoine Drouot

IPC: H04N5/225 ,  H04N13/02

CPC classification number: H04N5/2259 ,  G06T3/4038 ,  H04N9/76 ,  H04N13/204 ,  H04N13/221

Abstract: The invention concerns a method of generating at least a first panoramic picture and a second panoramic picture based on a series of frames acquired by one frame acquisition device while said device is panned in a main direction, a global motion value and a perspective transform being computed for each pair of consecutive frames of the series, the global motion value reflecting a displacement in the main direction between the frames of a pair of frames and the perspective transform reflecting a perspective change between the frames of a pair of frames. For each frame of the series, a first area of the frame is determined for the first panoramic picture and a second area of the frame, distinct from the first area, is determined for the second panoramic picture. The method comprises, upon acquisition of a current frame of the series of frames, determining a first frame among the already acquired frames of the series of frames, which has second area that shares at least a common area with the first area of the current frame, calculating a global transform based on the perspective transforms of the pairs of consecutive frames that have been acquired between the first frame and the current frame and determining an adapted first area by applying an inverse of the global transform to the first area of the current frame, the adapted first area being included into the first panoramic picture and the second area of the current frame being included into the second panoramic picture.

Abstract translation: 本发明涉及一种产生至少第一全景图像和第二全景图像的方法，该方法基于在一个主要方向上平移所述装置的同时由一个帧采集装置获取的一系列帧，计算全局运动值和透视变换 对于该系列的每对连续帧，反映一对帧的帧之间的主方向上的位移的全局运动值和反映一对帧的帧之间的透视变化的透视变换。 对于该系列的每个帧，为第一全景图像确定帧的第一区域，并且为第二全景图片确定与第一区域不同的帧的第二区域。 所述方法包括：在获取所述一系列帧的当前帧时，确定所述一系列帧的已经获取的帧中的第一帧，其具有与当前帧的第一区域共享至少公共区域的第二区域 基于在第一帧和当前帧之间获取的连续帧对的透视变换来计算全局变换，并且通过将全局变换的逆向应用于当前帧的第一区域来确定适配的第一区域 被适配的第一区域被包括在第一全景图像中，并且当前帧的第二区域被包括在第二全景图像中。

公开(公告)号：US09602708B2

公开(公告)日：2017-03-21

申请号：US14356698

申请日：2012-10-23

Applicant: ST-Ericsson SA, En Liquidation

Inventor： Antoine Drouot

IPC: H04N5/225 ,  H04N13/02 ,  G06T3/40 ,  H04N9/76

CPC classification number: H04N5/2259 ,  G06T3/4038 ,  H04N9/76 ,  H04N13/204 ,  H04N13/221

Abstract: A method of generating first and second panoramic pictures based on a series of frames acquired by a frame acquisition device is provided. While the device is panned in a main direction, a global motion value reflecting a displacement in the main direction between consecutive frames and a perspective transform reflecting a perspective change between the frames are computed. For each frame, a first area of the frame is determined for the first panoramic picture and a second area of the frame, distinct from the first area, is determined for the second panoramic picture. An adapted first area is determined by applying an inverse of the global transform to the first area of the current frame, the adapted first area being included into the first panoramic picture and the second area of the current frame being included into the second panoramic picture.