System and method for managing the visual effects insertion in a video stream
Номер патента: EP1922863A2
Опубликовано: 21-05-2008
Автор(ы): Alexander Steinberg, Andrzej Wojdala, Avi Sharir, Guillaume Godet, Ofir Benovici, Zinovy Livshits
Принадлежит: Orad Hi Tec Systems Ltd
Опубликовано: 21-05-2008
Автор(ы): Alexander Steinberg, Andrzej Wojdala, Avi Sharir, Guillaume Godet, Ofir Benovici, Zinovy Livshits
Принадлежит: Orad Hi Tec Systems Ltd
Реферат: A method and system are presented for use in real-time insertion of visual effects in a video stream. At least one reference image is used that contains a region of interest, which is to be involved in the video stream. the reference image is processed by defining a set of at least a few reference features therein, and inserting the visual effects into the reference image with a desired orientation of the visual effects with respect to the region of interest in the reference image. Successive video frames are grabbed in a sequence of a few video frames, and at least one of video frames is used as at least one snapshot image. The snapshot image(s) is/are process by selecting therein at least two from the reference features and determining a reference transformation between the snapshot image and the reference image. Independently of this processing of the snapshot image, the snapshot image and other video frames are processed to determine a sequence of transformations between them. These data are utilized to determine an operative transformation between the reference image and either one of the video frames, thereby enabling real-time management of the appearance of the visual effects in the video stream by using the operative transformation for the insertion of the visual effects in other video frames.
Systems and methods for contextual backgrounds in streaming video sessions
Номер патента: US20240267483A1. Автор: Daniel L. Hamlin,Todd Erick Swierk,Srikanth Kondapi. Владелец: Dell Products LP. Дата публикации: 2024-08-08.