摘要:
The invention discloses a method of viewing audiovisual documents on a playback device, comprising a step for reading or receiving a document and a display step for viewing the images of this document on a screen. The method further comprises a step for reading or receiving an attribute associated with a time band of the document. A predetermined value of the attribute triggers on the device the enlargement of a part of the image on playback during said time band, because of which this image part occupies a larger area on screen.
摘要:
The invention discloses a method of viewing audiovisual documents on a playback device, comprising a step for reading or receiving a document and a display step for viewing the images of this document on a screen. The method further comprises a step for reading or receiving an attribute associated with a time band of the document. A predetermined value of the attribute triggers on the device the enlargement of a part of the image on playback during said time band, because of which this image part occupies a larger area on screen.
摘要:
The present invention relates to a method for creation of an animated series of photographs. A photograph acquisition device analyzes the images in order to detect an absence of movement. The detection of an absence of movement during a determined period triggers a photograph to be taken and the memorization of image data in the series of photographs. The user introduces a command to end the acquisition of the series of photographs. The data of different photographs taken are assembled to form an animated series. During the reproduction, the series is reproduced by displaying successively each photograph, the time between each photograph reproduction can possibly be introduced by the user. The invention also relates to a photograph acquisition device designed acquire said animated series of photographs.
摘要:
The present invention relates to a method for creation of an animated series of photographs. A photograph acquisition device analyzes the images in order to detect an absence of movement. The detection of an absence of movement during a determined period triggers a photograph to be taken and the memorization of image data in the series of photographs. The user introduces a command to end the acquisition of the series of photographs. The data of different to photographs taken are assembled to form an animated series. During the reproduction, the series is reproduced by displaying successively each photograph, the time between each photograph reproduction can possibly be introduced by the user. The invention also relates to a photograph acquisition device designed acquire said animated series of photographs.
摘要:
Automatic tracking by a camera (16) of an object (12) such as on-air talent appearing in a television show commences by first determining whether the object lies within the camera field of view matches a reference object. If so, tracking of the object then occurs to maintain the object in fixed relationship to a pre-set location in the camera's field of view, provided the designated object has moved more than a threshold distance from the pre-set location.
摘要:
The invention relates to a device (1) and a method for creating summaries of multimedia documents, the device comprising a storage means and means enabling a user to view a multimedia document. According to the invention, the device comprises means of automatically weighting multimedia documents stored in the storage means according to the frequency with which the different stored documents are viewed by said user, means of creating a summary of the multimedia documents stored on the storage means according to the weighting assigned to each multimedia document.
摘要:
The method utilizing a graph-like structure is comprises the following iteration: calculation of the potential of node nm, merging of two nodes ni and nj, as a function of the distances between the attributes of the key images and as a function of the temporal distance of these key images, calculation of the potential of each edge connecting the merged node to another node of the graph previously connected to nodes ni or nj, merging of the two nodes and validation of the new graph if the energy of this graph is less than the energy of the graph before merging.
摘要:
The invention concerns a device and an automatic resetting method using electronic means intended for a geometric model of a scene over a picture of the scene including fixed references, the electronic means comparing the picture with model having been adjusted in perspective by homography for superimposition of the references. According to the invention, the electronic device calculates a fine homography function Hf for resetting into three phases: a first preliminary phase of determination of an average resetting homography consisting in determining an average homography function Hm applicable to the model with average adjustment over a sample of pictures of the scene taken previously, a second, rough resetting phase consisting after application of the average homography function Hm, to the model in determining a rough homography function Hg, and a third, fine resetting phase consisting after application of the rough homography function Hg to the model in determining the fine homography function Hf.
摘要:
The invention concerns a device and a method for colour correction of an input image. According to the invention, the device comprises: means for analysing the colours of an input image in order to get a colours parametric representation of said input image, means for selecting a set of reference images, means for analysing the colours of at least one of said reference images or one region of said reference images in order to get a colours parametric representation of said reference image, means for calculating a set of possible transformations on the colour of said input image such that the colours parametric representation of said input image is close to the colours parametric representation of said reference image according to a distance criterion, means for selecting among the said possible transformations, a subset of transformations which applied to said input image, gives a physically possible colour corrected input image, means for interactively selecting visually one transformation out of said subset. Application to the post-production of films.
摘要:
The invention describes a creation method of a summary of an audiovisual document respecting both the criteria defined by the user and criteria helping in the understanding of said summary. The document is first split into sequences, each sequence associated with attribute values and a dependence parameter. The user first selects the first sequences either manually, or according to attribute values. Then second sequences are added according to the value of the dependence parameters. These added sequences enable a better understanding of the summary thus created. According to an improvement, the user introduces a maximum duration for the summary, first and/or second sequences are withdrawn from the summary if the duration of the summary thus created exceeds the introduced duration. The invention also relates to an audiovisual device for the creation and viewing of the summary.