Graduate School and Research Center in Digital Sciences

A method of adapting video images to small screen sizes

Deigmoeller, Joerg; Stoll, Gerhard ; Neuschmied, Helmut ; Kriechbaum, Andreas ; Dos Santos Cardoso, José Bernardo ; Oliveira de Carvalho, Fausto José ; Salgado de Alem, Roger ; Huet, Benoit ; Mérialdo, Bernard ; Trichet, Rémi

European Patent N° WO2009115101 (A1)

In order to improve a cropping system by obtaining the coverage of a wide range of contents for smaller sized displays of handheld devices, the invention proposes a method starting from a metadata aggregation and the corresponding video, e.g. in post-production, programme exchange and archiving, wherein (a) the video is passed through to a video analysis to deliver video, e.g. by use of motion detection, morphology filters, edge detection, etc., (b) the separated video and metadata are combined to extract important features in a context wherein important information from the metadata is categorised and is used to initialise a dynamically fitted chain of feature extraction steps adapted to the delivered video content, (c) extracted important features are combined to defione regions of interest (ROI) which are searched in consecutive video frames by object tracking, said object tracking identifies the new position and deformation of each initialised ROI in consecutive video frames and returns this information to the feature extraction thereby obtaining a permanent communication between said feature extraction and said object tracking, (d) one or several ROIs are extracted and inputted video frame by video frame into a cropping step (e); based on weighting information a well composed image part is cropped by classifying said supplied ROIs by importance, and (f) said cropped image area(s) are scaled to the desired small screen size.

Document Bibtex

Title:A method of adapting video images to small screen sizes
Department:Data Science
Eurecom ref:3298
Copyright: © EURECOM. Personal use of this material is permitted. The definitive version of this paper was published in European Patent N° WO2009115101 (A1) and is available at :
Bibtex: @patent{EURECOM+3298, year = {2009}, title = {{A} method of adapting video images to small screen sizes}, author = {{D}eigmoeller, {J}oerg and {S}toll, {G}erhard and {N}euschmied, {H}elmut and {K}riechbaum, {A}ndreas and {D}os {S}antos {C}ardoso, {J}os{\'e} {B}ernardo and {O}liveira de {C}arvalho, {F}austo {J}os{\'e} and {S}algado de {A}lem, {R}oger and {H}uet, {B}enoit and {M}{\'e}rialdo, {B}ernard and {T}richet, {R}{\'e}mi}, url = {} }
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