Producing transitions between vistas
AssigneeIndustrial Technology Research Institute
InventorsCheng-Chin Chiang, Jun-Wei Hsieh, Tse Cheng
Life of this patent
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Abstract
A method is described for producing smooth transitions between a source vista and a destination vista with unknown camera axes in panoramic image based virtual environments. The epipoles on the source vista and the destination vista are determined to align the vistas. Corresponding control lines are selected in the vistas to compute the image flow between the vistas and to densely match the pixels. In-between image frames are computed by forward-resampling the source vista and backward-resampling the destination vista.
Claims14
Method for producing smooth transitions between a source vista and a destination vista, the source vista and the destination vista each comprising image pixels and an epipole, the method comprising:
- locating the epipole on the source vista and the epipole on the destination vista by estimating a rotation and tilt between the source and destination vista;
- aligning said source vista and said destination vista based on the located epipoles;
- selecting at least one control line on the source vista and at least one control line on the destination vista corresponding to said at least one control line on the source vista;
- and
- calculating an image flow of image pixels between the source vista and the destination vista based on the control lines.
A method for creating a sequence of moving images between panoramic vistas, comprising:
- determining the alignment between the panoramic vistas from an epipole of each vista,
- determining an image flow between corresponding image features of the aligned panoramic vistas,
- forming at predetermined times and based on said image flow, intermediate forward resampled images of one of the vistas and corresponding backward resampled images of another one of the vistas,
- merging at each predetermined time the forward resampled image and the backward resampled image to form a sequence of in-between images.
Dependencies are inferred from the claim text.