Patent ID: 7679648
Filing Date: 2010-03-16
Classification: H04N

Abstract:
1. A method for providing a sectional video view with a controllable zoom, pan and tilt defined by a boundary within a general video view captured by a first camera of an end-point comprising: consecutively capturing, at an encoding apparatus, video images of the general view which are processed by a coding process; creating, at the encoding apparatus, a first coded video signal representing the general view; generating, at the encoding apparatus, a predicted video image of at least a first current video image; subtracting, at the encoding apparatus, the predicted video image from the first current video image; receiving, at the encoding apparatus, a control signal defining the boundary within the general video view; extracting, at the encoding apparatus, a first set of pixel values lying within the boundary in the first current video image or in a second current video image captured by a second camera to create a sectional video view; extracting, at the encoding apparatus, a second set of pixel values from the predicted video image corresponding to the first set of pixel values; creating, at the encoding apparatus, a residual of the sectional video view by subtracting the second set of pixel values from said first set of pixel values; and creating, at the encoding apparatus, a second coded video signal representing the sectional video view by further compressing the residual according to the coding process.