Patent ID: 6757432
Filing Date: 2004-06-29
Classification: G06T

Abstract:
A transmitter comprising a multi-dimensional stream data transmitting unit, for transmitting multi-dimensional stream data,a multi-dimensional stream data identifying unit for classifying input data into a plurality of kinds of motion data; a multi-dimensional stream data compressing unit for compressing the plurality of kinds of motion data on a block basis; and a multi-dimensional stream data retaining unit for retaining data compressed by the multi-dimensional stream data compressing unit in a multi-hierarchical structure, wherein the transmitter selects data retained in a certain hierarchical structure from the data retained in the multi-hierarchical structure, in accordance with a state of a transmission path through which the multi-dimensional stream data is to be transmitted and a reproduction speed at which a receiver receiving the multi-dimensional stream data reproduces the multi-dimensional stream data, and transmits the selected data, and wherein the transmitter selects data at a hierarchy level, at which a reproducible data amount is the largest, from the data retained in the multi-hierarchical structure, in accordance with a state of a transmission path through which the multi-dimensional stream data is to be transmitted, and a reproduction speed at which the receiver receiving the multi-dimensional stream data reproduces the multi-dimensional stream data.