Method and system for compressing groups of basic media data units
AssigneeBigband Networks, Inc.
InventorsAmir Leventer, Nery Strasman
Life of this patent
Estimating the term…
Abstract
The invention provides a method for compressing a group of basic media data units, the method comprising the steps of: (a) receiving the group of basic media data units; (b) for each basic media data unit of the group performing the steps of: (b1) partially decoding the basic media data unit; (b2) determining whether to reduce the size of the basic media data unit of the received block in view of a predefined relationship between a predefined compression ratio (PCRA) and a residual ratio (RR); (b3) reducing the size of the basic media data unit, in view of the determination, such that an optimal reduction to quality degradation of the basic media data block is achieved; and (b4) partially encoding the basic media data unit.
Claims21
A method for compressing a group of basic media data units, the method comprising the steps of:
- (a) receiving the group of basic media data units;
- (b) for each basic media data unit of the group performing the steps of:
- (b1) partially decoding at least a portion of the basic media data unit to provide a plurality of amplitude/runlength pairs;
- (b2) determining whether to reduce the size of the basic media data unit in view of a predefined relationship between a predefined compression ratio (PCRA) and a residual ratio (RR);
- (b3) reducing the size of the basic media data unit, in view of the determination, by changing the values of at least some of the amplitudes;
- and
- (b4) partially encoding the basic media data unit.
Dependencies are inferred from the claim text.