초록 ▼

A system and method for visual image compression and transmission offers significant bandwidth conservation while retaining high resolution imaging capability. Videograpic images are decomposed into detail levels, and images are delivered to a remote site display at a level of detail proportional to

A system and method for visual image compression and transmission offers significant bandwidth conservation while retaining high resolution imaging capability. Videograpic images are decomposed into detail levels, and images are delivered to a remote site display at a level of detail proportional to the perception level of a viewer. Images are transformed, quantized, coded and queued for transmission in accordance with their level of image detail. Image detail layers are transmitted as an inverse function of image displacement speed and as a direct function of image magnification. Images are constructed vertically with each additional queueing layer providing additional image detail. Higher priority layers are lossy encoded, while the lowest priority layers (highest detail levels) are losslessly encoded.

대표청구항 ▼

A system and method for visual image compression and transmission offers significant bandwidth conservation while retaining high resolution imaging capability. Videograpic images are decomposed into detail levels, and images are delivered to a remote site display at a level of detail proportional to

A system and method for visual image compression and transmission offers significant bandwidth conservation while retaining high resolution imaging capability. Videograpic images are decomposed into detail levels, and images are delivered to a remote site display at a level of detail proportional to the perception level of a viewer. Images are transformed, quantized, coded and queued for transmission in accordance with their level of image detail. Image detail layers are transmitted as an inverse function of image displacement speed and as a direct function of image magnification. Images are constructed vertically with each additional queueing layer providing additional image detail. Higher priority layers are lossy encoded, while the lowest priority layers (highest detail levels) are losslessly encoded. ed and stored in a database. 13. The method of claim 12, wherein determining the plurality of directory numbers is performed by a database query designating the subscriber group. 14. The method of claim 12, wherein determining the plurality of directory numbers is performed by a first database query designating the subscriber group to obtain a predefined pseudo-random number, followed by a second database query designating the predefined pseudo-random number to obtain the plurality of directory numbers corresponding to the subscriber group. 15. The method of claim 1, wherein the designation of the multiple leg service is a feature code. 16. The method of claim 1, wherein the designation of the multiple leg service is a predetermined directory number. 17. The method of claim 1, wherein step (d) further comprises transmitting an ISUP initial address message, for each intermediate incoming call leg of the plurality of intermediate incoming call legs, wherein the ISUP initial address message includes a called party directory number, a calling party directory number, an identification of the subscriber group, and an indication of the multiple leg service. 18. The method of claim 1, wherein step (b) further comprises transmitting an ISUP initial address message, wherein the ISUP initial address message includes a calling party directory number, an identification of the subscriber group, and an indicator of a type of multiple leg service. 19. The method of claim 1, further comprising: releasing an outgoing call leg, of the plurality of outgoing call legs, which has remained unanswered for a predetermined period of time. 20. The method of claim 1, wherein step (f) further comprises: transmitting a message on the first incoming call leg indicating a number of outgoing call legs which have joined the multiple leg telecommunication session. 21. A system for telecommunication conferencing and broadcasting, the system comprising: a switch, the switch for reception of a first incoming call leg designating a multiple leg service and a subscriber group; and a conference bridge coupled to the switch, the conference bridge including instructions to receive the first incoming call leg routed from the switch, to determine a plurality of directory numbers associated with the subscriber group, and to return to the switch a plurality of independent, intermediate incoming call legs corresponding to the plurality of directory numbers for routing by the switch to form a plurality of independent outgoing call legs; the conference bridge including further instructions to monitor answering of the plurality of outgoing call legs, and when an outgoing call leg, of the plurality of outgoing call legs, indicates joinder, the conference b