Virtual multiway scaler compensation

A method, comprising:

• receiving video images through at least one decoder from a plurality of video conferencing endpoints coupled to a multipoint control unit (MCU);
• generating a first composite video image comprised of at least two video images from respective video conferencing endpoints of the plurality of video conferencing endpoints;
• generating coordinate information including information indicating a size of the first composite video image and information on a location of a video image of the at least two video images within the first composite video image;
• scaling the first composite video image into a scaled composite video image;
• and
• transmitting the scaled composite video image and the coordinate information to at least one of the plurality of video conferencing endpoints;
• wherein the at least one of the plurality of video conferencing endpoints is operable to receive the scaled composite video image and the coordinate information, detect an actual size of the scaled composite video image, and use the information indicating a size of the first composite video image and the detected size of the scaled composite video image to determine new coordinates of one or more video images in the scaled composite video image.

A computer-readable storage medium, comprising program instructions, wherein the program instructions are computer-executable to:

• receive video images through at least one decoder from a plurality of video conferencing endpoints coupled to an MCU;
• generate a first composite video image comprised of at least two video images from respective video conferencing endpoints of the plurality of video conferencing endpoints;
• generate coordinate information including information indicating a size of the first composite video image and information on a location of a video image of the at least two video images within the first composite video image;
• scale the first composite video image into a scaled composite video image;
• and
• transmit the scaled composite video image and the coordinate information to at least one of the plurality of video conferencing endpoints;
• wherein the at least one of the plurality of video conferencing endpoints is operable to receive the scaled composite video image and the coordinate information, detect an actual size of the scaled composite video image, and use the information indicating the size of the first composite video image and the detected size of the scaled composite video image to determine new coordinates of one or more video images in the scaled composite video image.