Patent ID: 8891539

Claim:
A gateway apparatus comprising: a reception unit that receives an image signal including a moving image or a still image from a first terminal connected to a first network; a conversion unit that performs conversion which enhances resolution and image quality of said received image signal; and a transmission unit that transmits said converted image signal to a second terminal connected to a second network, wherein said conversion unit comprises: a decoding unit that decodes said received image signal in a scheme corresponding to capability information on said first terminal; a resolution conversion unit that converts resolution of said decoded image signal to improve image quality thereof, based on capability information on said second terminal, said resolution conversion unit, in converting resolution of said decoded image signal of a moving image, receiving a motion vector of each of macro-blocks decoded by said decoding unit, said resolution conversion unit re-executing motion vector search processing for pixels included in each of said macro-blocks based on said motion vector to find a detailed motion vector, and by applying, said detailed motion vector determined by said re-executing motion vector search processing, to pixels of a past reference frame and by using a frame being moved according to said detailed motion vector, increasing the number of pixels of a frame whose resolution is to be converted; and an encoding unit that receives an image signal whose resolution is converted by said resolution conversion unit, and encodes said received image signal in a scheme corresponding to said capability information on said second terminal.