Method and apparatus for determining a video compression standard in a 3 DTV service

Abstract

Provided are a method and apparatus for determining a video compression standard in a 3DTV service. The method for determining a video compression standard comprises encoding high-quality video, and transmitting the encoded video through channel 1, determining a video compression standard in which the resolution of encoded low-quality video compared to the resolution of encoded high-quality video is the same as or higher than a standard value, and encoding the low-quality video in accordance with the determined video compression standard and transmitting the encoded low-quality video through channel 2. Provided are a method and apparatus for determining a video compression standard in a 3DTV service.; The method for determining a video compression standard comprises encoding high-quality video and transmitting the encoded video through channel 1, determining a video compression standard in which the resolution of encoded low-quality video compared to the resolution of encoded high-quality video is the same as or higher than a standard value, and encoding the low-quality video in accordance with the determined video compression standard and transmitting the encoded low-quality video through channel 2.

Description

technical field [0001] The invention relates to a method and a device for determining image compression specifications in 3DTV services. In particular, it relates to a technology for synthesizing 3D stereoscopic images by determining image compression specifications and synthesizing the images in 3DTV using both fixed broadcasting and mobile broadcasting. Background technique [0002] The Advanced Television Systems Committee Mobile / Handheld ATSC M / H (Advanced Television Systems Committee Mobile / Handheld) service logically shares a physical channel with standard ATSC broadcasts such as 8-VSB (Vestigial Side Band). In this case, the ATSC M / H service uses a part of approximately 19.39 Mbps bandwidth and provides ground wave broadcasting services to mobile or portable TV users using transmission technology over IP transmission. That is, by time-dividing and transmitting an M / H frame corresponding to about 19.39 Mbps consisting of 8-VSB packets and M / H packets, two services are...

AI Technical Summary

Problems solved by technology

[0009] In addition, 3) when the stereo image is separately transmitted in the 8-VSB channel and the M / H channel, compared with only using the 8-VSB channel or the M / H channel, excellent image quality can be provided. However, due to the M The / H channel and the 8-VSB channel have a large difference in bandwidth, so it is impossible to encode the right image into HD level. Therefore, when compressing and transmitting the HD level stereo image, the restored image in the image receiver The resolution and quality of the right image are lower than those of the left image, and as a result, the quality of the restored right image is lowered, and the quality of the three-dimensional image generated by combining the restored left and right images is also poor.

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