Abstract:
An apparatus for video encoding includes an image prediction unit configured to generate a prediction image about an input image; and a differential signal generation unit configured to generate a differential signal by subtracting the prediction image from the input image. Further, the apparatus includes a restoration image generation unit configured to generate a first restoration image about the input image using the prediction image; and an in-loop filter unit configured to produce a second restoration image that in-loop filtering has been performed, and after performing rate distortion optimization (RDO) by producing bit amount information necessary for restoring the second restoration image, provide result information of the RDO with the image prediction unit.
Abstract:
An image encoding method and apparatus and an image decoding method and apparatus are provided. The image encoding method and image decoding method may enhance performance of the image encoding apparatus and performance of the image decoding apparatus by adaptively applying a tile-based parallel encoding scheme, a frame-based parallel encoding scheme, and an instantaneous decoding refresh (IDR) period-based parallel encoding scheme.