Fig. 1

Block diagram of the proposed method. This figure shows how the proposed encoder works. It includes three parts: Part (I) This part of the encoder is responsible to extract the map of different regions of interest and feeds part III of the encoder (more detail in Section 2.2). Part (II) This part separates the depth map frame and the color video frame. Then, every frame of both the depth map and color video frame are decimated in the pixel domain to created four descriptions. Each description contains one pixel of every block of size 2 × 2 (see Section 2.3). Part (III) This part enhances the resolution of different regions of interest as explained in Section 2.4