Image processing device and method

Abstract

Provided is an image processing device including a reception section configured to receive an encoded stream set in syntax of the encoded stream in which motion vector (MV) range limit information is encoded in units in which image data have a hierarchical structure and the MV range limit information, the MV range limit information being information about a limit of a value of a vertical direction of an MV for referring to a view different from a view of a current block in an inter-view MV corresponding to the current block, and a decoding section configured to decode the encoded stream received by the reception section using the MV range limit information received by the reception section.

1 . (canceled) 
     
     
         2 : An image decoding device, comprising:
 circuitry configured to:   receive an encoded stream comprising syntaxes in which motion vector (MV) range limit information is encoded, the MV range limit information including a constraint flag;   in a case that the constraint flag is equal to 1, perform an inter-layer prediction in layers of pictures while constraining an inter-view MV used for the inter-layer prediction in a vertical direction to less than 0.56 in units of luma samples; and   in a case that the constraint flag is equal to 0, perform the inter-layer prediction without constraining the inter-view MV in the vertical direction.   
     
     
         3 : The image decoding device of  claim 2 , wherein the circuitry is further configured to separate the encoded stream into a base view image and a dependent view image. 
     
     
         4 : The image decoding device of  claim 3 , wherein the circuitry is further configured to decode the dependent view image. 
     
     
         5 : The image decoding device of  claim 3 , wherein the circuitry is further configured to decode a predetermined number of largest coding unit (LCU) lines of the base view image before performing the inter-layer prediction. 
     
     
         6 : The image decoding device of  claim 5 , wherein the circuitry is further configured to:
 in the case that the constraint flag is equal to 0, decode remaining LOU lines of the base view image before decoding the dependent view image.   
     
     
         7 : The image decoding device of  claim 6 , wherein the circuitry is further configured to:
 in the case that the constraint flag is equal to 1, decode the dependent view image before decoding the remaining Lai lines of the base view image.   
     
     
         8 : An image decoding method, comprising:
 receiving an encoded stream comprising syntaxes in which motion vector (MV) range limit information is encoded, the MV range limit information including a constraint flag;   if the constraint flag is equal to 1, performing an inter-layer prediction in layers of pictures while constraining an inter-view NW used for the inter-layer prediction in a vertical direction to less than 56 in units of luma samples; and   if the constraint flag is equal to 0, performing the inter-layer prediction without constraining the inter-view MV in the vertical direction.   
     
     
         9 : The image decoding method of  claim 8 , further comprising separating the encoded stream into a base view image and a dependent view image. 
     
     
         10 : The image decoding method of  claim 9 , further comprising decoding the dependent view image. 
     
     
         11 : The image decoding method of  claim 9 , further comprising decoding a predetermined number of largest coding unit (LCU) lines of the base view image before performing the inter-layer prediction. 
     
     
         12 : The image decoding method of  claim 11 , further comprising:
 in the case that the constraint flag is equal to 0, decoding remaining LCU lines of the base view image before decoding the dependent view image.   
     
     
         13 : The image decoding method of  claim 12 , further comprising:
 in the case that the constraint flag is equal to 1, decoding the dependent view image before decoding the remaining LCU lines of the base view image.