Method and apparatus for virtual reality depth retargeting

An apparatus comprising:

• a region sub-division circuit to divide a virtual screen region into a plurality of smaller regions based on characteristics of a target screen;
• a region-specific depth retargeting circuit to perform depth retargeting individually for each of the smaller regions including identifying a first set of the smaller regions on which to employ a first depth retargeting technique and a second set of the smaller regions on which to employ a second depth retargeting technique;
• wherein the first depth retargeting technique comprises subdividing one or more of the smaller regions from the first set into a plurality of sub-regions and performing depth retargeting individually on the sub-regions;
• a scene combiner to combine results of the first depth retargeting technique and the second depth retargeting technique to render the virtual screen region.

A system comprising:

• a memory to store program code and data;
• a central processing unit (CPU) comprising an instruction cache for caching a portion of the program code and a data cache for caching a portion of the data, the CPU further comprising execution logic to execute at least some of the program code and responsively process at least some of the data, at least a portion of the program code comprising graphics commands;
• a graphics processing subsystem to process the graphics commands and responsively render a plurality of images, the graphics processing subsystem comprising:
• a region sub-division circuit to divide a virtual screen region into a plurality of smaller regions based on characteristics of a target screen;
• a region-specific depth retargeting circuit to perform depth retargeting individually for each of the smaller regions including identifying a first set of the smaller regions on which to employ a first depth retargeting technique and a second set of the smaller regions on which to employ a second depth retargeting technique;
• wherein the first depth retargeting technique comprises subdividing one or more of the smaller regions from the first set into a plurality of sub-regions and performing depth retargeting individually on the sub-regions;
• a scene combiner to combine results of the first depth retargeting technique and the second depth retargeting technique to render the virtual screen region.