System and method for image reconstruction

A system, comprising:

• at least one storage medium including a set of instructions;
• and
• at least one processor in communication with the at least one storage medium, wherein when executing the set of instructions, the at least one processor is directed to cause the system to perform operations including:
• determining a set of projection data corresponding to each of the plurality of pixels in a first storage device;
• determining a first data template associated with the first pixel and a second data template associated with the second pixel;
• and
• pre-fetching, from a second storage device, a set of projection data associated with the second pixel based on the first data template and the second data template to the first storage device, wherein the second data template at least partially overlaps a filled first data template in an overlapping region, and the overlapping region of the second data template is filled before the pre-fetching.

A non-transitory computer readable medium, comprising executable instructions that, when executed by at least one processor, direct the at least one processor to perform a method, the method comprising:

• determining a set of projection data corresponding to each of the plurality of pixels in a first storage device;
• determining a first data template associated with the first pixel and a second data template associated with the second pixel;
• and
• pre-fetching, from a second storage device, a set of projection data associated with the second pixel based on the first data template and the second data template to the first storage device, wherein the second data template at least partially overlaps a filled first data template in an overlapping region, and the overlapping region of the second data template is filled before the pre-fetching.