The authors decided that the photorealism of the output image is to be maximized.

作者决定要将输出图像的真实感最大化。

Well, this sounds great, but who really knows a rigorous mathematical description of photorealism?

，，但谁又确实知道真实感的严谨的数学描述是什么呢？

These kinds of details are critical to simulating an environment and achieving true photorealism.

些细节对于模拟环境和实现真实感至关重要。