DLSS

深度学习超级采样（Deep Learning Super Sampling，DLSS）是Nvidia开发的一种图像缩放技术，可实时用于电子游戏中，这种技术利用深度学习将较低分辨率的图像缩放为更高分辨率的图像，以便在更高分辨率的电脑显示器上显示^[1]。

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历史

Nvidia在2018年9月推出NVIDIA GeForce 20系列GPU时，将DLSS作为卖点进行宣传^[2]。当时，DLSS的效果仅限于少数几款视频游戏（如《战地5》和《地铁：离乡》） ^{[3] [4]}。 2020年4月，Nvidia推出DLSS 2.0，该版本的DLSS适用于《控制》和《德军总部：新血脉》等游戏^{[2] [5]}。

DLSS 3.0于2022年10月发布。DLSS 3.5版本于2023年8月22日发布，《心灵杀手2》、《赛博朋克2077》等将成为应用DLSS 3.5技术的首批游戏。^[6][7][8]

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参考文献

1. Nvidia RTX DLSS: Everything you need to know. Digital Trends. 2020-02-14 [2020-04-05]. （原始内容存档于2018-11-02）. Deep learning super sampling uses artificial intelligence and machine learning to produce an image that looks like a higher-resolution image, without the rendering overhead. Nvidia’s algorithm learns from tens of thousands of rendered sequences of images that were created using a supercomputer. That trains the algorithm to be able to produce similarly beautiful images, but without requiring the graphics card to work as hard to do it.
2. Nvidia DLSS in 2020: stunning results. techspot.com. 2020-02-26 [2020-04-05]. （原始内容存档于2020-02-28）.
3. AMD Thinks NVIDIA DLSS is not Good Enough; Calls TAA & SMAA Better Alternatives. techquila.co.in. 2019-02-15 [2020-04-06]. （原始内容存档于2019-02-15）. Recently, two big titles received NVIDIA DLSS support, namely Metro Exodus and Battlefield V. Both these games come with NVIDIA’s DXR (DirectX Raytracing) implentation that at the moment is only supported by the GeForce RTX cards. DLSS makes these games playable at higher resolutions with much better frame rates, although there is a notable decrease in image sharpness. Now, AMD has taken a jab at DLSS, saying that traditional AA methods like SMAA and TAA “offer superior combinations of image quality and performance.”
4. Nvidia Very Quietly Made DLSS A Hell Of A Lot Better. Kotaku. 2020-02-22 [2020-04-06]. （原始内容存档于2020-09-29）. The benefit for most people is that, generally, DLSS comes with a sizeable FPS improvement. How much varies from game to game. In Metro Exodus, the FPS jump was barely there and certainly not worth the bizarre hit to image quality.
5. HW News - Crysis Remastered Ray Tracing, NVIDIA DLSS 2, Ryzen 3100 Rumors. 2020-04-19 [2020-04-19]. （原始内容存档于2020-09-26）. “The original DLSS required training the AI network for each new game. DLSS 2.0 trains using non-game-specific content, delivering a generalized network that works across games. This means faster game integrations, and ultimately more DLSS games.”
6. 「NVIDIA DLSS 3.5」発表 - 学習データはDLSS 3比で5倍に爆増、“光線再構築”でより忠実に. マイナビニュース. 2023-08-22 [2023-09-22]. （原始内容存档于2023-09-03） （日语）.
7. 准备好迎接支持 NVIDIA DLSS 3.5 和全景光线追踪技术的“赛博朋克 2077：往日之影 (Cyberpunk 2077：Phantom Liberty)” | GeForce 新闻 | NVIDIA. [2023-09-22]. （原始内容存档于2023-09-23）.
8. NVIDIA DLSS 3.5：借助 AI 提升光线追踪；“心灵杀手 2 (Alan Wake 2)”、“赛博朋克 2077：往日之影 (Cyberpunk 2077: Phantom Liberty)”、“传送门 RTX 版 (Portal with RTX)”等游戏将于今年秋季支持 DLSS 3.5 | GeForce 新闻 | NVIDIA. [2023-09-22]. （原始内容存档于2023-10-11）.

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