Quality Sound and Vision: Enhancing Video and Audio Experience with AI
The article details the development of '质臻影音' technology by Kuaishou's audio-visual team, which uses AI algorithms to restore classic films and enhance video quality through techniques like super-resolution, noise reduction, and adaptive processing strategies.
快手放映厅的视频种类繁多,集合了海量影、剧、综内容,但影像质量有所差异。"质臻影音"拥有1080P和4K两个档位,可以根据用户的手机型号和网络情况智能化选择合适的分辨率版本;对于支持HDR解码和显示的机型,提供HDR版本以展现最佳色彩表现,而对于不支持HDR的机型,也相应提供了SDR+版本,模拟HDR效果。根据用户手机设备分布情况,团队定制了增强档位版本,力争让每位用户在不卡顿、低功耗的情况下获得最佳播放体验。
针对视频中普遍存在的画质问题,技术团队开发了多维度的修复和增强算法,改善视频画质。为了让用户消费更加细腻清晰的视频,团队为修复后的视频使用了4K超分辨率算法,让分辨率和清晰度都"更上一层楼"。在音质层面,采用了对白增强,低音增强,声场拓宽等音频增强手段,让声音更高级,更通透,立体环绕感更强。
对于"经典重现","身临其境","智能触发"等章节,团队针对不同影片类型(如老电影、近期影片、暗光场景)开发了针对性修复算法,包括去模糊、超分辨率、噪声消除等技术。"质臻影音"背后的"神秘算法"涉及智能触发对应修复增强能力算子的机制,可实现自适应处理,从而改善每个视频中存在的特定画质问题。实际的转码流程包括内容分析、特征提取、预测算法组合、前处理和编码操作。
最终,"质臻影音"通过"点对点"精准解决方案,对新老影片都进行了不同程度的优化,无论是何种电影风格,都能得到全方位提升。
Signed-in readers can open the original source through BestHub's protected redirect.
This article has been distilled and summarized from source material, then republished for learning and reference. If you believe it infringes your rights, please contactand we will review it promptly.
Kuaishou Tech
Official Kuaishou tech account, providing real-time updates on the latest Kuaishou technology practices.
How this landed with the community
Was this worth your time?
0 Comments
Thoughtful readers leave field notes, pushback, and hard-won operational detail here.
