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Kuaishou Audio & Video Technology
Kuaishou Audio & Video Technology
Dec 30, 2022 · Artificial Intelligence

Unlocking Realistic Bokeh: Depth‑Aware Algorithms Behind Holiday Video Effects

This article explains the optical principles of bokeh (scatter blur), describes a depth‑aware variable‑focus algorithm developed by Kuaishou’s audio‑video team, and details practical optimizations such as saliency detection, edge‑preserving weighting, and adaptive spot‑light effects that enable realistic, customizable holiday video filters.

BokehDepth EstimationVideo Effects
0 likes · 11 min read
Unlocking Realistic Bokeh: Depth‑Aware Algorithms Behind Holiday Video Effects
Kuaishou Tech
Kuaishou Tech
Jan 11, 2022 · Mobile Development

Texture Compression Technique for Mobile Effects: Removing Hollow Areas to Reduce Memory Usage

This article presents a texture compression method that eliminates hollow (alpha‑zero) regions by reorganizing textures into macro‑blocks, storing index maps for reconstruction, and demonstrates significant memory savings and unchanged visual quality on mobile devices, even after video encoding.

Memory OptimizationShaderTexture Compression
0 likes · 8 min read
Texture Compression Technique for Mobile Effects: Removing Hollow Areas to Reduce Memory Usage
Kuaishou Large Model
Kuaishou Large Model
Aug 13, 2021 · Backend Development

How Y‑Tech Overcomes High‑Latency Server‑Side Video Effects with Cloud‑Native Workflows

This article explains how Kuaishou's Y‑Tech team designs a server‑side video‑effects platform that tackles high computational load, real‑time constraints, and resource limits by adopting asynchronous workflows, task‑queue scheduling, and cloud‑native serverless frameworks such as Netflix Conductor and Knative.

MicroservicesVideo Effectsbackend architecture
0 likes · 8 min read
How Y‑Tech Overcomes High‑Latency Server‑Side Video Effects with Cloud‑Native Workflows
Tencent Cloud Developer
Tencent Cloud Developer
Jun 21, 2018 · Mobile Development

Implementing Shift-and-Blend Video Effects with OpenGL Shaders

In this article, Tencent engineer Chang Qing explains the biology‑inspired “Shift‑and‑Blend” video effect—separating RGB channels, scaling and translating each, then alpha‑blending them—while detailing a normalized coordinate system, the required scaling/translation operations, and a high‑performance OpenGL fragment shader implementation for real‑time video processing, with links to demo and source code.

GLSLMobile DevelopmentOpenGL
0 likes · 9 min read
Implementing Shift-and-Blend Video Effects with OpenGL Shaders