Intelligent storage | high speed HD media processing capability

In this era of content King , Creativity is very important , But the picture quality can not be ignored . The clear and clear picture may be that we media has successfully obtained traffic 、 The key factor for fans to stop and watch , For professional media , Picture quality is the basic skill . And to ensure the picture quality , Right place, right time , Even high-end equipment is indispensable , It's not easy .

In this environment , Data Vientiane CI  Launched COS+ Audio and video one-stop Video quality optimization scheme , Data Vientiane provides... In data workflow High speed HD capability , High speed high-definition media processing capability through Intelligent scene recognition 、 Dynamic coding , Accurate rate control model , Lower bit rate for on-demand scenes ( Average save 45%) Provide lower bit rate services , Comprehensive real-time video picture quality evaluation and analysis , Use de interleaving 、 Denoise 、USM、CDEF、ROI Such as image quality enhancement processing technology , Enhance texture details , Bring you a new high-definition vision .

01

High speed HD processing flow

As shown in the figure , Video feature analysis uses the method based on deep learning to analyze the poor image quality in the video 、 Noisy locations . The video feature analysis model is based on the subjective image quality evaluation method without reference , Rate the video as 1-10 The evaluation score of points is , Score according to video characteristics and image quality , Match the best processing scheme , While improving the image quality, find the video bit rate and crf Best relationship between , This reduces the size of the file , The last exquisite and compact video was born .

Here we focus on introducing the heaviest video pre-processing in the whole process .

02

Fast HD - Video preprocessing

After obtaining the results of video feature analysis , According to the training results of different scene models , Combined with the different requirements of customers for target results （ The resolution of the 、 Bit rate 、 Frame rate 、HDR etc. ）, We will sharpen the video source image texture and real-time motion detection results according to different intensities 、 Soft blur 、 Anti interlacing 、 Deblocking 、 Noise reduction 、 Color scale compensation 、 Pre processing such as frame reduction , So that the picture effect can greatly improve the image quality score in the non reference model , This is the so-called "thousands of people and thousands of faces processing" .

Before and after treatment

03

Fast HD - Video coding

Tencent's V265 and VAV1 I'll take part in MSU Encoder competition , All get The first name Good result , also V265 Encoder Keep leading the industry for four consecutive years .

Demo video ：https://ci-qta-cq-1251668577.cos.ap-chongqing.myqcloud.com/%E6%9E%81%E9%80%9F%E9%AB%98%E6%B8%85.MP4

04

summary

Data Vientiane CI Video quality optimization scheme launched - High speed HD capability , Provide a higher definition and high-quality video quality experience , Let users feel “ beautiful ” The share of . Besides , Data Vientiane CI It also provides accelerated video production 、 copyright protection 、 A series of abilities of video beautification , Such as ： Highlights 、 Digital watermark 、 Super resolution, etc . Of course , With the rapid development of video services , There are higher requirements for picture quality , Tencent cloud data Vientiane will certainly continue to bring users a clearer image quality experience , Coming soon ~