• 港媒:打工者乐队用艺术表现生活 2019-04-23
  • 日本大阪地震已致4人死亡 370多人受伤 2019-04-23
  • 测一测你是个怎样的人:这8幅图,你第一眼看到的是什么? 2019-04-17
  • 历时6载!“山西3女童猥亵被杀案”侦缉内幕曝光 2019-04-17
  • 盛世嘉园半夜狗叫声扰民哪个部门可以管 2019-04-13
  • 四川乐山公开审理新型贩毒案 2019-04-13
  • 萌萌哒童趣美食来袭 “六一”就给小朋友做这个 2019-03-22
  • 【理上网来·喜迎十九大】芬兰驻中国大使馆科技参赞:企业创新是中国式创新的核心 2019-03-22
  • 2018年高考江苏数学试卷及参考答案 2019-03-21
  • 火车南站能多设置几个停车和上下车提示牌吗? 2019-03-21
  • 李冰冰:深海潜水挑战极限 2019-03-21
  • 新鲜出炉!全国各地高考成绩查询、志愿填报时间表来了 2019-03-21
  • 甘肃警方破获一起“微信卖茶叶”特大新型网络诈骗案 2019-01-28
  • 酸味-热门标签-华商生活 2018-11-26
  • 阿来、麦家最近先后加入驻校作家行列 驻校作家做些什么 2018-11-26
  • Home News

    pk10大小单双平刷技巧:HiSilicon released latest image and video processing technology

    双色球怎样杀红号最准 www.syhxzy.net HiSilicon has released latest image and video processing technology including Advanced DRC, Advanced WDR, 8-Stage 3DNR, CVBR (Constrained Variable Bit Rate) and Pre-filtering Encoding Technique.


    • Advanced DRC

    Advanced DRC is the latest dynamic range compression technology. It comprehensively improves the dynamic range, enhances local contrast, and enhances the brightness of backlight face. It has great effect on wide dynamic scenes and infrared scenes.

    At the same time, AE module provides the dynamic range value of scene, which can be used to judge the dynamic range of scene. Then sceneauto program can dynamically adjust DRC, AE, gamma and other parameters for better adaptability of scenes. The 3DNR refers to MG statistics for better denoising adaptability.


    • Advanced WDR

    Advanced WDR is the latest WDR technology . It improves the detail extraction ability and wide dynamic brightness processing ability of DRC, thus realizing more compression of bright area and more enhancement of brightness of backlight area and more detail retention.

    Advanced WDR combines ISP local contrast processing modules(Defog curve is used in WDR mode to suppress the brightness of high-brightness area, enhance local contrast.) and powerful 3DNR X,C interface. It makes the dynamic range significantly improved, the overall scene is clearer, more hierarchical. It can catch all the details you need in high dynamic range scenes.


    • 8-Stage 3DNR

    8-Stage 3DNR is the latest denoising technology . It utilizes the 8-Stage filter denoising engine embedded in the chip. Compared with the general 4-Stage filter, it can realize the image denoising and enhancement simultaneously in the spatial-domain filtering process, as well as the blending of two different temporal modes in the temporal-domain filtering process. 8-Stage 3DNR also contains two IE modules for detail enhancement and one Sharpen module. Therefore, the 8-Stage 3NDR can achieve stronger denoising, stronger detail preservation and detail enhancement. Therefore, compared to our previous versions, the 8-Stage 3DNR is able to achieve clearer and sharper image quality in the static image area, on the other hand, it also has the capability to generate the clearer image quality for moving objects and in extreme low light conditions.


    • Pre-filtering Encoding Technique

    The temporal pumping artifact is a typical problem for video encoding which often occurred for IPC applications and seriously degrades the subjective video quality. The root cause of the pumping artifact lies in the video image quality discontinuity between I frames and their previous P frames. Our new technique “Pre-filtering Encoding Technique” can significantly reduce or eliminate the artifact. By performing the block level-based temporal filtering for I frames, their subjective video quality is maintained consistent with their previous P frames, hence the entire video sequence is encoded with relatively stable quality so that pumping artifact is barely seen during the playback.


    • CVBR(Constrained Variable Bit Rate)

    Constrained Variable Bit Rate (CVBR) is a rate control algorithm that minimizes the video quality fluctuation while conforming the target average bitrate and several instant bitrate constraints. In particular, these instant peak bitrate constraint and long-term average bitrate constraint guarantee the encoded bitstreams to be transmitted through a channel with a given bandwidth and/or stored in a device with specified volume or write speed. Under these constraints, an underlying Variable Bit Rate (VBR) control mechanism is employed to maximize picture quality over varying contents.

    Figure 1 illustrate the PSNR, bitrate and file size performance for the CVBR compared against other rate control algorithms including VBR, AVBR and CBR. In this example, a video sequence comprising of segments with varying motion intensity is encoded using these algorithms. While encoding a low motion segment like at the beginning of the video, the CVBR naturally achieves low bitrate similar to that of VBR and AVBR, and hence saved some bits compared with CBR. When encoding a segment with intensive motion like at the end of the sequence, the CVBR would use some of the previously saved bit budget to allow instant bitrate go reasonably higher than the target average bitrate while still meeting the constraint of the overall bitrate or filesize. Therefore, compared with other rate control algorithms, the CVBR can reduce video quality fluctuation and hence achieve better video quality for the highly intensive motion segments. Meanwhile, it is worth noting that average bitrate from the CVBR is often lower than the target long-term bitrate which is the one from the CBR.

    Home

  • 港媒:打工者乐队用艺术表现生活 2019-04-23
  • 日本大阪地震已致4人死亡 370多人受伤 2019-04-23
  • 测一测你是个怎样的人:这8幅图,你第一眼看到的是什么? 2019-04-17
  • 历时6载!“山西3女童猥亵被杀案”侦缉内幕曝光 2019-04-17
  • 盛世嘉园半夜狗叫声扰民哪个部门可以管 2019-04-13
  • 四川乐山公开审理新型贩毒案 2019-04-13
  • 萌萌哒童趣美食来袭 “六一”就给小朋友做这个 2019-03-22
  • 【理上网来·喜迎十九大】芬兰驻中国大使馆科技参赞:企业创新是中国式创新的核心 2019-03-22
  • 2018年高考江苏数学试卷及参考答案 2019-03-21
  • 火车南站能多设置几个停车和上下车提示牌吗? 2019-03-21
  • 李冰冰:深海潜水挑战极限 2019-03-21
  • 新鲜出炉!全国各地高考成绩查询、志愿填报时间表来了 2019-03-21
  • 甘肃警方破获一起“微信卖茶叶”特大新型网络诈骗案 2019-01-28
  • 酸味-热门标签-华商生活 2018-11-26
  • 阿来、麦家最近先后加入驻校作家行列 驻校作家做些什么 2018-11-26
  • 十一运夺金爱彩人彩票网 免费推广平台 澳洲幸运5开奖软件 排列组合计算公式 新时时彩贴吧 推筒子棋牌app 北京pk10计划 精选1注7星彩56期 北京赛车开奖软件盛世 快乐8注册 玩北京pk10输钱经历 大乐透开奖第14065 北京赛车pk10七码计划表 360时时彩 南国早报论坛 新时时彩单双玩法