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    • 2

      在PYNQ-Z1上跑H.264 video encoder v2.0 demo
      问题反馈 | Comments & Feedback • • 20220704  

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    • J

      技术交流群
      交流讨论 | General Discussion • • jiru  

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      B

      please ask to me.
    • Y

      请问会提供xkISP在FPGA上运行的demo吗?
      xkISP • • yellowd  

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      B

      目前可以用U200/U250这种大容量FPGA运行的,带摄像头的FPGA目前还没找到合适的支持RAW数据输入的摄像头模块
    • L

      如何用catapult运行这个isp的c model
      xkISP • • lawrence404  

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      L

      找到了解决方案,src文件里的top.h可以选择catapult的数据结构.
    • C

      Any code manual for lsc module?
      xkISP • • changjian2007  

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    • Y

      H265 CABAC问题
      交流讨论 | General Discussion • • yangjiang1993  

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    • S

      在產生h264 pynq demo的bit stream碰到的問題
      交流讨论 | General Discussion • • swleungbrian  

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    • O

      ISP
      交流讨论 | General Discussion • • oliver爱吃辣  

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    • B

      开源H.264 Video Encoder IP Core V2.0 发布
      新闻文档 | News & Documents • • bo  

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      Y

      目前正在研讀, 看起來是很標準的作法.
    • 大

      执行makefile时,运行到csim_design时,提示缺少stdio.h
      xkISP • • 大聪明任驰骋  

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      K

      你好 1.stdio.h找不到的问题,可能是你的操作系统上一些c的标准库没有安装,导致gcc无法编译,这部分网上资料比较多,你可以去搜一搜如何安装 2.我们现在用的vitis版本是2021.2版本
    • H

      Vivado-ZYNQ7000测试IP
      交流讨论 | General Discussion • • hammer  

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    • L

      有说明文档吗
      交流讨论 | General Discussion • • lg08  

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    • Y

      H.264 External Memory Interface??
      交流讨论 | General Discussion • • yah1003us  

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    • B

      关于这个开源项目 from VIP Lab
      新闻文档 | News & Documents • h.265 开源项目 为什么 vip lab • • bo  

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      E

      @bo 谢谢范老师,已购买!真是又巧又幸运,我看出版日期还刚好是这个月,看来我是第一批读者啊:)
    • S

      H.265V2.0性能和使用问题
      交流讨论 | General Discussion • dd • • sly  

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      B

      是的 可以用在国产FPGA上,开源代码使用没有限制,是免费的
    • 林

      企业商务合作没有在主页上看到具体链接,请问是否有开通这个功能的计划?
      问题反馈 | Comments & Feedback • • 林炸虾  

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      B

      @林炸虾 欢迎联系 bo@xksilicon.com
    • X

      xk-ISP code manuals
      xkISP • • xiaowanwei  

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      K

      Raw Denoise The RAWDNS module implements image denoising on the raw domain.The the NLMs(Non-local Means) algorithm based on block matching is used for denoising. Parameter typedef struct{ uint6 sigma; //range[0-63] uint1 eb; //{0,1} uint7 Filterpara; //range[0-127] uint12 invksigma2; //1/ksigma2 <<12 }rawdns_register; Param sigma and Filterpara jointly control the intensity of the filtering.Param invksigma2 is the quantized reciprocal of the product of sigma and Filterpara。 Input & Ouput typedef stream_u12 Stream_t;//input raw data typedef stream_u12 Stream_t;//output rgb data Resources The algorithm uses a 11x11 window to complete the denoising process, and the storage resources are listed as follows uint12 rawdns_lines[10][8192];//10x8192 sram uint12 rawdns_block[11][11];// 11x11 registers Algorithm Function rawdns_process describes the block matching based NLM algorithm, and the main calculation process is the following loop. for(k=1;k<=9;k+=2){ for(l=1;l<=9;l+=2){ if((k!=5) || (l!=5)) { eur_distance = Cal_Eur_Distance(rawdns_block,k,l); diff = rawdns_max(eur_distance, sigma2); weight = Cal_weight(diff,rawdns_reg ,ksigma2); if(weight > max_weight) { max_weight = weight; } total_weight += weight; total_value += weight * rawdns_block[k][l]; } } } The Cal_Eur_Distance function calculates the Euclidean distance between different blocks, and cal_weight calculates the Gaussian weights of different pixels.Finally, according to the calculation result, the pixel value after denoising(usually center pixel of the window) is output. if(total_weight == 0) return rawdns_block[5][5]; else return rawdns_clip(total_value/total_weight);
    • R

      请问是否有开发H.265解码器的计划
      交流讨论 | General Discussion • • rinkeigou  

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      林

      @bo 老师你好,我想请问一下你的企业商务合作联系方式的多少呢?
    • A

      TGU:开源神经网络处理器
      TGU • • admin  

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      C

      请问是否有设计文档或者论文可以展示?
    • B

      xkISP - Open Source ISP IP Core
      代码发布 | OpenASIC Code Release • • bo  

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