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    IMX307采用视频预览模式读取图片有延时

    Scheduled Pinned Locked Moved CS MIPI camera
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    • L Offline
      lyj
      last edited by

      IMX307使用视频预览模式,间隔10s取一张图(cap.read()一次),图片有极大的延时,该如何解决?是什么原因导致的延时?

      veye_xummV 1 Reply Last reply Reply Quote 0
      • veye_xummV Offline
        veye_xumm @lyj
        last edited by

        @lyj 请问你使用的主板是什么?

        Questions will be answered as soon as possible, please be patient.
        如果你使用中文,请直接用中文提问。
        May the force be with YOU. (This is the translation of the mysterious Chinese symbol above.)

        L 1 Reply Last reply Reply Quote 0
        • L Offline
          lyj @veye_xumm
          last edited by

          @veye_xumm jetson TX2

          veye_xummV 1 Reply Last reply Reply Quote 0
          • veye_xummV Offline
            veye_xumm @lyj
            last edited by

            @lyj 图片有极大的延时的意思是什么时刻到什么时刻的延时?

            Questions will be answered as soon as possible, please be patient.
            如果你使用中文,请直接用中文提问。
            May the force be with YOU. (This is the translation of the mysterious Chinese symbol above.)

            L 1 Reply Last reply Reply Quote 0
            • L Offline
              lyj @veye_xumm
              last edited by

              @veye_xumm 就是我取到的图片不是当下的图,是好多分钟前的一张图

              veye_xummV 1 Reply Last reply Reply Quote 0
              • veye_xummV Offline
                veye_xumm @lyj
                last edited by

                @lyj 应该是你的程序没有把V4l2 buffer中的图像取干净,滞留在buffer中了。
                建议改一下程序,触发完成,尝试循环取图几次,把buffer中的图像取干净。这样就不会造成buffer中的滞留问题。

                Questions will be answered as soon as possible, please be patient.
                如果你使用中文,请直接用中文提问。
                May the force be with YOU. (This is the translation of the mysterious Chinese symbol above.)

                L 2 Replies Last reply Reply Quote 0
                • L Offline
                  lyj @veye_xumm
                  last edited by

                  @veye_xumm 我用pickone这种,也会有buffer吗?那用不用这个不是没啥差异?就是pickmode设成0还是1都有buffer,没什么本质区别

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                  • L Offline
                    lyj @veye_xumm
                    last edited by

                    @veye_xumm 这个buffer可以修改吗?我希望buffer的长度是1,不要太多

                    veye_xummV 1 Reply Last reply Reply Quote 0
                    • veye_xummV Offline
                      veye_xumm @lyj
                      last edited by

                      @lyj 我说的这个buffer不是camera里面的buffer,而是jetson主板上为了接收图像而创建的buffer。 不能设置为1,需要有一定的冗余才好。

                      Questions will be answered as soon as possible, please be patient.
                      如果你使用中文,请直接用中文提问。
                      May the force be with YOU. (This is the translation of the mysterious Chinese symbol above.)

                      1 Reply Last reply Reply Quote 0

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