2 Replies Latest reply on Sep 5, 2018 3:52 PM by Intel Corporation

    RealSense D435 color image capture quality

    arunc

      As seen in the image below, the capture quality in the RGB camera is not good with backlight. Imaging capturing with sunlight in the background - I'm not optimistic. Axis cameras have WDR capability which solves this entirely.

       

      Does RealSense D435 have such a configuration? Does the sensor support HDR or WDR? I couldn't find any such configuration in GitHub - IntelRealSense/librealsense: Intel® RealSense™ SDK

      arun-lighting_Color_Color_Color.png

        • 1. Re: RealSense D435 color image capture quality
          MartyG

          I could find no evidence that the 400 Series cameras have HDR (High Dynamic Range) or WDR (Wide Dynamic Range).  The only mention of HDR is in terms of an Intel article containing an analysis of the rationale for choosing parts for the RealSense camera range.  Features like HDR are apparently supported in cameras with more expensive CMOS sensors.

           

          To quote the article:  "if long range and high quality are paramount and the product is less sensitive price, it will be possible to use higher performance CMOS sensors (higher dynamic range, more sensitivity and higher quality) as well as better and larger optics so that the input images are of high quality.  In the other extreme where cost and size are critical, it is possible to use small baseline, cheap consumer-grade CMOS sensors, and plastic optics".

           

          The 400 Series cameras do though have a component called the Vision Processor D4 that enables the camera to perform well in outdoor sunlight.

          • 2. Re: RealSense D435 color image capture quality
            Intel Corporation
            This message was posted on behalf of Intel Corporation

            Hi Arun,
            Getting much better quality with the RGB camera with a backlit scene would be a challenge. However, there are RGB controls like Gain and Exposure that you can modify to slightly improve RGB capture quality. 


            Regards,
            Sahira