topic Re: My object's depth varies from 1 mm to 10 mm. Which of the Real Sense camera is best suited for my requirement? Also help me with the details that are suited for my requirement by providing me the tolerance (error rate). in Items with no label https://community.intel.com/t5/Items-with-no-label/My-object-s-depth-varies-from-1-mm-to-10-mm-Which-of-the-Real/m-p/664566#M15360 <P>A recent discussion about trying to read the depth of a 2 mm polystyrene ball highlights the difficulties involved in sensing such small objects.</P><P>&nbsp;</P><P><A href="https://forums.intel.com/s/question/0D50P00004AwCefSAF/d415-depth-data-of-a-small-ball?language=en_US">https://forums.intel.com/s/question/0D50P00004AwCefSAF/d415-depth-data-of-a-small-ball?language=en_US</A></P><P>&nbsp;</P><P>It would therefore be ideal to position the camera as close to the tiny object as possible. The D435 model has the smallest minimum distance that the camera can be placed from the object, which is 0.2 m or 20 cm. The D415's minimum distance is 30 cm.</P><P>&nbsp;</P><P>The error factor of the 400 Series cameras varies over distance, and depending on the model. A recent Intel seminar said that "in general, over the same distance the D415 has 2 and a half times better resolution than the D435". However, at very close range to the object, the D415 and D435's error rate is likely to be similar.</P><P>&nbsp;</P><P>The chart below illustrates how RMS Error (depth noise) increases over distance for each model.</P><P>&nbsp;</P><P><span class="lia-inline-image-display-wrapper" image-alt="1.png"><img src="https://community.intel.com/t5/image/serverpage/image-id/1268iF1090BAF6459A05D/image-size/large?v=v2&amp;px=999&amp;whitelist-exif-data=Orientation%2CResolution%2COriginalDefaultFinalSize%2CCopyright" role="button" title="1.png" alt="1.png" /></span></P><P>&nbsp;</P><P>&nbsp;</P> Fri, 11 Jan 2019 21:46:31 GMT MartyG 2019-01-11T21:46:31Z My object's depth varies from 1 mm to 10 mm. Which of the Real Sense camera is best suited for my requirement? Also help me with the details that are suited for my requirement by providing me the tolerance (error rate). https://community.intel.com/t5/Items-with-no-label/My-object-s-depth-varies-from-1-mm-to-10-mm-Which-of-the-Real/m-p/664565#M15359 Fri, 11 Jan 2019 19:48:37 GMT https://community.intel.com/t5/Items-with-no-label/My-object-s-depth-varies-from-1-mm-to-10-mm-Which-of-the-Real/m-p/664565#M15359 JJivr 2019-01-11T19:48:37Z Re: My object's depth varies from 1 mm to 10 mm. Which of the Real Sense camera is best suited for my requirement? Also help me with the details that are suited for my requirement by providing me the tolerance (error rate). https://community.intel.com/t5/Items-with-no-label/My-object-s-depth-varies-from-1-mm-to-10-mm-Which-of-the-Real/m-p/664566#M15360 <P>A recent discussion about trying to read the depth of a 2 mm polystyrene ball highlights the difficulties involved in sensing such small objects.</P><P>&nbsp;</P><P><A href="https://forums.intel.com/s/question/0D50P00004AwCefSAF/d415-depth-data-of-a-small-ball?language=en_US">https://forums.intel.com/s/question/0D50P00004AwCefSAF/d415-depth-data-of-a-small-ball?language=en_US</A></P><P>&nbsp;</P><P>It would therefore be ideal to position the camera as close to the tiny object as possible. The D435 model has the smallest minimum distance that the camera can be placed from the object, which is 0.2 m or 20 cm. The D415's minimum distance is 30 cm.</P><P>&nbsp;</P><P>The error factor of the 400 Series cameras varies over distance, and depending on the model. A recent Intel seminar said that "in general, over the same distance the D415 has 2 and a half times better resolution than the D435". However, at very close range to the object, the D415 and D435's error rate is likely to be similar.</P><P>&nbsp;</P><P>The chart below illustrates how RMS Error (depth noise) increases over distance for each model.</P><P>&nbsp;</P><P><span class="lia-inline-image-display-wrapper" image-alt="1.png"><img src="https://community.intel.com/t5/image/serverpage/image-id/1268iF1090BAF6459A05D/image-size/large?v=v2&amp;px=999&amp;whitelist-exif-data=Orientation%2CResolution%2COriginalDefaultFinalSize%2CCopyright" role="button" title="1.png" alt="1.png" /></span></P><P>&nbsp;</P><P>&nbsp;</P> Fri, 11 Jan 2019 21:46:31 GMT https://community.intel.com/t5/Items-with-no-label/My-object-s-depth-varies-from-1-mm-to-10-mm-Which-of-the-Real/m-p/664566#M15360 MartyG 2019-01-11T21:46:31Z Re: My object's depth varies from 1 mm to 10 mm. Which of the Real Sense camera is best suited for my requirement? Also help me with the details that are suited for my requirement by providing me the tolerance (error rate). https://community.intel.com/t5/Items-with-no-label/My-object-s-depth-varies-from-1-mm-to-10-mm-Which-of-the-Real/m-p/664567#M15361 <P>What is the <B>Subpixel </B>in the given Depth RMS error ?</P><P>&nbsp;</P> Tue, 15 Jan 2019 15:24:33 GMT https://community.intel.com/t5/Items-with-no-label/My-object-s-depth-varies-from-1-mm-to-10-mm-Which-of-the-Real/m-p/664567#M15361 JJivr 2019-01-15T15:24:33Z Re: My object's depth varies from 1 mm to 10 mm. Which of the Real Sense camera is best suited for my requirement? Also help me with the details that are suited for my requirement by providing me the tolerance (error rate). https://community.intel.com/t5/Items-with-no-label/My-object-s-depth-varies-from-1-mm-to-10-mm-Which-of-the-Real/m-p/664568#M15362 Hi JJivr, The 1/8 factor is just called the sub-pixel resolution. The resolution of the 16bit UINT datatype for Depth corresponds to 1/8 mm. When 1/8 mm is multiplied by 65535, which is the highest value of the 16bit UINT, you get the equivalent of 8m. Regards, Alexandra Thu, 17 Jan 2019 02:32:03 GMT https://community.intel.com/t5/Items-with-no-label/My-object-s-depth-varies-from-1-mm-to-10-mm-Which-of-the-Real/m-p/664568#M15362 Alexandra_C_Intel 2019-01-17T02:32:03Z