lyuhaitao / dji_thermal_sdk

DJI SDK is used to generate therma images with different palettes and heatmaps.
https://lyuhaitao.github.io/dji_thermal_sdk/
Apache License 2.0
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dji-thermal-sdk 0.0.1 rjpeg_to_heatmap and DJI Thermal Analysis Tool 3 temperature values differ for same image #1

Open ZackLoken opened 1 year ago

ZackLoken commented 1 year ago

When comparing min,max range for heatmaps produced using dji-thermal-sdk 0.0.1 (64-bit windows version) and DJI Thermal Analysis Tool 3, the temperature ranges vary quite significantly. For example, dji-thermal-sdk 0.0.1 produces a heatmap with a range of 3.6 to 18.6, while DJI Thermal Analysis Tool 3 produces a heatmap with a range of 3.7 to 11.2. For the 100 images I've tested, there seems to consistently be at least a 5-degree difference in the temperature's upper limit between respective heatmaps produced for the same image.

See below for comparison using a sample image

dji-thermal-sdk 0.0.1: image

DJI Thermal Analysis Tool 3: image

R-JPEGs were collected using DJI Zenmuse H2OT.

lyuhaitao commented 1 year ago

Hello, Thanks. Frankly speaking, our research group meet the same problem. In fact, all we do is only to call the SDK from DJI to generate heat maps from DJI thermal images. We have reported the issue to DJI company. As for now, we get no reply from DJI.

ZhangJiaRed commented 9 months ago

Hello, have you solved this problem? I also reported this problem to the DJI technical department, and they said it was a problem with the DATA version, and it would be OK to update to the new version

johnsun123 commented 5 months ago

@ZhangJiaRed 大佬,请问您是否完成了该项目的配置并正常使用?能否请教您一些问题?感谢!

lyuhaitao commented 5 months ago

你好: 我所做的只是调用DJI的SDK去生成heat map, 我也没有搞明白为什么和官方工具生成的heatmap在像数值(代表温度)有差异。我们的团队项目只关注用图片去做分类和探测,所以我们到目前并没有解决这个问题。

Original

From:"johnsun123"< @.*** >;

Date:2024/1/18 9:55

To:"lyuhaitao/dji_thermal_sdk"< @.*** >;

CC:"HAITAO LYU"< @. >;"Comment"< @. >;

Subject:Re: [lyuhaitao/dji_thermal_sdk] dji-thermal-sdk 0.0.1rjpeg_to_heatmap and DJI Thermal Analysis Tool 3 temperature values differ forsame image (Issue #1)

@ZhangJiaRed 大佬,请问您是否完成了该项目的配置并正常使用?能否请教您一些问题?感谢!

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