# Understand kitti output of inference?

**URL:** <https://forums.developer.nvidia.com/t/understand-kitti-output-of-inference/264514>\
**Category:** DeepStream SDK\
**Created:** [August 27, 2023, 4:23am UTC](https://forums.developer.nvidia.com/t/understand-kitti-output-of-inference/264514 "2023-08-27T04:23:42Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![johnminho](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@johnminho](https://forums.developer.nvidia.com/u/johnminho)\
**Post date:** [August 27, 2023, 4:23am UTC](https://forums.developer.nvidia.com/t/understand-kitti-output-of-inference/264514/1 "2023-08-27T04:23:42Z")

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I have a engine and use Deepstream app to run inference. I have custom parserbbox. I set `kitti_output_format` to save predictions.

Where can I find source code to save kitti format?

And saved predictions are information rght after parsetbbox. Is that right?

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**Author:** ![yuweiw](https://sea2.discourse-cdn.com/nvidia/user_avatar/forums.developer.nvidia.com/yuweiw/32/101255_2.png) [@yuweiw](https://forums.developer.nvidia.com/u/yuweiw)\
**Post date:** [August 28, 2023, 2:06am UTC](https://forums.developer.nvidia.com/t/understand-kitti-output-of-inference/264514/3 "2023-08-28T02:06:09Z")

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**There is no update from you for a period, assuming this is not an issue anymore. Hence we are closing this topic. If need further support, please open a new one. Thanks**

Please refer to our open source: `opt\nvidia\deepstream\deepstream-6.3\sources\apps\sample_apps\deepstream-app\deepstream_app.c`.

```auto
static void
write_kitti_output (AppCtx * appCtx, NvDsBatchMeta * batch_meta)

```

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<div class="post-metadata">

**Author:** ![system](https://sea2.discourse-cdn.com/nvidia/user_avatar/forums.developer.nvidia.com/system/32/68080_2.png) [@system](https://forums.developer.nvidia.com/u/system)\
**Post date:** [September 11, 2023, 7:55am UTC](https://forums.developer.nvidia.com/t/understand-kitti-output-of-inference/264514/4 "2023-09-11T07:55:45Z")

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