Raw Camera Data Object Detectors: An Optimisation for Automotive Video Processing and Transmission

Whilst Deep Neural Networks (DNNs) have been developing swiftly, most of the research has been focused on videos based on RGB frames. RGB data has been traditionally optimised for human vision and is a highly re-elaborated and interpolated version of the collected raw data. In fact, the sensor colle...

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Main Authors: Pak Hung Chan, Chuheng Wei, Anthony Huggett, Valentina Donzella
Format: Article
Language:English
Published: IEEE 2025-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/10839399/
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author Pak Hung Chan
Chuheng Wei
Anthony Huggett
Valentina Donzella
author_facet Pak Hung Chan
Chuheng Wei
Anthony Huggett
Valentina Donzella
author_sort Pak Hung Chan
collection DOAJ
description Whilst Deep Neural Networks (DNNs) have been developing swiftly, most of the research has been focused on videos based on RGB frames. RGB data has been traditionally optimised for human vision and is a highly re-elaborated and interpolated version of the collected raw data. In fact, the sensor collects the light intensity value per pixel, but an RGB frame contains 3 values, for red, green, and blue colour channels. This conversion to RGB requires computational resource, time, power, and increases by a factor of three the amount of output data. This work investigates DNN based detection using (for training and evaluation) Bayer frames, generated from a benchmarking automotive dataset (i.e. KITTI dataset). A Deep Neural Network (DNN) is deployed in an unmodified form, and also modified to accept only single channel frames, such as Bayer frames. Eleven different re-trained versions of the DNN are produced, and cross-evaluated across different data formats. The results demonstrate that the selected DNN has the same accuracy when evaluating RGB or Bayer data, without significant degradation in the perception (the variation of the Average Precision is <1%). Moreover, the colour filter array position and the colour correction matrix do not seem to contribute significantly to the DNN performance. This work demonstrates that Bayer data can be used for object detection in automotive without significant perception performance loss, allowing for more efficient sensing-perception systems.
format Article
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institution Kabale University
issn 2169-3536
language English
publishDate 2025-01-01
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spelling doaj-art-2e77d8471ae847d281ae1a682fe583d32025-02-07T00:01:52ZengIEEEIEEE Access2169-35362025-01-0113216952170610.1109/ACCESS.2025.352928710839399Raw Camera Data Object Detectors: An Optimisation for Automotive Video Processing and TransmissionPak Hung Chan0https://orcid.org/0000-0003-1705-5430Chuheng Wei1https://orcid.org/0000-0002-0747-9398Anthony Huggett2Valentina Donzella3https://orcid.org/0000-0002-3408-6135WMG, The University of Warwick, Coventry, U.K.WMG, The University of Warwick, Coventry, U.K.onsemi, Greenwood House, Bracknell, U.K.WMG, The University of Warwick, Coventry, U.K.Whilst Deep Neural Networks (DNNs) have been developing swiftly, most of the research has been focused on videos based on RGB frames. RGB data has been traditionally optimised for human vision and is a highly re-elaborated and interpolated version of the collected raw data. In fact, the sensor collects the light intensity value per pixel, but an RGB frame contains 3 values, for red, green, and blue colour channels. This conversion to RGB requires computational resource, time, power, and increases by a factor of three the amount of output data. This work investigates DNN based detection using (for training and evaluation) Bayer frames, generated from a benchmarking automotive dataset (i.e. KITTI dataset). A Deep Neural Network (DNN) is deployed in an unmodified form, and also modified to accept only single channel frames, such as Bayer frames. Eleven different re-trained versions of the DNN are produced, and cross-evaluated across different data formats. The results demonstrate that the selected DNN has the same accuracy when evaluating RGB or Bayer data, without significant degradation in the perception (the variation of the Average Precision is <1%). Moreover, the colour filter array position and the colour correction matrix do not seem to contribute significantly to the DNN performance. This work demonstrates that Bayer data can be used for object detection in automotive without significant perception performance loss, allowing for more efficient sensing-perception systems.https://ieeexplore.ieee.org/document/10839399/Bayer dataobject detectionperception sensorsassisted and automated drivingintelligent vehicles
spellingShingle Pak Hung Chan
Chuheng Wei
Anthony Huggett
Valentina Donzella
Raw Camera Data Object Detectors: An Optimisation for Automotive Video Processing and Transmission
IEEE Access
Bayer data
object detection
perception sensors
assisted and automated driving
intelligent vehicles
title Raw Camera Data Object Detectors: An Optimisation for Automotive Video Processing and Transmission
title_full Raw Camera Data Object Detectors: An Optimisation for Automotive Video Processing and Transmission
title_fullStr Raw Camera Data Object Detectors: An Optimisation for Automotive Video Processing and Transmission
title_full_unstemmed Raw Camera Data Object Detectors: An Optimisation for Automotive Video Processing and Transmission
title_short Raw Camera Data Object Detectors: An Optimisation for Automotive Video Processing and Transmission
title_sort raw camera data object detectors an optimisation for automotive video processing and transmission
topic Bayer data
object detection
perception sensors
assisted and automated driving
intelligent vehicles
url https://ieeexplore.ieee.org/document/10839399/
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AT chuhengwei rawcameradataobjectdetectorsanoptimisationforautomotivevideoprocessingandtransmission
AT anthonyhuggett rawcameradataobjectdetectorsanoptimisationforautomotivevideoprocessingandtransmission
AT valentinadonzella rawcameradataobjectdetectorsanoptimisationforautomotivevideoprocessingandtransmission