WO2025040939 - LOCALIZATION USING NEURAL RADIANCE FIELDS
National phase entry is expected:
Publication Number
WO/2025/040939
Publication Date
27.02.2025
International Application No.
PCT/IB2023/058383
International Filing Date
23.08.2023
Title **
[English]
LOCALIZATION USING NEURAL RADIANCE FIELDS
[French]
LOCALISATION À L'AIDE DE CHAMPS DE RADIANCE NEURONAUX
Applicants **
NOKIA SOLUTIONS AND NETWORKS OY
Inventors
JOZSA, Csaba Mate
FARKAS, Lóránt
Application details
| Total Number of Claims/PCT | * |
| Number of Independent Claims | * |
| Number of Priorities | * |
| Number of Multi-Dependent Claims | * |
| Number of Drawings | * |
| Pages for Publication | * |
| Number of Pages with Drawings | * |
| Pages of Specification | * |
| * | |
| Number of Office Actions | * |
| * | |
International Searching Authority |
EPO
* |
| Recordal of a Change of the Applicant's Name/Address |
Change of Applicant's Name and Address
* |
| Type of Assignment |
The Standard Agent's Assignment
* |
| Applicant's Legal Status |
Legal Entity
* |
| * | |
| * | |
| * | |
| * | |
| * | |
| Entry into National Phase under |
Chapter I
* |
| Patent Delivery |
Send the Letters Patent by Courier
* |
| Translation |
|
* The data is based on automatic recognition. Please verify and amend if necessary.
** IP-Coster compiles data from publicly available sources. If this data includes your personal information, you can contact us to request its removal.
Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing, Examination, Granting | 3519 | |
| EPO | Filing, Examination, Granting | 39687 | |
| Japan | Filing, Examination, Granting | 3544 | |
| South Korea | Filing, Examination, Granting | 4809 | |
| USA | Filing, Examination, Granting | 15140 |
Total:
66,699
The term for entry into the National Phase has expired. This quotation is for informational purposes only
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Abstract[English]
A method includes estimating, for a captured image and depth map, a preliminary pose of a setting the preliminary pose as an estimated pose, and repeatedly: generating a generated image and depth map using the estimated pose and a NeRF; calculating a loss function based on a difference between the captured image and the generated image and between the captured depth map and the generated depth map; determining the first estimated pose such that the loss function is reduced. The method further includes terminating the repeatedly generating etc. if the loss function is less than a threshold, and outputting the estimated pose as the pose of the camera.[French]
Un procédé selon l'invention comprend l'estimation, pour une image et une carte de profondeur capturées, d'une pose préliminaire et la définition de la pose préliminaire en tant que pose estimée et, de manière répétée : la génération d'une image et d'une carte de profondeur générées à l'aide de la pose estimée et d'un NeRF ; le calcul d'une fonction de perte sur la base d'une différence entre l'image capturée et l'image générée et entre la carte de profondeur capturée et la carte de profondeur générée ; la détermination de la première pose estimée de telle sorte que la fonction de perte est réduite. Le procédé comprend en outre l'interruption de la génération répétée etc. si la fonction de perte est inférieure à un seuil, et la fourniture en sortie de la pose estimée en tant que pose de la caméra.