公开(公告)号：US12192652B2

公开(公告)日：2025-01-07

申请号：US18482117

申请日：2023-10-06

Applicant: STMicroelectronics France

Inventor： Valentin Rebiere ,  Antoine Drouot

IPC: H04N25/60 ,  H04N23/84 ,  H04N25/13 ,  H04N25/705

Abstract: An embodiment method for estimating a missing or incorrect value in a table of values generated by a photosite matrix comprises a definition of a zone of the table comprising the value to be estimated and other values, referred to as neighboring values, and an estimation of the value to be estimated based on the primary neighboring values and the weight associated with these primary neighboring values, wherein a weight of each neighboring value, referred to as primary neighboring value, of the same colorimetric component as that of the missing or incorrect value to be estimated, is determined according to differences between neighboring values disposed on an axis and neighboring values disposed parallel with this axis and positioned in relation to this axis on the same side as the primary neighboring value for which the weight is determined.

公开(公告)号：US12167142B2

公开(公告)日：2024-12-10

申请号：US17808667

申请日：2022-06-24

Applicant: STMicroelectronics (Research & Development) Limited ,  STMicroelectronics France

Inventor： Arnaud Bourge ,  Tanguy Le Dauphin ,  Antoine Drouot ,  Brian Douglas Stewart

IPC: H04N23/73 ,  H04N23/76

Abstract: In an embodiment an apparatus includes a scanning photographic sensor configured to acquire an image, according to an integration time of the sensor, of a scene illuminated with periodically emitted light pulses by a source, so that the image has a regular succession of bands with different luminosities when the integration time of the sensor is different from a period of the light pulses, a processor configured to generate a signature vector representative of the regular succession of bands with different luminosities being present in the image acquired by the photographic sensor, wherein the signature vector is independent of a reflectance of an objects of the scene and of a level of light in the scene, determine a frequency of the bands in the image on basis of the generated signature vector and determine the period of the pulses of the source on basis of the determined frequency of the bands in the image, and a controller configured to adjust the integration time of the photographic sensor so that the integration time is a multiple of the determined period of the light pulses of the source.