Canon Kabushiki Kaisha

Canon Research Centre France

Eric Nassor

Frédéric Maze

Pascal Viger

Hervé Ruellan

Naël Ouedraogo

Julien Sevin

Hervé Le Floch

Ioana Donescu

Brice Le Houerou

Jonathan Taquet

Xavier Henocq

Lionel Tocze

Lilian Labelle

Isabelle Morvan

Karine Renout

Franck Denoual

Fabrice Le Leannec

Jean Le Feuvre

Naél Ouedraogo

Naël Quedraogo

According to some embodiments of the disclosure, it is provided a method of communication in an intelligent transport system, ITS. After having perceived an object within an area monitored by the ITS-S, at a first given time, an estimation of a state of the object is obtained at a second given time, if the object is no longer perceived by the ITS-S at the second given time and a Collective Perception Message, CPM, comprising items of information related to the estimated state of the object is transmitted.

Communication within an intelligent transport system for signaling hidden objects

A communication method for an Intelligent Transport System (ITS) comprising at least one first transmitting ITS station, the method taking place at the first transmitting ITS station including transmitting a second Collective Perception Message (CPM) comprising at least one identifier of a first element previously transmitted in a first CPM, the first element being not present in the second CPM.

Enhanced reporting in CPM based on layered cost map

The present invention regards Cooperative Intelligent Transportation Systems, C-ITS. In response to detecting at least one situation involving at least one object detected within an area monitored by the ITS, a Collective Perception Message, CPM, is generated and transmitted. The CPM comprises a reference to the at least one object and an indication to indicate that the at least one object is involved in the at least one situation.

Communication within an intelligent transport system

According to embodiments, the invention provides a method for encapsulating partitioned timed media data comprising timed samples, comprising in turn subsamples, the timed samples being grouped into groups, the method comprising: obtaining spatial tracks, each spatial track comprising at least one subsample of a first timed sample and one corresponding subsample of the other timed samples, the corresponding subsamples being located at the same spatial position in its own timed sample as the at least one subsample; creating a base track referencing at least some of the spatial tracks, the base track comprising reconstruction instructions, each of the reconstruction instructions being associated with a group of timed samples, enabling generating a portion of a bit-stream from subsamples of spatial tracks, that belong to a same group of timed samples; and independently encapsulating each of the tracks in a least one media file.

Method, device, and computer program for improving encapsulation of media content

According to some embodiments, there is provided a Collective Perception Message, CPM, characterizing a plurality of Vulnerable Road Users based on a plurality of received VAMs, thereby allowing an ITS station to efficiently aggregate VAM messages from VRUs and retransmit information about the VRUs to other ITS stations. Consequently, the security is improved as some ITS stations may not be able to detect or identify VRU stations by themselves but thanks to the CPM, these stations can still be informed of the VRUs. According to other aspects, congestion is avoided while maintaining safety vis-à-vis VRUs thanks to the use of a different transmission scheme when the VRU is already characterized in a CPM sent to the ITS stations. Also, a receiving station can evaluate whether the content of a CPM can be trusted or not. Safety is thus improved. This is achieved thanks to the CPM that references a certificate.

Communication methods and devices in intelligent transport systems

According to some embodiments, there is provided a Collective Perception Message, CPM, characterizing a plurality of Vulnerable Road Users based on a plurality of received VAMs, thereby allowing an ITS station to efficiently aggregate VAM messages from VRUs and retransmit information about the VRUs to other ITS stations. Consequently, the security is improved as some ITS stations may not be able to detect or identify VRU stations by themselves but thanks to the CPM, these stations can still be informed of the VRUs. According to other aspects, congestion is avoided while maintaining safety vis-&#xe0;-vis VRUs thanks to the use of a different transmission scheme when the VRU is already characterized in a CPM sent to the ITS stations. Also, a receiving station can evaluate whether the content of a CPM can be trusted or not. Safety is thus improved. This is achieved thanks to the CPM that references a certificate.

The present invention relates to a method for managing copies of media samples recorded by a given network camera of a system comprising a plurality of interconnected network cameras, the method comprising the following steps:

Managing copies of media samples in a system having a plurality of interconnected network cameras

A method for enabling control, by a control device, of a video camera in a video surveillance system comprising a plurality of video cameras is disclosed. According to the method, first a signature of the control device is obtained from the control device. Information corresponding to the signature of the control device from a video stream generated by a video camera of the system is identified, and the control device is associated with the video camera that generated the video stream in which information corresponding to the signature of the control device has been identified, thereby enabling control of the video camera by the control device.

Method and system for enabling control, by a control device, of a video camera in a video surveillance system

A method and device for partitioning an image for transmission of one or more regions of interest of said image, the image being composed of coding units, the method comprising:

Method and device for partitioning an image

A method of sending a data stream of video images between a server and at least one client device in a communication network, employing a rate setting for the sending of data over the communication network, the method comprising the following steps:

Method of sending data and associated device

The reception method is implemented in a receiver apparatus receiving images of a video sequence having undergone losses during an exchange of data with a sender apparatus connected to said receiver apparatus via a communication network. The receiver apparatus comprises at least a first module implementing a transport layer and a second module implementing an application layer, the application layer being subdivided into a first sub-module implementing the decoding of the video and a second sub-module implementing the display of said video. The method comprises the following steps:

Method and apparatus for receiving images having undergone losses during transmission

A video consisting of data organized in the form of a plurality of images is transmitted in a communication network. The method comprises a step of coding images with motion compensation, which consists in compressing the images of the video and in creating dependencies between compressed images, a step of scheduling the transmission of packets representing the compressed images, which consists in sending the compressed images over the network in a selected order, and a step of controlling the rate of the video. At least one of reconsidering the selected order of sending already compressed but not yet transmitted images and deleting at least one compressed image is performed at the time of coding a new image. Furthermore, the dependencies between the new image to be compressed and the compressed images are selected by taking into account the reconsidered sending order at the time of coding the new image.

Method and device for transmitting variable rate video data

The method of computing the available space in a packet for data stream transport comprises:

Method and device for computing the available space in a packet for data stream transport

The invention relates to a method of processing digital data constituting a signal in a distributed communication network comprising a plurality of communication apparatuses, the signal being identified by a unique identifier (ID), characterized in that the method comprises the following steps:

Method and device for processing digital data with a unique identifier

A sequence of digital images encoded according to a predictive format is decoded using encoded auxiliary data which is representative of at least part of the sequence of digital images. A current encoded image, received with at least one detected error, is decoded. The decoding includes applying an error concealment decoding on at least part of the current encoded image containing such a detected error to obtain a first decoded image. An item of information representative of reconstruction errors is obtained based upon a reconstruction confidence of the error concealment decoding for at least one pixel of the error-containing part of the current image. The encoded auxiliary data and the first decoded image are processed based upon the item of information representative of reconstruction errors to obtain corrected auxiliary data. The first decoded image is modified to obtain a second decoded image based upon the corrected auxiliary data.

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Thorigne Fouillard, France

Eric Nassor