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1. WO2016149894 - WORKLOAD SCHEDULER FOR COMPUTING DEVICES WITH CAMERA

Publication Number WO/2016/149894
Publication Date 29.09.2016
International Application No. PCT/CN2015/074836
International Filing Date 23.03.2015
IPC
H04N 5/225 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
5Details of television systems
222Studio circuitry; Studio devices; Studio equipment
225Television cameras
CPC
G06F 9/4881
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
9Arrangements for program control, e.g. control units
06using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
46Multiprogramming arrangements
48Program initiating; Program switching, e.g. by interrupt
4806Task transfer initiation or dispatching
4843by program, e.g. task dispatcher, supervisor, operating system
4881Scheduling strategies for dispatcher, e.g. round robin, multi-level priority queues
G06F 9/505
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
9Arrangements for program control, e.g. control units
06using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
46Multiprogramming arrangements
50Allocation of resources, e.g. of the central processing unit [CPU]
5005to service a request
5027the resource being a machine, e.g. CPUs, Servers, Terminals
505considering the load
H04N 5/2257
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
5Details of television systems
222Studio circuitry; Studio devices; Studio equipment ; ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, TV cameras, video cameras, camcorders, webcams, camera modules for embedding in other devices, e.g. mobile phones, computers or vehicles
225Television cameras ; ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, camcorders, webcams, camera modules specially adapted for being embedded in other devices, e.g. mobile phones, computers or vehicles
2257Mechanical and electrical details of cameras or camera modules for embedding in other devices
H04N 5/232
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
5Details of television systems
222Studio circuitry; Studio devices; Studio equipment ; ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, TV cameras, video cameras, camcorders, webcams, camera modules for embedding in other devices, e.g. mobile phones, computers or vehicles
225Television cameras ; ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, camcorders, webcams, camera modules specially adapted for being embedded in other devices, e.g. mobile phones, computers or vehicles
232Devices for controlling television cameras, e.g. remote control ; ; Control of cameras comprising an electronic image sensor;
H04N 5/23216
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
5Details of television systems
222Studio circuitry; Studio devices; Studio equipment ; ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, TV cameras, video cameras, camcorders, webcams, camera modules for embedding in other devices, e.g. mobile phones, computers or vehicles
225Television cameras ; ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, camcorders, webcams, camera modules specially adapted for being embedded in other devices, e.g. mobile phones, computers or vehicles
232Devices for controlling television cameras, e.g. remote control ; ; Control of cameras comprising an electronic image sensor;
23216Control of parameters, e.g. field or angle of view of camera via graphical user interface, e.g. touchscreen
H04N 5/23229
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
5Details of television systems
222Studio circuitry; Studio devices; Studio equipment ; ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, TV cameras, video cameras, camcorders, webcams, camera modules for embedding in other devices, e.g. mobile phones, computers or vehicles
225Television cameras ; ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, camcorders, webcams, camera modules specially adapted for being embedded in other devices, e.g. mobile phones, computers or vehicles
232Devices for controlling television cameras, e.g. remote control ; ; Control of cameras comprising an electronic image sensor;
23229comprising further processing of the captured image without influencing the image pickup process
Applicants
  • INTEL CORPORATION [US]/[US]
  • LIN, Yunbiao [CN]/[CN] (BZ)
  • DAI, Jianhui [CN]/[CN] (BZ)
  • LUO, Ning [CN]/[CN] (BZ)
  • CHEN, Chunbo [CN]/[CN] (BZ)
Inventors
  • LIN, Yunbiao
  • DAI, Jianhui
  • LUO, Ning
  • CHEN, Chunbo
Agents
  • NTD PATENT AND TRADEMARK AGENCY LIMITED
Priority Data
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) WORKLOAD SCHEDULER FOR COMPUTING DEVICES WITH CAMERA
(FR) PLANIFICATEUR DE CHARGE DE TRAVAIL POUR DISPOSITIFS INFORMATIQUES DOTÉS DE CAMÉRA
Abstract
(EN)
Techniques are disclosed to control a camera device such that memory contention and power consumption is reduced during video processing routines, generally referred to herein as media tasks. In particular, a workload scheduler is implemented in a camera HAL and is configured to dispatch captured image frames in an alternating manner between competing media tasks such that the processing of those image frames is performed sequentially, and thus, eliminates or otherwise mitigates memory contention. To this end, techniques variously disclosed herein can be used to enable low-cost, low-memory configured devices to perform concurrent media tasks on captured high-definition video at high framerates, without an undesirable decrease in performance and an increase in power consumption.
(FR)
La présente invention concerne des techniques afin de commander un dispositif de caméra de telle sorte qu'un conflit de mémoire et la consommation d'énergie est réduite au cours des routines de traitement vidéo, généralement désignées ici comme des tâches multimédia. En particulier, un planificateur de charge de travail est mis en œuvre dans une caméra HAL et est configuré pour envoyer des trames d'image capturées d'une manière alternée entre des tâches multimédia simultanées de telle sorte que le traitement de ces trames d'image est effectué séquentiellement, et, par conséquent, élimine ou autrement limite un cas de conflit de mémoire. À cet effet, l'invention concerne diverses techniques qui peuvent être utilisées pour permettre à des dispositifs configurés à faible mémoire, à faible coût, d'exécuter des tâches multimédia simultanées sur une vidéo à haute-définition capturée à fréquences de trames élevées, sans une diminution indésirable de performance et une augmentation de la consommation d'énergie.
Also published as
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