US20100118153A1 - Apparatus and methods for controlling image sensors - Google Patents

Apparatus and methods for controlling image sensors Download PDF

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Publication number
US20100118153A1
US20100118153A1 US12/487,875 US48787509A US2010118153A1 US 20100118153 A1 US20100118153 A1 US 20100118153A1 US 48787509 A US48787509 A US 48787509A US 2010118153 A1 US2010118153 A1 US 2010118153A1
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United States
Prior art keywords
image sensor
computer
configuration data
module
computer unit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US12/487,875
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English (en)
Inventor
Xiaoguang Yu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
O2Micro Inc
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O2Micro Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by O2Micro Inc filed Critical O2Micro Inc
Priority to US12/487,875 priority Critical patent/US20100118153A1/en
Assigned to O2MICRO, INC. reassignment O2MICRO, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: YU, XIAOGUANG
Priority to CN2009201614221U priority patent/CN201629798U/zh
Priority to CN2009101506950A priority patent/CN101739363B/zh
Priority to CN2009101495369A priority patent/CN101742113B/zh
Priority to JP2009241405A priority patent/JP2010119103A/ja
Priority to TW098138345A priority patent/TWI507027B/zh
Priority to TW098138346A priority patent/TWI419047B/zh
Publication of US20100118153A1 publication Critical patent/US20100118153A1/en
Abandoned legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H04N23/66—Remote control of cameras or camera parts, e.g. by remote control devices

Definitions

  • the image sensor 130 can capture optical image signals and can convert the captured optical image signals to analog electrical image signals. Moreover, the image sensor 130 can receive a reference clock generated by an oscillator 131 and can convert the analog electrical image signals to digital raw image signals according to the reference clock.
  • the camera controller 110 can also include an image processor 114 for processing the raw image signals into color-corrected images in a standard image file format.
  • the camera controller 110 further includes a USB video class (UVC) component (hardware) 115 used to indicate that the image sensor 130 belongs to a video class when the image sensor 130 is coupled to the computer 120 .
  • the UVC component 115 can be used to enable communications between the image sensor 130 and a computer program of the computer 120 .
  • an operating system e.g., Microsoft® Windows
  • an operating system e.g., Microsoft® Windows
  • the computer 120 can include multiple USB device drivers for supporting various types of USB devices such as audio class devices, video class devices, and printer class devices, respectively.
  • a UVC device driver of the operating system can be employed to interact with the computer program and the image sensor 130 .
  • the image sensor 130 can interact with the computer program via the UVC device driver. Therefore, communications between the image sensor 130 and a computer program of the computer 120 can be enabled.
  • FIG. 5 illustrates a flowchart of operations performed by a camera controller, in accordance with one embodiment of the present invention.
  • Computer-usable media may comprise computer storage media and communication media.
  • Computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer-readable instructions, data structures, program modules or other data.
  • Computer storage media includes, but is not limited to, random access memory (RAM), read only memory (ROM), electrically erasable programmable ROM (EEPROM), flash memory or other memory technology, compact disk ROM (CD-ROM), digital versatile disks (DVDs) or other optical storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to store the desired information.
  • Embodiments in accordance with the present disclosure provide a camera controller in a computer-connected camera system for controlling an image sensor.
  • one or more hardware blocks in the conventional camera system can be substituted with computer-executable program modules, such that the size and cost of the camera system can be reduced and the efficiency can be improved.
  • memory of a computer unit can store multiple configuration data sets indicative of settings of different types of image sensors respectively, which can be used to configure multiple image sensors without changing hardware configurations of the camera controller.
  • the computer unit 210 includes a bus 262 and a processor 264 (e.g., a central processing unit) coupled to the bus 262 .
  • the bus 262 can include, but is not limited to, a data bus, an address bus, or a control bus, and is capable of transferring information, e.g., data, instructions, address information, or control commands, in the computer unit 210 .
  • the processor 264 can process various tasks and execute various instructions.
  • the computer unit 210 further includes computer-readable media such as a main memory 266 coupled to the bus 262 , a read only memory (ROM) 268 coupled to the bus 262 , and a storage device 270 coupled to the bus 262 .
  • main memory 266 coupled to the bus 262
  • ROM read only memory
  • storage device 270 coupled to the bus 262 .
  • the camera controller 220 coupled to the image sensor 230 can control the image acquisition function of the image sensor 230 .
  • the camera controller 220 can include a driver application 250 and a communication medium 240 .
  • the driver application 250 can be stored in the storage device 270 of the computer unit 210 .
  • the driver application 250 may be stored in another computer-readable medium such as the ROM 268 or the main memory 266 .
  • the driver application 250 can include program modules having instructions and data for controlling the image sensor 230 .
  • the communication medium 240 coupled between the image sensor 230 and the communication interface 272 of the computer unit 210 is operable for connecting the image sensor 230 to the computer unit 210 .
  • the communication medium 240 can interface with the computer unit 210 according to a communication protocol such as a universal serial bus (USB) protocol or a 1394 protocol, etc.
  • the communication medium 240 can interface with the image sensor 230 according to another communication protocol, such as an inter-integrated circuit (I 2 C) bus protocol or a serial camera control bus (SCCB) protocol.
  • I 2 C inter-integrated circuit
  • SCCB serial camera control bus
  • the image sensor 230 can support I 2 C/SCCB protocol.
  • the communication medium 240 also provides protocol conversion, e.g., between USB and I 2 C/SCCB.
  • the driver application 250 includes a configuration module, in one embodiment. However, the invention is not so limited; the driver application 250 can include other software modules according to system needs. In the example of FIG. 3 , the driver application 250 can include a data file 320 , a configuration module 322 , a device driver module 324 , an image processing module 326 , and a power saving module 328 .
  • the driver application 250 can be stored in a computer-readable medium, e.g., the storage device 270 , of the computer unit 210 .
  • the driver application 250 includes computer-readable data and/or computer-executable instructions.
  • the data file 320 can include multiple configuration data sets indicative of settings of different image sensors, respectively.
  • the configuration module 322 can be executed by the processor 264 to configure the image sensor 230 according to a corresponding configuration data set.
  • the configuration module 322 can be executed by the processor 264 to configure each of the image sensors according to a corresponding configuration data set contained in the data file 320 .
  • the computer unit 210 can configure the image sensor with the corresponding configuration data set
  • the camera system 200 can support various types of image sensors without changing hardware configurations of the camera controller 220 , in one embodiment.
  • the device driver module 324 in the driver application 250 can be executed by the processor 264 to enable communications between the computer unit 210 and the image sensor 230 .
  • the device driver module 324 can enable communications between a computer program of the computer unit 210 and the image sensor 230 .
  • the computer program can be an upper level computer program that interacts with users, such as Microsoft® Windows or can be user-mode applications such as Microsoft Network (MSN) application.
  • MSN Microsoft Network
  • the computer program can call the device driver module 324 .
  • the device driver module 324 can enable the computer program to interact with the image sensor 230 by establishing communications between the communication interface 272 and the communication medium 240 .
  • the image processing module 326 can be executed by the processor 264 to perform digital graphic processing on the digital image signals (e.g., the digital raw image signals) from the image sensor 230 . More specifically, the image processing module 326 can be executed to adjust the image attributes, e.g., the brightness, color, saturation, noise-signal ratio, etc., of the digital image signals (e.g., the digital raw image signals) by various digital processing technologies such as geometric transformation, color processing, image composite, image denoising, image enhancement, etc.
  • image attributes e.g., the brightness, color, saturation, noise-signal ratio, etc.
  • the communication medium 240 further includes a USB interface.
  • the USB interface includes a USB physical layer (PHY) 402 , a USB device controller 404 , and an I 2 C bus 406 , and is operable for transferring data in accordance with a USB protocol standard, in one embodiment.
  • the communication medium 240 can have many other configurations and is not limited to the configuration in the example of FIG. 4 .
  • the camera system 400 can reduce the cost and improve the efficiency by removing some hardware blocks in the conventional camera system, e.g., the oscillator 131 , the E 2 PROM 140 , the image processor 114 , and the UVC component 115 in FIG. 1 .
  • a configuration module e.g., the configuration module 322
  • a computer-readable medium e.g., the storage device 270
  • the configuration module can be executed by the computer unit 210 to select the configuration data set indicative of settings of the image sensor 230 from the multiple configuration data sets according to an identification or type of the image sensor 230 .

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Studio Devices (AREA)
US12/487,875 2008-11-12 2009-06-19 Apparatus and methods for controlling image sensors Abandoned US20100118153A1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
US12/487,875 US20100118153A1 (en) 2008-11-12 2009-06-19 Apparatus and methods for controlling image sensors
CN2009201614221U CN201629798U (zh) 2008-11-12 2009-06-29 控制图像传感器的设备
CN2009101506950A CN101739363B (zh) 2008-11-12 2009-06-29 控制图像传感器的设备及其方法
CN2009101495369A CN101742113B (zh) 2008-11-12 2009-07-02 图像传感器的控制装置和控制方法
JP2009241405A JP2010119103A (ja) 2008-11-12 2009-10-20 イメージセンサを制御するための装置及び方法
TW098138345A TWI507027B (zh) 2008-11-12 2009-11-12 照相機控制器、控制影像感測器的方法、照相機系統及電腦系統
TW098138346A TWI419047B (zh) 2008-11-12 2009-11-12 控制影像感測器之裝置、方法及其電腦可讀媒體

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US19892108P 2008-11-12 2008-11-12
US12/487,875 US20100118153A1 (en) 2008-11-12 2009-06-19 Apparatus and methods for controlling image sensors

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US20100118153A1 true US20100118153A1 (en) 2010-05-13

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US12/487,875 Abandoned US20100118153A1 (en) 2008-11-12 2009-06-19 Apparatus and methods for controlling image sensors

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US (2) US8466974B2 (zh)
JP (2) JP2010119103A (zh)
CN (3) CN201629798U (zh)
TW (2) TWI507027B (zh)

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US20140092264A1 (en) * 2012-09-28 2014-04-03 Samsung Electronics Co. Ltd. Method for controlling camera and mobile device
US20150288930A1 (en) * 2014-04-08 2015-10-08 Samsung Techwin Co., Ltd. Network security system and method thereof
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CN111272780A (zh) * 2020-02-12 2020-06-12 京东方科技集团股份有限公司 一种x光图像的采集方法及x光采集系统
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TWI569622B (zh) * 2014-05-29 2017-02-01 華碩電腦股份有限公司 影像控制方法及應用該影像控制方法的行動裝置及電腦裝置
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CN104994270A (zh) * 2015-08-06 2015-10-21 麦格纳斯太尔汽车技术（上海）有限公司 一种低照度环境下车载摄像头图像处理系统
CN105376481B (zh) * 2015-10-08 2018-11-09 珠海全志科技股份有限公司 摄像装置驱动方法及摄像装置的驱动装置
CN105430276A (zh) * 2015-12-18 2016-03-23 广东欧珀移动通信有限公司 成像装置和电子装置
CN105677434B (zh) * 2016-03-18 2021-02-26 格科微电子（上海）有限公司 图像传感器的otp烧录方法
CN105933599B (zh) * 2016-04-25 2018-10-02 中国科学院西安光学精密机械研究所 集成化多模式科学级ccd图像控制系统及方法
CN109238361A (zh) * 2018-09-20 2019-01-18 宁波水表股份有限公司 一种智能水务终端
CN110984267A (zh) * 2019-06-29 2020-04-10 三一重机有限公司 挖掘机的压力控制方法、装置、控制器及可读存储介质
CN114979416A (zh) * 2021-02-25 2022-08-30 瑞昱半导体股份有限公司 图像系统单芯片、包含其的图像获取系统及图像获取方法
CN116095436B (zh) * 2023-04-10 2023-06-30 南京予芯科技有限公司 一种自适应车载摄像头驱动方法

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CN111272780A (zh) * 2020-02-12 2020-06-12 京东方科技集团股份有限公司 一种x光图像的采集方法及x光采集系统

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TW201019216A (en) 2010-05-16
CN201629798U (zh) 2010-11-10
JP2010119105A (ja) 2010-05-27
JP2010119103A (ja) 2010-05-27
TW201019717A (en) 2010-05-16
TWI419047B (zh) 2013-12-11
CN101742113A (zh) 2010-06-16
CN101742113B (zh) 2013-11-20
CN101739363B (zh) 2013-03-20
TWI507027B (zh) 2015-11-01
US8466974B2 (en) 2013-06-18
CN101739363A (zh) 2010-06-16
US20100118169A1 (en) 2010-05-13

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