CN102739949A - Control method for multi-lens camera and multi-lens device - Google Patents
Control method for multi-lens camera and multi-lens device Download PDFInfo
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Abstract
Disclosed is an improved device provided with a multi-lens and multi-sensor camera module. The device has a new mechanism for adjusting multiple lenses and angles of sensors. The new device makes each lens integrated with perspective of the sensors by using a new principle so that images composited by a multi-lens module have high quality and satisfactory properties such as high resolution, high depth of field, high color saturation, high signal-to-noise ratio, high dynamic range, high sensitivity and the like.
Description
Background of invention
The present invention relates to a kind of instrument that has improved; This instrument comprises the many camera lenses that are installed in the same plane and the digital-code camera module of multisensor; Be installed in the brake on each transducer and the camera lens, and one is installed in and is used for the processor of view data of data processing and control on transducer and the brake.
Summary
This improved equipment has the camera model of many camera lenses and multisensor.This device has the new mechanism of many camera lenses of adjustment and transducer angle.This new equipment has used a new principle that the perspective view of each camera lens and transducer is merged mutually; The image synthetic by many camera lens modules has very high quality and gratifying characteristic, like high-resolution, and the high depth of field; High colorfulness; High s/n ratio, HDR, high sensitive and other characteristics.
Background
As everyone knows, one of most important information that the view data mankind obtain, and digital camera can directly obtain it with digital form.Yet from first relevant patent No.1582 that makes a video recording of the U.S. in 1840 promptly: the camera of Alexander Wolcott design, the design of camera is being arranged in single-lens and single-sensor setting always.Existing nowadays nearly all camera all has single-lens configuration.
Digital camera is widely known by the people in the prior art most.Increasing digital camera is also being included in mobile phone and other mobile device.In waiting people in the United States Patent(USP) No. 6,611,289 of " application in digital camera of many camera lenses and multisensor " by name, to invent many camera lenses and multisensor digital camera.In January, 1999 is in waiting people to apply for utilizing the patent of obtaining image with many mirrors and a plurality of transducer first.In this patent, a plurality of view data can be obtained, and final image can be made synthetic with image processor.
Kodak had applied for similar United States Patent (USP) afterwards, and the patent No. is No.7,305,180, and the patent that is entitled as " digital camera uses a plurality of camera lenses and imageing sensor that bigger zooming range is provided " of people such as Labaziewicz application.Another similar United States Patent (USP) is applied on December 15th, 04 by people such as Gruhlke, is entitled as " the multi-lens imaging system produces ceramic mosaic graphic pattern with the use optical filter "
The shortcoming of single-lens digital camera clearly.For example, in the single-lens plane that can only focus on certain distance.Though single-lensly can accurately focus on one and give set a distance; Successively decreasing away from focal length or the location drawing image sharpness that is bordering on focal length; In the depth of field (depth of field is meant that far and near two ends focus on the distance between the scenery clearly) scope, this unintelligible in certain range of views, be acceptable.
The depth of field depends on the distance of main body usually, lens focus, the size of lens focus ratio and pixel.It is generally controlled by focus and optical diffraction.If the main body distance confirms that the depth of field depends on body position and f-number substantially.For given focal distance ratio, the lengthening distance is perhaps used bigger focal length lens, will reduce the depth of field.
In some cases, preferably can make entire image all clear equally.For example, three-dimensional film photography or photography, the high clearly depth of field of extensive area and all objects, can make spectators choose at random object and picture arbitrarily details freely watch.Low depth of field problem possibly limit even influence the experience of viewing spectators to picture.Carry out this depth of field problem possibility quilt solution fully hardly in the picture three-dimensional process for single-lens or twin-lens.This problem can only alleviate through parameters such as accurate selection aperture and time for exposure.
Another shortcoming is single-lens and limited dynamic range (being designated hereinafter simply as DR) the single-sensor digital camera.Some technology can be used to alleviate these problems.Be to surround the image that exposure method is caught a plurality of different exposures the photo of HDR (hereinafter to be referred as HDR) technology (like figure [4]), be merged into a HDR image to image then through using.Yet this technology can not be used under the condition of the video or the rapid moving object of taking pictures.In other words, the instantaneous resolution of this method is low.But if with United States Patent(USP) No. 6,611,289 mentioned above, the camera of many camera lenses and multisensor can utilize the method for multiple-exposure at one time, produces to have flood tide details and high dynamic image.Originally the limitation of method has just been solved.
Summary of the present invention
The object of the invention provides better digital camera and camera system.Particularly the present invention has used many camera lenses and multisensor.This device can improve digital camera built-in in the mobile phone, and it is U.S. patent of invention No.6,611,289 continuity.
Characteristics of the present invention and advantage are that above-mentioned camera system can utilize a plurality of very little optical lens to replace single big optical lens and reaches same picture clarity effect.Simultaneously, this digital camera can be included in a mobile device and carried out data acquisition, calculates communications and amusement.This mobile device can be a radio telephone, mobile phone, the PMP (portable electronic device) of PDA (palmtop PC), field camera, portable computer or amusement equipment.
There is a processor to be included in the above-mentioned camera model in this instrument.The photo that this processor can Treatment Analysis have been taken is also controlled each single lens in the camera model.Analytic process in this just selected camera model.
The advantage of invention is that the user can freely be provided with the different pattern of camera in other words.Parameter such as camera mode and image quality index can adapt to adjustment automatically to adapt to condition of different.For example, this camera can be calibrated, and set makes a plurality of image sets synthesize the image that resolution is higher.Perhaps, it can be configured to the high sensitivity camera and suppresses noise.
Now concrete realization of the present invention is made an explanation with the exemplary plot mode, wherein:
The meaning of the different pictures of brief description
Fig. 1 is the block diagram of mobile communication equipment;
Fig. 2 has shown the facial configurations of mobile communication equipment;
Fig. 3 has shown the back structure of mobile communication equipment;
Fig. 4 shown one by having the liquid crystal display digital camera each catches the part set images displayed that imageing sensor is taken;
Fig. 5 shown the adjustment camera lens thermo-mechanical drive
This is a well-known technology, and the main functional modules of mobile device comprises following.
As shown in Figure 1, following points: base oneself upon wave band processor 120, RF (radio frequency) transceiver 126; Antenna 125, LCD 121, keyboard 124; Loud speaker 127, microphone 128, internal memory 116 and 122 (ROM and RCM) battery 123; Application processor 114, processor is used for image processing, and is used to control many camera lenses and multisensor camera in the present invention simultaneously.Imageing sensor is 103,105,107 and 109.102,104,106 and 108 is camera lenses.110,111,112 and 113 is cables of images information.Number of sensors is variable, and above-mentioned shown in Figure 1, it has nine camera lenses and transducer.115 un-added camera lens of expression and transducers.The 101st, the object that video camera is taken.
Fig. 2, this has shown the side that camera lens is arranged of mobile device, the fuselage of 201 mobile devices.The 202nd, the camera lens and the transducer of the whole visible light of reception.(F represents Quan Pu) the 203rd, the camera lens and the transducer of reception red spectrum.The 204th, the camera lens and the transducer of reception blue color spectrum.
Fig. 3 has shown the front end of mobile device, the 301st, and the fuselage of mobile device, the 302nd, receive and send the antenna of radio signal.The 303rd, display, it can LCD (liquid crystal display), to show these images that obtain and other various information that make more perfect function, like radio communication, media play, picture catching, or the like.
The present invention has two kinds of fundamental modes: image alignment and suture pattern and gain of quality pattern.Fig. 4 has shown traditional image of being caught by mobile device.401 images displayed are the general images that alignd and sewed up and form by the parts of images that each single lens and transducer are caught.402 are illustrated under the picture quality gain mode, and all camera lenses and transducer are caught same picture simultaneously, make the overlapping maximum that reaches of picture.
For image alignment and suture pattern, the user can be provided with a plurality of camera lenses, aims at a direction separately, and each transducer has covered the different piece of image, but can have some overlapping.Processor sends instruction and makes the image seamless link together, forms a high-definition picture.Should be pointed out that camera lens and transducer can regulate the zone that it aim to be taken automatically.The result who does like this makes the appropriate region can 6,611,289, and the camera of many camera lenses and multisensor can utilize the method for multiple-exposure at one time, produces to have flood tide details and high dynamic image.Originally the limitation of method has just been solved.
Summary of the present invention
The object of the invention provides better digital camera and camera system.Particularly the present invention has used many camera lenses and multisensor.This device can improve digital camera built-in in the mobile phone, and it is U.S. patent of invention No.6,611,289 continuity.
Characteristics of the present invention and advantage are that above-mentioned camera system can utilize a plurality of very little optical lens to replace single big optical lens and reaches same picture clarity effect.Simultaneously, this digital camera can be included in a mobile device and carried out data acquisition, calculates communications and amusement.This mobile device can be a radio telephone, mobile phone, the PMP (portable electronic device) of PDA (palmtop PC), field camera, portable computer or amusement equipment.
There is a processor to be included in the above-mentioned camera model in this instrument.The photo that this processor can Treatment Analysis have been taken is also controlled each single lens in the camera model.Analytic process in this just selected camera model.
The advantage of invention is that the user can freely be provided with the different pattern of camera in other words.Parameter such as camera mode and image quality index can adapt to adjustment automatically to adapt to condition of different.For example, this camera can be calibrated, and set makes a plurality of image sets synthesize the image that resolution is higher.Perhaps, it can be configured to the high sensitivity camera and suppresses noise.
Now concrete realization of the present invention is made an explanation with the exemplary plot mode, wherein:
The meaning of the different pictures of brief description
Fig. 1 is the block diagram of mobile communication equipment;
Fig. 2 has shown the facial configurations of mobile communication equipment;
Fig. 3 has shown the back structure of mobile communication equipment;
Fig. 4 shown one by having the liquid crystal display digital camera each catches the part set images displayed that imageing sensor is taken;
Fig. 5 shown the adjustment camera lens thermo-mechanical drive
This is a well-known technology, and the main functional modules of mobile device comprises following.
As shown in Figure 1, following points: base oneself upon wave band processor 120, RF (radio frequency) transceiver 126; Antenna 125, LCD 121, keyboard 124; Loud speaker 127, microphone 128, internal memory 116 and 122 (ROM and RCM) battery 123; Application processor 114, processor is used for image processing, and is used to control many camera lenses and multisensor camera in the present invention simultaneously.Imageing sensor is 103,105,107 and 109.102,104,106 and 108 is camera lenses.110,111,112 and 113 is cables of images information.Number of sensors is variable, and above-mentioned shown in Figure 1, it has nine camera lenses and transducer.115 un-added camera lens of expression and transducers.The 101st, the object that video camera is taken.
Fig. 2, this has shown the side that camera lens is arranged of mobile device, the fuselage of 201 mobile devices.The 202nd, the camera lens and the transducer of the whole visible light of reception.(F represents Quan Pu) the 203rd, the camera lens and the transducer of reception red spectrum.The 204th, the camera lens and the transducer of reception blue color spectrum.
Fig. 3 has shown the front end of mobile device, the 301st, and the fuselage of mobile device, the 302nd, receive and send the antenna of radio signal.The 303rd, display, it can LCD (liquid crystal display), to show these images that obtain and other various information that make more perfect function, like radio communication, media play, picture catching, or the like.
The present invention has two kinds of fundamental modes: image alignment and suture pattern and gain of quality pattern.Fig. 4 has shown traditional image of being caught by mobile device.401 images displayed are the general images that alignd and sewed up and form by the parts of images that each single lens and transducer are caught.402 are illustrated under the picture quality gain mode, and all camera lenses and transducer are caught same picture simultaneously, make the overlapping maximum that reaches of picture.
For image alignment and suture pattern, the user can be provided with a plurality of camera lenses, aims at a direction separately, and each transducer has covered the different piece of image, but can have some overlapping.Processor sends instruction and makes the image seamless link together, forms a high-definition picture.Should be pointed out that camera lens and transducer can regulate the zone that it aim to be taken automatically.The result who does like this can be taken appropriate region.Processor sends instruction to the brake based on each transducer on the LUT and accomplishes above-mentioned adjustment process, and LUT is defined by calibration procedure.So image can be analyzed, all machineries are inharmonious can and to be reduced by compensation.Can know that by figure four zone that each camera lens is aimed at shows on the LCD screen again.
This process can be described below table
Certainly, the user can adjust between two patterns, and the image that obtains so more balance is comprehensive.
Fig. 5: described camera lens and drive operation principle.Original paper 502 is digital camera lens.Original paper 503 is transducers.Original paper 504 is the chocks that convert electrical energy into motions such as mechanical movement and control, and it can make camera lens and sensor model 506 tilt to move, and makes camera lens aiming body region.Actuator is controlled by 504 processors.Element 506,508,509 and 510 is the camera lenses in the camera model.The camera lens of showing among the figure 508 and 506 is to be in the Image Enhancement Based formula, and they aim at same target at the same time.509 and 510 camera lenses are in image alignment and suture pattern among the figure, and camera lens is aimed at zones of different respectively and had fraction overlapping.
Instance 1: image alignment and suture pattern
To show with appendix figure now mobile device of the present invention will be installed.9 transducers in this example.Fig. 1 to 4 has showed the portable terminal that multisensor and many camera lenses are arranged.View 401 has been showed the field range of one of them transducer.The part of each transducer photographic images, processor are connected into a big complete image to a plurality of image chain at last.The tenth transducer is taken overall image and is come guiding sensor to control actuator covering entire image.Actuator 504 is controlled by processor real-time.Each transducer all can strengthen the image definition of master reference in other words, makes image resolution ratio higher.
Instance 2: picture quality gain mode
To show with appendix figure now mobile device of the present invention will be installed.Fig. 1 to 4 has showed the portable terminal that multisensor and many camera lenses are arranged.
Reference:
[1] Patent No 6,611,289 " Digital cameras using multiple sensors with multiple lenses " by Yu et al.
[2] Patent No 6,914,635 " Microminiature zoom system for digital camera " by Ostergard et al.
[3]“PTAssembl?er”http://www.tawbaware.com/ptasmblr.htm；
[4]www.cambridgeincolour.com/tutorials/high-dynamic-range.htm。
Claims (9)
1. many camera lenses multisensor camera system all is connected with transducer with camera lens with brake with cell phone system and screen.The user can appreciate picture with different overlap modes with different angles.
2. the image information that the camera of in claim 1, mentioning has an application processor processes to be caught by a plurality of camera lenses and transducer.
3. the camera of mentioning in the claim 2 has an application processor processes image information and real-time controls lens and transducer.
4. the brake in the camera system of mentioning in the claim 2 can be adjusted the camera lens angle of inclination, and the user can obtain high overlapping or low superimposed image.
5. the camera of mentioning in the claim 1 can obtain the picture of part spectrum through spectral filtering, can certainly obtain the picture of whole spectrum.
6. the camera system of mentioning in the claim 2 can be handled and compressed picture information and can store into hard disk or transmit information through wireless mode.
7. the camera mentioned of claim 2 can not have the function of all general cameras of execution of any condition: white balance, optics and mechanical checkout, focusing automatically; Aperture control, automatic exposure control, the control of automatic field depth field; Deblurring, image stabilization, muting sensitivity setting (low speed); ISO is provided with (at a high speed), and HDR is provided with or the like.
8. the camera system mentioned in the claim 7 is simultaneously integrated based process device and application processor is so low price and high-quality can be realized simultaneously.
9. the camera of mentioning in the claim 1 can have LCD display or other screen display that can show in real time, and it can or take back exhibiting pictures information in shooting process.
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