CN101059596B - Reflection type optical device, color correction method and electronic equipment - Google Patents
Reflection type optical device, color correction method and electronic equipment Download PDFInfo
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- CN101059596B CN101059596B CN2006100752278A CN200610075227A CN101059596B CN 101059596 B CN101059596 B CN 101059596B CN 2006100752278 A CN2006100752278 A CN 2006100752278A CN 200610075227 A CN200610075227 A CN 200610075227A CN 101059596 B CN101059596 B CN 101059596B
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Abstract
The invention relates to a reflective optical device, a color correct method, and an electric device, which uses an internal camera and a reflective optical shield devoice to provide the functions of color sensor and brightness sensor. When the internal camera provides the functions of the color sensor, the reflective optical device is suspended on a display of the electric device, therefore, the light emitted from the display with the information relative to color blocks can be absorbed by the internal camera via the reflection of the reflective optical shield device, and the electric device uses a mirror compensation matrix and a camera correct matrix to process the light received by the internal camera, to obtain the color description compensation of the display.
Description
Technical field
The invention relates to the technical field of built-in camera, refer to a kind of reflection type optical device, color correcting method and electronic equipment especially.
Background technology]
At present on the market, and though be color sensor (Colorimeter), environmental luminance sensor (Ambient Light Sensor) or video cameras (PC-CAM or Web-CAM) all the form with stand-alone assembly exist.If desire is used above-mentioned three kinds of functions that device is provided, then must buy respectively, so will cause financial burden to the user, and also comparatively loaded down with trivial details in the operation.So, if above-mentioned three kinds of devices can be combined, can significantly reduce production costs and the user bears.
The following function that will outline color sensor, environmental luminance sensor, reach video cameras.
Color sensor
In general, on personal computer device or mobile computer, assembly that the color of human eye impression presents can be influenced and video decoder (Video Decoder), drawing chip (VGAChip), and panel of LCD may be included, wherein remarkable with the influence of panel of LCD again, and along with the time of using panel of LCD increases, aging (Aging) phenomenon of panel will make the color output quality of product change along with the increase of service time.
Therefore, for influence and the aging phenomenon of panel of describing above-mentioned different inter-module color qualities, description and correction that the present color sensor of existing numerous species on the market provides the user to carry out the display device COLOR COMPOSITION THROUGH DISTRIBUTION.
Color sensor is except the sensor of the general video cameras of dynamic range is big, and color sensor can be with luminous energy to meet CIE standard colorimetric system XYZ output (XYZ is the defined equipment independence of the CIE color space (Device-Independent Color Space)).
Video cameras
Have video cameras in existing on the market at present many electronic equipments (for example: mobile computer, LCD TV, mobile phone or PDA), so that functions such as video conference or Video chat to be provided.Under the considering of cost, the spectral response of the sensor of present commercially available video cameras (Sensor SpectralResponsivity) becomes nonlinear dependence with CIE standard colorimetric system XYZ mostly, also is called the sensor (Non-Colorimetric sensors) of non-color measurement.Therefore, general video cameras can only output device subordinate look (Device Dependent Colors), and can't can output device independence look as color sensor.
Environmental luminance sensor
The environmental light brightness sensing automatically adjusts to screen intensity according to the variation of environment light source, so that it reaches the optimum level of the eyes acceptance that can be fit to the user.For example: when the user does to show, reduce screen intensity in a rather dark meeting room, avoid too high contrast to cause user's discomfort.
Because above-mentioned color sensor, environmental luminance sensor, and video cameras all have can light sensing sensor, and present mobile computer can be equiped with built-in camera usually.Therefore, if built-in camera can possess color sensor, environmental luminance sensor, and function such as video photography simultaneously, the electronic equipment that will have video camera in then can making has extra additional function, makes finished product have competitive power.
Summary of the invention
A purpose of the present invention is that a kind of reflection type optical device, color correcting method and electronic equipment are being provided, and measures can utilize built-in camera and reflection type optical device to carry out color.
Another object of the present invention is that a kind of reflection type optical device, color correcting method and electronic equipment are being provided, in order to do making built-in camera that the function of color sensor and environmental luminance sensor can be provided simultaneously.
According to a characteristic of the present invention, provide a kind of color correcting method, it utilizes a receiver and a colour correction system of an electronic device build-in, proofreaies and correct the color of a display of this electronic equipment, it is characterized in that this method comprises the steps:
Produce a light from this display;
With a reflection type optical device this light is reflexed to this receiver; And
Using this receiver to receive the signal that is produced behind this light with this color calibration system carries out colour correction, comprises the steps:
Utilize a catoptron compensation matrix that time carrier chrominance signal of falling in the one first color lump relevant information light in this light is compensated, to obtain a compensation carrier chrominance signal;
Utilize a video camera correction matrix to proofread and correct this compensation carrier chrominance signal, fall time XYZ carrier chrominance signal to obtain one; And
Fall time XYZ carrier chrominance signal according to this and produce color description shelves.
Wherein under a moulding/matrix model, fall time XYZ carrier chrominance signal according to this and produce this color description shelves.
Wherein this first color lump has a plurality of digital rgb values.
Wherein these color description shelves are to utilize an optimization to come these a plurality of digital rgb values and this three-dimensional corresponding relation parametrization of falling between time XYZ carrier chrominance signal are obtained.
Wherein use this catoptron compensation matrix to comprise the steps:
Produce one second color lump, and the light with this second color lump relevant information is provided;
Utilize this reflection type optical device to reflect the light that this has this second color lump relevant information, make this light be received, to obtain the XYZ carrier chrominance signal of a reflection by one first color analysis instrument with this second color lump relevant information;
Utilize one second color analysis instrument to receive the light that this has this second color lump relevant information, to obtain one first direct XYZ carrier chrominance signal; And
Utilize a least square method that XYZ carrier chrominance signal and this first direct XYZ carrier chrominance signal of this reflection are obtained this catoptron compensation matrix.
Wherein this video camera correction matrix is to utilize following step to obtain:
Produce one the 3rd color lump, and the light with the 3rd color lump relevant information is provided;
Utilize this reflection type optical device to reflect the light that this has the 3rd color lump relevant information, make this light be received, to obtain a linear RGB carrier chrominance signal by this built-in camera with the 3rd color lump relevant information;
Utilize this catoptron compensation matrix that this linearity RGB carrier chrominance signal is compensated, to obtain a compensation RGB carrier chrominance signal;
Utilize one the 3rd color analysis instrument to receive the light that this has the 3rd color lump relevant information, to obtain one second direct XYZ carrier chrominance signal; And
Utilize a least square method that this compensation RGB carrier chrominance signal and this second direct XYZ carrier chrominance signal are obtained this video camera correction matrix.
According to another characteristic of the present invention, provide a kind of electronic equipment, it is characterized in that, comprising:
One display, it sends a light;
One receiver;
One reflection type optical device, it comprises one first catoptron, and in fact perpendicular to one second catoptron of this first catoptron, this light via this first catoptron and this second mirror reflects after, enter this receiver; And
One colour correction system, it uses this receiver to receive the signal that is produced behind this light to carry out colour correction, and this color calibration system comprises:
One processor couples this receiver, is used for carrying out a program code; And
One storing memory couples this processor, is used for storing this program code;
Wherein this program code includes:
Utilize a catoptron compensation matrix that time carrier chrominance signal of falling in the one first color lump relevant information light in this light is compensated, to obtain a compensation carrier chrominance signal;
Utilize a video camera correction matrix to proofread and correct this compensation carrier chrominance signal, fall time XYZ carrier chrominance signal to obtain one; And
Fall time XYZ carrier chrominance signal according to this and produce color description shelves.
8, electronic equipment as claimed in claim 7 is characterized in that, wherein, this color calibration system comprises:
One processor couples this receiver, is used for carrying out a program code; And
One storing memory couples this processor, is used for storing this program code; Wherein include in this program code:
Utilize a catoptron compensation matrix that time carrier chrominance signal of falling in the one first color lump relevant information light in this light is compensated, to obtain a compensation carrier chrominance signal;
Utilize a video camera correction matrix to proofread and correct this compensation carrier chrominance signal, fall time XYZ carrier chrominance signal to obtain one; And
Fall time XYZ carrier chrominance signal according to this and produce color description shelves.
Wherein this receiver is a built-in camera.
The RGB carrier chrominance signal in this built-in camera sensing one particular range wherein, then changing this RGB carrier chrominance signal through a video camera correction matrix is an XYZ carrier chrominance signal, for the environmental light brightness of being learnt this built-in camera institute sensing by the Y value in this XYZ carrier chrominance signal.
Wherein, this reflection type optical device also comprises a hanger and a housing, and this hanger is connected with this housing, and these first lens, this first catoptron, this second catoptron, and these second lens all be mounted in this housing.
Wherein, this processor of this color calibration system falls time XYZ carrier chrominance signal according to this and produces this color description shelves under a moulding/matrix model.
Wherein this first color lump has a plurality of digital rgb values.
Wherein this processor is to utilize an optimization to come these a plurality of digital rgb values and this three-dimensional corresponding relation parametrization of falling between time XYZ carrier chrominance signal are produced this color description shelves.
Description of drawings
For further specifying concrete technology contents of the present invention, below in conjunction with embodiment and accompanying drawing describes in detail as after, wherein:
Fig. 1 is that the built-in camera collocation reflection type optical device that utilizes of a preferred embodiment of the present invention carries out the synoptic diagram that color measures.
Fig. 2 is the side view that the reflection type optical device of a preferred embodiment of the present invention is placed in the display of electronic equipment.
Fig. 3 is the process flow diagram of setting up the catoptron compensation matrix of a preferred embodiment of the present invention.
Fig. 4 is the function block flow diagram of obtaining the catoptron compensation matrix of a preferred embodiment of the present invention.
Fig. 5 is the process flow diagram that the video camera correction matrix is set up in the demonstration of a preferred embodiment of the present invention.
Fig. 6 is the function block flow diagram of obtaining the video camera correction matrix of a preferred embodiment of the present invention.
Fig. 7 is the process flow diagram that the use built-in camera of a preferred embodiment of the present invention carries out color description.
Fig. 8 is the function block flow diagram that the use built-in camera of a preferred embodiment of the present invention carries out color description.
Fig. 9 is the functional block diagram of electronic equipment.
Embodiment
Preferred embodiment of the present invention provides a reflection type optical device so that in be built in electronic equipment receiver have the function of color sensor and luminance sensor.
The explanation of relevant reflection type optical device, would like to ask in the lump with reference to Fig. 1, Fig. 2, and Fig. 9, wherein Fig. 1 shows the synoptic diagram that utilizes built-in receiver 1 collocation reflection type optical device 2 to carry out the color measurement, Fig. 2 shows that reflection type optical device 2 is placed in the side view of the display 31 of electronic equipment 3, and Fig. 9 shows the functional block diagram of electronic equipment 3.
In Fig. 1, built-in receiver 1 is mounted on the side of display 31 of electronic equipment 3, and reflection type optical device 2 is placed on the display 31, and the position that it hung is corresponding mutually with built-in receiver 1.In present embodiment, electronic equipment 3 is the mobile computer device, and in other embodiments, electronic equipment 3 can be electronic products such as personal computer device, server or portable electronic device.Certainly, in other embodiments, the volume size of reflection type optical device 2 also is a proportionate relationship with its size of display that is hung.
In Fig. 2, but being the effect of penetration formula optical devices 2 and getting back to, the light that display 31 sent is mounted on the built-in receiver 1 of display 31 itself, this receiver 1 and signal connect a colour correction system 24, and this color calibration system 24 is realized by hardware or software in the electronic equipment 3.Above-mentioned reflection type optical device 2 includes hanger 21 and housing 22, and wherein hanger 21 interconnects with housing 22.Also include lens 221,224 and catoptron 222,223 in the above-mentioned housing 22.
In Fig. 9, electronic equipment 3 wraps built-in receiver 1, processor 32, reaches storing memory 33.Above-mentioned processor 32 couples with built-in receiver 1 and storing memory 33 respectively.Built-in receiver 1 can be in order to the light with first color lump relevant information that is provided by display 31 to be provided.Above-mentioned processor 32 is in order to carry out a program code that is stored in storing memory 33.In present embodiment, storing memory 33 is a volatile storage, and for example: Synchronous Dynamic Random Access Memory (SDRAM), in other embodiments, storing memory 33 also can be non-volatility memorizer, for example: flash memory.In addition, include in the program code: utilize a catoptron compensation matrix that time carrier chrominance signal of falling in this first color lump relevant information light is compensated, to obtain a compensation carrier chrominance signal; Utilize a video camera correction matrix to proofread and correct this compensation carrier chrominance signal, fall time XYZ carrier chrominance signal to obtain one; And produce a color and describe shelves according to falling time XYZ carrier chrominance signal.Further specifying of the operation of relevant procedures code is detailed later.
Aforementioned lens 221 are mounted on one of them opening of housing 22, and to be used for receiving the light that display 31 is sent, the light that this display 31 sent can penetrate lens 221 and become a transmitted light, and transmitted light can arrive at catoptron 222 along optical path 23.
Aforementioned catoptron 222 is mounted in the housing 22, and catoptron 222 is corresponding with lens 221.When aforementioned transmitted light arrived at catoptron 222, the angle of transmitted light and catoptron 222 was 45 degree, so catoptron 222 these transmitted lights of meeting total reflection make it become first reflected light, and this first reflected light can arrive at catoptron 223 along optical path 23.
Similar ground, catoptron 223 also is mounted in the housing 22, and catoptron 223 is vertical the putting of 90 degree with catoptron 222 essence.When first reflected light arrived at catoptron 223, the angle of first reflected light and catoptron 223 was 45 degree, so catoptron 223 also can total reflection first reflected light, make it become second reflected light, and this second reflected light can arrive at lens 224 along optical path 23.
Lens 224 are mounted on another opening of housing 22, and lens 224 are corresponding with catoptron 223, to receive second reflected light that catoptron 223 is reflected.Second reflected light can penetrate lens 224, and arrives at receiver 1 along optical path 23.In Fig. 2, receiver 1 is a built-in camera.In other was implemented, receiver 1 also may be a color analyzer.
In addition, in present embodiment, for fear of the sensing result of veiling glare diffuse transmission influence receiver (can be built-in camera 1 or color analyzer), imperfect optical path partly is to implement an irregular surface to handle in reflection type optical device 2, to reduce the interference of veiling glare.
The light penetration formula optical devices 2 that aforementioned display device 31 is sent are got back in the process of receiver 1, and being received light that device 1 receives might be because the reflectivity of the catoptron 222,223 of reflection type optical device 2 and decay (Distortion).Therefore, for the color description shelves about display 31 that built-in receiver 1 is obtained are possessed pinpoint accuracy, this preferred embodiment provides suitable compensation with color calibration system 24 for catoptron 222,223 reflectance varies at different wave length.In addition, the sensor of general consumer built-in camera is the sensor (Non-Colorimetric Sensors) of non-color measurement, and its spectral response (Sensor Spectral Response) mostly becomes nonlinear dependence with CIE standard colorimetric system XYZ, so color calibration system 24 must carry out a treatment for correcting to built-in camera 1.The treatment for correcting of the following reflectivity compensation that 24 pairs of catoptrons of color calibration system 222,223 will be described respectively and built-in camera.
The reflectivity compensation of catoptron
The explanation of the reflectivity compensation of 24 pairs of catoptrons of relevant color calibration system please be in the lump with reference to Fig. 3 and Fig. 4, and wherein Fig. 3 shows the process flow diagram of setting up the catoptron compensation matrix, and Fig. 4 demonstration obtains the function block flow diagram of catoptron compensation matrix.
At first, the color lump generating routine 41 that utilization is installed on electronic equipment 3 produces a plurality of different digital rgb values, make the display 31 of electronic equipment to be corrected 3 show to have the color lump of a plurality of different colours, and send light (step S310) with this color lump relevant information.
Then, utilize first color analysis instrument 44 and second color analysis instrument 45 to measure with the color lump that each autoregistration display 31 of mode direct and indirect penetration formula optical devices 2 are produced respectively.
For example: the light with this color lump relevant information (step S315) that utilizes reflection type optical device 2 to come reflective display 31 to be sent, feasible first color analysis instrument 44 that electrically connects with electronic equipment 3 can receive the light with this color lump relevant information, and first color analysis instrument 44 can be delivered to electronic equipment 3 (step S320) with its result who detects.Then, utilize the color measuring program that is installed in the electronic equipment 3 to come the result that first color analysis instrument 44 is detected is handled, to obtain the XYZ carrier chrominance signal (step S325) of a reflection.
In addition, utilize second color analysis instrument 45 directly to detect the light with this color lump relevant information that display 31 is sent, wherein second color analysis instrument 45 also electrically connects (step S330) with electronic equipment 3.After second color analysis instrument 45 detects the light with this color lump relevant information, be its result who detects can be delivered to electronic equipment 3, the color measuring program that is installed in the electronic equipment 3 for utilization comes the result that second color analysis instrument 45 is detected is handled, to obtain one first direct XYZ carrier chrominance signal (step S335).
After XYZ carrier chrominance signal that obtains reflection (XYZ value) and the first direct XYZ carrier chrominance signal (having the direct XYZ value of plural groups) with plural groups reflection, with 3 * 3 matrixes and utilize least square method (Least Squares Estimation LSE) calculates catoptron compensation matrix (step S340) in the reflection type optical device 2.In present embodiment, be to utilize single order regression model (First-OrderModel) to find out the catoptron compensation matrix, with describe direct XYZ＜-reflection XYZ corresponding relation.In other embodiments, also can adopt high-order regression model (Higher-Order Model), neural network or other linear mode describe direct XYZ＜-reflection XYZ corresponding relation.
The correction of built-in camera
The correction explanation of 24 pairs of built-in cameras of relevant color calibration system please be in the lump with reference to Fig. 5 and Fig. 6, and wherein Fig. 5 shows the process flow diagram of setting up the video camera correction matrix, and Fig. 6 demonstration obtains the function block flow diagram of video camera correction matrix.
Similar with above-mentioned explanation, at first utilize color lump generating routine 61 to produce a plurality of different digital rgb values, make display 31 show to have the color lump of a plurality of different colours, and send light (step S510) with this color lump relevant information.
Then, utilizing reflection type optical device 2 that built-in camera is tossed about in bed to aim at the color lump that display 31 produced measures.That is, the light with this color lump relevant information (step S515) that utilizes reflection type optical device 2 to come reflective display 31 to be sent, make the built-in camera that is mounted on electronic equipment 3 can receive light with this color lump relevant information, and it is converted to electric signal by light signal, then built-in camera and the electric signal that it produced carried out analog digital conversion is to obtain a linear RGB carrier chrominance signal 65 (step S520).Then, utilize 66 pairs of linear RGB carrier chrominance signals 65 of the previous catoptron compensation matrix that obtains to compensate, to obtain a compensation RGB carrier chrominance signal 67 (step S525).
In addition, utilize the 3rd color analysis instrument 68 that electrically connects with electronic equipment 3 directly to detect the light with this color lump relevant information (step S530) that display 31 is sent.After the 3rd color analysis instrument 68 detects the light with this color lump relevant information, be its result who detects can be delivered to electronic equipment 3, the color measuring program that is installed in the electronic equipment 3 for utilization comes the result that the 3rd color analysis instrument 68 is detected is handled, to obtain one second direct XYZ carrier chrominance signal (step S535).
After obtaining compensation RGB the carrier chrominance signal 67 and second direct XYZ carrier chrominance signal, once again with 3 * 3 matrixes and utilize least square method to obtain a video camera correction matrix (step S540).
Because present display mostly is LCD greatly, and Backlight For Liquid Crystal Display Panels is using a period of time (for example: 2 years) that catabiosis can take place afterwards, if not therefore the user often pays attention to the color output quality, then the user can come the aging display of backlight is carried out color description and correction through built-in camera provided by the present invention and reflection type optical device.In addition, above-mentioned catoptron compensation matrix and video camera correction matrix can just be set during in the production phase in electronic equipment and finish, therefore user's desire is carried out color description and timing to display, just can use built-in camera to reach easily, relevant its explanation, would like to ask in the lump with reference to Fig. 7 and Fig. 8, wherein Fig. 7 shows that the use built-in camera carries out the process flow diagram of color description, and Fig. 8 shows that the use built-in camera carries out the function block flow diagram of color description.
At first, utilize the color lump generating routine 81 that is installed on electronic equipment 3 to produce a plurality of different digital rgb values, make display to be corrected 31 show to have the color lump of a plurality of different colours, and send light (step S710) with this color lump relevant information.
Then, utilizing reflection type optical device 2 that built-in camera 1 is tossed about in bed to aim at the color lump that display 31 produced measures.That is, the light with this color lump relevant information (step S715) that utilizes reflection type optical device 2 to come reflective display 31 to be sent, make the built-in camera 1 that is mounted on electronic equipment can receive light, to obtain to fall time RGB carrier chrominance signal 85 (step S720) with this color lump relevant information.Then, utilize 86 pairs of the previous catoptron compensation matrixs that obtains to fall time RGB carrier chrominance signal 85 and compensate, to obtain a compensation RGB carrier chrominance signal 87 (step S725).
Then, utilize video camera correction matrix 88 to come rectification building-out RGB carrier chrominance signal 87, fall time XYZ carrier chrominance signal 89 (step S730) to be converted to one.Adopting under moulding/matrix model at last, with the optimization of various dimensions (for example: these digital rgb values that color lump generating routine 81 is produced and fall three-dimensional corresponding relation parametrization between time XYZ carrier chrominance signal 89 powell multidimensional optimization), to obtain with 1 pair of the built-in camera color description shelves that the display 31 of catabiosis is carried out taking place, wherein the color description shelves can comprise the gamut range (Gamut) of present display, tone facsimile log (Tone Reproduction Curve), the information such as chromaticity coordinates of white point and dim spot.
In addition, the built-in camera that the embodiment of the invention provided also can provide the function of environmental luminance sensor except the function that color sensor can be provided.Traditional environmental luminance sensor only has a photosensory assembly usually, and built-in camera provided by the present invention, include a sensitization array, and this sensitization array can obtain the information of all Luminance Distribution in the particular range, therefore can utilize Luminance Distribution brighter Yu darker in this scope to obtain synchronous contrast (Simultaneous ContrastRatio), its result can consider with high-high brightness, to adjust the foundation of brightness automatically as electronic equipment 3.
For example: write down the high-high brightness that present screen intensity allows in the previous color description file of built-in camera to display institute custom-made, be no more than under the prerequisite of high-high brightness, utilize the video camera correction matrix to convert the RGB carrier chrominance signal that built-in camera obtained to the XYZ carrier chrominance signal, obtaining the received Y value (brightness value) of built-in camera, that is utilize built-in camera 1 to sense environmental light brightness.Then, again with the Y value as index value, with by obtaining suitable screen intensity value in the reference brightness table, can adjust the brightness of display for electronic equipment 3 according to this suitable screen intensity value.The reference brightness table is as follows:
| Typical environment for use | High-high brightness (cd/m 2) | Contrast synchronously |
| Cinema | 40 | 80∶1 |
| The parlor | 100 | 20∶1 |
| Office | 200 | 5∶1 |
Also wrap by above explanation as can be known, the embodiment of the invention cremasteric reflex formula optical devices built-in camera of arranging in pairs or groups makes built-in camera have the function of color sensor and luminance sensor.In addition, for the catoptron that overcomes reflection type optical device reflectance varies at different wave length, the light signal that the embodiment of the invention and cremasteric reflex mirror compensation matrix come receiver is received compensates, and become the problem of nonlinear dependence with the CIE standard colorimetric system for the spectral response that improves built-in camera, the embodiment of the invention also provides the video camera correction matrix to come built-in camera is proofreaied and correct, and reaches the function of color sensor thus.
The foregoing description only is to give an example for convenience of description, and the interest field that the present invention advocated should be as the criterion so that claim is described certainly, but not only limits to the foregoing description.
Claims (13)
1. color correcting method, it utilizes a receiver and a colour correction system of an electronic device build-in, proofreaies and correct the color of a display of this electronic equipment, it is characterized in that this method comprises the steps:
Produce a light from this display;
With a reflection type optical device this light is reflexed to this receiver; And
Using this receiver to receive the signal that is produced behind this light with this color calibration system carries out colour correction, comprises the steps:
Utilize a catoptron compensation matrix that time carrier chrominance signal of falling in the one first color lump relevant information light in this light is compensated, to obtain a compensation carrier chrominance signal;
Utilize a video camera correction matrix to proofread and correct this compensation carrier chrominance signal, fall time XYZ carrier chrominance signal to obtain one; And
Fall time XYZ carrier chrominance signal according to this and produce color description shelves.
2. color correcting method as claimed in claim 1 is characterized in that, wherein under a moulding/matrix model, falls time XYZ carrier chrominance signal according to this and produces this color description shelves.
3. color correcting method as claimed in claim 1 is characterized in that, wherein this first color lump has a plurality of digital rgb values.
4. color correcting method as claimed in claim 2 is characterized in that, wherein these color description shelves are to utilize an optimization to come these a plurality of digital rgb values and this three-dimensional corresponding relation parametrization of falling between time XYZ carrier chrominance signal are obtained.
5. color correcting method as claimed in claim 1 is characterized in that, wherein uses this catoptron compensation matrix to comprise the steps:
Produce one second color lump, and the light with this second color lump relevant information is provided;
Utilize this reflection type optical device to reflect the light that this has this second color lump relevant information, make this light be received, to obtain the XYZ carrier chrominance signal of a reflection by one first color analysis instrument with this second color lump relevant information;
Utilize one second color analysis instrument to receive the light that this has this second color lump relevant information, to obtain one first direct XYZ carrier chrominance signal; And
Utilize a least square method that XYZ carrier chrominance signal and this first direct XYZ carrier chrominance signal of this reflection are obtained this catoptron compensation matrix.
6. color correcting method as claimed in claim 1 is characterized in that, wherein this video camera correction matrix is to utilize following step to obtain:
Produce one the 3rd color lump, and the light with the 3rd color lump relevant information is provided;
Utilize this reflection type optical device to reflect the light that this has the 3rd color lump relevant information, make this light be received, to obtain a linear RGB carrier chrominance signal by this built-in camera with the 3rd color lump relevant information;
Utilize this catoptron compensation matrix that this linearity RGB carrier chrominance signal is compensated, to obtain a compensation RGB carrier chrominance signal;
Utilize one the 3rd color analysis instrument to receive the light that this has the 3rd color lump relevant information, to obtain one second direct XYZ carrier chrominance signal; And
Utilize a least square method that this compensation RGB carrier chrominance signal and this second direct XYZ carrier chrominance signal are obtained this video camera correction matrix.
7. an electronic equipment is characterized in that, comprising:
One display, it sends a light;
One receiver;
One reflection type optical device, it comprises one first catoptron, and in fact perpendicular to one second catoptron of this first catoptron, this light via this first catoptron and this second mirror reflects after, enter this receiver; And
One colour correction system, it uses this receiver to receive the signal that is produced behind this light to carry out colour correction, and this color calibration system comprises:
One processor couples this receiver; And
One storing memory couples this processor;
Wherein this processor utilizes a catoptron compensation matrix that time carrier chrominance signal of falling in the one first color lump relevant information light in this light is compensated, to obtain a compensation carrier chrominance signal;
Utilize a video camera correction matrix to proofread and correct this compensation carrier chrominance signal, fall time XYZ carrier chrominance signal to obtain one; And
Fall time XYZ carrier chrominance signal according to this and produce color description shelves.
8. electronic equipment as claimed in claim 7 is characterized in that, wherein this receiver is a built-in camera.
9. electronic equipment as claimed in claim 8, it is characterized in that, the RGB carrier chrominance signal in this built-in camera sensing one particular range wherein, then changing this RGB carrier chrominance signal through a video camera correction matrix is an XYZ carrier chrominance signal, for the environmental light brightness of being learnt this built-in camera institute sensing by the Y value in this XYZ carrier chrominance signal.
10. electronic equipment as claimed in claim 7, it is characterized in that wherein, this reflection type optical device also comprises a hanger and a housing, this hanger is connected with this housing, and these first lens, this first catoptron, this second catoptron, and these second lens all be mounted in this housing.
11. electronic equipment as claimed in claim 7 is characterized in that, wherein, this processor of this color calibration system falls time XYZ carrier chrominance signal according to this and produces this color description shelves under a moulding/matrix model.
12. electronic equipment as claimed in claim 7 is characterized in that, wherein this first color lump has a plurality of digital rgb values.
13. electronic equipment as claimed in claim 11 is characterized in that, wherein this processor is to utilize an optimization to come these a plurality of digital rgb values and this three-dimensional corresponding relation parametrization of falling between time XYZ carrier chrominance signal are produced this color description shelves.
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| KR100927002B1 (en) * | 2008-10-30 | 2009-11-17 | (주)실리콘화일 | Image sensor |
| CN102449524B (en) | 2009-03-25 | 2015-03-11 | 马格纳电子系统公司 | Vehicular camera and lens assembly |
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