CN104159028A - Camera self-shooting control method - Google Patents

Abstract

The invention provides a camera self-shooting control method. The method comprises the following steps: converting an analog electric signal output by a first photosensitive element into a digital signal through a first DA (Digital to Analog) converter; converting an analog electric signal output by a second photosensitive element into a digital signal through a second DA converter; receiving image signals output by a first camera and a second camera through an image processing module, and converting the image signals into digital signals; receiving the digital signals output by the first DA converter and the second DA converter through a light-dimming module, and outputting a light-dimming signal according to a pre-stored data table; and synthesizing the signals output by the image processing module and the light-dimming module, synthesizing the image signal of the first camera and the light-dimming signal of the second photosensitive element, synthesizing the image signal of the second camera and the light-dimming signal of the first photosensitive element, and outputting a light-dimmed image signal through an image synthesizing module.

Description

A kind of camera self-timer mode control method

Technical field

The present invention relates to electronic technology field, refer to especially a kind of camera control method.

Background technology

Since First camera is in the world born, has just been doomed camera and will have changed the mankind's life and history.Camera is called for short camera, is a kind of equipment that utilizes optical imaging concept to form image and use negative writing image.

After the shutter focusing of the light that subject reflects by photographic film and control exposure, on the photosensitive material of subject in camera bellows, form sub-image, through rinsing to process, form permanent image.Camera architecture is the earliest very simple, only comprises camera bellows, camera lens and photosensitive material.Modern camera more complicated, there is camera lens, aperture, shutter, find range, find a view, the system such as photometry, film trasport, counting, auto heterodyne, focusing, zoom, modern camera is the complex product of the technology such as a kind of combination optics, precision optical machinery, electronic technology and chemistry.

Digital camera is that a kind of electronic sensor that utilizes converts optical image in the camera of electronic data.Come the principle of document image different from ordinary camera chemical change by silver bromide on film, the transducer of digital camera is a kind of electric charge coupling (CCD) or complementary metal oxide semiconductors (CMOS) (CMOS) of photoinduction formula.At image transmitting, before computer, conventionally can first be stored in digital storage equipment.

Mobile phone and camera are born combinations, and along with the development of software and hardware, the shooting effect of mobile phone camera, more and more approaches the Self-timer of mm professional camera special, especially mobile phone camera, and mm professional camera special is incomparable especially.The moment of camera self-timer mode control method, mainly operates by user's oneself experience, and due to shooting angle with take the restriction of posture, the operations such as the focusing of the moment photo that causes autodyning, light filling cannot be optimized.

Summary of the invention

The present invention proposes a kind of camera self-timer mode control method, has solved the problem that cannot optimize due to restriction, photo focusing and the light filling operation of shooting angle and posture in prior art.

Technical scheme of the present invention is achieved in that

A kind of camera self-timer mode control method, the first taking module and the second taking module that is arranged on the mobile phone back side based on being arranged on mobile phone front, described the first taking module comprises the first camera and the first photo-sensitive cell that is arranged on the first camera side, and described the second taking module comprises second camera and is arranged on second photo-sensitive cell on second camera side; Described the first photo-sensitive cell and second camera are used in conjunction with, and described the second photo-sensitive cell and the first camera are used in conjunction with; Comprise the following steps:

Step (a), is converted to digital signal by a DA transducer by the analog electrical signal of described the first photo-sensitive cell output; By the 2nd DA transducer, the analog electrical signal of described the second photo-sensitive cell output is converted to digital signal;

Step (b), receives the picture signal of described the first camera and second camera output by image processing module, be converted into digital signal;

Step (c), receives the digital signal of a described DA transducer and the output of the 2nd DA transducer, and exports dim signal according to the tables of data prestoring by light-adjusting module;

Step (d), by image synthesis unit, described image processing module and light-adjusting module output signal are synthesized, the dim signal of the picture signal of the first camera and the second photo-sensitive cell is synthetic, the dim signal of the picture signal of second camera and the first photo-sensitive cell is synthetic, and output is through the picture signal of light modulation.

The invention has the beneficial effects as follows:

By being arranged on photo-sensitive cell and the camera of an other side, be used in conjunction with, the picture signal that camera is taken and dim signal are synthetic, and output is through the image of light modulation, and the color and luster of image is optimized.

Accompanying drawing explanation

In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.

Fig. 1 is the principle control block diagram of camera self-timer mode control method of the present invention;

Fig. 2 is the flow chart of camera self-timer mode control method of the present invention.

Embodiment

Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.

As shown in Figure 1, the operation principle of a kind of camera self-timer mode control method of the present invention is: the first taking module 10 and the second taking module 20 that is arranged on the mobile phone back side that are arranged on mobile phone front, described the first taking module 10 comprises the first camera 11 and the first photo-sensitive cell 12 that is arranged on the first camera side, and described the second taking module 20 comprises second camera 21 and is arranged on second photo-sensitive cell 22 on second camera side; Described the first photo-sensitive cell 12 is used in conjunction with second camera 21, and described the second photo-sensitive cell 22 and the first camera 11 are used in conjunction with; The one DA transducer 31, is connected to described the first photo-sensitive cell 12, and the analog electrical signal of its output is converted to digital signal; The 2nd DA transducer 32, is connected to described the second photo-sensitive cell 22, and the analog electrical signal of its output is converted to digital signal; Image processing module 43, receives the picture signal that described the first camera 11 and second camera 21 are exported, and is converted into digital signal; Light-adjusting module 42, receives the digital signal that a described DA transducer 31 and the 2nd DA transducer 32 are exported, according to the tables of data output dim signal prestoring; Image synthesis unit 43, be connected to described image processing module 41 and light-adjusting module 42, the output signal of the two is synthesized, the dim signal of the picture signal of the first camera 11 and the second photo-sensitive cell 22 is synthetic, the dim signal of the picture signal of second camera 21 and the first photo-sensitive cell 12 is synthetic, and output is through the picture signal of light modulation.

As shown in Figure 2, based on foregoing circuit principle, camera self-timer mode control method of the present invention comprises the following steps:

Step (a), is converted to digital signal by a DA transducer by the analog electrical signal of described the first photo-sensitive cell output; By the 2nd DA transducer, the analog electrical signal of described the second photo-sensitive cell output is converted to digital signal;

Step (b), receives the picture signal of described the first camera and second camera output by image processing module, be converted into digital signal;

Step (c), receives the digital signal of a described DA transducer and the output of the 2nd DA transducer, and exports dim signal according to the tables of data prestoring by light-adjusting module;

Step (d), by image synthesis unit, described image processing module and light-adjusting module output signal are synthesized, the dim signal of the picture signal of the first camera and the second photo-sensitive cell is synthetic, the dim signal of the picture signal of second camera and the first photo-sensitive cell is synthetic, and output is through the picture signal of light modulation.

Above-mentioned image processing module 41, light-adjusting module 42 and image synthesis unit 43 can adopt discrete structure to realize, and select 3 chip blocks, and realize image synthetic function by the circuit of taking outward; Image processing module 41, light-adjusting module 42 and image synthesis unit 43 also can adopt integrated structure to realize, and by the internal processes of DSP circuit, realize image processing module 41, light-adjusting module 42 and image synthesis unit 43.

Preferably, described dsp chip is TMS320DM642 chip.

Up-to-date fixed DSP in the TMS320DM642 ShiTI C6000 of company series DSP, its core is C6416 type high-performance digital signal processor, there is extremely strong handling property, flexibility and the programmability of height, simultaneously peripheral integrated very complete equipment and the interface such as audio frequency, video and network service.

TMS320DM642 chip comprises: 3 configurable video ports (VPORT0-2) can be realized seamless link with general video coding and decoding device, supports various video resolution and video standard, supports RAW video input/output, transport stream mode; 1 10/100Mb/s Ethernet interface (EMAC), meets IEEE802.3 standard; 1 multichannel band buffered audio serial port (McASP), supports I2S, DIT, S/PDIF, IEC60958-1, the audio formats such as AES-3, CP-430; 2 multichannel band buffering serial ports (McBSP), adopt RS232 level to drive; 1 VCXO interpolation control unit (VIC), supports that audio/video is synchronous; 1 32,66M hertz, the master/slave pci interface of 3.3V, follow PCI2.2 standard; 1 configurable 16/32 host interface of user (HPI); 1 16 general input/output port (GPIO); 1 64 external memory interfaces (EMIF), can with most of asynchronous memories (SRAM, EPROM) and synchronous memories (SDRAM, SBSRAM, ZBT SRAM, FIFO) seamless link, maximum addressable external memory storage space is 1024MB; 1 enhancement mode direct memory access controller (EDMA) with 64 autonomous channels, tunnel; 1 data management input/output module (MDIO); 1 I2C bus module; 3 32 general purpose timers; 1 jtag interface that meets IEEE1149.1 standard and daughter board interface etc.

The present invention is used in conjunction with by being arranged on photo-sensitive cell and the camera of an other side, and the picture signal that camera is taken and dim signal are synthetic, and output is through the image of light modulation, and the color and luster of image is optimized.

The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.

Claims (1)

1. a camera self-timer mode control method, the first taking module and the second taking module that is arranged on the mobile phone back side based on being arranged on mobile phone front, described the first taking module comprises the first camera and the first photo-sensitive cell that is arranged on the first camera side, and described the second taking module comprises second camera and is arranged on second photo-sensitive cell on second camera side; Described the first photo-sensitive cell and second camera are used in conjunction with, and described the second photo-sensitive cell and the first camera are used in conjunction with; It is characterized in that, comprise the following steps:

Step (a), is converted to digital signal by a DA transducer by the analog electrical signal of described the first photo-sensitive cell output; By the 2nd DA transducer, the analog electrical signal of described the second photo-sensitive cell output is converted to digital signal;

Step (b), receives the picture signal of described the first camera and second camera output by image processing module, be converted into digital signal;

Step (c), receives the digital signal of a described DA transducer and the output of the 2nd DA transducer, and exports dim signal according to the tables of data prestoring by light-adjusting module;

Step (d), by image synthesis unit, described image processing module and light-adjusting module output signal are synthesized, the dim signal of the picture signal of the first camera and the second photo-sensitive cell is synthetic, the dim signal of the picture signal of second camera and the first photo-sensitive cell is synthetic, and output is through the picture signal of light modulation.