JP2011193281A - Portable device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem: a user must be put into an environment where a portable device can immediately used or be assisted, because the environment where the portable device is used may generally change moment by moment in such a case that the user wants to take out the portable device from a bag or a pocket to use it immediately. <P>SOLUTION: The portable device includes a processing section for executing processing and a control section for causing the processing section to execute at least any processing on the basis of a result of acquiring the biological information of the user and a result of detection by an acceleration sensor. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a portable device.

2. Description of the Related Art An imaging device that detects a photographer's biological information, estimates a photographer's emotion, and supports a photographing operation based on the estimated emotion is known. For example, the camera shake correction gain is adjusted in accordance with the height of emotion to improve the tracking characteristic of the correction lens.
[Prior art documents]
[Patent Literature]
[Patent Document 1] Japanese Unexamined Patent Application Publication No. 2009-210992

  It is assumed that the environment in which the mobile device is used generally changes from moment to moment. That is, in a case where it is desired to suddenly use a portable device stored in a bag or a pocket, it is necessary to provide an environment in which the portable device can be operated immediately or to assist the user.

  In order to solve the above-described problem, a portable device according to one aspect of the present invention includes a processing unit that performs processing, and at least one of the processing unit based on the acquisition result of the user's biological information and the detection result of the acceleration sensor. And a control unit that executes processing.

  It should be noted that the above summary of the invention does not enumerate all the necessary features of the present invention. In addition, a sub-combination of these feature groups can also be an invention.

It is principal part sectional drawing of a camera system. It is an upper general view of a camera system. It is a figure which shows the 1st state which hold | gripped the imaging lens with the left hand. It is a figure which shows the 2nd state which hold | gripped the imaging lens with the left hand. It is a figure which shows the camera main body side biological sensor part provided in the camera main body. It is a figure which shows the structure of a heart rate detection apparatus and a pulse wave detection apparatus. It is a block diagram of a camera system. It is an assist control flowchart of a camera system.

  Hereinafter, the present invention will be described through embodiments of the invention, but the following embodiments do not limit the invention according to the claims. In addition, not all the combinations of features described in the embodiments are essential for the solving means of the invention.

  FIG. 1 is a cross-sectional view of a main part of a camera system 1 according to the present embodiment. In the present embodiment, a camera system 1 will be described as an example of a portable device. The camera system 1 is a lens-interchangeable single-lens reflex camera that functions as an imaging device by combining a camera body 2 and a replaceable photographing lens 3.

  The photographic lens 3 includes a lens group 4 including a focus lens, a zoom lens, and an anti-vibration lens, an aperture 5, an angular velocity sensor 6 that detects shake of the camera system 1, a driving device (not shown) that drives the lens group 4, and the like. The angular velocity sensor 6 detects an angular velocity around at least two axes orthogonal to the optical axis. The drive device has a plurality of motors composed of, for example, a vibration wave motor and a VCM, drives the focus lens in the optical axis direction, and drives the anti-vibration lens in a direction different from the optical axis direction.

  The photographic lens 3 has a lens CPU 7 that controls the entire photographic lens 3 and cooperates with the camera body 2, and controls the photographer's heart rate, blood flow, blood pressure, sweating, body temperature, and photographic lens 3. It has a lens-side biosensor unit 8 that detects a gripping pressure and the like.

  The camera body 2 retreats so that the light beam from the photographic lens 3 is reflected and guided to the finder optical system 26 and the light beam from the photographic lens 3 is incident on an image sensor 27 composed of a CCD or a CMOS. A main mirror 28 that swings at the retracted position is provided. A partial area of the main mirror 28 is a semi-transmissive area, and the camera body 2 includes a sub-mirror 30 that reflects the light beam transmitted through the semi-transmissive area to the focus detection sensor 29. The sub mirror 30 swings in conjunction with the main mirror 28, and when the main mirror 28 takes the retracted position, the sub mirror 30 also retracts from the light flux. The focus detection sensor 29 detects the focus state of the incident light beam by the phase difference method.

  The light beam reflected by the main mirror 28 at the reflection position is guided to the finder optical system 26 via the focusing screen 31 and the pentaprism 32. The finder optical system 26 is composed of a plurality of lenses, and the photographer can check the object field with the finder optical system 26.

  A part of the light beam passing through the pentaprism 32 is guided to the photometric sensor 40. The photometric sensor 40 measures the luminance distribution of the object scene by measuring the light beam incident on the photographing lens 3 for each of a plurality of regions. In addition, a GPS (Global Positioning System) module 41 is provided above the pentaprism 32 and receives signals from GPS satellites to acquire position information where the camera system 1 exists. . Further, the camera body 2 includes a microphone 42 that captures the sound of the object scene at a position that does not interfere with the photographic lens 3 in the vicinity of the mount portion of the photographic lens 3, and a speaker 43 near the finder optical system 26.

  When the main mirror 28 is at the retracted position, the light beam from the photographing lens 3 enters the image sensor 27 via the low-pass filter 33. An imaging board 34 is provided in the vicinity of the imaging element 27, and a rear monitor 37 is provided behind the imaging board 34 so as to face the outside.

  A camera body side biosensor unit that detects the photographer's heart rate, blood flow, blood pressure, sweating volume, body temperature, pressure for gripping the camera body 2, and the like at the position where the photographer's right finger touches the camera body 2 16. The specific configuration and arrangement of the camera body side biosensor unit 16 will be described later.

  The camera body 2 includes an acceleration sensor 45. The acceleration sensor 45 detects the acceleration in the optical axis direction and the biaxial direction orthogonal to the optical axis direction. The acceleration sensor 45 outputs an acceleration when the camera system 1 is moved.

  FIG. 2 is an upper schematic view of the camera system 1 according to the present embodiment. Specifically, it is a diagram showing a state where the operator holds the camera body 2 with the right hand and holds the photographing lens 3 with the left hand. As described above, the photographing lens 3 includes the lens-side biological sensor unit 8 that detects the photographer's heart rate, blood flow, blood pressure, sweating volume, body temperature, pressure for grasping the photographing lens 3, and the like. The sensor unit 8 is disposed at a position where the finger or palm of the left hand of the photographer touches.

In the figure, a state in which a heart rate detection device 9 and a pulse wave detection device 12 are provided as part of the lens-side biosensor unit 8 is shown. The heart rate detection device 9 has a plurality of electrode parts separated from each other, each composed of a reference electrode 9a and a detection electrode 9b, and detects the heart rate of the photographer. Pulse-wave detecting device 12 has a plurality of light emitting portions _{12a (12a} 1 _{~12a 4)} and a light receiving portion _12b corresponding to these (12b 1 ~12b ₄₎ are alternately arranged, the photographer's pulse wave detection To do. The pulse wave detection device 12 is used to measure the blood flow and blood pressure of the photographer as will be described later.

  As described above, the camera main body 2 has the camera main body side biosensor unit 16 at a position where the right finger of the photographer touches. When the photographer holds the camera body 2, the thumb of the right hand is located on the back of the camera body 2, and the index finger is located in the vicinity of the release SW 24, so that it is separated from the other three fingers located on the grip portion. . For this reason, the camera body-side biosensor unit 16 has a camera rear surface position corresponding to the thumb of the right hand, a position near the release SW 24 corresponding to the index finger, and a camera front position near the grip section corresponding to the other three fingers. And spaced apart from each other. In addition, the camera main body side biosensor unit 16 corresponding to the index finger may be provided on the surface of the release SW 24.

  In the camera body 2, at least one of the camera front surface position where the three fingers other than the thumb and index finger of the right hand hold the camera body 2 and the camera rear surface position corresponding to the thumb of the right hand determines the camera body 2. It is a holding part to hold. In addition, a number of operations SW are provided on the back of the camera body 2, and these operations SW are operated with the right thumb. A shooting mode SW 25 for setting a shooting mode is provided on the upper surface of the camera body 2.

  FIG. 3 is a diagram illustrating a first state in which the photographing lens 3 is held with the left hand. The first state is a state in which the back of the left hand is positioned on the lower side and the photographing lens 3 is gripped. FIG. 4 is a diagram illustrating a second state in which the photographing lens 3 is held with the left hand. The second state is a state where the back of the left hand is positioned on the left side and the photographing lens 3 is gripped.

  When the photographer performs a zoom operation or a manual focus operation while holding the photographing lens 3, the thumb of the left hand is separated from the other fingers. Also, the manner of holding the photographic lens varies depending on different photographers and different photographing situations (for example, horizontal position photographing and vertical position photographing). Therefore, a plurality of lens-side biosensor units 8 (8A to 8D) are provided on the circumference of the photographing lens 3.

  Specifically, the lens-side biosensor unit 8 is at least one of a zoom operation position and a manual focus operation position, a position corresponding to the thumb of the left hand, and a position corresponding to a finger other than the thumb. They are spaced apart. More specifically, the lens-side biosensor unit 8 is provided at a position where the zoom operation rubber and the focus operation rubber are provided so as to contact the left hand or to face the left hand. Yes.

  In addition to the above-described heart rate detection device 9 and pulse wave detection device 12, the lens-side biological sensor unit 8A includes a sweating sensor 13 that detects the amount of sweating of the photographer, a temperature sensor 14 that detects the body temperature of the photographer, and imaging. A pressure sensor 15 is provided for detecting the pressure with which the person holds the photographing lens 3.

  Similarly to the lens-side biosensor unit 8A, the lens-side biosensor units 8B to 8D each include a heart rate detection device 9, a pulse wave detection device 12, a sweat sensor 13, a temperature sensor 14, and a pressure sensor 15. In this way, by providing a plurality of lens-side biosensors 8 (8A to 8D) on the circumference of the photographing lens 3, it is possible to detect biometric information from the palm of the left hand.

  In the present embodiment, a plurality of lens-side biosensors 8 (8A to 8D) are provided according to the zoom operation position, the manual focus operation position, and the like. The plurality of lens-side biosensor units 8 may be provided at positions other than the above-described positions as long as the biometric information can be detected even when the gripping method is changed. Further, since the force with which the thumb of the left hand grips the taking lens 3 is not so large, the pressure sensor 15 corresponding to the thumb of the left hand may be omitted in the lens side biosensor units 8B and 8C. Similarly, when high detection accuracy is not required for the lens-side biological sensor unit 8, the number of parts of the photographing lens 3 can be suppressed by appropriately omitting the sensor at the position corresponding to the thumb of the left hand. Further, the lens CPU 7 may be controlled to emit light only when a finger is applied to the light emitting unit 12a of the pulse wave detecting device 12.

  FIG. 5 is a view showing the camera body-side biosensor unit 16 provided in the vicinity of the release SW 24 of the camera body 2. As shown in the drawing, the camera body side biosensor unit 16 includes a heart rate detection device 17 having the same configuration as the heart rate detection device 9 and a pulse wave detection device 20 having the same configuration as the pulse wave detection device 12. Have. The camera body-side biosensor unit 16 includes a sweat sensor 21 that detects the amount of sweat of the photographer, a temperature sensor 22 that detects the body temperature of the photographer, and a pressure sensor that detects the pressure at which the photographer holds the camera body 2. 23. As described above, the camera body-side biosensor unit 16 is not limited to the position corresponding to the right index finger shown in the figure, but also to the camera back position corresponding to the thumb and the camera front position corresponding to the other three fingers. Although provided, each has the same configuration.

  FIG. 6 is a diagram illustrating a configuration of the heart rate detection device 17 and the pulse wave detection device 20 included in the camera body-side biosensor unit 16. As shown in FIG. 6 (a), the heart rate detection device 17 has a plurality of electrode parts separated from each other, each composed of a reference electrode 17a and a detection electrode 17b, and detects the heart rate of the photographer. Further, as shown in FIG. 6B, the pulse wave detection device 20 is configured by alternately arranging a plurality of light emitting units 20a (20a1 to 20a4) and light receiving units 20b (20b1 to 20b4) corresponding thereto. Detect the photographer's pulse.

  FIG. 7 is a block diagram of the camera system 1 according to the present embodiment. The image pickup substrate 34 includes a drive circuit 10 that drives the image pickup device 27, an A / D conversion circuit 11 that converts the output of the image pickup device 27 into a digital signal, an image processing control circuit 18 including an ASIC, and signals from the image pickup device 27 A contrast AF circuit 19 for extracting the high-frequency component of the.

  The image processing control circuit 18 performs image processing such as white balance adjustment, sharpness adjustment, gamma correction, and gradation adjustment on the image signal converted into the digital signal, and also performs image compression such as JPEG to generate an image file. Generate. The generated image file is stored in the image recording medium 35. The image recording medium 35 may be a recording medium such as a flash memory that is detachable from the camera body 2, or may be a recording medium such as an SSD (Solid State Drive) built in the camera body 2. .

  The image signal subjected to the image processing is displayed on the rear monitor 37 under the control of the rear monitor control circuit 36. If the image signal captured immediately after the image capture is displayed for a predetermined time, a REC review display that allows the photographer to visually recognize an image corresponding to the image file recorded on the image recording medium 35 can be realized. Further, live view display can be realized by sequentially displaying an object scene image, which is continuously photoelectrically converted by the image sensor 27, on the rear monitor 37 without being recorded on the image recording medium 35. Further, an object scene image that is continuously photoelectrically converted by the image sensor 27 is converted into, for example, MPEG, H.264, or the like. If moving image compression processing such as H.264 is performed by the image processing control circuit 18 and recorded in the image recording medium 35, moving image shooting can be realized. At this time, the sound of the object scene collected by the microphone 42 is also compressed and recorded in synchronization with the moving image data. The frame rate of the generated moving image is selected and set from a plurality of frame rates such as 30 fps, for example.

  The contrast AF circuit 19 extracts a high-frequency component of the image signal from the image sensor 27 to generate an AF evaluation value signal, and detects a focus lens position where this becomes the maximum. Specifically, a predetermined high-frequency component is extracted from the image signal input from the image processing control circuit 18 using a bandpass filter, and detection processing such as peak hold and integration is performed to generate an AF evaluation value signal. . The generated AF evaluation value signal is output to the camera body CPU 46.

  The lens CPU 7 drives the anti-vibration lens in the photographing lens 3 in a direction different from the optical axis direction so as to cancel the camera shake detected by the angular velocity sensor 6 to realize optical camera shake correction. Camera shake correction is not limited to such optical camera shake correction, and a drive mechanism is provided to the image sensor 27, and image sensor drive-type camera shake correction that cancels camera shake by driving in a direction different from the optical axis direction is adopted. You can also. Furthermore, an electronic camera shake that calculates a motion vector between a plurality of images output from the image processing control circuit 18 and cancels camera shake by controlling an image reading position so as to cancel the calculated motion vector between images. Corrections can also be employed. Optical camera shake correction and image sensor-driven camera shake correction are particularly suitable for still image shooting and are also applied to moving image shooting. Electronic camera shake correction is suitable for moving image shooting. These methods can be selectively and additionally employed.

  As described above, the photometric sensor 40 measures the luminance distribution of the object scene by measuring the luminous flux incident on the photographing lens 3 for each of a plurality of areas, and outputs the measurement result to the camera body CPU 46. The camera body CPU 46 calculates an exposure value according to the selected photometry mode. As a metering mode, a split metering mode that balances bright and dark parts, a center-weighted metering mode that properly exposes the center of the screen, a spot metering mode that properly exposes a narrow area of the selected focus point, and the like can be selected. .

  The calendar unit 38 includes a crystal oscillator, a timekeeping integrated circuit, and the like, and holds calendar information such as year / month / day / hour / minute / second. The camera body CPU 46 can appropriately detect information related to time from the calendar unit 38. The GPS module 41 receives a signal from a GPS satellite and acquires latitude, longitude, and altitude information where the camera body 2 exists. The camera body CPU 46 can appropriately detect information regarding the position where the camera body 2 is present from the GPS module 41.

  The flash ROM 39 is an EEPROM (registered trademark) and is a storage device that stores various adjustment values and setting values in addition to a program for operating the camera system 1. Specifically, AF adjustment data, AE adjustment data, manufacturing date / time data, setting SW setting history, and the like are stored. The flash ROM 39 also stores the normal biological information value of the photographer. In the present embodiment, the flash ROM 39 stores a heart rate, a blood flow rate, a blood pressure, a body temperature, a pressure for gripping the camera body 2, and a pressure for gripping the photographing lens 3 as biometric information values.

  The RAM 44 is a high-speed RAM such as a DRAM in which a program stored in the flash ROM 39 is expanded and the camera body CPU 46 can access at high speed. In particular, various adjustment values and setting values that are frequently referred to are also copied from the flash ROM 39 to facilitate access from the camera body CPU 46.

  As described above, the acceleration sensor 45 detects the acceleration in the optical axis direction and the biaxial direction orthogonal to the optical axis direction. In particular, even when the power switch of the camera system 1 is turned off, the power supply to the acceleration sensor 45 is always performed, and the detection of acceleration is continued. The camera body CPU 46 can also calculate the speed and displacement of the camera system 1 by integrating the output of the acceleration sensor 45. Particularly, by cooperating with the camera shake correction mechanism, translational shake can be corrected in addition to rotational shake. The acceleration sensor 45 may be provided in the photographing lens 3. In this case, when detecting the movement of the camera system 1, the camera main body CPU 46 acquires the output of the acceleration sensor 45 via the lens CPU 7.

  The release SW 24 is a two-stage switch. When the photographer presses the release SW 24 halfway, the camera body CPU 46 starts detection of the photographer's biological information using the lens-side biosensor unit 8 and the camera body-side biosensor unit 16 and performs photographing such as autofocus and photometry. Perform preparatory actions. Further, when the photographer fully presses the release SW 24, the camera body CPU 46 starts a still image / moving image shooting operation.

  The camera body CPU 46 controls the entire camera system 1 in cooperation with the lens CPU 7. In the present embodiment, the photographer's biometric information is acquired based on the outputs of the lens-side biosensor unit 8 and the camera-body-side biosensor unit 16, and control such as assist of the camera system 1 is performed. Here, the acquisition of the biometric information of the photographer by the lens side biosensor unit 8 and the camera body side biosensor unit 16 will be described.

  First, heart rate measurement will be described. As described above, the reference electrode 9a and the detection electrode 9b of the heart rate detection device 9 are provided at a position where the photographer holds the photographing lens 3 with the left hand, and the photographer grasps the camera body with the right hand. Are provided with a reference electrode 17a and a detection electrode 17b of the heart rate detection device 17. The detection potential from the detection electrodes 9b and 16b is output to the camera body CPU 46 after the potential difference is amplified by a differential amplifier (not shown). The camera body CPU 46 calculates the photographer's heart rate based on the potential difference between the detection electrodes 9b and 16b.

  For example, when the photographer does not hold the photographing lens 3, since the left hand of the photographer does not touch the reference electrode 9a and the detection electrode 9b, the space between the reference electrode 9a and the detection electrode 9b is open. . When the gap between the reference electrode 9a and the detection electrode 9b is open, the lens CPU 7 determines that the photographer is not holding the photographing lens 3. Similarly, the camera body CPU 46 determines that the photographer is not holding the camera body 2 when the reference electrode 17a and the detection electrode 17b of the heart rate detection device are open.

  Next, blood pressure measurement will be described. The pulse wave detection devices 12 and 20 measure the blood pressure of the photographer. Since pulse wave detection device 12 and pulse wave detection device 20 have the same configuration, pulse wave detection device 12 will be described as an example. The pulse wave detection device 12 emits, for example, infrared rays from the light emitting unit 12a, the infrared rays are reflected by the finger arteries, and the reflected infrared rays are received by the light receiving unit 12b which is an infrared sensor, whereby the pulse of the finger part of the hand is received. Detect waves. That is, the blood flow rate of the peripheral blood vessel is detected. The camera body CPU 46 calculates the blood pressure of the photographer based on the pulse wave from the pulse wave detection device 12. When the lens CPU 7 determines from the outputs of the reference electrode 9a and the detection electrode 9b of the heart rate detection device 9 that a finger of the photographer such as a little finger is not touching the photographing lens 3, the lens CPU 7 responds to the finger. By prohibiting the light emission of the arranged light emitting unit 12a, useless light emission is prevented and stray light is not emitted to the object scene. Similarly, the camera body CPU 46 determines that the pulse wave detection device 20 does not touch the camera body 2 based on the outputs of the reference electrode 17 a and the detection electrode 17 b of the heart rate detection device 17, for example. You may prohibit the light emission of the light emission part 20a.

  Next, perspiration measurement will be described. Sweating can be detected by measuring hand impedance. The perspiration sensors 13 and 21 have a plurality of electrodes and detect perspiration. The reference electrode 9a and the reference electrode 17a may be used as a part of the plurality of electrodes. The sweat sensor 13 is provided in each of the lens-side biosensors 8A to 8D. However, mental sweat such as impression, excitement, and tension has less sweat amount and shorter sweat time. You may provide only in the lens side biosensor part 8B and C located in the palm side of a middle hand with much quantity.

  Next, temperature measurement will be described. The temperature sensors 14 and 22 use a thermistor method in which the resistance value changes due to heat. Sweating includes the above-described mental sweating and thermal sweating for body temperature regulation, and mental sweating and thermal sweating interfere with each other. For this reason, the camera body CPU 46 can determine whether the photographer's sweating is mental sweating or thermal sweating based on the outputs of the sweating sensors 13 and 21 and the outputs of the temperature sensors 14 and 22. For example, if the temperature detected by the temperature sensor 22 is high and the sweat signal from the sweat sensor 21 is always detected, the camera body CPU 46 can determine that the sweat is thermal. Further, the camera main body CPU 46 can determine that the photographer is in a state of emotion, excitement, tension, etc., when the sweat signal from the sweat sensor 21 is output irregularly and is determined to be mental sweating. When the temperature sensors 14 and 22 are omitted, the main body CPU 44 determines that the sweat signal from the sweat sensors 13 and 21 is based on the positional information of the GPS module 41, the time information from the calendar unit 38, and the like. Or thermal sweating may be determined. Further, the lens CPU 7 can determine whether the sweat of the left hand is mental sweating or thermal sweating based on the outputs of the sweating sensor 13 and the temperature sensor 14.

  Next, pressure measurement will be described. The pressure sensor 15 is a capacitance type sensor, and measures the amount of deformation caused by the pressing force when the photographer holds the photographing lens 3. In the present embodiment, the pressure sensor 15 is provided below the operation rubber. The pressure sensor 23 is a similar capacitance type sensor, and measures the amount of deformation caused by the pressing force when the photographer holds the camera body 2. A strain gauge, an electrostrictive element, or the like may be used as the pressure sensors 15 and 23.

  As described above, the camera main body CPU 46 cooperates with the lens CPU 7 to acquire the photographer's biometric information based on the outputs of the lens side biosensor unit 8 and the camera main body side biosensor unit 16. Control assists. The control using the photographer's biological information will be specifically described below.

  FIG. 8 is an assist control flowchart of the camera system 1 according to the present embodiment. The assist control flow described below is a control flow intended to improve operability according to the situation of the camera system 1 determined from the acquisition of biological information and the output of the acceleration sensor 45, in particular.

  As described above, the camera system 1 supplies power to the acceleration sensor 45 even when the power switch is turned off. In step S101, acceleration is detected at regular intervals while the power switch is turned off. In step S102, the acceleration sensor 45 determines whether or not the detected acceleration a has exceeded a predetermined threshold value a1. If not, the process returns to step S101 and the acceleration detection is repeated. For example, the threshold value a1 is about 1G or 1.5G. However, the threshold value a1 may be appropriately set according to the size and mass of the camera system 1, and may be set to about 2G.

  When the output of the acceleration sensor 45 exceeds, supply of electric power is started so that at least a part of the functions of the camera body CPU 46 and the lens CPU 7 and the lens side biosensor unit 8 and the camera body side biosensor unit 16 operate. Then, the camera body CPU 46 starts counting a timer built in the camera body CPU 46 in step S103.

  In step S104, the camera body CPU 46 causes the lens-side biosensor unit 8 and the camera body-side biosensor unit 16 to detect biometric information. In step S105, the camera main body CPU 46 determines whether or not any biological information has been acquired from at least one of the results. If the camera body CPU 46 determines that biometric information has not been acquired, the camera body CPU 46 resets the timer, cuts off the power that has been supplied, and returns to step S101. On the other hand, when the camera body CPU 46 determines that the biological information has been acquired, the camera body CPU 46 proceeds to step S106 and executes the first process in the camera system 1. Specific processing will be described later.

  That is, the camera main body CPU 46 executes a predetermined first process when an acceleration exceeding a certain large acceleration determined by the threshold value a1 is detected and biological information is acquired. Such processing assumes, for example, a situation in which the camera system 1 stored in the bag is lifted and taken out by the photographer. When the camera system 1 is housed and transported in a bag, the acceleration is sometimes detected from the vibration, but if the camera system 1 is operated only by detecting the acceleration, it is contrary to the photographer's intention. Further, when the photographer tries to take out another item stored in the bag, he may accidentally touch the camera system 1, but even if the camera system 1 is operated only by obtaining the biological information, the photographer's Contrary to intention. Therefore, in the present embodiment, both the detection of acceleration and the acquisition of biological information are conditions for operating the camera system 1.

  Note that, according to the above steps, the acceleration is first detected, and the biological information is acquired when the acceleration exceeding the threshold value a1 is detected. However, the order may be reversed. That is, even when the power switch is turned off, it is monitored whether biometric information is acquired from at least one of the lens-side biosensor unit 8 and the camera body-side biosensor unit 16 at regular intervals. An acceleration may be detected when information is acquired.

  Various criteria can be set for the determination of biometric information acquisition in step S105. Examples of criteria are shown below.

  As described above, the camera body 2 has a camera body-side biosensor at a position corresponding to the right index finger, a camera back position corresponding to the thumb, and a camera front position near the grip portion corresponding to the other three fingers. The parts 16 are arranged in a distributed manner. Assuming that the photographer holds the grip with the right hand when the camera system 1 is lifted, in step S106, when the biological information of the right hand is acquired, that is, when the biological information is acquired from the camera body side sensor unit 16, the biological information is acquired. You may judge that there is information. That is, biometric information acquisition from the camera body side sensor unit 16 can be set as a determination criterion in step S105. Furthermore, when the photographer holds the grip, it is assumed that biometric information is acquired from the right thumb and the other three fingers. Therefore, it may be added to the determination criterion that biometric information is acquired from each of the camera body side biosensor units 16 disposed at the camera rear surface position and the camera front surface position corresponding to these. Since the camera system 1 of the present embodiment is a single-lens reflex camera, it is often operated with both hands, but there are some devices that can be operated with one hand, such as a compact camera, a video camera, and a mobile phone. It is effective for portable devices to use the biometric information acquisition as a criterion.

  As described above, the lens-side biosensor unit 8 and the camera body-side biosensor unit 16 are configured as a collection of various sensors, and each sensor outputs different types of biometric information. By judging these outputs alone or in combination, the photographer's emotion can be estimated. For example, when a high heart rate and mental sweating are detected, it can be estimated that the photographer feels impatient with a sudden photo opportunity or is excited. The correspondence between the sensor output and the emotion is obtained in a verification manner, and a table indicating the correspondence can be stored in the flash ROM 39. Therefore, in step S105, it is determined whether the acquired biometric information matches a specific emotion pattern described in the table. Only when they match, it is determined that there is biometric information and the process proceeds to step S106. Also good. That is, matching with a specific emotion pattern can be set as a determination criterion in step S105.

  Alternatively, instead of storing a table indicating the correspondence relationship, the flash ROM 39 may store biological information in a normal state of the photographer. That is, when the photographer is using the camera system 1, the biometric information of the photographer is periodically and continuously acquired, and a certain range of biometric information that is stable as an output of the sensor is obtained in a normal state. The information is stored in the flash ROM 39 as information. In step S105, the camera body CPU 46 compares the acquired biological information with the stored biological information, and when it is recognized that they are different from each other, there is biological information, that is, the photographer wants to shoot quickly. And the process proceeds to step S106. With this configuration, the camera can automatically assist a photographer who is not in a normal state to execute processing. In the normal state, the process may be executed after waiting for an explicit instruction from the photographer as usual. Therefore, the discrepancy with the normal state can be set as the determination criterion in step S105.

  After executing the first process in step S106, the camera body CPU 46 detects the acceleration by the acceleration sensor 45 again in step S107. Note that the first process of step S106 may not be completed and may proceed to step S107. Then, in step S108, the camera body CPU 46 determines whether or not the acceleration detected by the acceleration sensor 45 has fallen below a2 that is a predetermined threshold value. If not, the camera body CPU 46 proceeds to step S109 and determines whether or not the timer count value t has exceeded the timer limit t0. If it does not exceed, the camera body CPU 46 returns to step S107 again. If exceeded, the timer is reset, the supplied power is cut off, and the process returns to step S101.

  If the detected acceleration is below the predetermined threshold value a2 in step S108, the camera body CPU 46 proceeds to step S110 and executes the second process in the camera system 1. That is, if the acceleration that has once increased beyond the threshold value a1 falls below the threshold value a2 that is equal to or smaller than the threshold value a1, a second process that is determined in advance is executed. Such a process assumes, for example, a situation in which the camera system 1 housed in a bag is lifted and taken out by a photographer and is held by the photographer.

  Here, the first process and the second process described above will be described. The first process and the second process may be processes related to each other or may be independent processes. A plurality of processes may be executed as the first process or the second process. Examples of the first process and the second process will be described below.

  As the first process, it is possible to define the power ON of the entire camera system 1. That is, the first process of supplying power to the entire system in order to change from a sleep state in which power supply is interrupted or a sleep state in which power is limitedly supplied to a part of the camera system 1 to a normal startup state. It can be a process.

  Further, as the first process, among the program for operating the camera system 1 stored in the flash ROM 39, various adjustment values, and setting values, those that are resident in the RAM 44 can be defined as a process for copying to the RAM 44. Since the reading speed of the RAM 44 by the camera main body CPU 46 is faster than the reading speed of the flash ROM 39, a comfortable operability as the camera system 1 can be realized by resident a frequently used program or the like in the RAM 44.

  The second process can be defined as a process for starting the driving of the image sensor 27. As described above, the image sensor 27 is driven by the drive circuit 10, and the read output is converted into a digital signal by the A / D conversion circuit 11 and subjected to image processing by the image processing control circuit 18. A series of these operations is executed as the second process. If the photographer holds the camera system 1 and is stationary, the photographer wants to observe the scene image as soon as possible. Therefore, driving of the image sensor is started as the second process, and live view display is performed on the rear monitor 37.

  Further, the second process can be defined as a process for detecting the focus of the object scene image. That is, autofocus processing is executed. The autofocus process may be a phase difference method using the focus detection sensor 29 or a contrast method using the contrast AF circuit 19.

  Note that the relationship between the first process and the second process is relative, and any order may be used as the first process and any may be used as the second process as long as the order does not cause a contradiction when the processes are performed sequentially. For example, both the power ON and the start of driving of the image sensor 27 can be the first process, and the focus detection process can be the second process. Of course, the processes of the camera system 1 other than the above processes can be defined as the first process and the second process, respectively.

  Moreover, you may add biometric information acquisition again as conditions for performing a 2nd process by step S110. For example, if the photographer holds the camera system 1 and stands still, the photographer is expected to hold the photographing lens 3 with his left hand, so that the condition is that biometric information is acquired from the lens-side biosensor unit 8. Can do. Whether or not to add biometric information again as a condition may be based on the system state of the camera system 1. For example, if the taking lens 3 is a telephoto lens, it is assumed that it is normally held by the left hand because it has a long lens barrel, but if it is a standard short focus lens, the lens barrel is short and cannot be expected to be held by the left hand. In some cases. Therefore, the camera main body CPU 46 may be configured to determine the type of the photographic lens 3 that is mounted and determine whether or not to obtain biometric information from the lens-side biosensor unit 8 as a condition. .

  After executing the second process in step S110, the camera body CPU 46 executes the shooting process in step S111. Note that, depending on the type of the second process, the process can proceed to step S111 even if the process is not completed. Specifically, the shooting processing in step S111 includes processing such as exposure value determination, main shooting operation, image processing, and file recording.

  The exposure value is calculated by the camera body CPU 46 according to the selected photometry mode by causing the photometry sensor 40 to measure the luminance distribution of the object scene. In the actual photographing operation, the lens CPU 7 operates the diaphragm 5 according to the determined diaphragm value. The camera body CPU 46 causes the focal plane shutter to travel according to the determined exposure time, and guides the subject light flux to the image sensor 27. Further, the camera body CPU 46 performs charge reading by multiplying the output of the image sensor 27 by a predetermined gain according to the determined imaging sensitivity. Then, the image processing control circuit 18 performs image processing and compression processing on the image signal thus generated to generate an image file. The generated image file is recorded on the image recording medium 35, and a series of processing flow is completed.

  Here, the photographing process in step S111 may be performed after the release SW 24 is fully pressed, or may be automatically performed without waiting for the release SW 24 to be depressed. In particular, when it is estimated from the biological information that the photographer feels impatient, it is preferable to automatically perform the photographing process without waiting for the release SW 24 to be depressed. When the photographing process is automatically executed, the aperture value is reduced, the exposure time is shortened, and the imaging sensitivity is increased with respect to the exposure value calculated and set from the output of the photometric sensor 40 in order to prevent camera shake. It is better to reset at least one of them so that it is higher. In addition, when the image signal acquired by resetting any one becomes under, you may perform an image process so that it may become an image close | similar to appropriate exposure.

  In the above embodiment, the camera body 2 and the photographing lens 3 are configured to include the lens side biosensor unit 8 and the camera body side biosensor unit 16, respectively. However, the biological sensor may be configured independently so as to be directly attached to the photographer's body. For example, a wristwatch-type biosensor as disclosed in JP-A-2005-270543 (US Pat. No. 7,538,890) may be used. In this case, the camera system 1 includes a wired or wireless biological information acquisition unit, or a sensor that detects that a human hand is in contact with the camera system 1 or holds the camera system 1. It will be. Note that when a plurality of biosensors are provided, the respective outputs may be different. In such a case, it is possible to determine in advance which biosensor is prioritized for output, and it is possible to adopt measures such as calculating an average value of outputs.

  Moreover, in the said embodiment, although the camera system 1 which is a lens interchangeable single-lens reflex camera was demonstrated as an example of a portable apparatus, naturally it is not restricted to the camera system 1. In addition to compact digital cameras, mirrorless interchangeable-lens cameras, and video cameras, portable devices that can execute processing based on the detection results of the user's biological information and the output of the acceleration sensor (for example, laptop computers, game machines, mobile phones, music players, etc.) ) Any of the above concepts can be applied.

  As mentioned above, although this invention was demonstrated using embodiment, the technical scope of this invention is not limited to the range as described in the said embodiment. It will be apparent to those skilled in the art that various modifications or improvements can be added to the above-described embodiment. It is apparent from the scope of the claims that the embodiments added with such changes or improvements can be included in the technical scope of the present invention.

  The order of execution of each process such as operations, procedures, steps, and stages in the apparatus, system, program, and method shown in the claims, the description, and the drawings is particularly “before” or “prior to”. It should be noted that the output can be realized in any order unless the output of the previous process is used in the subsequent process. Regarding the operation flow in the claims, the description, and the drawings, even if it is described using “first”, “next”, etc. for convenience, it means that it is essential to carry out in this order. It is not a thing.

DESCRIPTION OF SYMBOLS 1 Camera system, 2 Camera body, 3 Shooting lens, 4 Lens group, 5 Aperture, 6 Angular velocity sensor, 7 Lens CPU, 8 Lens side biological sensor part, 9 Heart rate detection apparatus, 10 Drive circuit, 11 A / D conversion circuit , 12 Pulse wave detection device, 13 Sweating sensor, 14 Temperature sensor, 15 Pressure sensor, 16 Camera body side biosensor unit, 17 Heart rate detection device, 18 Image processing control circuit, 19 Contrast AF circuit, 20 Pulse wave detection device, 21 Sweating sensor, 22 Temperature sensor, 23 Pressure sensor, 24 Release SW, 25 Shooting mode SW, 26 Viewfinder optical system, 27 Image sensor, 28 Main mirror, 29 Focus detection sensor, 30 Sub mirror, 31 Focus plate, 32 Penta prism, 33 Low-pass filter, 34 Imaging substrate, 35 Image recording medium, 36 rear monitor control circuit, 37 rear monitor, 38 calendar section, 39 flash ROM, 40 photometric sensor, 41 GPS module, 42 microphone, 43 speaker, 44 RAM, 45 acceleration sensor, 46 camera body CPU

Claims (16)

A processing unit for processing;
A portable device comprising: a control unit that executes at least one process by the processing unit based on an acquisition result of a user's biological information and a detection result of an acceleration sensor. An acquisition unit for acquiring the biological information;
The portable device according to claim 1, wherein the control unit acquires the biological information by the acquisition unit when an acceleration detected by the acceleration sensor is greater than a first acceleration. An acquisition unit for acquiring the biological information;
The portable device according to claim 1, wherein the control unit determines whether an acceleration by the acceleration sensor is larger than a first acceleration when the biological information is acquired by the acquisition unit.   The portable device according to claim 2, wherein the control unit causes the processing unit to execute the process when the biological information is acquired.   The portable device according to any one of claims 2 to 4, wherein the control unit causes the processing unit to execute the process when the biological information of the right hand of the user is acquired.   The portable device according to claim 4, wherein the control unit starts supplying power to at least some of the circuits of the portable device. A first memory;
A second memory having a faster reading speed than the first memory,
The portable device according to claim 4, wherein the control unit develops at least a part of a program for operating the portable device from the first memory to the second memory.   The said control part makes the said process part perform the process different from the process already performed when the acceleration which exceeded the said 1st acceleration is less than the said 1st acceleration. Portable device. An imaging unit that photoelectrically converts an incident optical image,
The portable device according to claim 8, wherein the control unit drives the imaging unit. An imaging unit that photoelectrically converts an incident optical image;
A focus detection unit for detecting the focus of the optical image,
The portable device according to claim 8, wherein the control unit detects a focus of the optical image by the focus detection unit.   The portable device according to claim 10, wherein the control unit executes imaging by the imaging unit after focus detection by the focus detection unit.   The portable device according to claim 9, wherein the control unit changes the imaging sensitivity to a higher imaging sensitivity than the set imaging sensitivity.   The portable device according to claim 9, wherein the control unit changes the exposure time to be shorter than a set exposure time.   The portable device according to any one of claims 8 to 13, wherein the control unit causes the processing unit to execute a process different from a process that has already been executed when the biological information of the left hand of the user is acquired.   The portable device according to any one of claims 1 to 14, wherein the control unit causes the processing unit to execute a process when the acquired biological information matches a stored emotion pattern. An accumulator that accumulates the biological information acquired according to a predetermined condition;
The portable device according to any one of claims 1 to 15, wherein the control unit causes the processing unit to execute a process when the acquired biological information is different from the biological information stored in the storage unit.

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