JP2005151285A - Imaging device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an imaging device capable of searching for image data by environmental conditions. <P>SOLUTION: A camera includes a temperature sensor 22 and a humidity sensor 24. When photographing, data of the temperature and the humidity detected by the temperature sensor 22 and the humidity sensor 24 are added to the photographed image data and recorded on a recording medium 120. If a search is to be made for reproduction with the temperature, or the humidity, or the temperature and humidity specified; the image data with the specified temperature, the humidity or the temperature and humidity is retrieved based on the temperature and humidity data added to each image data, and the search results are reproduced and displayed on a monitor 30. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an imaging apparatus, and more particularly to an imaging apparatus having a search function for image data recorded on a recording medium.

  Generally, image data photographed with a digital camera is recorded on a replaceable memory card loaded in the camera body. In recent years, due to the increase in capacity of this memory card, it is possible to record an enormous number of image data on one memory card.

  However, when an enormous number of image data is recorded on one memory card in this way, there is a problem that it takes time to manage the image data after shooting, making it difficult to find the desired image data.

Therefore, in Patent Document 1, for example, image data list data recorded on a memory card is created separately from image data, and feature information for recognizing the contents of each image data is recorded in the list data. By doing so, it is possible to search using the list data.
JP 2002-51280 A

  However, Patent Document 1 has a drawback that image data cannot be searched using information that is not recorded as feature information as a keyword. For this reason, when it is desired to investigate changes in the flowering situation or changes in clothing due to changes in temperature or humidity, there is a drawback that searching based on environmental conditions such as temperature and humidity cannot be performed.

  In addition, since list data must be created separately, there is a drawback that it takes time and effort to manage.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide an imaging apparatus capable of searching for image data according to environmental conditions.

  In order to achieve the object, the invention according to claim 1 is an image pickup apparatus that picks up an image with an image pickup means and records the obtained image data on a recording medium, and a humidity detection means that detects the humidity of the outside air; Recording control means for adding information on the humidity detected by the humidity detection means to the image data obtained from the imaging means and recording it on the recording medium, and a search keyword for the image data recorded on the recording medium Search condition input means for inputting humidity, and image data extraction means for comparing the humidity information of each image data recorded on the recording medium with the humidity input from the search condition input means, and extracting matching image data And a display control means for displaying the image data extracted by the image data extraction means on the display means. To.

  According to the present invention, when an image is picked up by the image pickup means, humidity information is added to the image data obtained from the image pickup means and recorded on the recording medium. When the search is performed by specifying the humidity as the search keyword, the image data of the specified humidity is extracted from the image data recorded on the recording medium and displayed on the display means.

  According to a second aspect of the present invention, in order to achieve the above object, in the image pickup apparatus for picking up an image with an image pickup means and recording the obtained image data on a recording medium, the temperature detection means for detecting the temperature of the outside air And recording control means for adding the temperature information detected by the temperature detection means to the image data obtained from the imaging means and recording it on the recording medium, and searching for the image data recorded on the recording medium Search condition input means for inputting temperature as a keyword, and image for extracting matching image data by comparing temperature information of each image data recorded on the recording medium with the temperature input from the search condition input means An image pickup comprising: data extraction means; and display control means for displaying the image data extracted by the image data extraction means on a display means To provide a location.

  According to the present invention, when an image is picked up by the image pickup means, temperature information is added to the image data obtained from the image pickup means and recorded on the recording medium. When the temperature is specified as a search keyword and the search is performed, the image data at the specified temperature is extracted from the image data recorded on the recording medium and displayed on the display means.

  According to a third aspect of the present invention, in order to achieve the above object, in the image pickup apparatus for picking up an image with an image pickup means and recording the obtained image data on a recording medium, the temperature detection means for detecting the temperature of the outside air And humidity detection means for detecting the humidity of the outside air, temperature information detected by the temperature detection means, and humidity information detected by the humidity detection means as additional information in the image data obtained from the imaging means In addition, recording control means for recording on the recording medium, search condition input means for inputting temperature, humidity, or temperature and humidity as a search keyword for image data recorded on the recording medium, and recording on the recording medium The image data extractor that collates the additional information of each image data and the search keyword input from the search condition input means and extracts the matching image data. Providing means, display control means for displaying on the display unit the image data extracted by the image data extraction unit, an image pickup apparatus characterized by comprising a.

  According to the present invention, when an image is picked up by the image pickup means, temperature and humidity information is added to the image data obtained from the image pickup means and recorded on the recording medium. Then, when searching by specifying temperature or humidity or temperature and humidity as a search keyword, image data of the specified temperature, humidity or temperature and humidity is extracted from the image data recorded on the recording medium and displayed. Displayed on the means.

  According to a fourth aspect of the present invention, in order to achieve the above object, the temperature detection means is provided inside the imaging apparatus main body and first temperature detection means provided outside the imaging apparatus main body. A second temperature detecting means; a temperature difference calculating means for calculating a temperature difference between the detected temperature of the first temperature detecting means and the detected temperature of the second temperature detecting means; the detected temperature of the first temperature detecting means; In accordance with the temperature difference calculated by the correction information storage means storing correction information of the temperature detected by the first temperature detection means corresponding to the temperature difference from the temperature detected by the second temperature detection means, and by the temperature difference calculation means Temperature correction means for acquiring the corrected information from the correction information storage means and correcting the temperature detected by the first temperature detection means, and detecting the temperature detected by the first temperature detection means corrected by the temperature correction means. Characterized by the temperature of the outside air To provide an imaging apparatus according to claim 2 or 3.

  According to the present invention, it is possible to eliminate the temperature measurement error due to heat generation of the imaging apparatus and to detect the accurate temperature of the outside air.

  According to the present invention, it is possible to search image data recorded on a recording medium by temperature, humidity, or temperature and humidity.

  The best mode for carrying out an imaging apparatus according to the present invention will be described below with reference to the accompanying drawings.

  1 and 2 are a front perspective view and a rear perspective view, respectively, showing an embodiment of a digital camera 10 to which the present invention is applied.

  As shown in FIG. 1, a lens 14, a strobe 16, a finder window 18, a self-timer lamp 20, a temperature sensor 22, a humidity sensor 24, and the like are provided on the front of the camera body 12, and a release button is provided on the upper surface. 26, a power button 28, and the like are provided.

  As shown in FIG. 2, on the back of the camera body 12, there are a monitor 30, a viewfinder eyepiece 32, a strobe button 34, a macro button 36, a zoom lever 38, a display button 40, a BACK button 42, and a menu / OK button. 46, a cross button 48, a mode switch 50, and the like are provided.

  The lens 14 is constituted by a retractable zoom lens, and is set out from the camera body 12 by setting the camera mode to the photographing mode and turning on the power.

  The temperature sensor 22 and the humidity sensor 24 detect the temperature and humidity of the outside air, respectively. At the time of photographing, the temperature sensor 22 and the humidity sensor 24 detect the temperature and humidity of the outside air, and the detected temperature and humidity are added as attached information to the photographed image data.

  The release button 26 is composed of a two-stroke switch that is half-pressed and fully pressed. In the digital camera 10, AE / AF is activated when the release button 26 is half-pressed, and shooting is performed when the release button 26 is fully pressed.

  The monitor 30 is composed of a liquid crystal display capable of color display, and recorded images are reproduced and displayed on the monitor 30. Further, the monitor 30 is used as a display screen of a user interface, and at the time of photographing, a through image is displayed and used as an electronic viewfinder.

  The strobe button 34 functions as a button for instructing switching of the strobe mode. Each time the strobe button 34 is pressed, the strobe mode being shot is changed to “auto flash” → “red-eye reduction strobe” → “forced flash strobe” → “Slow Sync” → “Flash Off” can be switched.

  The macro button 36 functions as a button for instructing switching of the macro function ON / OFF. Each time the macro button 36 is pressed, the macro function being photographed is switched ON / OFF.

  The zoom lever 38 functions as a button for instructing zoom (tele / wide) of a captured image at the time of shooting, and functions as a button for instructing zoom (enlargement / reduction) of a display image at the time of reproduction. The zoom lever 38 is provided so as to be swingable in the vertical direction. When the zoom lever 38 is operated upward, the zoom is operated to the tele side, and when operated downward, the zoom is operated to the wide side. .

  The display button 40 functions as a button for instructing to switch the display of the monitor 30. By pressing the display button 40 during shooting, the through image displayed on the monitor 30 is turned on / off. In addition, during playback, by pressing this display button, switching from normal playback to playback without character display and multi playback is possible.

  The menu / OK button 46 functions as a button (menu button) for instructing a transition from the normal screen to the menu screen in each mode, and also functions as a button (OK button) for instructing confirmation and execution of the selection contents. The button 42 functions as a button for instructing to cancel the input operation.

  The cross button 48 functions as a button for inputting instructions in four directions, up, down, left, and right, and is used for selecting a desired item on a menu screen or the like.

  The mode switch 50 functions as a switch for instructing switching of the camera mode, and by sliding the mode switch 50, the camera mode is set to “shooting mode” or “reproduction mode”.

  FIG. 3 is a block diagram showing a schematic internal configuration of the digital camera 10 shown in FIGS. 1 and 2.

  In the figure, a CPU 100 is a control unit that performs overall control of each circuit of the camera system, and includes storage means such as a ROM 102 and a RAM 104. The ROM 102 stores programs processed by the CPU 100 and various data necessary for control, and the RAM 104 is used as a work area when the CPU 100 performs various arithmetic processes. The CPU 100 includes an operation unit (release button 26, power button 28, strobe button 34, macro button 36, zoom lever 38, display button 40, BACK button 42, menu / OK button 46, cross button 48, mode switch 50, etc.) 106 The operation of the corresponding circuit is controlled based on the operation signal output from the camera, and lens drive control, shooting operation control, image processing control, image data recording / reproduction control, monitor 30 display control, etc., and automatic exposure ( Various calculation processes such as AE) calculation, automatic focus adjustment (AF) calculation, and white balance (WB) adjustment calculation are executed.

  The light that has passed through the lens 14 enters a CCD image sensor (CCD) 108. Photosensors are arranged in a plane on the light receiving surface of the CCD 108, and an optical image of a subject formed on the light receiving surface of the CCD 108 via the lens 14 is a signal corresponding to the amount of incident light by each photosensor. Converted to electric charge.

  The signal charge accumulated in each photosensor is sequentially read out as a voltage signal (image signal) corresponding to the signal charge based on a driving pulse given from a timing generator (not shown) and sent to the analog signal processing unit 110.

  The analog signal processing unit 110 includes a signal processing circuit such as a sampling hold circuit, a color separation circuit, a gain adjustment circuit, an A / D converter, and the image signal input by the analog signal processing unit 110 is correlated double sampling. Processing and color separation processing are performed on each of the R, G, and B color signals, and signal level adjustment (pre-white balance processing) of each color signal is performed. Then, it is converted into a digital image signal and stored in the RAM 104.

  The image signal stored in the RAM 104 is sent to the image signal processing unit 112. The image signal processing unit 112 includes a digital signal processor (DSP) including a luminance / color difference signal generation circuit, a gamma correction circuit, a sharpness correction circuit, a contrast correction circuit, a white balance correction circuit, and the like, and is input according to a command from the CPU 100. The processed image signal is processed. The image signal input to the image signal processing unit 112 is converted into a luminance signal (Y signal) and a color difference signal (Cr, Cb signal) and subjected to predetermined processing such as gamma correction and then stored in the RAM 104. Stored.

  The image data stored in the RAM 104 is input to the display unit 114. The display unit 114 converts the input image data into a predetermined signal for display (for example, an NTSC color composite video signal) and outputs the signal to the monitor 30.

  The image data in the RAM 104 is periodically rewritten by the image signal output from the CCD 108, and the image signal generated from the image data is supplied to the monitor 30, so that the image input via the CCD 108 is real-time. It is displayed on the monitor 30. The photographer can confirm the shooting angle of view from the real-time image (through image) displayed on the monitor 30.

  The display unit 114 includes an OSD signal generation circuit, and the OSD signal generation circuit displays character and symbol information such as a shutter speed, an aperture value, the number of images that can be captured, a shooting date and time, and a warning message according to a command from the CPU 100. Generate a signal. A signal output from the OSD signal generation circuit is mixed with an image signal as necessary and supplied to the monitor 30. As a result, a combined image in which characters and the like are combined with the through image and the reproduced image is displayed.

  When the mode of the camera is set to the shooting mode by the mode switch 50, the digital camera 10 can perform shooting. When the release button 26 is half-pressed in this state, an S1 ON signal is issued to the CPU 100. The CPU 100 detects this S1 ON signal and executes AE and AF operations. That is, the CPU 100 controls a lens driving unit (not shown) so that the subject is in focus, measures the brightness of the subject, and determines the aperture value and the shutter speed so as to achieve proper exposure.

  Thereafter, when the release button 26 is fully pressed, an S2ON signal is issued to the CPU 100, and the CPU 100 detects the S2ON signal and starts recording processing of image data.

  First, an aperture driving unit (not shown) and the electronic shutter of the CCD 108 are controlled so that the aperture value and shutter speed determined when the release button 26 is half-pressed, and an image for one frame from the CCD 108 via the analog signal processing unit 110 is controlled. The signal is taken into the RAM 104.

  At the same time, temperature data of outside air is acquired from the temperature sensor 22 and humidity data of outside air is acquired from the humidity sensor 24.

  The image signal taken into the RAM 104 is subjected to predetermined signal processing by the image signal processing unit 112, stored again in the RAM 104, and sent to the image recording unit 116.

  The image recording unit 116 includes a compression / decompression processing circuit, and the compression / decompression processing circuit compresses image data input according to a command from the CPU 100 according to JPEG or another predetermined format. Then, predetermined attached information including temperature data and humidity data is added to the header portion of the compressed image data (for example, temperature data is signed 1-byte data (-127 ° C. to + 128 ° C.), and humidity information is unsigned. An image file of a predetermined format, for example, EXIF format is generated by adding 1 byte (0% to 100%) as data).

  The generated image file is recorded on the recording medium 120 from the image recording unit 116 via the media interface (media I / F) 118. The recording medium 120 may be a removable recording medium such as an xD picture card, smart media, compact flash, magnetic disk, optical disk, magneto-optical disk, memory stick, or a built-in recording medium (internal memory). Good.

  When the playback mode is selected by the mode switch 50, the image recorded on the recording medium 120 can be played back.

  When the mode switch 50 is set to the playback mode, the CPU 100 detects this and reads the image data of the image file recorded last on the recording medium 120. The read image data is output to the monitor 30 via the display unit 114 after being subjected to a required expansion process in the image recording unit 116. Thereby, browsing of the image recorded on the recording medium 120 becomes possible.

  The frame advance of the image is performed by the cross button 48, and when the right key of the cross button 48 is pressed, the next image is reproduced and displayed on the monitor 30. When the left key of the cross button 48 is pressed, the previous image is reproduced and displayed on the monitor 30.

  By the way, in the case of such a reproduction method, in order to search for an image that the user wants to see from the recorded images, it is necessary to search the image while feeding it one by one and checking it one by one. .

  However, such a manual search method has a problem that the target image file cannot be easily accessed when the number of image data recorded on the recording medium 120 increases.

  In view of this, the digital camera 10 according to the present embodiment is configured so that an image can be searched based on temperature and humidity at the time of shooting in order to facilitate the search for an image file. The image search based on the temperature and humidity will be described below.

  The image search function is provided in the digital camera 10 as one function of the playback mode, and is called from the playback menu under the playback mode.

  First, the mode of the camera is set to the playback mode with the mode switch 50 and the menu / OK button 46 is pressed. As a result, a playback menu screen is displayed on the monitor 30 as shown in FIG. Here, it is assumed that two items of “frame erase” for deleting an image and “frame search” for searching for an image are prepared as items of a playback menu. The user selects “frame search” from the items of the reproduction menu. Items are selected using the up and down keys of the cross button 48. When the cross button 48 is operated, the cursor indicating the selected item moves. The menu / OK button 46 confirms the selection.

  When the “frame search” item is selected and confirmed with the cursor, the display of the monitor 30 is switched, and a frame search menu screen is displayed on the monitor 30 as shown in FIG. In this frame search menu screen, a frame search method is selected. (1) “Search by temperature”, which is a method of searching by specifying temperature, (2) “Search by humidity”, which is a method of searching by specifying humidity, (3) Specifying temperature and humidity The search method desired by the user is selected from the three search methods “search by temperature and humidity” which are search methods. Items are selected using the up and down keys of the cross button 48 as described above. When the cross button 48 is operated, the cursor indicating the selected item moves. The menu / OK button 46 confirms the selection.

  Here, “Search by temperature” is selected. When “search by temperature” is selected and confirmed with the cursor, the display of the monitor 30 is switched, and an input screen for the temperature to be searched is displayed on the monitor 30 as shown in FIG. The temperature can be input by specifying a range, and the lower limit and the upper limit of the temperature can be input.

  The temperature is set with the cross button 48. That is, the selection of the temperature input fields (the upper limit input field and the lower limit input field) is switched by the right key and the left key of the cross button 48 and is displayed in the input field selected by the up key and the down key. The temperature value increases or decreases. Note that a cursor indicating that the temperature is selected is displayed at the bottom of the input field in the temperature input field of the currently selected one. The temperature displayed in the temperature input field changes, for example, in units of 1 ° C. every time the upper key and the lower key of the cross button 48 are pressed once. When specifying a specific temperature, the upper limit temperature and the lower limit temperature are set to the same value.

  When the upper limit and lower limit of the temperature to be searched are input in this way and the menu / OK button 46 is pressed, the search is started. That is, the CPU 100 reads temperature data at the time of shooting recorded as attached information for all image files recorded on the recording medium 120 and collates them with the input temperature range. Then, an image file having temperature data matching the input temperature range is extracted, and the image of the extracted image file is reproduced and displayed on the monitor 30 as a search result as shown in FIG.

  Here, when a plurality of image files are extracted as a search result, the image file recorded on the recording medium 120 first among the image files (the image file with the smallest file number assigned in the shooting order). ) Is reproduced and displayed on the monitor 30.

  In addition, the number of searched images is displayed on the reproduced image. Here, as shown in FIG. 5 (b), the number of images displayed in the form of fractions at the upper right of the screen and searched for in the denominator, and the number of reproduction orders in the numerator (the number of images reproduced) Number) is displayed.

  Then, when the right key or the left key of the cross button 48 is pressed, the images of the extracted image file are sequentially displayed and displayed.

  As described above, by selecting “search by temperature” from the “frame search” menu item, an image can be searched using the temperature at the time of shooting as a search keyword.

  Next, the case of searching by the humidity at the time of shooting will be described. When searching for an image by humidity at the time of shooting, “Search by humidity” is selected from the “Frame search” menu item shown in FIG.

  When “Search by Humidity” is selected from the “Frame Search” menu item shown in FIG. 4B and executed, the display of the monitor 30 is switched. As shown in FIG. The input screen is displayed.

  The humidity can be input by designating a range in the same manner as at the above temperature, and a lower limit and an upper limit can be input.

  The input is also performed with the cross button 48 as in the case of the above temperature. In other words, the selection of the humidity input field (the upper limit input field and the lower limit input field) is switched by the right key and the left key of the cross button 48, and is displayed in the input field selected by the up key and the down key. Humidity values increase or decrease. The humidity displayed in the input field changes, for example, in units of 1% each time the upper key and the lower key of the cross button 48 are pressed once.

  When the upper limit and the lower limit of the humidity to be searched are input in this way and the menu / OK button 46 is pressed, the search is started. That is, the CPU 100 reads out the humidity data at the time of shooting recorded as attached information for all the image files recorded on the recording medium 120 and collates them with the input humidity range. Then, an image file having humidity data that matches the input humidity range is extracted, and the image of the extracted image file is reproduced and displayed on the monitor 30 as a search result as shown in FIG. If a plurality of image files are extracted as a result of the search, the image of the image file recorded first on the recording medium 120 among the image files is reproduced and displayed on the monitor 30, and the right key of the cross button 48 is used. Alternatively, the images of the image file extracted with the left key are sequentially advanced.

  In this manner, by selecting “Search by humidity” from the “Frame search” menu item, an image can be searched using the humidity at the time of shooting as a search keyword.

  Next, the case of searching by temperature and humidity at the time of shooting will be described. When searching for an image by temperature and humidity at the time of shooting, “Search by temperature and humidity” is selected from the “Frame search” menu item shown in FIG.

  When “search by temperature and humidity” is selected from the menu item “frame search” shown in FIG. 4B and executed, the display of the monitor 30 is switched, and the search is performed as shown in FIG. 7A. The input screen for temperature and humidity is displayed.

  The temperature and humidity can be input by specifying a range in the same manner as at the above temperature, and a lower limit and an upper limit can be input.

  The input is also performed with the cross button 48 as in the case of the above temperature. That is, the right and left keys of the cross button 48 can be used to select a temperature and humidity input field (temperature lower limit input field → temperature upper limit input field → humidity upper limit input field → humidity lower limit input field). It is switched, and the numerical value of temperature or humidity displayed in the input field selected by the up key and the down key is increased or decreased. The temperature or humidity displayed in the input field changes, for example, in units of 1 ° C. or 1% each time the upper key and lower key of the cross button 48 are pressed once.

  When the upper and lower limits of temperature and humidity to be searched are input in this way and the menu / OK button 46 is pressed, the search is started. That is, the CPU 100 reads temperature data and humidity data at the time of shooting recorded as attached information for all image files recorded on the recording medium 120, and collates them with the input temperature and humidity ranges. . Then, an image file having temperature data and humidity data matching the input temperature and humidity ranges is extracted, and the image of the extracted image file is reproduced and displayed on the monitor 30 as a search result as shown in FIG. 7B. Let If a plurality of image files are extracted as a result of the search, the image of the image file recorded first on the recording medium 120 among the image files is reproduced and displayed on the monitor 30, and the right key of the cross button 48 is used. Alternatively, the images of the image file extracted with the left key are sequentially advanced.

  Thus, by selecting “Search by temperature and humidity” from the “Frame search” menu item, it is possible to search for an image using the temperature and humidity at the time of shooting as search keywords.

  As described above, according to the digital camera 10 of the present embodiment, the temperature data and the humidity data acquired from the temperature sensor 22 and the humidity sensor 24 at the time of photographing are added to the photographed image data and recorded, thereby photographing. Later, temperature, humidity, or temperature and humidity can be searched as search keywords. Thereby, for example, when the growth of the plant is periodically photographed, it is possible to easily examine how the growth of the plant changes depending on the temperature and humidity. In general photography, it becomes possible to easily check what kind of clothes he / she was wearing according to temperature and humidity.

  In the present embodiment, the image data is searched by temperature, humidity, or temperature and humidity, but the month or season may be further added to the search condition. That is, image date / time data is added to the image data and recorded (therefore, a timer for measuring the image date / time is provided in the digital camera), and the added date / time data is used to add the month or season. Be searchable.

  For example, in order to add the month to the search condition, as shown in FIG. 8A, as the frame search menu, “Search by month and temperature”, “Search by month and humidity”, “Month, temperature and humidity” The search may be made by newly adding three items of search. In this case, for example, when “Search by month and temperature” is selected, the search condition is input by inputting the range of the month to be searched and the temperature range (upper and lower limits) as shown in FIG. It can be so.

  Also, for example, when adding seasons to the search condition, as shown in FIG. 9A, as the frame search menu, “search by season and temperature”, “search by season and humidity”, “season and temperature and The search may be made by newly adding three items of search by “humidity”. In this case, for example, when “Search by season and temperature” is selected, the search condition can be input as shown in FIG. 9B by entering the search season and temperature range (upper limit and lower limit). To. As for the season, for example, March to May is “Spring”, June to August is “Summer”, September to November is “Autumn”, and December to February is “Winter”. Search for data.

  Further, a secondary search may be performed to narrow down the search results. That is, when there are many search results, a search is further performed from the search results so that a secondary search can be performed. For example, as shown in FIG. 10A, when many images are searched as a result of search by temperature as shown in FIG. 10B, the menu / OK button 46 is pressed on the search result screen. Then, as shown in FIG. 10C, the screen for narrowing search is called up on the monitor 30. Then, as shown in FIG. 10D, a search condition for narrowing down can be input (here, “squeeze search by humidity” is selected). The CPU 100 searches for image data that meets the input search condition from the first search results.

  Thus, by enabling the secondary search, access to the target image is further facilitated.

  FIG. 11 is a block diagram of a second embodiment of a digital camera to which the present invention is applied.

  In the digital camera 10 of the first embodiment, the temperature of the outside air is detected by the temperature sensor 22 installed in the camera body 12. However, since the internal device generates heat due to use of the digital camera 10, the influence of the heat generation. The accurate temperature of outside air may not be detected.

  Therefore, in the digital camera of the present embodiment, the temperature inside and outside the camera body is detected, and the detection value of the outside temperature (outside air temperature) is corrected based on the temperature difference, thereby reducing the influence of heat generation. It is possible to obtain the accurate outside air temperature lost.

  In addition, since it is the same structure as the digital camera 10 of 1st Embodiment mentioned above except having two temperature sensors, the same code | symbol is attached | subjected to the same structural member and the description is abbreviate | omitted.

As shown in FIG. 11, the camera body 12 includes an external temperature sensor 22 </ b> A that detects an external temperature (outside air temperature) T _OUT of the camera body 12, and an internal temperature that detects an internal temperature T _IN of the camera body 12. A sensor 22B is provided. The temperature T _OUT outside the camera body 12 detected by the external temperature sensor 22A and the temperature T _IN inside the camera body 12 detected by the internal temperature sensor 22B are input to the CPU 100.

The CPU 100 obtains a temperature difference ΔT between the input temperature T _OUT outside the camera body 12 and the internal temperature T _IN . Then, the correction amount T _C of the external temperature T _OUT corresponding to the temperature difference ΔT is acquired from the correction table stored in the ROM 102.

Here, in the ROM 102, the correction amount T _C of the external temperature T _OUT is stored in advance as a correction table in accordance with the temperature difference ΔT between the external temperature T _OUT of the camera body 12 and the internal temperature T _IN. Yes. The CPU 100 acquires a correction amount T _C of the external temperature T _OUT corresponding to the temperature difference ΔT calculated based on this correction table. Then, the true outside temperature (outside air temperature) T is obtained by subtracting the obtained correction amount T _C (T = T _OUT −T _C ).

  At the time of shooting, this true external temperature T is added to the shot image data as the temperature of the outside air at the time of shooting.

  As described above, according to the digital camera 10 of the present embodiment, it is possible to remove the influence of heat generation of the internal device and obtain an accurate outside air temperature. Thereby, it is possible to accurately record the outside air.

In the present embodiment, the correction amount T _C of the external temperature T _OUT based on the temperature difference ΔT is acquired from the correction table stored in the ROM 102 in advance, but may be obtained from an arithmetic expression. That is, an arithmetic expression T _C = F (ΔT) for obtaining the correction amount T _C of the external temperature T _OUT based on the temperature difference ΔT is stored in the ROM 102 in advance, and the correction amount T _C is obtained from this arithmetic expression. Also good.

  In the above embodiment, a case where both a temperature sensor and a humidity sensor are provided in one digital camera has been described as an example. However, only one of the temperature sensor and the humidity sensor may be provided. Good. In this case, in a digital camera having only a temperature sensor, temperature information is added to the captured image data and recorded on a recording medium. At the time of image search, the image is searched using only the temperature as a search keyword. In a digital camera having only a humidity sensor, humidity information is added to the captured image data and recorded on a recording medium. At the time of image search, an image is searched using only humidity as a search keyword.

  Further, although cases have been described with the above embodiment as examples where the present invention is applied to a digital camera, the present invention can also be applied to a mobile phone, a PDA, or the like having a photographing function.

Front perspective view of digital camera Rear perspective view of digital camera Block diagram showing the schematic internal configuration of the digital camera Figure showing a monitor display example during search Figure showing a monitor display example during search Figure showing a monitor display example during search Figure showing a monitor display example during search The figure which shows the example of a display of the monitor at the time of the search of other embodiment The figure which shows the example of a display of the monitor at the time of the search of other embodiment The figure which shows the example of a display of the monitor at the time of the search of other embodiment The block diagram which shows schematic structure inside the digital camera of 2nd Embodiment

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Digital camera, 12 ... Camera body, 14 ... Lens, 16 ... Strobe, 18 ... Finder window, 20 ... Self-timer lamp, 22 ... Temperature sensor, 22A ... External temperature sensor, 22B ... Internal temperature sensor, 24 ... Humidity sensor , 26 ... Release button, 28 ... Power button, 30 ... Monitor, 32 ... Viewfinder eyepiece, 34 ... Strobe button, 36 ... Macro button, 38 ... Zoom lever, 40 ... Display button, 42 ... BACK button, 46 ... Menu / OK button, 48 ... cross button, 50 ... mode switch, 100 ... CPU, 102 ... ROM, 104 ... RAM, 106 ... operation unit, 108 ... CCD image sensor (CCD), 110 ... analog signal processing unit, 112 ... image Signal processing unit, 114 ... display unit, 116 ... image recording unit, 118 ... media interface Esu (media I / F), 120 ... recording media

Claims (4)

In an imaging device that captures an image with an imaging means and records the obtained image data on a recording medium,
Humidity detecting means for detecting the humidity of the outside air;
Recording control means for adding the information on the humidity detected by the humidity detecting means to the image data obtained from the imaging means and recording it on the recording medium;
Search condition input means for inputting humidity as a search keyword for image data recorded on the recording medium;
Image data extraction means for comparing the humidity information of each image data recorded on the recording medium with the humidity input from the search condition input means, and extracting matching image data;
Display control means for causing the display means to display the image data extracted by the image data extraction means;
An imaging apparatus comprising: In an imaging device that captures an image with an imaging means and records the obtained image data on a recording medium,
Temperature detection means for detecting the temperature of the outside air;
Recording control means for adding information on the temperature detected by the temperature detection means to the image data obtained from the imaging means and recording the information on the recording medium;
Search condition input means for inputting temperature as a search keyword for image data recorded on the recording medium;
Image data extraction means for collating temperature information of each image data recorded on the recording medium and temperature input from the search condition input means, and extracting matching image data;
Display control means for causing the display means to display the image data extracted by the image data extraction means;
An imaging apparatus comprising: In an imaging device that captures an image with an imaging means and records the obtained image data on a recording medium,
Temperature detection means for detecting the temperature of the outside air;
Humidity detection means for detecting the humidity of the outside air;
Recording control means for adding the information on the temperature detected by the temperature detection means and the information on the humidity detected by the humidity detection means to the image data obtained from the imaging means as additional information and recording it on the recording medium When,
Search condition input means for inputting temperature, humidity or temperature and humidity as a search keyword for image data recorded on the recording medium;
Image data extraction means for collating the additional information of each image data recorded on the recording medium with the search keyword input from the search condition input means, and extracting matching image data;
Display control means for causing the display means to display the image data extracted by the image data extraction means;
An imaging apparatus comprising: The temperature detecting means includes
First temperature detection means provided outside the imaging apparatus body;
Second temperature detection means provided inside the imaging device body;
A temperature difference calculating means for calculating a temperature difference between the detected temperature of the first temperature detecting means and the detected temperature of the second temperature detecting means;
Correction information storage means storing correction information of the detected temperature of the first temperature detecting means according to the temperature difference between the detected temperature of the first temperature detecting means and the detected temperature of the second temperature detecting means;
Temperature correction means for acquiring correction information corresponding to the temperature difference calculated by the temperature difference calculation means from the correction information storage means, and correcting the temperature detected by the first temperature detection means;
The imaging apparatus according to claim 2, wherein the temperature detected by the first temperature detection unit corrected by the temperature correction unit is set as a temperature of outside air.

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