preferred embodiments of this invention will now be described with reference to the accompanying drawings . fig1 is a schematic view showing a use example of a personal computer 1 to which the invention is applied . in this example , a two - dimensional code 101 of a predetermined pattern is printed onto a menu selection card 100 , or a label on which the two - dimensional code 101 is printed is attached to the card 100 . the two - dimensional code 101 may be simply referred to as the 2d code hereunder where appropriate . as shown in fig2 the 2d code 101 constitutes a block unit - based rectangle measuring 9 . 5 blocks by 7 blocks . the rectangle comprises a cell part a and a logo part b , in black , separated by a single block space . the cell part a forms a square of 7 blocks per side comprising square cells arranged in a two - dimensional pattern . the logo part b includes a large - sized rectangle measuring 1 . 5 blocks by 7 blocks . illustratively , the logo part b has a logo mark such as cybercode ( registered trademark ) printed in blanks against a black background representing the code system name of the 2d code 101 . “ what we call “ cybercode ” is sony &# 39 ; s unique two - dimensional code system that offers about 16 . 77 million different patterns ( in 24 bits ). of these patterns , about one million patterns ( in 20 bits ) may be registered as desired for program start - up purposes . the remaining code patterns are reserved for future service expansion . “ cybercode ” works as an index to what is represented by the code in question , the index allowing relevant information to be retrieved from computer storage . when a user starts a program through a new interface feature “ cybercode finder ”, the user finds that the corresponding information leaps from the object having the “ cybercode ” onto the computer screen .” the personal computer 1 is a notebook type computer comprising a ccd video camera 23 located in a display part 3 . illustratively , the personal computer 1 recognizes a pattern of the 2d code 101 on the basis of image data about the object 100 and 2d code 101 , the image data being acquired by the ccd video camera 23 . the personal computer 1 performs a process in accordance with the pattern of the 2d code 101 thus obtained . fig3 through 8 depict structures of a typical portable personal computer to which the invention is applied . the personal computer 1 is a mini - notebook type personal computer that primarily comprises a body 2 and a display part 3 attached swingingly to the body 2 . fig3 is a perspective view of the computer with the display part 3 swung open away from the body 2 . fig4 is a plan view of the computer in fig3 . fig5 is a left - hand side view of the computer with the display part 3 swung shut onto the body 2 . fig6 is a right - hand side view of the computer with the display part 3 swung open 180 degrees relative to the body 2 . fig7 is a front view of the computer in fig5 . fig8 is a bottom view of the computer in fig6 . the face of the body 2 comprises a keyboard 4 and a stick type pointing device 5 . the keyboard 4 is used to input characters , symbols , etc ., and the stick type pointing device 5 is operated to move a mouse cursor . also furnished on the body face are a speaker 8 for sound output and a shutter button 10 operated to take a picture using the ccd video camera 23 mounted on the display part 3 . a pawl 13 is provided at the upper end of the display part 3 . as shown in fig5 with the display part 3 swung closed onto the body 2 , the pawl 13 hooks on to a hole 6 in the body 2 . at the front of the body 2 is a slide lever 7 furnished in a crosswise movable fashion . the slide lever 7 is used to lock and unlock the pawl 13 so that the pawl 13 is engaged with and disengaged from the hole 6 . with the pawl 13 unlocked , the display part 3 may be swung open away from the body 2 . adjacent to the pawl 13 is a microphone 24 which , as depicted in fig8 may pick up sound not only from the front but also from the back side of the body 2 . the front of the body 2 further comprises a programmable power key ( ppk ) 9 . an air outlet 11 is provided on the right - hand side of the body 2 , as shown in fig6 . at the lower end in front of the body 2 is an air inlet 14 as depicted in fig7 . to the right of the air outlet 11 is a slot 12 that accommodates a pcmcia ( personal computer memory card international association ) card ( called a pc card ). an lcd ( liquid crystal display ) 21 for displaying images is provided on the front of the display part 3 . at the upper end of the lcd 21 is an image pickup part 22 mounted rotatably on the display part 3 . more specifically , the image pickup part 22 is rotatable to any position within a range of 180 degrees in the same direction as the lcd 21 and in the opposite direction thereof ( i . e ., toward the back ). the image pickup part 22 is furnished with the ccd video camera 23 . at the lower end of the display part 3 on the body side is a group of lamps including a power lamp pl , a battery lamp bl , a message lamp ml and other leds . reference numeral 40 in fig5 denotes a power switch furnished on the left - hand side of the body 2 , and reference numeral 25 in fig7 represents an adjusting ring used to adjust the focus of the ccd video camera 23 . reference numeral 26 in fig8 stands for a cover that conceals an opening through which to install an additional memory into the body 2 , and reference numeral 41 denotes a hole through which to insert a pin to unlock the cover 26 . fig9 illustrates an internal structure of the personal computer 1 . an internal bus 51 is connected to a cpu ( central processing unit ) 52 , a pc card 53 inserted as needed , a ram ( random access memory ) 54 , and a graphic chip 81 . the internal bus 51 is coupled to an external bus 55 . the external bus 55 , for its part , is connected to a hard disk drive ( hdd ) 56 , an i / o ( input / output ) controller 57 , a keyboard controller 58 , a stick type pointing device controller 59 , a sound chip 60 , an lcd controller 83 , and a modem 50 . the cpu 52 is a controller that controls diverse computer functions . the pc card 53 is installed as needed when an optional function is to be added . image data captured by the ccd video camera 23 are forwarded to a processing part 82 for processing . the image data processed by the processing part 82 are input to the graphic chip 81 . the graphic chip 81 stores the input video data into an internal vram 81 a , and retrieves the data from the memory as needed for output to the lcd controller 83 . given the image data from the graphic chip 81 , the lcd controller 83 outputs the data to the lcd 21 for display . back lights 84 are provided to illuminate the lcd 21 from the back . when the personal computer 1 is booted up , an electronic mail program ( an application program ) 54 a , an auto pilot program ( another application program ) 54 b and the os ( operating program ) 54 c are transferred from the hdd 56 to the ram 54 and retained therein . the electronic mail program 54 a is a program that exchanges communication messages with an external entity using a communication line such as a telephone line and by way of a network . a received mail acquisition function is specifically included in the electronic mail program 54 a . the received mail acquisition function checks a mail server 93 to see if a mail box 93 a therein contains any mail addressed to this program ( i . e ., to the user ). if any such mail is found in the mail box 93 a , the received mail acquisition function carries out a suitable process to acquire that mail . the auto pilot program 54 b is a program that starts up and carries out a plurality of predetermined processes ( or programs ) in a predetermined sequence . the os ( operating system ) 54 c controls basic computer functions . typical operating systems are windows 95 ( registered trademark ), windows 98 ( registered trademarks ), and the like . meanwhile , as shown in fig1 , the hard disk drive ( hdd ) 56 connected to the external bus 55 contains the electronic mail program 56 a , auto pilot program 56 b , os ( operating system ) 56 c , a two - dimensional code database ( called the 2d code database hereunder ) 56 d , a finder application program ( called the fa program hereunder ) 56 e , n two - dimensional code associated application programs ( called the 2d code programs hereunder ) 56 f - 1 through 56 f - n ( the programs may be generically referred to as the 2d code program 56 f if distinction between the individual programs is unnecessary ), and a 2d code program menu information database ( called the menu information database hereunder ) 56 g . the 2d code database 56 d stores identification numbers of two - dimensional codes ( called 2d code ids ) attached to previously registered menu selection cards , such as 2d code ids of the 2d codes 101 . the fa program 56 e illustratively carries out a two - dimensional code extracting process whereby image data representing a given two - dimensional code are extracted from the image data held in the vram 81 a of the graphic chip 81 . the fa program 56 e also performs a remote pointing process ( described later ) to start the corresponding 2d code program 56 f accordingly . the fa program 56 e has an api ( application programming interface ) that is used to call the 2d code program 56 f and to exchange various messages . the 2d code programs 56 f - 1 through 56 f - n are application programs that are started by the fa program 56 e . the 2d code programs 56 f are capable of exchanging data with the fa program 56 e through the api of the latter . among these 2d code programs 56 f , the program 56 f - 1 comprises a menu selection program for displaying menu selection buttons and a pointing cursor , to be described later . the menu information database 56 g holds information about positions ( regions ) of displayed menu selection buttons . the database 56 g also retains program ids of the 2d code programs 56 f to be started corresponding to a selected menu selection button , as well as programs ids . identifying general application programs such as a word processor . during the booting process , the os 56 c , auto pilot program 56 b and electronic mail program 56 a are transferred successively from the hard disk drive 56 to the ram 54 and stored in that memory . returning to fig9 the i / o controller 57 has a microcontroller 61 equipped with an i / o interface 62 . the microcontroller 61 is constituted by the i / o interface 62 , a cpu 63 , a ram 64 and a rom 69 which are interconnected . the ram 64 includes a key input status register 65 , an led ( light - emitting diode ) control register 66 , a set time register 67 , and a register 68 . the set time register 67 is used to start the operation of a start sequence controller 76 when a time preset by the user ( i . e ., starting condition ) is reached . the register 68 holds a correspondence between a preset combination of operation keys ( starting condition ) on the one hand and an application program to be started on the other hand . when the user inputs the preset combination of operation keys , the corresponding application program ( e . g ., electronic mail program ) is started . when the fingertip - operated programmable power key ( ppk ) 9 is pushed , the key input status register 65 gets and retains an operation key flag . the led control register 66 is used to control the illumination of the message lamp ml indicating that boot - up status of an application program ( e . g ., electronic mail program ) which is held in the register 68 . a desired time of day may be set to the set time register 67 . the microcontroller 61 is connected to a backup battery 74 . the battery 74 allows contents of the registers 65 , 66 and 67 to be retained when power to the body 2 is turned off . the rom 69 in the microcontroller 61 contains in advance a wake - up program 70 , a key input monitoring program 71 and an led control program 72 . the rom 69 is illustratively composed of an eeprom ( electrically erasable and programmable read only memory ). the eeprom is also called a flash memory . the microcontroller 61 is connected to an rtc ( real - time clock ) 75 that keeps the current time . the wake - up program 70 in the rom 69 is a program that checks to see if a preset time in the set time register 67 is reached on the basis of time - of - day data from the rtc 75 . when the preset time is reached , the wake - up program 70 starts up a predetermined process ( or program ). the key input monitoring program 71 continuously monitors whether the ppk 9 is pushed by the user . the led control program 72 controls the lighting of the message lamp ml . furthermore , the rom 69 contains a bios ( basic input / output system ) 73 . the bios is a software program that controls exchanges of data ( input and output ) between the os or application software on the one hand and peripheral devices ( e . g ., display part , keyboard , hard disk drive ) on the other hand . the keyboard controller 58 connected to the external bus 55 controls input from the keyboard 4 . the stick type pointing device controller 59 controls input from the stick type pointing device 5 . the sound chip 60 receives input from the microphone 24 , and supplies sound signals to the built - in speaker 8 . the modem 50 permits connection to a communication network such as the internet 92 and to the mail server 93 through a public telephone line 90 and an internet service provider 91 . the power switch 40 is operated to turn on and off the power supply . a half - push switch 85 is activated when the shutter button 10 is half - pushed . a full - push switch 86 is turned on when the shutter button 10 is fully pushed . a reverse switch 87 is turned on when the image pickup part 22 is rotated by 180 degrees ( i . e ., when the ccd video camera 23 is rotated into a direction suitable for picking up an image on the opposite side of the lcd 21 ). described below with reference to the flowchart of fig1 are steps in which the fa program 56 e carries out the remote pointing process in conjunction with the 2d code program 56 f - 1 ( menu selection program ). the fa program 56 e is first started from the hdd 56 . in step s 1 , the fa program 56 e executed by the cpu 52 acquires an image captured by the ccd video camera 23 . in step s 2 , the fa program 56 e causes the processing part 82 to process data representing the captured image , writes the processed image data to the vram 81 a of the graphic chip 81 , and controls the lcd controller 83 so as to display the captured image on a finder screen 201 of the lcd 21 as shown in fig1 . in the description that follows , the whole process in which the fa program 56 e causes the lcd controller 83 to display an image on the finder screen 201 of the lcd 21 will be simply described as the fa program 56 e itself displaying the image on the finder screen 201 . in step s 3 , the fa program 56 e extracts and recognizes a 2d code 101 from the image data representing the object image acquired by the ccd video camera 23 in step s 1 . at the same time , the fa program 56 e recognizes position information on the 2d code 101 relative to the object image displayed on the finder screen 201 ( e . g ., central point of the 2d code 101 ). in the example of fig1 , a 2d code 101 is extracted from an image of a menu selection card 100 captured by the ccd video camera 23 . the position and a 2d code id of the 2d code 101 in question are captured , and information about the captured position is acquired . after the fa program 56 e has recognized the 2d code id of the 2d code 101 and acquired its captured position information in step s 3 , step s 4 is reached . in step s 4 , a search is made through the 2d code database 56 d to see if the 2d code id recognized in step s 3 matches a 2d code established beforehand in connection with the menu selection program ( 2d code program 56 f - 1 ). if the 2d code id in question is judged in step s 4 to match the predetermined 2d code , step s 5 is reached . in step s 5 , a check is made to see if the menu selection program ( 2d code program 56 f - 1 ) is being active . if the program is not judged to be active , step s 6 is reached . in step s 6 , the menu selection program ( 2d code program 56 f - 1 ) is started . then the menu selection program executed by the cpu 52 searches the menu information database 56 g for a menu image comprising suitable selection buttons , and displays the retrieved menu image in overlaid relation to the captured image displayed in step s 2 . illustratively , the menu image appears on the finder screen 201 as shown in fig1 . information about regions representing four menu selection buttons 300 - 1 through 300 - 4 is retrieved from the menu information database 56 g , and the buttons are displayed on the basis of the retrieved region information . step s 6 is followed by step s 7 in which the fa program 56 e receives the relevant 2d code id from the menu selection program thus started . step s 7 is followed by step s 3 . if in step s 5 the menu selection program is judged to be already active , step s 8 is reached . in step s 8 , the menu selection program ( 2d code program 56 f - 1 ) displays a pointing cursor ( shown in fig1 ; simply called the cursor hereunder ) 301 corresponding to the captured position information on the 2d code 101 recognized in step s 3 . in the example of fig1 , the cursor 301 has a point a located at the center of the 2d code 101 , the point a being encircled by two concentric circles . two lines are shown crossing the point a , one paralleling the x - axis of the finder screen 201 , the other in parallel with the y - axis of the screen 201 . in step s 9 , the menu selection program ( 2d code program 56 f - 1 ) checks to see if the position pointed to by the cursor 301 in step s 8 ( e . g ., point a of the cursor 301 ) points to any one of the menu selection buttons 300 - 1 through 300 - 4 . if the point a of the cursor 301 is judged to be positioned in a region of the menu selection button 300 - i ( i = 1 in the example of fig1 ) as shown in fig1 , step s 10 is reached . for the description that follows , it is assumed that the point a of the cursor 301 points to the menu selection button 300 - i as illustrated in fig1 . in step s 10 , the menu selection program ( 2d code program 56 f - 1 ) permits display of only the menu selection button 300 - 1 pointed to by the cursor 301 ( i . e ., the button highlighted ) as shown in fig1 . the user is thus informed of the current selection of the menu selection button 300 - 1 . in step s 11 , the menu selection program ( 2d code program 56 f - 1 ) counts the time during which the cursor 301 is pointing to the menu selection button 300 - i . if the menu selection button 300 - i is judged to have been pointed to in excess of a predetermined period of time , the program goes to step s 12 . step s 12 can be reached solely upon elapse of at least a predetermined period of time during which the cursor 301 has kept pointing to the menu selection button 300 - i . this arrangement prevents a subsequent process from being carried out inadvertently with the cursor judged to be pointing to a different menu selection button 300 - i while the presented position of the menu selection card 100 has yet to be fixed . if in step s 11 the cursor 301 is judged to have pointed to the menu selection button 300 - i in excess of a predetermined period of time , the menu selection program ( 2d code program 56 f - 1 ) goes to step s 12 in which the program searches the menu information database 56 g for a program id held corresponding to the region information about the menu selection button 300 - i pointed to by the cursor 301 . when a program id is retrieved , the 2d code program 56 f or a general application program such as a word processor corresponding to the retrieved program id is started . thereafter the process of fig1 is terminated . if in step s 4 the fa program 56 e , following the search through the 2d code database 56 d , judges that the 2d code id recognized in step s 3 does not correspond to the previously established 2d code , then step s 13 is reached . in step s 13 , a 2d code program 56 f other than the menu selection program or a general application program such as a word processor having the program id in question is started . thereafter the process of fig1 is terminated . if in step s 9 the cursor 301 is not judged to be pointing to the menu selection button 300 - i , or if the cursor 301 is not judged in step s 11 to have pointed to the menu selection button 300 - i in excess of a predetermined period of time , then step s 3 is reached again . step s 3 and subsequent steps are then repeated . as described , when the cursor 301 at the relevant displayed position of a 2d code 101 is arranged to point to a menu selection button 300 for a certain period of time , the process corresponding to the button 300 is carried out without operation of the keyboard or mouse at all . a computer program designed to perform the above - described processes may be retained on such package media as floppy disks , cd - roms and dvds ; on semiconductor memories , magnetic disks and the like where the program is stored temporarily or permanently ; on wired and wireless communication media such as local area networks , the internet , digital satellite broadcasting networks ; or in diverse communication interfaces such as routers and modems for transmitting or receiving the program offered by the foregoing media . such media , networks , interfaces and other measures allow the program to be installed in computers for program execution . the image processing program storage medium as mentioned in this specification refers broadly to all such media , networks , interfaces and measures . as described and according to the inventive image processing apparatus , image processing method , and image processing program storage medium described above , a predetermined image pattern is first captured from an acquired object image . position information about the captured image pattern relative to the object image is then recognized . a menu image is displayed on the basis of the captured position information , and a previously related process is started accordingly . specifically , the user &# 39 ; s simple action of presenting a computer with a menu selection card with a suitable 2d code printed thereon causes the position of the 2d code to be captured . the captured position information is used as a basis for effecting remote operations such as menu selection and starting of an application program . this provides an easy - to - operate platform eliminating the need for complicated input operations done conventionally using the mouse and other input device . as many apparently different embodiments of this invention may be made without departing from the spirit and scope thereof , it is to be understood that the invention is not limited to the specific embodiments thereof except as defined in the appended claims .