Image sensing device and image sensing method

Abstract

The invention provides an image sensing device and an image sensing method. The image sensing device comprises a pixel array, a plurality of first row selection lines, a plurality of second row selection lines and a control circuit. A plurality of pixels in the pixel array are arranged to form a plurality of rows and a plurality of columns. The plurality of first row selection lines correspond to a plurality of rows, and the first group of pixels of each row are electrically connected to the corresponding first row selection line. The plurality of second row selection lines correspond to a plurality of rows, and the second group of pixels of each row are electrically connected to the corresponding second row selection line. The control circuit executes a high frame rate readout procedure to obtain an image frame. The high frame rate readout procedure includes a plurality of high frame rate readout cycles, and the plurality of rows are divided into selectable portions and non-selectable portions. In each high frame rate readout period, the control circuit selects a first group of pixels of a first row that have not been selected and a second group of pixels of a second row that has not been selected from the selectable portion and reads out signals of the selected pixels and does not select an unselectable portion of the plurality of rows.

Description

Technical Field

[0001] The present application relates to a device and a method, and in particular to an image sensing device and an image sensing method. Background Art

[0002] For existing image sensor chips, frame rate is an important characteristic, which needs to be improved or maintained to a certain extent to meet the requirements of higher resolution in recent years.

[0003] Generally speaking, the frame rate depends on the number of pixel rows of the image sensor chip and the time required to read one pixel row. Typically, when the resolution is halved in height (number of pixel rows) and width (number of pixel columns), the frame rate doubles.

[0004] For example, if the frame rate at 1280x800 resolution is 60 frames per second (FPS), the frame rate at 640x400 resolution can reach 120 FPS. However, under such resolution conditions, it is still desirable to achieve a higher frame rate. Summary of the invention

[0005] In view of the above technical deficiencies, the present application provides an image sensing device and an image sensing method, which can further improve the frame rate at the existing resolution.

[0006] In order to solve the above technical problems, one of the technical solutions adopted by the present application is to provide an image sensor device, wherein the image sensor device includes: a pixel array, wherein a plurality of pixels are arranged to form a plurality of rows and a plurality of columns; a plurality of first row selection lines, respectively corresponding to the plurality of rows, wherein a first group of pixels in each row is electrically connected to the corresponding first row selection line; a plurality of second row selection lines, respectively corresponding to the plurality of rows, wherein a second group of pixels in each row is electrically connected to the corresponding second row selection line; and a control circuit, which is configured to respond to the high frame rate mode being Enable, execute a high frame rate readout procedure to obtain an image frame, wherein the high frame rate readout procedure includes a plurality of high frame rate readout cycles, and a plurality of the rows are divided into an optional part and a non-selectable part for the high frame rate readout procedure; wherein, in each of the high frame rate readout cycles, the control circuit is configured to select a first group of the pixels of a first row that has not been selected and a second group of the pixels of a second row that has not been selected from the optional part of the plurality of the rows, and read out signals of the selected plurality of the pixels; and wherein the non-selectable part of the plurality of the rows is not selected in the high frame rate readout procedure.

[0007] Optionally, for each of the rows, the first group of pixels and the second group of pixels are alternately and repeatedly arranged in pairs.

[0008] Optionally, for each group of two adjacent rows, the first group of pixels and the second group of pixels in the first row each include a plurality of first pixels and a plurality of second pixels arranged alternately, and the first group of pixels and the second group of pixels in the second row each include a plurality of third pixels and a plurality of fourth pixels arranged alternately, and the second pixels and the third pixels correspond to the first optical wavelength.

[0009] Optionally, the first pixel corresponds to a second optical wavelength, and the fourth pixel corresponds to a third optical wavelength.

[0010] Optionally, the first optical wavelength corresponds to green, the second optical wavelength corresponds to blue, and the third optical wavelength corresponds to red.

[0011] Optionally, in each of the high frame rate readout cycles, the number of the selected multiple pixels corresponding to the first optical wavelength is greater than the number of the selected multiple pixels corresponding to the second optical wavelength, and is greater than the number of the selected multiple pixels corresponding to the third optical wavelength.

[0012] Optionally, the selectable portion of the plurality of rows includes the (1+(i-1)*4)th row and the (2+(i-1)*4)th row, where i is an integer from 1 to N / 4, and N is the total number of the plurality of rows.

[0013] Optionally, the control circuit is also configured to execute a normal readout program including a plurality of normal readout cycles in response to the normal readout mode being enabled, wherein, in each of the normal readout cycles, the control circuit selects a first group of the pixels and a second group of the pixels of a row that has not yet been selected, and reads out the signals of the selected plurality of the pixels.

[0014] Optionally, the image sensing device further comprises a plurality of readout lines electrically connected to the control circuit, wherein the readout lines correspond to the plurality of columns respectively, and the plurality of pixels in each column are electrically connected to the corresponding readout lines.

[0015] Optionally, each of the pixels includes: a photodiode; and a row selection switch electrically connected between the photodiode and the corresponding readout line, wherein, in response to the pixel being selected, the row selection switch is turned on so that the control circuit reads out the signal of the selected pixel.

[0016] In order to solve the above technical problems, another technical solution adopted by the present application is to provide an image sensing method, which is applicable to an image sensing device, wherein the image sensing device includes a pixel array in which a plurality of pixels are arranged to form a plurality of rows and a plurality of columns, a plurality of first row selection lines, a plurality of second row selection lines and a control circuit, wherein the image sensing method includes: configuring the control circuit to execute a high frame rate readout procedure in response to a high frame rate mode being enabled to obtain an image frame, wherein the high frame rate readout procedure includes a plurality of high frame rate readout cycles, and the first group of the pixel electrodes of each row is read out. The control circuit is configured to electrically connect to the corresponding first row selection line, the second group of pixels of each row is electrically connected to the corresponding second row selection line, and the plurality of rows are divided into an optional part and a non-selectable part for the high frame rate readout procedure; and the control circuit is configured to select, in each high frame rate readout cycle, the first group of pixels of the first row that has not been selected and the second group of pixels of the second row that has not been selected from the optional part of the plurality of rows, and read out the signals of the selected plurality of pixels, wherein the non-selectable part of the plurality of rows is not selected in the high frame rate readout procedure.

[0017] Optionally, in the image sensing method, for each of the rows, the first group of pixels and the second group of pixels are alternately and repeatedly arranged in pairs.

[0018] Optionally, in the image sensing method, for each group of two adjacent rows, the first group of pixels and the second group of pixels in the first row each include a plurality of first pixels and a plurality of second pixels arranged alternately, and the first group of pixels and the second group of pixels in the second row each include a plurality of third pixels and a plurality of fourth pixels arranged alternately, and the second pixels and the third pixels correspond to a first optical wavelength.

[0019] Optionally, in the image sensing method, the first pixel corresponds to a second optical wavelength, and the fourth pixel corresponds to a third optical wavelength.

[0020] Optionally, in the image sensing method, the first optical wavelength corresponds to green, the second optical wavelength corresponds to blue, and the third optical wavelength corresponds to red.

[0021] Optionally, in the image sensing method, in each of the high frame rate readout cycles, the number of the selected multiple pixels corresponding to the first optical wavelength is greater than the number of the selected multiple pixels corresponding to the second optical wavelength, and is greater than the number of the selected multiple pixels corresponding to the third optical wavelength.

[0022] Optionally, in the image sensing method, the selectable part of the multiple rows includes the (1+(i-1)*4)th row and the (2+(i-1)*4)th row, where i is an integer from 1 to N / 4, and N is the total number of the multiple rows.

[0023] Optionally, the image sensing method further includes: configuring the control circuit to execute a normal readout program including a plurality of normal readout cycles in response to the normal readout mode being enabled; and configuring the control circuit to select a first group of pixels and a second group of pixels of a row that has not been selected in each of the normal readout cycles, and to read out signals of the selected plurality of pixels.

[0024] Optionally, in the image sensing method, the image sensing device also includes a plurality of readout lines electrically connected to the control circuit, the readout lines respectively correspond to the plurality of columns, and the plurality of pixels in each column are electrically connected to the corresponding readout lines.

[0025] Optionally, in the image sensing method, each of the pixels includes: a photodiode; and a row selection switch electrically connected between the photodiode and the corresponding readout line, wherein the image sensing method further includes: configuring the control circuit to turn on the row selection switch in response to the pixel being selected, and read out the signal of the selected pixel.

[0026] To further understand the features and technical contents of the present application, please refer to the following detailed description and drawings of the present application. However, the drawings provided are only for reference and illustration and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 FIG. 1 is a circuit layout diagram of a pixel according to an embodiment of the present application.

[0028] Figure 2 yes Figure 1 A simplified circuit layout of a pixel.

[0029] Figure 3 FIG. 4 is a schematic diagram of a control circuit and a pixel array according to an embodiment of the present application.

[0030] Figure 4 This is a flow chart of the image sensing method of the present application.

[0031] Figure 5 A schematic diagram showing how pixels of a pixel array are selected in a first high frame rate readout cycle in a high frame rate readout procedure. DETAILED DESCRIPTION

[0032] The following is an explanation of the implementation methods of the "image sensing device and image sensing method" disclosed in this application through specific embodiments. Those skilled in the art can understand the advantages and effects of this application from the contents disclosed in this specification. This application can be implemented or applied through other different specific embodiments, and the details in this specification can also be modified and changed based on different viewpoints and applications without departing from the concept of this application. In addition, the drawings of this application are only simple schematic illustrations and are not depicted in actual size. It is stated in advance. The following implementation methods will further explain the relevant technical content of this application in detail, but the disclosed content is not intended to limit the scope of protection of this application.

[0033] It should be understood that, although the terms "first", "second", "third", etc. may be used herein to describe various components or signals, these components or signals should not be limited by these terms. These terms are mainly used to distinguish one component from another component, or one signal from another signal. In addition, the term "or" used herein may include any one or more combinations of the associated listed items depending on the actual situation.

[0034] Figure 1 is a circuit layout diagram of a pixel according to an embodiment of the present application. Figure 2 yes Figure 1 A simplified circuit layout of a pixel, Figure 3 FIG. 4 is a schematic diagram of a control circuit and a pixel array according to an embodiment of the present application.

[0035] refer to Figures 1 to 3 The present application embodiment provides an image sensor device 100, which includes a pixel array 1, a first row selection line rsel <0> rsel <2> ,…rsel <14> , the second row selection line rsel <1> rsel <3> ,…rsel <15> and a control circuit 2.

[0036] In the pixel array 1, a plurality of pixels R, G, and B in the pixel array 1 are arranged to form a plurality of rows and a plurality of columns. For example, Figure 1 The pixel array 1 shown includes 8 rows and 8 columns, but the present application is not limited thereto. <0> rsel <2> ,…rsel <14> Corresponding to multiple rows respectively, similarly, the second row selection line rsel <1> rsel <3> ,…rsel <15> They also correspond to multiple rows respectively.

[0037] The image sensing device 100 further includes a readout line PXO electrically connected to the control circuit 2. <0> To PXO <7> . Readout line PXO <0> To PXO <7> The pixels R, G and / or B in each column are electrically connected to the corresponding readout line PXO. <0> 、PXO <1> , ... or PXO <7> .

[0038] like Figure 1 As shown, each pixel R, G, B may be a 4T CMOS pixel, which includes a photodiode PD, a holding transistor TG, a reset transistor RST, a source follower transistor SF, and a row selection switch (transistor) RS.

[0039] One end of the holding transistor TG is connected to the photodiode PD, and the other end is connected to the floating diffusion node FD. The reset transistor RST is connected between the common voltage source VDD and the floating diffusion node FD. One end of the source follower transistor SF is connected to the common voltage source VDD, and the other end is connected to one end of the row selection transistor RS. The row selection transistor RSEL is electrically connected between the photodiode PD and the corresponding readout line PXO, and more specifically, the row selection transistor RSEL is electrically connected between the source follower transistor SF and the readout line PXO.

[0040] It should be noted that in Figure 3 In the example, each pixel R, G, B is simplified to Figure 2 The pixel circuit shown in FIG. Figure 2 As shown, only the source follower transistor SF, the row selection transistor RSEL and the readout line PXO are retained.

[0041] In the pixel readout cycle triggered by the control circuit 2, the photodiode PD is used to receive light energy and generate corresponding charges, the holding transistor TG is turned on by the holding signal Stg, the reset transistor RST is turned off by the reset signal Srst, and the row selection transistor RS is enabled by the selection signal Ssel to sample the reset voltage of the floating diffusion node FD in response to the pixel being selected, so that the control circuit 2 can read the signal of the selected pixel.

[0042] The control circuit 2 may be a microprocessor which combines the functionality of a central processing unit on a single integrated circuit (IC) or at least several integrated circuits.

[0043] In existing image sensing devices, the general configuration of the sensor array may include a configuration similar to Figure 2 8x8 pixel array. Basically, all pixels on a column are connected to the same readout line, and each pixel row shares the same row select signal. If there is a high frame rate requirement, the common practice is to reduce the frame resolution to achieve a higher frame rate. However, the frame rate may be limited in this control scheme.

[0044] In order to further improve the frame rate at a reduced frame resolution, the present application uses a row selection line with a specific configuration. Figure 3As shown, the first group of pixels in each row is electrically connected to the corresponding first row selection line RSEL through the row selection transistor RSEL. <0> rsel <2> , ..., or rsel <14> The second group of pixels in each row is electrically connected to the corresponding second row selection line RSEL through the row selection transistor RSEL <1> rsel <3> , ..., or rsel <15> .

[0045] For example, the first group of pixels may include pixels connected to the readout lines PXO, <0> 、PXO <1> 、PXO <4> and PXO <5> The second group of pixels may include pixels R, G, B, respectively connected to the readout lines PXO <2> 、PXO <3> 、PXO <6> and PXO <7> Pixels R, G, B.

[0046] For each row, the first group of pixels (i.e., pixels connected to the read lines PXO, <0> 、PXO <1> 、PXO <4> 、PXO <5> The pixels R, G, B) of the second group of pixels (ie, pixels connected to the read lines PXO <2> 、PXO <3> 、PXO <6> 、PXO <7> The pixels R, G, B) are arranged alternately and repeatedly in pairs.

[0047] In addition, for each group of two adjacent rows, the first group of pixels and the second group of pixels in the first row each include a first pixel and a second pixel arranged alternately, and the first group of pixels and the second group of pixels in the second row each include a third pixel and a fourth pixel arranged alternately, and the second pixel and the third pixel correspond to the first light wavelength. In some embodiments, the first pixel corresponds to the second optical wavelength, the fourth pixel corresponds to the third optical wavelength, and the first optical wavelength, the second optical wavelength, and the third optical wavelength may correspond to green, blue, and red, respectively. It should be noted that the color corresponding to each pixel R, G, B represents the color that the photodiode PD disposed therein is set to detect. In other embodiments, pixels corresponding to invisible light wavelengths may also be applied.

[0048] The following Figure 3 The configuration method is given as an example. Figure 3 , for the first row and the second row (i.e., the lowest row and the row adjacent to the lowest row), the first group of pixels and the second group of pixels in the first row each include alternating red pixels R and green pixels G, and the first group of pixels and the second group of pixels in the second row each include alternating green pixels G and blue pixels B.

[0049] In addition, for the first row of pixels ( Figure 3The lowest row in the <0> 、PXO <1> 、PXO <4> and PXO <5> The pixels R and G are connected to the corresponding first row selection line rsel <0> , respectively connected to the readout line PXO <2> 、PXO <3> 、PXO <6> and PXO <7> The pixels R and G are connected to the corresponding second row selection line rsel <1> .

[0050] Similarly, for the second row of pixels ( Figure 3 The row above the lowest row in the graph is connected to the readout line PXO <0> 、PXO <1> 、PXO <4> and PXO <5> The pixels G and B are connected to the corresponding first row selection line rsel <0> , and are connected to the readout line PXO <2> 、PXO <3> 、PXO <6> and PXO <7> The pixels G and B are connected to the corresponding second row selection line rsel <1> .

[0051] In this configuration, the control circuit 2 may be configured to execute a normal readout procedure including a plurality of normal readout cycles in response to the normal readout mode being enabled.

[0052] In each normal readout cycle, the first group of pixels and the second group of pixels of the row that has not been selected may be selected to read out the signals of the selected pixels.

[0053] For example, in the first normal readout cycle, the rows that have not been selected may be the first row to the eighth row of the pixel array 1. At this time, the first row is selected first, and the first group of pixels selected by the control circuit 2 in the first normal readout cycle may be the pixels in the first row that are respectively connected to the readout lines PXO <0> 、PXO <1> 、PXO <4> 、PXO <5> The pixels R and G connected to each other, and the second group of pixels selected in the first normal readout cycle can be the pixels in the first row respectively connected to the readout line PXO <2> 、PXO <3> 、PXO <6> 、PXO <7> Connected pixels R, G. Therefore, the control circuit 2 reads out the signals of the selected pixels, that is, the first row of pixels R, G, and the control circuit 2 can obtain the image data corresponding to the position of the selected pixel in the current frame.

[0054] In the second normal readout cycle, the rows that have not been selected can now be the second to eighth rows of the pixel array 1. At this time, the second row is selected, and the first group of pixels selected by the control circuit 2 in the second normal readout cycle can be the pixels in the second row that are respectively connected to the readout lines PXO <0> 、PXO <1> 、PXO <4> 、PXO <5> The pixels G and B connected to each other, the second group of pixels selected in the second normal readout cycle can be the pixels in the second row respectively connected to the readout line PXO <2> 、PXO <3> 、PXO <6> 、PXO <7> Therefore, the control circuit 2 reads out the signals of the selected pixels (i.e., the pixels G and B in the second row). After repeating the normal readout cycle until there are no more unselected rows in the pixel array 1, the control circuit 2 can obtain the image data of all pixels R, G, and B to obtain an image frame corresponding to the first resolution.

[0055] Please refer to Figure 4 , which is a flow chart of the image sensing method of the present application. In another aspect of the present application, the present application also provides an image sensing method, which can be applied to Figure 1 The image sensing device shown in FIG. 1 is not limited thereto. Figure 3 As shown, the image sensing method may include the following steps:

[0056] Step S100: enabling a high-frame rate (HFR) mode of the image sensor device.

[0057] In response to the HFR mode being enabled, the image sensing method proceeds to step S102 : configuring the control circuit to execute an HFR readout procedure.

[0058] In step S102 , the HFR readout procedure may include a plurality of HFR readout cycles, and the rows of the pixel array 1 are divided into a selectable portion and a non-selectable portion for the HFR readout procedure.

[0059] See also Figure 5 , a schematic diagram showing that pixels of a pixel array are selected in the first high frame rate readout cycle in the high frame rate readout procedure. As shown in the figure, the selectable portion may be half of all rows, that is, the first row, the second row, the fifth row, and the sixth row of the pixel array 1. Therefore, the non-selectable portion may be the other half of all rows, that is, the third row, the fourth row, the seventh row, and the eighth row of the pixel array 1.

[0060] The image sensing method enters step S104: configuring the control circuit to select a first group of pixels of a first row that has not been selected and a second group of pixels of a second row that has not been selected from an optional portion of multiple rows in each high frame rate readout cycle, and read out signals of the selected pixels.

[0061] It should be noted that step S104 is repeated until the unselected row cannot be selected from the selectable part, and the unselectable part of all the rows divided in step S102 cannot be selected in the HFR readout procedure. In more detail, the selectable part of all the rows may include the (1+(i-1)*4)th row and the (2+(i-1)*4)th row, where i is an integer from 1 to N / 4, and N is the number of rows.

[0062] For example, in the first HFR readout cycle, the first unselected row may be the first row and the fifth row of the pixel array 1, and the second unselected row may be the second row and the sixth row of the pixel array 1. In this case, the first row is selected first, so the first group of pixels selected by the control circuit 2 in the first HFR readout cycle may be the readout lines PXO in the first row respectively connected to the pixels. <0> 、PXO <1> 、PXO <4> and PXO <5> The pixels R, G, and the second group of pixels selected in the first HFR readout cycle may be pixels in the second row connected to the readout lines PXO <2> 、PXO <3> 、PXO <6> and PXO <7> Therefore, when the control circuit 2 reads out the pixels G and B in the first row, which are respectively connected to the readout line PXO <0> 、PXO <1> 、PXO <4> 、PXO <5> The pixels R, G and the second row are connected to the readout line PXO <2> 、PXO <3> 、PXO <6> 、PXO <7> When the signals of the connected pixels G and B are received, the control circuit 2 can obtain the image data corresponding to the selected pixel position in the current frame.

[0063] Next, in the second HFR readout cycle, only the fifth row is left as the unselected first row, and the unselected second row may be the sixth row of the pixel array 1. Therefore, the first group of pixels selected by the control circuit 2 in the second HFR readout cycle may be the pixels in the fifth row that are respectively connected to the readout lines PXO <0> 、PXO <1> 、PXO <4> and PXO <5> The pixels R, G, and the second group of pixels selected in the second HFR readout cycle may be pixels in the sixth row connected to the readout lines PXO <2> 、PXO <3> 、PXO <6> and PXO <7> Pixels G, B.

[0064] Therefore, in the second HFR readout cycle, the signal of the selected pixel is currently the signal of the pixel connected to the readout line PXO in the fifth row. <0> 、PXO <1> 、PXO <4> and PXO <5> The pixels R, G and the sixth row are connected to the readout line PXO <2> 、PXO <3> 、PXO <6> and PXO <7> The pixels G and B can be read out by the control circuit 2 to obtain the image data at the corresponding position of the selected pixel in the current frame.

[0065] It should be noted that, in each HFR readout cycle, the number of selected pixels corresponding to the first optical wavelength (i.e., green) is greater than the number of selected pixels corresponding to the second optical wavelength (i.e., blue), and greater than the number of selected pixels corresponding to the third optical wavelength (i.e., red). In this way, twice as many green pixels as red or blue pixels are set in the pixel array 1 to simulate the physiological function of the human eye, thereby obtaining a frame image that is closer to the effect seen by the human eye.

[0066] After that, the image sensing method enters step S106: obtaining an image frame. By making the resolution lower than the resolution of the above-mentioned normal readout procedure, the HFR readout procedure can be executed in a faster manner to obtain the image frame. For example, if the frame rate at a resolution of 1280x800 is 60FPS, then using the image sensing device and image sensing method provided by the present application, the frame rate at a resolution of 640x400 can reach 240FPS, which is faster than the existing image sensor chip at the same reduced resolution.

[0067] Advantageous Effects of Embodiments

[0068] In summary, the image sensing device and image sensing method provided by the present application can obtain image frames faster than the normal readout procedure under the premise of reducing the resolution by executing the HFR readout procedure, and is also faster than the existing image sensor chip with the same reduced resolution. It is worth noting that the present application can be applied to multi-wavelength pixel design, such as different color pixel design, and can also be applied to monochrome pixel design applications.

[0069] The contents disclosed above are only preferred feasible embodiments of the present application, and are not intended to limit the protection scope of the claims of the present application. Therefore, all equivalent technical changes made using the contents of the present application specification and drawings are included in the protection scope of the claims of the present application.

Claims

1. An image sensing device, characterized in that: The image sensing device comprises: A pixel array in which a plurality of pixels are arranged to form a plurality of rows and a plurality of columns; a plurality of first row selection lines, corresponding to the plurality of rows respectively, wherein a first group of pixels in each row is electrically connected to the corresponding first row selection line; a plurality of second row selection lines, corresponding to the plurality of rows respectively, wherein the second group of pixels in each row is electrically connected to the corresponding second row selection line; and a control circuit configured to, in response to the high frame rate mode being enabled, execute a high frame rate readout procedure to obtain an image frame, wherein the high frame rate readout procedure includes a plurality of high frame rate readout cycles, and a plurality of the rows are divided into a selectable portion and a non-selectable portion for the high frame rate readout procedure; wherein, in each of the high frame rate readout cycles, the control circuit is configured to select a first group of pixels of a first row that has not been selected and a second group of pixels of a second row that has not been selected from the selectable portion of the plurality of rows, and read out signals of the selected plurality of pixels; and Wherein, the non-selectable portion of the plurality of rows is not selected in the high frame rate readout procedure.

2. The image sensor device according to claim 1, characterized in that: For each of the rows, the first group of pixels and the second group of pixels are alternately and repeatedly arranged in pairs.

3. The image sensor device according to claim 2, characterized in that: For each group of two adjacent rows, the first group of pixels and the second group of pixels in the first row each include a plurality of first pixels and a plurality of second pixels arranged alternately, the first group of pixels and the second group of pixels in the second row each include a plurality of third pixels and a plurality of fourth pixels arranged alternately, and the second pixels and the third pixels correspond to a first optical wavelength.

4. The image sensor device according to claim 3, characterized in that: The first pixel corresponds to a second optical wavelength, and the fourth pixel corresponds to a third optical wavelength.

5. The image sensor device according to claim 4, characterized in that: The first optical wavelength corresponds to green, the second optical wavelength corresponds to blue, and the third optical wavelength corresponds to red.

6. The image sensor device according to claim 3, characterized in that: In each of the high frame rate readout cycles, the number of the selected plurality of pixels corresponding to the first optical wavelength is greater than the number of the selected plurality of pixels corresponding to the second optical wavelength, and is greater than the number of the selected plurality of pixels corresponding to the third optical wavelength.

7. The image sensor device according to claim 1, characterized in that: The selectable portion of the plurality of rows includes the (1+(i-1)*4)th row and the (2+(i-1)*4)th row, where i is an integer from 1 to N / 4, and N is the total number of the plurality of rows.

8. The image sensor device according to claim 1, characterized in that: The control circuit is further configured to execute a normal readout procedure including a plurality of normal readout cycles in response to the normal readout mode being enabled, In each of the normal readout cycles, the control circuit selects the first group of pixels and the second group of pixels of a row that has not been selected, and reads out signals of the selected plurality of pixels.

9. The image sensor device according to claim 1, characterized in that: The image sensing device further includes a plurality of readout lines electrically connected to the control circuit, wherein the readout lines correspond to the plurality of columns, respectively, and the plurality of pixels in each column are electrically connected to the corresponding readout lines.

10. The image sensor device according to claim 9, characterized in that: Each of the pixels comprises: photodiode; and a row selection switch electrically connected between the photodiode and the corresponding readout line, In response to the pixel being selected, the row selection switch is turned on, so that the control circuit reads out the signal of the selected pixel.

11. An image sensing method, characterized in that: The image sensing method is applicable to an image sensing device, wherein the image sensing device includes a pixel array in which a plurality of pixels are arranged to form a plurality of rows and a plurality of columns, a plurality of first row selection lines, a plurality of second row selection lines, and a control circuit, and the image sensing method includes: configuring the control circuit to execute a high frame rate readout procedure to obtain an image frame in response to a high frame rate mode being enabled, wherein the high frame rate readout procedure includes a plurality of high frame rate readout cycles, a first group of the pixels of each row is electrically connected to a corresponding first row selection line, a second group of the pixels of each row is electrically connected to a corresponding second row selection line, and a plurality of the rows are divided into a selectable portion and a non-selectable portion for the high frame rate readout procedure; and The control circuit is configured to select, in each of the high frame rate readout cycles, a first group of pixels of a first row that has not been selected and a second group of pixels of a second row that has not been selected from the optional portion of the plurality of rows, and read out signals of the selected plurality of pixels, wherein the non-selectable portion of the plurality of rows is not selected in the high frame rate readout procedure.

12. The image sensing method according to claim 11, characterized in that: For each of the rows, the first group of pixels and the second group of pixels are alternately and repeatedly arranged in pairs.

13. The image sensing method according to claim 12, characterized in that: For each group of two adjacent rows, the first group of pixels and the second group of pixels in the first row each include a plurality of first pixels and a plurality of second pixels arranged alternately, the first group of pixels and the second group of pixels in the second row each include a plurality of third pixels and a plurality of fourth pixels arranged alternately, and the second pixels and the third pixels correspond to a first optical wavelength.

14. The image sensing method according to claim 13, characterized in that: The first pixel corresponds to a second optical wavelength, and the fourth pixel corresponds to a third optical wavelength.

15. The image sensing method according to claim 14, characterized in that: The first optical wavelength corresponds to green, the second optical wavelength corresponds to blue, and the third optical wavelength corresponds to red.

16. The image sensing method according to claim 14, characterized in that: In each of the high frame rate readout cycles, the number of the selected plurality of pixels corresponding to the first optical wavelength is greater than the number of the selected plurality of pixels corresponding to the second optical wavelength, and is greater than the number of the selected plurality of pixels corresponding to the third optical wavelength.

17. The image sensing method according to claim 11, characterized in that: The selectable portion of the plurality of rows includes the (1+(i-1)*4)th row and the (2+(i-1)*4)th row, where i is an integer from 1 to N / 4, and N is the total number of the plurality of rows.

18. The image sensing method according to claim 11, characterized in that: The image sensing method further comprises: configuring the control circuit to execute a normal readout procedure including a plurality of normal readout cycles in response to the normal readout mode being enabled; and The control circuit is configured to select the first group of pixels and the second group of pixels of a row that has not been selected in each normal readout cycle, and read out signals of the selected plurality of pixels.

19. The image sensing method according to claim 11, characterized in that: The image sensing device further includes a plurality of readout lines electrically connected to the control circuit, the readout lines respectively corresponding to the plurality of columns, and the plurality of pixels in each column are electrically connected to the corresponding readout lines.

20. The image sensing method according to claim 19, characterized in that: Each of the pixels comprises: photodiode; and a row selection switch electrically connected between the photodiode and the corresponding readout line, Wherein, the image sensing method further comprises: The control circuit is configured to turn on the row selection switch and read out the signal of the selected pixel in response to the pixel being selected.

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