# US 2024/0179418 A1 · Apparatus having exposure control, imaging apparatus, control method, and storage medium > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2024/0179418 A1 - Document ID: US20240179418A1 - Status: Published application - Kind: A1 - Application number: 18/516,790 - Filed: 2023-11-21 - Published: 2024-05-30 - Earliest claimed: 2022-11-28 - Assignees: Canon Kabushiki Kaisha - Applicants: Canon Kabushiki Kaisha - Inventors: YOMA KURIKI - Web page: https://patentgrep.com/patent/US20240179418A1 ## CPC - H04N 23/73: by influencing the exposure time - G06V 10/60: relating to illumination properties, e.g. using a reflectance or lighting model - G09G 5/377: for mixing or overlaying two or more graphic patterns (G09G5/02, G09G5/397 take precedence) - H04N 23/61: based on recognised objects - H04N 23/611: where the recognised objects include parts of the human body - H04N 23/667: Camera operation mode switching, e.g. between still and video, sport and normal or high- and low-resolution modes - H04N 23/70: Circuitry for compensating brightness variation in the scene - H04N 23/71: Circuitry for evaluating the brightness variation - G06V 2201/07: Target detection - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION - G06V: IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING - G09G: ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION (arrangements for transferring data between digital computers and displays G06F3/14; static indicating arrangements comprising an association of a number of separate sources or light control cells G09F9/00; static indicating arrangements comprising integral associations of a number of light sources H01J, H01K, H10H, H05B33/12; scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission, details thereof H04N1/00) ## Abstract An apparatus includes an acquisition unit configured to acquire an image, a detection unit configured to detect an object from the image, a photometry unit configured to perform photometry on the image in accordance with a set photometry mode, wherein the photometry mode includes a first photometry mode in which an exposure is determined by weighting a region having a relatively high luminance value in comparison with a region having a relatively low luminance value at least in a photometry region, and wherein, in a case where the detection unit detects the object in the image in a state where the first photometry mode is selected, the photometry unit performs photometry in the first photometry mode by using a region of the object as the photometry region. ## Claims ### Claim 1 An apparatus comprising: at least one processor; at least one memory coupled to the at least one processor storing instructions that, when executed by the at least one processor, cause the at least one processor to function as: an acquisition unit configured to acquire an image; a detection unit configured to detect an object from the image; a calculation unit configured to calculate luminance values of the image; and a photometry unit configured to perform photometry on the image in accordance with a set photometry mode, wherein the photometry mode includes a first photometry mode in which an exposure is determined by weighting a region having a relatively high luminance value in comparison with a region having a relatively low luminance value at least in a photometry region, and wherein, in a case where the detection unit detects the object in the image in a state where the first photometry mode is selected, the photometry unit performs photometry in the first photometry mode by using a region of the object as the photometry region. ### Claim 2 (depends on 1) The apparatus according to claim 1, wherein the photometry unit changes photometry processing in accordance with the type of the object detected by the detection unit. ### Claim 3 (depends on 2) The apparatus according to claim 2, wherein, in a case where the detection unit detects a vehicle, the photometry unit determines the exposure by using photometry values of a first image and photometry values of a second image acquired after the first image, and an average of photometry values of one or more images acquired before the first image. ### Claim 4 (depends on 2) The apparatus according to claim 2, wherein, in a case where the detection unit detects a region corresponding to the sky, the photometry unit lowers the exposure based on photometry in the first photometry mode by an amount smaller than an amount of a case in which no region corresponding to the sky is detected. ### Claim 5 (depends on 1) The apparatus according to claim 1, wherein, in a case where the detection unit detects the object in a first image in the first photometry mode and detects no object in a second image acquired after the first image, the photometry unit limits a variation amount of the exposure. ### Claim 6 (depends on 5) The apparatus according to claim 5, wherein the photometry unit determines the exposure by using photometry values of the first image and photometry values of the second image, and an average of photometry values of one or more images acquired before the first image. ### Claim 7 (depends on 1) The apparatus according to claim 1, wherein the detection unit detects the object from the image in accordance with an object type selected by a user. ### Claim 8 (depends on 7) The apparatus according to claim 7, wherein the object type is a type of an object that has been selected as an Auto Focus (AF) target. ### Claim 9 (depends on 1) The apparatus according to claim 1, further comprising a display unit configured to display the image, wherein the display unit displays an image on which a detection frame is superimposed on a region corresponding to the object detected by the detection unit. ### Claim 10 (depends on 1) The apparatus according to claim 1, wherein the photometry mode includes a second photometry mode different from the first photometry mode. ### Claim 11 (depends on 10) The apparatus according to claim 10, wherein the second photometry mode is a photometry mode in which photometry is performed to set an exposure of the entire image to a proper exposure based on luminance values of the entire image. ### Claim 12 (depends on 10) The apparatus according to claim 10, wherein the second photometry mode is a photometry mode in which photometry is performed by weighting an average luminance value in the region of an object detected by the detection unit in comparison with a luminance value of a region of the image other than the region of the object. ### Claim 13 (depends on 1) An imaging apparatus comprising: a sensor configured to capture an object image; and the apparatus according to claim 1. ### Claim 14 A method for controlling an apparatus, the method comprising: acquiring an image; performing photometry on the image in accordance with a set photometry mode; and detecting an object from the image, wherein the photometry mode includes a first photometry mode in which an exposure is determined by weighting a region having a relatively high photometry value in comparison with a region having a relatively low photometry value at least in a photometry region, and wherein, when an object is detected in the image in a state where the first photometry mode is selected, photometry is performed in the first photometry mode by using a region of the object as the photometry region. ### Claim 15 (depends on 14) The method according to claim 14, further comprising changing photometry processing in accordance with the type of the detected object. ### Claim 16 (depends on 14) The method according to claim 14, further comprising limiting a variation amount of the exposure, in a case where the detecting detects the object in a first image in the first photometry mode and detects no object in a second image acquired after the first image. ### Claim 17 A non-transitory computer-readable storage medium storing a program for causing a computer to execute a method, the method comprising: acquiring an image; performing photometry on the image in accordance with a set photometry mode; and detecting an object from the image, wherein the photometry mode includes a first photometry mode in which an exposure is determined by weighting a region having a relatively high photometry value in comparison with a region having a relatively low photometry value at least in a photometry region, and wherein, when an object is detected in the image in a state where the first photometry mode is selected, photometry is performed in the first photometry mode by using a region of the object as the photometry region. ### Claim 18 (depends on 17) The non-transitory computer-readable storage medium according to claim 17, further comprising changing photometry processing in accordance with the type of the detected object. ### Claim 19 (depends on 17) The non-transitory computer-readable storage medium according to claim 17, further comprising limiting a variation amount of the exposure, in a case where the detecting detects the object in a first image in the first photometry mode and detects no object in a second image acquired after the first image.