Image generation devices and image processing systems for converting resolutions of image data captured by image sensors mounted on movable-body apparatuses

An image generation device comprising:

• a receiver which, in operation, receives travel information about a travel state of a movable-body apparatus;
• and
• a controller which, in operation, selects, based on the travel information received by the receiver, a first partial region from an entirety of a plurality of pixels of an image sensor or an entirety of image data captured by the image sensor, and generates image data in which a region other than the first partial region has a resolution lower than a resolution of the first partial region, the image sensor being configured to be mounted to the movable-body apparatus and being configured to capture an area in a traveling direction of the movable-body apparatus,
• wherein each of the plurality of pixels of the image sensor belongs to one of a plurality of segments that are predetermined or the entirety of image data is divided into the plurality of segments that are predetermined,
• the controller determines a resolution of each of the plurality of segments based on the travel information to make a resolution of at least a part of the region other than the first partial region lower than the resolution of the first partial region,
• the plurality of segments includes one or more segments belonging to the region other than the first partial region and one or more segments belonging to the first partial region,
• the controller generates the image data in which a resolution of the one or more segments belonging to the region other than the first partial region is lower than a resolution of the one or more segments belonging to the first partial region, and
• when the controller determines, based on the travel information, that the movable-body apparatus has almost reached one of a top of an upslope and a bottom of a downslope, the controller sets, as the first partial region, one of the plurality of segments that includes a pixel receiving light at one of a downward angle and an upward angle of the movable-body apparatus among the plurality of pixels.

An image generation device comprising:

• a receiver which, in operation, receives travel information about a travel state of a movable-body apparatus;
• and
• a controller which, in operation, selects, based on the travel information received by the receiver, a first partial region from an entirety of a plurality of pixels of an image sensor or an entirety of image data captured by the image sensor, and generates image data in which a region other than the first partial region has a resolution lower than a resolution of the first partial region, the image sensor being configured to be mounted to the movable-body apparatus and being configured to capture an area in a traveling direction of the movable-body apparatus,
• wherein each of the plurality of pixels of the image sensor belongs to one of a plurality of segments that are predetermined or the entirety of image data is divided into the plurality of segments that are predetermined,
• the controller determines a resolution of each of the plurality of segments based on the travel information to make a resolution of at least a part of the region other than the first partial region lower than the resolution of the first partial region,
• the plurality of segments includes one or more segments belonging to the region other than the first partial region and one or more segments belonging to the first partial region,
• the controller generates the image data in which a resolution of the one or more segments belonging to the region other than the first partial region is lower than a resolution of the one or more segments belonging to the first partial region,
• the controller further generates image format information of the image data, and
• the image format information includes at least a resolution of an image obtained from the image sensor, the resolution of the image data, a total number of the plurality of segments, and the resolution of each of the plurality of segments.

An image processing system comprising:

• an image generation device including:
• a receiver which, in operation, receives travel information about a travel state of a movable-body apparatus;
• and
• a controller which, in operation, selects, based on the travel information received by the receiver, a first partial region from an entirety of a plurality of pixels of an image sensor or an entirety of image data captured by the image sensor, and generates image data in which a region other than the first partial region has a resolution lower than a resolution of the first partial region, the image sensor being configured to be mounted to the movable-body apparatus and being configured to capture an area in a traveling direction of the movable-body apparatus;
• and
• an image processing device which, in operation, converts the resolution of the image data,
• wherein each of the plurality of pixels of the image sensor belongs to one of a plurality of segments that are predetermined or the entirety of image data is divided into the plurality of segments that are predetermined,
• the controller determines a resolution of each of the plurality of segments based on the travel information to make a resolution of at least a part of the region other than the first partial region lower than the resolution of the first partial region,
• the plurality of segments includes one or more segments belonging to the region other than the first partial region and one or more segments belonging to the first partial region,
• the controller generates image data in which a resolution of the one or more segments belonging to the region other than the first partial region is lower than a resolution of the one or more segments belonging to the first partial region,
• the controller further generates image format information of the image data, and
• the image format information includes at least a resolution of an image obtained from the image sensor, the resolution of the image data, a total number of the plurality of segments, and the resolution of each of the plurality of segments.